Generally disclosed herein is a system and method for correcting an audio spatial image within a vehicle. The gain and the delay of sound sources, such as speakers within a vehicle, are adjusted such that the sound sources arrive at a listener simultaneously and with the same amplitude. Symmetric output channel pairs may be identified from the sound sources, and power spectrum differences between the symmetric output channel pairs may be computed. A power spectrum equalization transfer function may be obtained and applied to each output channel pair. A center image of the sound sources may be detected, and the center image of the sound sources may be adjusted by applying additional amplitude or phase panning such that the center image may be placed in a desired position.
Generally disclosed herein is a mechanism to increase the perceived sound field width and depth in an automotive environment without causing excessive or unnatural reverberation. The audio ambiance may be added using a cross-analysis of a vehicle cabin and a typical room's sound decay characteristics. The late reverb insertion and extraction time may be determined from the target room response and the vehicle cabin response, and the late reverberation transfer function may be computed. Once the late reverberation transfer function is obtained, the combined cabin transfer function can be measured, and a scale factor for energy equalization derived. The total energy of the sound within the vehicle cabin may be normalized and the reverberation frequency spectrum may be equalized such that the late reverberation within the vehicle cabin is synthesized with the desired energy decay of the late reverberation of the sound in a room.
A server includes a communication port connected to an internet of things (IoT) cloud, at least one hardware processor connected to the communication port, and memory including instructions. The instructions, when performed by the at least one hardware processor, cause the at least one hardware processor to perform operations comprising identifying, to a client application of a separate computing device, one or more available radio broadcast stations available for transmitting a message in a radio broadcast signal to one or more end devices of an IoT; receiving a message from the client application indicating one or more of the available radio broadcast stations for transmitting the message; and sending the encrypted message via the IoT cloud to one or more other servers included with radio broadcast automation equipment of the one or more indicated available radio broadcast stations.
H04H 60/09 - Dispositions de commande de dispositifs en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion; Dispositions de commande de services relatifs à la radiodiffusion
A method comprises partitioning a data object into a sequence of nested data objects each including fragments having K symbols per fragment. The method further comprises processing the nested data objects to produce sequences of coded payloads corresponding to the nested data objects. The processing includes, for each nested data object: using (n, K) coding for which n>K, individually coding the fragments of the nested data object into codewords with n codeword symbols per codeword; and generating, from the codewords, a sequence of coded payloads that are unique for the nested data object. The method further comprises transmitting coded payloads of the sequences of coded payloads.
Described herein are various embodiments of a system and method for varying the modulation intensity by scaling the constellation points of hierarchically modulated advanced FM service modes in HD Radio transmission systems. These embodiments include the novel ability to adjust the performance of the base layer of a hierarchically modulated signal relative to the overlay layer of the hierarchically modulated signal.
H04H 20/30 - Dispositions de radiodiffusion simultanée de plusieurs informations par un canal unique
H04H 60/07 - Dispositions pour la production d'informations radiodiffusées; Dispositions pour la production d'informations relatives à la radiodiffusion en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion; Dispositions pour la production simultanée d'informations radiodiffusées et d'informations relatives à la radiodiffusion caractérisées par les procédés de production
09 - Appareils et instruments scientifiques et électriques
Produits et services
Radio broadcasting services, namely, transmission of digital radio signals incorporating program information Digital radio broadcasting equipment, namely, computer hardware and software for use in conversion of analog radio signals into digital signals and delivery of broadcast information; digital radio receivers, namely, computer hardware and software for use in decoding digital transmission signals into audio and user selection and acquisition of broadcast content via radio receiver devices
7.
MOBILE HYBRID RADIO RECEIVER SERVICE FOLLOWING SOURCE SELECTION
A method comprises, at a hybrid radio receiver configured to recover audio content separately from a broadcast radio signal and from a wireless network connection, receiving a reception metric that indicates audio quality of the audio content in the broadcast radio signal at any given time. The method further comprises, deriving, from fluctuations of the reception metric over time, fluctuation indicators that indicate audio quality fluctuations that are likely noticeable to a listener. The method further comprises deriving a switching decision to use the broadcast radio signal or the wireless network connection as a source of the audio content based on a previous switching decision and the fluctuation indicators to introduce hysteresis into the switching decision, and selecting the broadcast radio signal or the wireless network connection as the source of the audio content based on the switching decision.
H04H 20/26 - Dispositions de commutation de systèmes de distribution
H04W 4/06 - Répartition sélective de services de diffusion, p.ex. service de diffusion/multidiffusion multimédia; Services à des groupes d’utilisateurs; Services d’appel sélectif unidirectionnel
H04H 20/24 - Dispositions de distribution d'informations identiques par l'intermédiaire d’un système de radiodiffusion et d’un système autre que de radiodiffusion
8.
METHOD AND DETECTOR FOR PROVIDING AN ALERT MESSAGE FOR LEFT/RIGHT PHASE INVERSION
Embodiments of a method and detector for providing an alert message at a unit of a digital radio broadcast system is provided. The method comprises providing a multichannel audio stream comprising a first audio channel and a second audio channel, analyzing the first audio channel and the second audio channel regarding phase inversion of the channels, and creating the alert message if the first audio channel is phase inverted with respect to the second audio channel.
H04H 20/47 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la radiodiffusion spécialement adaptés aux systèmes de radiodiffusion couverts par les groupes spécialement adaptés aux systèmes de radiodiffusion stéréophonique
G10L 19/008 - Codage ou décodage du signal audio multi-canal utilisant la corrélation inter-canaux pour réduire la redondance, p.ex. stéréo combinée, codage d’intensité ou matriçage
H04H 60/07 - Dispositions pour la production d'informations radiodiffusées; Dispositions pour la production d'informations relatives à la radiodiffusion en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion; Dispositions pour la production simultanée d'informations radiodiffusées et d'informations relatives à la radiodiffusion caractérisées par les procédés de production
H04H 20/12 - Dispositions de contrôle, de test ou de dépannage
9.
METHOD AND SYSTEM FOR SYNCHRONIZING AUDIO TRANSMISSION IN A SINGLE FREQUENCY NETWORK
Methods and systems for synchronizing audio transmission in a single frequency network. Aspects of a method include preparing in a first exporter a first digital audio signal for transmission to a first exciter engine; buffering the first digital audio signal and transmitting the buffered first digital audio signal to the first exciter engine; preparing in a second exporter a second digital audio signal for transmission to a second exciter engine; buffering the second digital audio signal; transmitting the first digital audio signal from the first control unit to the second control unit; receiving control commands regarding a buffered first or second digital audio signal, wherein the second control unit transmits the buffered first or second digital audio signal dependent on the received control commands; and synchronized transmission of the buffered first digital audio signal and the buffered first or second digital audio signal based on a received trigger signal.
Embodiments of a method and system for transmitting an audio stream and a digital radio broadcasting system are disclosed. The method comprises providing an audio source remotely located to a digital radio broadcasting system, encoding at the audio source an audio stream with an audio codec resulting in an encoded audio stream, transmitting the encoded audio stream over a computer network to the digital radio broadcasting system, receiving the encoded audio stream and processing the encoded audio stream at the digital radio broadcasting system for broadcast by the digital radio broadcasting system without decoding of the encoded audio stream, and broadcasting the encoded audio stream by the digital radio broadcasting system.
H04H 60/07 - Dispositions pour la production d'informations radiodiffusées; Dispositions pour la production d'informations relatives à la radiodiffusion en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion; Dispositions pour la production simultanée d'informations radiodiffusées et d'informations relatives à la radiodiffusion caractérisées par les procédés de production
11.
PROVIDING EMERGENCY ALERTS TO CONNECTED RADIO RECEIVERS
An audio delivery system (100) can include an alert processor (108) configured to parse alert content. The alert processor can receive first data representing the alert content. The alert processor can convert the alert content to an alert message that includes alert text and parameters. A connected radio server (120), coupled to the alert processor via internet protocol, can insert the alert content into a data stream. The connected radio server can receive second data representing the alert message from the alert processor via internet protocol. The connected radio server can receive instructions from the alert processor via internet protocol to incorporate the alert message into the data stream. The data stream can include an audio stream and the alert message. The connected radio server can provide the data stream to a connected radio receiver (102) via internet protocol.
H04H 60/87 - Dispositions caractérisées par des systèmes de transmission autres que ceux utilisés pour la radiodiffusion, p.ex. Internet caractérisées par le système de transmission lui-même le système de transmission étant Internet l’accès se faisant au moyen de réseaux informatiques
H04H 20/59 - Dispositions spécialement adaptées à des applications spécifiques, p.ex. aux informations sur le trafic ou aux récepteurs mobiles aux situations d'urgence ou de détresse
H04H 60/78 - Dispositions caractérisées par des systèmes de transmission autres que ceux utilisés pour la radiodiffusion, p.ex. Internet caractérisées par des sites de départ ou des sites de destination
12.
METHOD FOR TIME ALIGNING IN-BAND ON-CHANNEL DIGITAL RADIO AUDIO WITH FM RADIO AUDIO
A method comprises: receiving a first audio stream that conveys audio content and a second audio stream that conveys the audio content and is delayed relative to the first audio stream by a time delay; one-sided filtering first audio segments of the first audio stream to pass only positive frequencies of the first audio segments to first filtered audio segments; one-sided filtering second audio segments of the second audio stream to pass only positive frequencies of the second audio segments to second filtered audio segments; cross correlating the first filtered audio segments against corresponding ones of the second filtered audio segments, to produce cross-correlation results; detecting a peak indicated by the cross- correlation results; and estimating the time delay based on a position of the peak, to produce an estimated time delay.
H04H 60/07 - Dispositions pour la production d'informations radiodiffusées; Dispositions pour la production d'informations relatives à la radiodiffusion en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion; Dispositions pour la production simultanée d'informations radiodiffusées et d'informations relatives à la radiodiffusion caractérisées par les procédés de production
H04H 20/12 - Dispositions de contrôle, de test ou de dépannage
H04H 20/22 - Dispositions de radiodiffusion d'informations identiques par l'intermédiaire de plusieurs systèmes de radiodiffusion
13.
METHOD FOR TIME ALIGNING IN-BAND ON-CHANNEL DIGITAL RADIO AUDIO WITH FM RADIO AUDIO
A method comprises: receiving a first audio stream that conveys audio content and a second audio stream that conveys the audio content and is delayed relative to the first audio stream by a time delay; one-sided filtering first audio segments of the first audio stream to pass only positive frequencies of the first audio segments to first filtered audio segments; one-sided filtering second audio segments of the second audio stream to pass only positive frequencies of the second audio segments to second filtered audio segments; cross correlating the first filtered audio segments against corresponding ones of the second filtered audio segments, to produce cross-correlation results; detecting a peak indicated by the cross- correlation results; and estimating the time delay based on a position of the peak, to produce an estimated time delay.
H04H 60/07 - Dispositions pour la production d'informations radiodiffusées; Dispositions pour la production d'informations relatives à la radiodiffusion en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion; Dispositions pour la production simultanée d'informations radiodiffusées et d'informations relatives à la radiodiffusion caractérisées par les procédés de production
H04H 20/12 - Dispositions de contrôle, de test ou de dépannage
H04H 20/22 - Dispositions de radiodiffusion d'informations identiques par l'intermédiaire de plusieurs systèmes de radiodiffusion
14.
QUANTIZED TRANSPORT FOR IMPORTER-EXPORTER AUDIO CLIENT IN DIGITAL RADIO BROADCAST
A method comprising: at an importer of an IBOC digital radio broadcasting system: establishing a data link to an audio client configured to buffer audio from an audio source over a buffering duration, to produce buffered audio; receiving, from the audio client, an indication of the buffering duration; identifying a logical channel of an IBOC waveform assigned to the audio client and configured to transmit PDUs of the audio at a PDU rate; computing a quantized number of PDUs that is greater than one into which the buffered audio is to be divided at the audio client based on the buffering duration and the PDU rate; sending, to the audio client, an indication of the quantized number of the PDUs; and upon sending importer data requests to the audio client over the data link, receiving, from the audio client, client data responses each including the quantized number of the PDUs.
H04H 60/07 - Dispositions pour la production d'informations radiodiffusées; Dispositions pour la production d'informations relatives à la radiodiffusion en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion; Dispositions pour la production simultanée d'informations radiodiffusées et d'informations relatives à la radiodiffusion caractérisées par les procédés de production
H04H 20/42 - Dispositions de gestion des ressources
15.
QUANTIZED TRANSPORT FOR IMPORTER-EXPORTER AUDIO CLIENT IN DIGITAL RADIO BROADCAST
A method comprising: at an importer of an IBOC digital radio broadcasting system: establishing a data link to an audio client configured to buffer audio from an audio source over a buffering duration, to produce buffered audio; receiving, from the audio client, an indication of the buffering duration; identifying a logical channel of an IBOC waveform assigned to the audio client and configured to transmit PDUs of the audio at a PDU rate; computing a quantized number of PDUs that is greater than one into which the buffered audio is to be divided at the audio client based on the buffering duration and the PDU rate; sending, to the audio client, an indication of the quantized number of the PDUs; and upon sending importer data requests to the audio client over the data link, receiving, from the audio client, client data responses each including the quantized number of the PDUs.
H04H 60/07 - Dispositions pour la production d'informations radiodiffusées; Dispositions pour la production d'informations relatives à la radiodiffusion en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion; Dispositions pour la production simultanée d'informations radiodiffusées et d'informations relatives à la radiodiffusion caractérisées par les procédés de production
H04H 20/42 - Dispositions de gestion des ressources
16.
LOCATION FILTERING OF DIGITAL EMERGENCY ALERTS FOR AUTOMOTIVE AND MOBILE DEVICES
Embodiments of a method for rendering an alert message at a user device and of an emergency alert location filtering system are disclosed. In an embodiment the method comprises determining a current geographical location of the user device, receiving alert messages, each alert message comprising message information and a geographical code, and configuring an alert filter at the user device to allow alert messages to pass the alert filter for rendering at the user device that comprise a geographical code which corresponds to a geographical area in which the current geographical location of the user device is located.
H04W 4/021 - Services concernant des domaines particuliers, p.ex. services de points d’intérêt, services sur place ou géorepères
H04W 4/02 - Services utilisant des informations de localisation
H04W 4/029 - Services de gestion ou de suivi basés sur la localisation
H04W 4/90 - Services pour gérer les situations d’urgence ou dangereuses, p.ex. systèmes d’alerte aux séismes et aux tsunamis
H04L 51/00 - Messagerie d'utilisateur à utilisateur dans des réseaux à commutation de paquets, transmise selon des protocoles de stockage et de retransmission ou en temps réel, p.ex. courriel
17.
Broadcast radio transmissions to control electronically configurable traffic signs
A method comprises: generating a traffic sign message configured to configure an active traffic sign that is electronically configurable; encrypting the traffic sign message to produce an encrypted traffic sign message; sending the encrypted traffic sign message to a radio broadcast transmitter; and at the radio broadcast transmitter, transmitting the encrypted traffic sign message in a radio broadcast signal; and at the active traffic sign: receiving the radio broadcast signal and recovering the encrypted traffic sign message from the radio broadcast signal; decrypting the encrypted traffic sign message to produce the traffic sign message; and configuring the active traffic sign according to the traffic sign message.
A method performed by a radio receiver comprises: receiving digital radio broadcast (DRB) signals on respective frequency channels; acquiring a list that identifies which of the DRB signals are all-digital signals; receiving a tune command to tune to a particular DRB signal among the DRB signals; and upon determining that the particular DRB signal is an all-digital signal based on the list: playing muted audio; while playing muted audio, tuning to the particular DRB signal based on the tune command and performing digital signal acquisition of the particular DRB signal; and when the digital signal acquisition is complete, performing digital demodulation of the particular DRB signal to recover digital audio, and switching from playing muted audio to playing digital audio.
A method comprises performing iterations of a peak-to-average ratio (PAR) reduction algorithm on a modulated OFDM symbol, each of the iterations including: clipping the modulated OFDM symbol to produce a clipped modulated OFDM symbol; subtracting the clipped modulated OFDM symbol from the modulated OFDM symbol to produce a difference signal; weighting the difference signal using a weight that varies across the iterations, to produce a weighted difference signal that varies across the iterations; subtracting the weighted difference signal from the modulated OFDM symbol to produce a modified modulated OFDM symbol; and performing further PAR reduction operations on the modified modulated OFDM symbol to produce a PAR- reduced OFDM symbol for use in a next iteration.
A method for processing a digital audio broadcast signal includes: separating an analog audio portion and a digital audio portion of the digital audio broadcast signal; determining the loudness of the analog audio portion and the digital audio portion over a first short time interval; using the loudness of the analog and digital audio portions to calculate a short term average gain; determining a long term average gain; converting one of the long term average gain or the short term average gain to dB; if an output has been blended to digital, adjusting a digital gain parameter by a preselected increment to produce a digital gain parameter; if an output has not been blended to digital, setting the digital gain parameter to the short term average gain; providing the digital gain parameter to an audio processor; and repeating the above steps using a second short time interval.
H04H 20/47 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la radiodiffusion spécialement adaptés aux systèmes de radiodiffusion couverts par les groupes spécialement adaptés aux systèmes de radiodiffusion stéréophonique
H03G 3/30 - Commande automatique dans des amplificateurs comportant des dispositifs semi-conducteurs
H04H 40/36 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la réception spécialement adaptés aux systèmes de radiodiffusion couverts par les groupes spécialement adaptés à la réception de la radiodiffusion stéréophonique
H03G 3/00 - Commande de gain dans les amplificateurs ou les changeurs de fréquence
A method comprises partitioning a data object into a sequence of nested data objects each including fragments having K symbols per fragment. The method further comprises processing the nested data objects to produce sequences of coded payloads corresponding to the nested data objects. The processing includes, for each nested data object: using (n, K) coding for which n>K, individually coding the fragments of the nested data object into codewords with n codeword symbols per codeword; and generating, from the codewords, a sequence of coded payloads that are unique for the nested data object. The method further comprises transmitting coded payloads of the sequences of coded payloads.
A method comprises partitioning a data object into a sequence of nested data objects each including fragments having K symbols per fragment. The method further comprises processing the nested data objects to produce sequences of coded payloads corresponding to the nested data objects. The processing includes, for each nested data object: using (n, K) coding for which n>K, individually coding the fragments of the nested data object into codewords with n codeword symbols per codeword; and generating, from the codewords, a sequence of coded payloads that are unique for the nested data object. The method further comprises transmitting coded payloads of the sequences of coded payloads.
A server includes a communication port connected to an internet of things (IoT) cloud, at least one hardware processor connected to the communication port, and memory including instructions. The instructions, when performed by the at least one hardware processor, cause the at least one hardware processor to perform operations comprising identifying, to a client application of a separate computing device, one or more available radio broadcast stations available for transmitting a message in a radio broadcast signal to one or more end devices of an IoT; receiving a message from the client application indicating one or more of the available radio broadcast stations for transmitting the message; and sending the encrypted message via the IoT cloud to one or more other servers included with radio broadcast automation equipment of the one or more indicated available radio broadcast stations.
A method performed by a cloud-based connected radio service associated with broadcast radio stations includes: receiving cellular network information and broadcast radio audio stream information from multiple client radios over wireless data connections with the multiple client radios; upon determining that the multiple client radios are all simultaneously accessing a same unicast audio stream associated with a particular broadcast radio station among the broadcast radio stations over a same cellular network based on the cellular network information and the broadcast radio audio stream information, configuring the same cellular network to convert a designated audio stream associated with the particular broadcast radio station to a multicast audio stream; and upon receiving a multicast address for the multicast audio stream from the same cellular network, sending the multicast address to the multiple client radios over the wireless data connections to enable the multiple client radios to access the multicast audio stream.
A method comprises, at a hybrid radio receiver configured to recover audio content separately from a broadcast radio signal and from a wireless network connection, receiving a reception metric that indicates audio quality of the audio content in the broadcast radio signal at any given time. The method further comprises, deriving, from fluctuations of the reception metric over time, fluctuation indicators that indicate audio quality fluctuations that are likely noticeable to a listener. The method further comprises deriving a switching decision to use the broadcast radio signal or the wireless network connection as a source of the audio content based on a previous switching decision and the fluctuation indicators to introduce hysteresis into the switching decision, and selecting the broadcast radio signal or the wireless network connection as the source of the audio content based on the switching decision.
H04H 20/22 - Dispositions de radiodiffusion d'informations identiques par l'intermédiaire de plusieurs systèmes de radiodiffusion
H04N 21/426 - Structure de client; Structure de périphérique de client Éléments internes de client
H04N 21/462 - Gestion de contenu ou de données additionnelles, p.ex. création d'un guide de programmes électronique maître à partir de données reçues par Internet et d'une tête de réseau ou contrôle de la complexité d'un flux vidéo en dimensionnant la résolution o
H04W 4/06 - Répartition sélective de services de diffusion, p.ex. service de diffusion/multidiffusion multimédia; Services à des groupes d’utilisateurs; Services d’appel sélectif unidirectionnel
26.
MOBILE HYBRID RADIO RECEIVER SERVICE FOLLOWING SOURCE SELECTION
A method comprises, at a hybrid radio receiver configured to recover audio content separately from a broadcast radio signal and from a wireless network connection, receiving a reception metric that indicates audio quality of the audio content in the broadcast radio signal at any given time. The method further comprises, deriving, from fluctuations of the reception metric over time, fluctuation indicators that indicate audio quality fluctuations that are likely noticeable to a listener. The method further comprises deriving a switching decision to use the broadcast radio signal or the wireless network connection as a source of the audio content based on a previous switching decision and the fluctuation indicators to introduce hysteresis into the switching decision, and selecting the broadcast radio signal or the wireless network connection as the source of the audio content based on the switching decision.
H04H 20/22 - Dispositions de radiodiffusion d'informations identiques par l'intermédiaire de plusieurs systèmes de radiodiffusion
H04W 4/06 - Répartition sélective de services de diffusion, p.ex. service de diffusion/multidiffusion multimédia; Services à des groupes d’utilisateurs; Services d’appel sélectif unidirectionnel
H04N 21/426 - Structure de client; Structure de périphérique de client Éléments internes de client
H04N 21/462 - Gestion de contenu ou de données additionnelles, p.ex. création d'un guide de programmes électronique maître à partir de données reçues par Internet et d'une tête de réseau ou contrôle de la complexité d'un flux vidéo en dimensionnant la résolution o
27.
Time-alignment measurement for hybrid HD radio™ technology
A method for processing a digital audio broadcast signal in a radio receiver, includes: receiving a hybrid broadcast signal; demodulating the hybrid broadcast signal to produce an analog audio stream and a digital audio stream; and using a normalized cross-correlation of envelopes of the analog audio stream and the digital audio stream to measure a time offset between the analog audio stream and the digital audio stream. The time offset can be used to align the analog audio stream and the digital audio stream for subsequent blending of an output of the radio receiver from the analog audio stream to the digital audio stream or from the digital audio stream to the analog audio stream.
H03D 3/00 - Démodulation d'oscillations modulées en angle
H04L 7/00 - Dispositions pour synchroniser le récepteur avec l'émetteur
H04L 12/18 - Dispositions pour la fourniture de services particuliers aux abonnés pour la diffusion ou les conférences
H04H 20/30 - Dispositions de radiodiffusion simultanée de plusieurs informations par un canal unique
H04H 40/00 - Dispositions spécialement adaptées à la réception d'informations radiodiffusées
H04H 40/18 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la réception
H04H 60/00 - Dispositions pour des applications de radiodiffusion en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion; Systèmes relatifs à la radiodiffusion
H04H 60/12 - Dispositions de contre-mesures lorsqu'une partie des informations radiodiffusées est indisponible où d'autres informations sont substituées à ladite partie indisponible des informations radiodiffusées
A system comprises an intermediate communication platform that provides an interface to an Internet network; and a first server including: a port operatively coupled to the intermediate communication platform, processing circuitry, and a service application for execution by the processor. The service application is configured to: receive geographic location information of a radio receiver via the intermediate communication platform; determine one or more radio broadcasts available to the radio receiver according to the geographic location information; and send metadata for the radio broadcast, the metadata including an indication whether content of the radio broadcast is suitable for an audio fingerprinting process to the radio receiver via the intermediate communication platform.
H04H 60/70 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des informations géographiques, p.ex. des cartes, des graphiques ou des atlas
H04H 60/73 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des méta-informations
H04H 60/46 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour reconnaître les préférences des utilisateurs
H04H 60/58 - Dispositions caractérisées par des composants spécialement adaptés à la surveillance, l'identification ou la reconnaissance, couverts par les groupes ou audio
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de position; Localisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
G10L 19/018 - Mise en place d’un filigrane audio, c. à d. insertion de données inaudibles dans le signal audio
G06F 16/683 - Recherche de données caractérisée par l’utilisation de métadonnées, p.ex. de métadonnées ne provenant pas du contenu ou de métadonnées générées manuellement utilisant des métadonnées provenant automatiquement du contenu
29.
PROVIDING EMERGENCY ALERTS TO CONNECTED RADIO RECEIVERS
An audio delivery system (100) can include an alert processor (108) configured to parse alert content. The alert processor can receive first data representing the alert content. The alert processor can convert the alert content to an alert message that includes alert text and parameters. A connected radio server (120), coupled to the alert processor via internet protocol, can insert the alert content into a data stream. The connected radio server can receive second data representing the alert message from the alert processor via internet protocol. The connected radio server can receive instructions from the alert processor via internet protocol to incorporate the alert message into the data stream. The data stream can include an audio stream and the alert message. The connected radio server can provide the data stream to a connected radio receiver (102) via internet protocol.
G08B 3/10 - Systèmes de signalisation audible; Systèmes d'appel sonore de personnes utilisant une transmission électromagnétique
G08B 27/00 - Systèmes d'alarme dans lesquels la condition déclenchant l'alarme est signalée par une station centrale à plusieurs sous-stations
H04H 20/59 - Dispositions spécialement adaptées à des applications spécifiques, p.ex. aux informations sur le trafic ou aux récepteurs mobiles aux situations d'urgence ou de détresse
30.
Method and apparatus for time alignment of analog and digital pathways in a digital radio receiver
A method for processing a radio signal includes producing first and second streams of audio samples; decimating the first and second streams of audio samples to produce first and second streams of decimated streams of audio samples; estimating a first offset value between corresponding samples in the first and second streams of decimated streams of audio samples; shifting one of the first and second streams of audio samples by a first shift value; decimating the first and second streams of audio samples to produce third and fourth streams of decimated audio samples; estimating a second offset value; determining a final offset value based on an intersection of ranges of valid results of the first and second offset values; and shifting one of the first and second streams of audio samples by the final offset value to align the first and second streams of audio samples.
H04H 20/22 - Dispositions de radiodiffusion d'informations identiques par l'intermédiaire de plusieurs systèmes de radiodiffusion
H04H 60/58 - Dispositions caractérisées par des composants spécialement adaptés à la surveillance, l'identification ou la reconnaissance, couverts par les groupes ou audio
A radio receiver comprises radio frequency (RF) receiver circuitry that receives a radio broadcast signal, an Internet network interface, a display, a memory, processing circuitry, and a client application including instructions for execution by the processing circuitry. The client application is configured to: determine geographic location information of the radio receiver; determine radio broadcasts that are available to the radio receiver using the geographical location information; select metadata, from metadata stored in the memory, that is associated with the radio broadcasts available to the radio receiver; and present information included in the selected metadata using the display according to the received radio broadcast signal.
H04H 60/85 - Dispositions caractérisées par des systèmes de transmission autres que ceux utilisés pour la radiodiffusion, p.ex. Internet caractérisées par le système de transmission lui-même le système de transmission étant Internet l’accès se faisant au moyen de réseaux téléphoniques qui sont des réseaux de communication mobile
H04H 60/51 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour identifier les sites des stations réceptrices
H04H 60/73 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des méta-informations
32.
CONNECTED RADIO LOCAL, ISOLATED, AND HYBRID IMPLEMENTATION
A radio receiver comprises radio frequency (RF) receiver circuitry that receives a radio broadcast signal, an Internet network interface, a display, a memory, processing circuitry, and a client application including instructions for execution by the processing circuitry. The client application is configured to: determine geographic location information of the radio receiver; determine radio broadcasts that are available to the radio receiver using the geographical location information; select metadata, from metadata stored in the memory, that is associated with the radio broadcasts available to the radio receiver; and present information included in the selected metadata using the display according to the received radio broadcast signal.
H04H 60/85 - Dispositions caractérisées par des systèmes de transmission autres que ceux utilisés pour la radiodiffusion, p.ex. Internet caractérisées par le système de transmission lui-même le système de transmission étant Internet l’accès se faisant au moyen de réseaux téléphoniques qui sont des réseaux de communication mobile
H04H 60/73 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des méta-informations
H04H 60/51 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour identifier les sites des stations réceptrices
A system comprises an intermediate communication platform that provides an interface to an Internet network; and a first server including: a port operatively coupled to the intermediate communication platform, processing circuitry, and a service application for execution by the processor. The service application is configured to: receive geographic location information of a radio receiver via the intermediate communication platform; determine one or more radio broadcasts available to the radio receiver according to the geographic location information; and send metadata for the radio broadcast, the metadata including an indication whether content of the radio broadcast is suitable for an audio fingerprinting process to the radio receiver via the intermediate communication platform.
H04H 60/41 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour identifier le temps ou l'espace de radiodiffusion pour identifier l'espace de radiodiffusion, c.-à-d. les canaux de radiodiffusion, les stations de radiodiffusion ou les zones de radiodiffusion
H04H 60/51 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour identifier les sites des stations réceptrices
H04H 60/73 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des méta-informations
H04H 60/82 - Dispositions caractérisées par des systèmes de transmission autres que ceux utilisés pour la radiodiffusion, p.ex. Internet caractérisées par le système de transmission lui-même le système de transmission étant Internet
A system comprises an intermediate communication platform that provides an interface to an Internet network; and a first server including: a port operatively coupled to the intermediate communication platform, processing circuitry, and a service application for execution by the processor. The service application is configured to: receive geographic location information of a radio receiver via the intermediate communication platform; determine one or more radio broadcasts available to the radio receiver according to the geographic location information; and send metadata for the radio broadcast, the metadata including an indication whether content of the radio broadcast is suitable for an audio fingerprinting process to the radio receiver via the intermediate communication platform.
H04H 60/41 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour identifier le temps ou l'espace de radiodiffusion pour identifier l'espace de radiodiffusion, c.-à-d. les canaux de radiodiffusion, les stations de radiodiffusion ou les zones de radiodiffusion
H04H 60/51 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour identifier les sites des stations réceptrices
H04H 60/73 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des méta-informations
H04H 60/82 - Dispositions caractérisées par des systèmes de transmission autres que ceux utilisés pour la radiodiffusion, p.ex. Internet caractérisées par le système de transmission lui-même le système de transmission étant Internet
A system comprises an intermediate communication platform that provides an interface to an Internet network; and a first server including: a port operatively coupled to the intermediate communication platform, processing circuitry, and a service application for execution by the processor. The service application is configured to: receive geographic location information of a radio receiver via the intermediate communication platform; determine one or more radio broadcasts available to the radio receiver according to the geographic location information; and send metadata for the radio broadcast, the metadata including an indication whether content of the radio broadcast is suitable for an audio fingerprinting process to the radio receiver via the intermediate communication platform.
H04H 60/70 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des informations géographiques, p.ex. des cartes, des graphiques ou des atlas
H04H 60/73 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des méta-informations
H04H 60/46 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour reconnaître les préférences des utilisateurs
H04H 60/58 - Dispositions caractérisées par des composants spécialement adaptés à la surveillance, l'identification ou la reconnaissance, couverts par les groupes ou audio
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de position; Localisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
G10L 19/018 - Mise en place d’un filigrane audio, c. à d. insertion de données inaudibles dans le signal audio
G06F 16/683 - Recherche de données caractérisée par l’utilisation de métadonnées, p.ex. de métadonnées ne provenant pas du contenu ou de métadonnées générées manuellement utilisant des métadonnées provenant automatiquement du contenu
36.
Connected Radio local, isolated, and hybrid implementation
A radio receiver comprises radio frequency (RF) receiver circuitry that receives a radio broadcast signal, an Internet network interface, a display, a memory, processing circuitry, and a client application including instructions for execution by the processing circuitry. The client application is configured to: determine geographic location information of the radio receiver; determine radio broadcasts that are available to the radio receiver using the geographical location information; select metadata, from metadata stored in the memory, that is associated with the radio broadcasts available to the radio receiver; and present information included in the selected metadata using the display according to the received radio broadcast signal.
H04H 60/42 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour identifier le temps ou l'espace de radiodiffusion pour identifier l'espace de radiodiffusion, c.-à-d. les canaux de radiodiffusion, les stations de radiodiffusion ou les zones de radiodiffusion pour identifier les zones de radiodiffusion
H04H 60/74 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des méta-informations utilisant des informations relatives aux programmes, p.ex. le titre, le compositeur ou l’interprète
37.
SYSTEM FOR SCANNING DIGITAL BROADCAST RADIO CONTENT
A radio broadcast signal receiver comprises tuner circuitry configured to receive a radio broadcast signal including digital audio content and processing circuitry. The processing circuitry is configured to: scan for radio broadcast signals by tuning the tuner circuitry to multiple radio broadcast signal frequencies and vary a time duration that the tuner circuitry is tuned to the radio broadcast signal frequencies during the scanning according to when digital audio content of the radio broadcast signals becomes available for play by the radio broadcast signal receiver.
H04H 60/41 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour identifier le temps ou l'espace de radiodiffusion pour identifier l'espace de radiodiffusion, c.-à-d. les canaux de radiodiffusion, les stations de radiodiffusion ou les zones de radiodiffusion
H04H 20/26 - Dispositions de commutation de systèmes de distribution
38.
Time-alignment measurement for hybrid HD radio™ technology
A method for processing audio signals in a radio transmitter, includes: receiving an analog audio sample stream and a digital audio sample stream; determining offsets in time between the analog audio stream and the digital audio stream using a normalized cross-correlation of audio envelopes of the analog audio sample stream and the digital audio sample stream; filtering the determined offsets in time to produce filtered offset values; determining an alignment slip adjustment value as a function of the filtered offset values; aligning the analog audio sample stream and the digital audio sample stream using the determined alignment slip adjustment value; and generating a hybrid radio signal for broadcast that includes time-aligned analog audio and digital audio.
H04L 12/18 - Dispositions pour la fourniture de services particuliers aux abonnés pour la diffusion ou les conférences
H04H 40/18 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la réception
H04H 40/00 - Dispositions spécialement adaptées à la réception d'informations radiodiffusées
H04H 60/00 - Dispositions pour des applications de radiodiffusion en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion; Systèmes relatifs à la radiodiffusion
H04H 20/18 - Dispositions de synchronisation de la radiodiffusion ou de la distribution par l'intermédiaire de plusieurs systèmes
H04L 7/00 - Dispositions pour synchroniser le récepteur avec l'émetteur
H04H 20/30 - Dispositions de radiodiffusion simultanée de plusieurs informations par un canal unique
H04H 60/12 - Dispositions de contre-mesures lorsqu'une partie des informations radiodiffusées est indisponible où d'autres informations sont substituées à ladite partie indisponible des informations radiodiffusées
39.
Advertising measurement and conversion measurement for radio systems
A system comprises an Internet network interface, and a first server. The first server include a first port operatively coupled to the Internet network interface, a memory, a processor, and a service application for execution by the processor. The service application is configured to receive a digital audio file and associated radio broadcast information via the Internet network interface, obtain an audio file identifier using a segment of the digital audio file, forward the digital audio file to a radio broadcast system according to the radio broadcast information, receive the segment of the digital audio file and associated radio reception information via the internet network interface, and identify the digital audio file and record the radio reception information for the identified digital audio file.
H04H 60/02 - Dispositions pour la production d'informations radiodiffusées; Dispositions pour la production d'informations relatives à la radiodiffusion en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion; Dispositions pour la production simultanée d'informations radiodiffusées et d'informations relatives à la radiodiffusion
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
H04W 4/029 - Services de gestion ou de suivi basés sur la localisation
H04H 20/57 - Dispositions spécialement adaptées à des applications spécifiques, p.ex. aux informations sur le trafic ou aux récepteurs mobiles aux récepteurs mobiles
H04H 60/31 - Dispositions de contrôle de l'utilisation des services de radiodiffusion
A system comprises an Internet network interface, and a first server. The first server include a first port operatively coupled to the Internet network interface, a memory, a processor, and a service application for execution by the processor. The service application is configured to receive a digital audio file and associated radio broadcast information via the Internet network interface, obtain an audio file identifier using a segment of the digital audio file, forward the digital audio file to a radio broadcast system according to the radio broadcast information, receive the segment of the digital audio file and associated radio reception information via the internet network interface, and identify the digital audio file and record the radio reception information for the identified digital audio file.
H04H 60/02 - Dispositions pour la production d'informations radiodiffusées; Dispositions pour la production d'informations relatives à la radiodiffusion en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion; Dispositions pour la production simultanée d'informations radiodiffusées et d'informations relatives à la radiodiffusion
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
H04W 4/029 - Services de gestion ou de suivi basés sur la localisation
H04H 60/31 - Dispositions de contrôle de l'utilisation des services de radiodiffusion
H04H 20/57 - Dispositions spécialement adaptées à des applications spécifiques, p.ex. aux informations sur le trafic ou aux récepteurs mobiles aux récepteurs mobiles
A system comprises a first server including a port, a memory, a processor operatively coupled to the port and memory, and a service application for execution by the processor. The service application is configured to: receive identification information related to an over-the-air radio broadcast via the port of the first server, wherein the identification information is transmitted to the first server using a radio broadcast receiver remote from the first server; communicate a request for automatic content recognition (ACR) of an Internet-based streaming version of the over-the-air radio broadcast; and receive metadata associated with the over-the-air radio broadcast in response to the request and initiate transmission of the metadata to the radio broadcast receiver.
H04H 60/74 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des méta-informations utilisant des informations relatives aux programmes, p.ex. le titre, le compositeur ou l’interprète
H04H 60/37 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour identifier des segments des informations radiodiffusées, p.ex. des scènes, ou extraire des identificateurs [ID] de programmes
H04H 60/58 - Dispositions caractérisées par des composants spécialement adaptés à la surveillance, l'identification ou la reconnaissance, couverts par les groupes ou audio
H04H 60/64 - Dispositions pour des services utilisant les résultats du contrôle, de l'identification ou de la reconnaissance, couverts par les groupes ou pour fournir des informations détaillées
H04H 60/82 - Dispositions caractérisées par des systèmes de transmission autres que ceux utilisés pour la radiodiffusion, p.ex. Internet caractérisées par le système de transmission lui-même le système de transmission étant Internet
H04H 60/61 - Dispositions pour des services utilisant les résultats du contrôle, de l'identification ou de la reconnaissance, couverts par les groupes ou
H04H 60/73 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des méta-informations
H04H 60/68 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques
H04H 20/31 - Dispositions de radiodiffusion simultanée de plusieurs informations par un canal unique au moyen de signaux intra bande, p.ex. un signal infra sonore ou un signal de repérage
H04H 20/72 - Systèmes sans fil de réseaux terrestres
A method comprises generating for a Global Navigation Satellite System (GNSS) a differential correction map (DCM) representing a non-planar surface of differential corrections that varies across a geographical area represented by the DCM, the differential corrections being based on a reference station constellation of GNSS reference stations having respective locations spanning the geographical area, the GNSS reference stations including physical or virtual reference stations.
G01S 19/07 - Systèmes de positionnement par satellite à radiophares émettant des messages horodatés, p.ex. GPS [Système de positionnement global], GLONASS [Système global de navigation par satellite] ou GALILEO Éléments coopérants; Interaction ou communication entre les différents éléments coopérants ou entre les éléments coopérants et les récepteurs fournissant des données pour corriger les données de positionnement mesurées, p.ex. DGPS [GPS différentiel] ou corrections ionosphériques
A method comprises generating for a Global Navigation Satellite System (GNSS) a differential correction map (DCM) representing a non-planar surface of differential corrections that varies across a geographical area represented by the DCM, the differential corrections being based on a reference station constellation of GNSS reference stations having respective locations spanning the geographical area, the GNSS reference stations including physical or virtual reference stations.
G01S 19/07 - Systèmes de positionnement par satellite à radiophares émettant des messages horodatés, p.ex. GPS [Système de positionnement global], GLONASS [Système global de navigation par satellite] ou GALILEO Éléments coopérants; Interaction ou communication entre les différents éléments coopérants ou entre les éléments coopérants et les récepteurs fournissant des données pour corriger les données de positionnement mesurées, p.ex. DGPS [GPS différentiel] ou corrections ionosphériques
G01S 19/00 - Systèmes de positionnement par satellite à radiophares; Détermination de position, de vitesse ou d'attitude au moyen de signaux émis par ces systèmes
G01S 5/00 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de position; Localisation par coordination de plusieurs déterminations de distance
A method comprises receiving an approximate location of a rover platform based on satellite signals for a Global Navigation Satellite System (GNSS), and receiving for the GNSS a differential correction map (DCM) representing a non-planar surface of differential corrections that varies across a geographical area represented by the DCM. The differential corrections are based on a reference station constellation of GNSS reference stations having respective locations spanning the geographical area. The method further comprises deriving DCM-based differential corrections for the satellite signals at the approximate location based on the DCM, correcting the satellite signals using the DCM-based differential corrections, and determining a location of the rover platform using the corrected satellite signals.
G01S 19/07 - Systèmes de positionnement par satellite à radiophares émettant des messages horodatés, p.ex. GPS [Système de positionnement global], GLONASS [Système global de navigation par satellite] ou GALILEO Éléments coopérants; Interaction ou communication entre les différents éléments coopérants ou entre les éléments coopérants et les récepteurs fournissant des données pour corriger les données de positionnement mesurées, p.ex. DGPS [GPS différentiel] ou corrections ionosphériques
A method comprises receiving an approximate location of a rover platform based on satellite signals for a Global Navigation Satellite System (GNSS), and receiving for the GNSS a differential correction map (DCM) representing a non-planar surface of differential corrections that varies across a geographical area represented by the DCM. The differential corrections are based on a reference station constellation of GNSS reference stations having respective locations spanning the geographical area. The method further comprises deriving DCM-based differential corrections for the satellite signals at the approximate location based on the DCM, correcting the satellite signals using the DCM-based differential corrections, and determining a location of the rover platform using the corrected satellite signals.
G01S 19/07 - Systèmes de positionnement par satellite à radiophares émettant des messages horodatés, p.ex. GPS [Système de positionnement global], GLONASS [Système global de navigation par satellite] ou GALILEO Éléments coopérants; Interaction ou communication entre les différents éléments coopérants ou entre les éléments coopérants et les récepteurs fournissant des données pour corriger les données de positionnement mesurées, p.ex. DGPS [GPS différentiel] ou corrections ionosphériques
G01S 19/00 - Systèmes de positionnement par satellite à radiophares; Détermination de position, de vitesse ou d'attitude au moyen de signaux émis par ces systèmes
G01S 5/00 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de position; Localisation par coordination de plusieurs déterminations de distance
A method comprises generating for a Global Navigation Satellite System (GNSS) a differential correction map (DCM) representing a non-planar surface of differential corrections that varies across a geographical area represented by the DCM, the differential corrections being based on a reference station constellation of GNSS reference stations having respective locations spanning the geographical area, the GNSS reference stations including physical or virtual reference stations.
G01S 19/07 - Systèmes de positionnement par satellite à radiophares émettant des messages horodatés, p.ex. GPS [Système de positionnement global], GLONASS [Système global de navigation par satellite] ou GALILEO Éléments coopérants; Interaction ou communication entre les différents éléments coopérants ou entre les éléments coopérants et les récepteurs fournissant des données pour corriger les données de positionnement mesurées, p.ex. DGPS [GPS différentiel] ou corrections ionosphériques
G01S 5/00 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de position; Localisation par coordination de plusieurs déterminations de distance
G01S 19/00 - Systèmes de positionnement par satellite à radiophares; Détermination de position, de vitesse ou d'attitude au moyen de signaux émis par ces systèmes
A method comprises receiving an approximate location of a rover platform based on satellite signals for a Global Navigation Satellite System (GNSS), and receiving for the GNSS a differential correction map (DCM) representing a non-planar surface of differential corrections that varies across a geographical area represented by the DCM. The differential corrections are based on a reference station constellation of GNSS reference stations having respective locations spanning the geographical area. The method further comprises deriving DCM-based differential corrections for the satellite signals at the approximate location based on the DCM, correcting the satellite signals using the DCM-based differential corrections, and determining a location of the rover platform using the corrected satellite signals.
G01S 19/07 - Systèmes de positionnement par satellite à radiophares émettant des messages horodatés, p.ex. GPS [Système de positionnement global], GLONASS [Système global de navigation par satellite] ou GALILEO Éléments coopérants; Interaction ou communication entre les différents éléments coopérants ou entre les éléments coopérants et les récepteurs fournissant des données pour corriger les données de positionnement mesurées, p.ex. DGPS [GPS différentiel] ou corrections ionosphériques
G01S 5/00 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de position; Localisation par coordination de plusieurs déterminations de distance
G01S 19/00 - Systèmes de positionnement par satellite à radiophares; Détermination de position, de vitesse ou d'attitude au moyen de signaux émis par ces systèmes
A radio transmitter comprises transmitting circuitry and processing circuitry. The transmitting circuitry broadcasts a frequency modulation (FM) in-band on-channel (IBOC) radio signal, wherein the FM IBOC radio signal includes multiple subcarriers grouped into multiple frequency partitions. The processing circuitry is configured to receive input bits for transmitting; encode and puncture the input bits using forward error correction (FEC) encoding; distribute encoded input bits between a main encoded component and a backup encoded component, wherein encoded bits of the backup encoded component are delayed for a specified duration relative to encoded bits of the main encoded component; allocate the encoded input bits of the main and backup encoded components into frequency diverse sidebands of the FM IBOC radio signal; and modulate the encoded input bits for transmitting using the frequency diverse sidebands of the FM IBOC radio signal, wherein the modulation is a type of quadrature amplitude modulation (QAM).
A radio transmitter comprises transmitting circuitry and processing circuitry. The transmitting circuitry broadcasts a frequency modulation (FM) in-band on-channel (IBOC) radio signal, wherein the FM IBOC radio signal includes multiple subcarriers grouped into multiple frequency partitions. The processing circuitry is configured to receive input bits for transmitting; encode and puncture the input bits using forward error correction (FEC) encoding; distribute encoded input bits between a main encoded component and a backup encoded component, wherein encoded bits of the backup encoded component are delayed for a specified duration relative to encoded bits of the main encoded component; allocate the encoded input bits of the main and backup encoded components into frequency diverse sidebands of the FM IBOC radio signal; and modulate the encoded input bits for transmitting using the frequency diverse sidebands of the FM IBOC radio signal, wherein the modulation is a type of quadrature amplitude modulation (QAM).
A radio transmitter comprises transmitting circuitry and processing circuitry. The transmitting circuitry broadcasts a frequency modulation (FM) in-band on-channel (IBOC) radio signal, wherein the FM IBOC radio signal includes multiple subcarriers grouped into multiple frequency partitions. The processing circuitry is configured to receive input bits for transmitting; encode and puncture the input bits using forward error correction (FEC) encoding; distribute encoded input bits between a main encoded component and a backup encoded component, wherein encoded bits of the backup encoded component are delayed for a specified duration relative to encoded bits of the main encoded component; allocate the encoded input bits of the main and backup encoded components into frequency diverse sidebands of the FM IBOC radio signal; and modulate the encoded input bits for transmitting using the frequency diverse sidebands of the FM IBOC radio signal, wherein the modulation is a type of quadrature amplitude modulation (QAM).
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H04L 27/34 - Systèmes à courant porteur à modulation de phase et d'amplitude, p.ex. en quadrature d'amplitude
H03M 13/03 - Détection d'erreurs ou correction d'erreurs transmises par redondance dans la représentation des données, c.à d. mots de code contenant plus de chiffres que les mots source
A system comprises an intermediate communication platform that provides an interface to an Internet network; and a first server including: a port operatively coupled to the intermediate communication platform, processing circuitry, and a service application for execution by the processor. The service application is configured to: receive audio content recognition information from a first radio receiver of multiple radio receivers via the intermediate communication platform, wherein the audio content recognition information identifies audio content received by the first receiver in a radio broadcast; determine audio metadata associated with the received audio content recognition information; and send the audio metadata to the multiple radio receivers via the intermediate communication platform.
G06F 17/30 - Recherche documentaire; Structures de bases de données à cet effet
H04H 60/74 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des méta-informations utilisant des informations relatives aux programmes, p.ex. le titre, le compositeur ou l’interprète
H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole
52.
System and method for in-vehicle live guide generation
A system comprises an intermediate communication platform that provides an interface to an Internet network; and a first server including: a port operatively coupled to the intermediate communication platform, processing circuitry, and a service application for execution by the processor. The service application is configured to: receive audio content recognition information from a first radio receiver of multiple radio receivers via the intermediate communication platform, wherein the audio content recognition information identifies audio content received by the first receiver in a radio broadcast; determine audio metadata associated with the received audio content recognition information; and send the audio metadata to the multiple radio receivers via the intermediate communication platform.
G06F 17/00 - TRAITEMENT ÉLECTRIQUE DE DONNÉES NUMÉRIQUES Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des fonctions spécifiques
H04H 60/70 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des informations géographiques, p.ex. des cartes, des graphiques ou des atlas
H04H 60/73 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des méta-informations
H04H 60/72 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des guides électroniques de programmes
H04H 60/46 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour reconnaître les préférences des utilisateurs
53.
ESTIMATING DIGITAL AUDIO AVAILABILITY IN RADIO BROADCAST
A radio signal processing circuit comprises multiple audio blend channels, an audio decoder, a program selector and a blending circuit. The audio blend channels are configured to receive digital audio packets for multiple supplemental audio programs. Each audio blend channel includes an audio blend buffer and a signal quality metric circuit. The signal quality metric (SQM) circuit configured to determines an audio quality indicator for the digital audio packets of the program and indicates availability of the program according to the audio quality indicator regardless of whether the program is selected for play. The program selector configured to provides digital audio packets from a selected audio blend channel to the audio decoder to produce a digital audio signal. The blending circuit blends the digital audio signal produced for the selected audio blend channel with a signal representing silence according to the audio quality indicator for the audio blend channel.
G10L 19/00 - Techniques d'analyse ou de synthèse de la parole ou des signaux audio pour la réduction de la redondance, p.ex. dans les vocodeurs; Codage ou décodage de la parole ou des signaux audio utilisant les modèles source-filtre ou l’analyse psychoacoustique
H04H 20/88 - Systèmes de radiodiffusion stéréophonique
H04H 20/26 - Dispositions de commutation de systèmes de distribution
54.
Method of estimating digital audio availability for supplemental audio programs in HD radio broadcast
A radio signal processing circuit comprises multiple audio blend channels, an audio decoder, a program selector and a blending circuit. The audio blend channels are configured to receive digital audio packets for multiple supplemental audio programs. Each audio blend channel includes an audio blend buffer and a signal quality metric circuit. The signal quality metric (SQM) circuit configured to determines an audio quality indicator for the digital audio packets of the program and indicates availability of the program according to the audio quality indicator regardless of whether the program is selected for play. The program selector configured to provides digital audio packets from a selected audio blend channel to the audio decoder to produce a digital audio signal. The blending circuit blends the digital audio signal produced for the selected audio blend channel with a signal representing silence according to the audio quality indicator for the audio blend channel.
H04N 21/43 - Traitement de contenu ou données additionnelles, p.ex. démultiplexage de données additionnelles d'un flux vidéo numérique; Opérations élémentaires de client, p.ex. surveillance du réseau domestique ou synchronisation de l'horloge du décodeur; Intergiciel de client
H04N 21/235 - Traitement de données additionnelles, p.ex. brouillage de données additionnelles ou traitement de descripteurs de contenu
H04N 21/435 - Traitement de données additionnelles, p.ex. décryptage de données additionnelles ou reconstruction de logiciel à partir de modules extraits du flux de transport
H04N 21/2368 - Multiplexage de flux audio et vidéo
H04N 21/434 - Désassemblage d'un flux multiplexé, p.ex. démultiplexage de flux audio et vidéo, extraction de données additionnelles d'un flux vidéo; Remultiplexage de flux multiplexés; Extraction ou traitement de SI; Désassemblage d'un flux élémentaire mis en paquets
H04N 21/439 - Traitement de flux audio élémentaires
H04N 21/233 - Traitement de flux audio élémentaires
H04H 20/18 - Dispositions de synchronisation de la radiodiffusion ou de la distribution par l'intermédiaire de plusieurs systèmes
A radio receiver comprises physical layer circuitry and processor circuitry. The physical layer circuitry receives quadrature amplitude modulation (QAM) symbols via a plurality of subcarriers included in a broadcast radio signal. Each received QAM symbol is a complex symbol comprising multiple bits of encoded source information. The processing circuitry demodulates the received data symbols, generates a constellation sample for each received QAM symbol, generates a soft metric for each bit of encoded information of the received QAM symbols using the constellation sample, and multiplies the soft metric by a channel state information (CSI) weight to produce a Log-likelihood Ratio (LLR) approximation for each bit of encoded information of the received QAM symbols.
Service modes specify how digital content is formatted in sidebands of an FM radio channel. In an improved service mode, encoded bits can be distributed between an in-band encoded component and a cross-band encoded component, where the encoded bits in the in-band encoded component are desynchronized by a specified duration with respect to the encoded bits in the cross-band encoded component. The encoded bits in the in-band encoded component can be allocated into frequency partitions that are used by a legacy service mode, such as MP1 or MP3, which can provide backward compatibility with the legacy service mode. The encoded bits in the cross-band encoded component can be allocated into frequency partitions that are not used by the legacy service mode, and are found in the opposite sideband, compared with the legacy service mode, which can provide time diversity within a single sideband.
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H04H 20/48 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la radiodiffusion spécialement adaptés aux systèmes de radiodiffusion couverts par les groupes spécialement adaptés aux systèmes de radiodiffusion stéréophonique aux systèmes de radiodiffusion stéréophonique en modulation de fréquence
Service modes specify how digital content is formatted in sidebands of an FM radio channel. In an improved service mode, encoded bits can be distributed between an in-band encoded component and a cross-band encoded component, where the encoded bits in the in-band encoded component are desynchronized by a specified duration with respect to the encoded bits in the cross-band encoded component. The encoded bits in the in-band encoded component can be allocated into frequency partitions that are used by a legacy service mode, such as MP1 or MP3, which can provide backward compatibility with the legacy service mode. The encoded bits in the cross-band encoded component can be allocated into frequency partitions that are not used by the legacy service mode, and are found in the opposite sideband, compared with the legacy service mode, which can provide time diversity within a single sideband.
H04H 20/31 - Dispositions de radiodiffusion simultanée de plusieurs informations par un canal unique au moyen de signaux intra bande, p.ex. un signal infra sonore ou un signal de repérage
H04H 20/95 - Dispositions caractérisées par des caractéristiques techniques particulières de l'information radiodiffusée, p. ex. par la forme du signal ou par le format des informations caractérisés par un format spécifique, p.ex. MP3 [MPEG-1 Audio Layer 3]
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
Systems and methods to process a digital audio broadcast signal having a plurality of digital audio signals can be implemented in a variety of applications. The digital audio broadcast signal having a main program service and a set of supplemental program services can be received at a digital audio system and processed to provide an audio signal to a set of speakers. The processing can include calculation of audio levels of audio signals of the main program service and the supplemental program services. One of the services can be selected with the audio signal of the selected service adjusted based on the calculated level of the selected service and a reference signal, prior to sending the audio signal to the set of speakers. In various embodiments, the reference signal can be an analog audio signal in the digital audio broadcast signal. Additional apparatus, systems, and methods are disclosed.
An apparatus comprises a digital input port configured to receive digital audio packets of main program service (MPS) audio; a modem operatively coupled to the digital port; an analog input port configured to receive an audio engineer society format (AES) audio signal that is a digitized version of the analog signal component of the frequency modulation (FM) hybrid radio signal; and an alignment unit configured to time-align the AES audio signal with the digital audio packets at the modem; wherein the modem is configured to generate the FM hybrid radio signal using the digital audio packets and the time-aligned AES audio signal.
H04H 20/18 - Dispositions de synchronisation de la radiodiffusion ou de la distribution par l'intermédiaire de plusieurs systèmes
H04H 20/95 - Dispositions caractérisées par des caractéristiques techniques particulières de l'information radiodiffusée, p. ex. par la forme du signal ou par le format des informations caractérisés par un format spécifique, p.ex. MP3 [MPEG-1 Audio Layer 3]
H04H 20/48 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la radiodiffusion spécialement adaptés aux systèmes de radiodiffusion couverts par les groupes spécialement adaptés aux systèmes de radiodiffusion stéréophonique aux systèmes de radiodiffusion stéréophonique en modulation de fréquence
H04H 40/54 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la réception spécialement adaptés aux systèmes de radiodiffusion couverts par les groupes spécialement adaptés à la réception de la radiodiffusion stéréophonique à la réception des systèmes de radiodiffusion stéréophonique en modulation de fréquence par la production de sous-porteuses
An apparatus comprises a digital input port configured to receive digital audio packets of main program service (MPS) audio; a modem operatively coupled to the digital port; an analog input port configured to receive an audio engineer society format (AES) audio signal that is a digitized version of the analog signal component of the frequency modulation (FM) hybrid radio signal; and an alignment unit configured to time-align the AES audio signal with the digital audio packets at the modem; wherein the modem is configured to generate the FM hybrid radio signal using the digital audio packets and the time-aligned AES audio signal.
A radio receiver comprises physical layer circuitry and processor circuitry. The physical layer circuitry receives quadrature amplitude modulation (QAM) symbols via a plurality of subcarriers included in a broadcast radio signal. Each received QAM symbol is a complex symbol comprising multiple bits of encoded source information. The processing circuitry demodulates the received data symbols, generates a constellation sample for each received QAM symbol, generates a soft metric for each bit of encoded information of the received QAM symbols using the constellation sample, and multiplies the soft metric by a channel state information (CSI) weight to produce a Log-likelihood Ratio (LLR) approximation for each bit of encoded information of the received QAM symbols.
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H04L 27/38 - Circuits de démodulation; Circuits récepteurs
H04L 25/06 - Moyens pour rétablir le niveau à courant continu; Correction de distorsion de polarisation
H03M 13/45 - Décodage discret, c.à d. utilisant l'information de fiabilité des symboles
H03M 13/39 - Estimation de séquence, c.à d. utilisant des méthodes statistiques pour la reconstitution des codes originaux
H03M 13/11 - Détection d'erreurs ou correction d'erreurs transmises par redondance dans la représentation des données, c.à d. mots de code contenant plus de chiffres que les mots source utilisant un codage par blocs, c.à d. un nombre prédéterminé de bits de contrôle ajouté à un nombre prédéterminé de bits d'information utilisant plusieurs bits de parité
62.
Systems and methods for detection of signal quality in broadcast signals
Systems, methods, and processor readable media are disclosed for detection of signal quality problems and errors in digital radio broadcast signals. First monitoring equipment is located in an over-the-air coverage area of a first radio station. Second monitoring equipment is located in an over-the-air coverage area of a second radio station. The first and second monitoring equipment are configured to receive digital radio broadcast signals from the respective first and second radio stations. A computing system is configured to receive data from the first monitoring equipment and the second monitoring equipment, the data being indicative of one or more attributes of a digital radio broadcast signal received at respective monitoring equipment. The computing system analyzes received data to detect a signal quality problem or error in the digital radio broadcast signals received at the first and second monitoring equipment.
A method for processing audio signals in a radio transmitter, includes: receiving an analog audio sample stream and a digital audio sample stream; determining offsets in time between the analog audio stream and the digital audio stream using a normalized cross-correlation of audio envelopes of the analog audio sample stream and the digital audio sample stream; filtering the determined offsets in time to produce filtered offset values; determining an alignment slip adjustment value as a function of the filtered offset values; aligning the analog audio sample stream and the digital audio sample stream using the determined alignment slip adjustment value; and generating a hybrid radio signal for broadcast that includes time-aligned analog audio and digital audio.
H04L 12/18 - Dispositions pour la fourniture de services particuliers aux abonnés pour la diffusion ou les conférences
H04H 40/18 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la réception
H04H 40/00 - Dispositions spécialement adaptées à la réception d'informations radiodiffusées
H04H 20/18 - Dispositions de synchronisation de la radiodiffusion ou de la distribution par l'intermédiaire de plusieurs systèmes
H04H 60/00 - Dispositions pour des applications de radiodiffusion en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion; Systèmes relatifs à la radiodiffusion
H04L 7/00 - Dispositions pour synchroniser le récepteur avec l'émetteur
H04H 20/30 - Dispositions de radiodiffusion simultanée de plusieurs informations par un canal unique
H04H 60/12 - Dispositions de contre-mesures lorsqu'une partie des informations radiodiffusées est indisponible où d'autres informations sont substituées à ladite partie indisponible des informations radiodiffusées
A system comprises a first server including a port, a memory, a processor operatively coupled to the port and memory, and a service application for execution by the processor. The service application is configured to: receive identification information related to an over-the-air radio broadcast via the port of the first server, wherein the identification information is transmitted to the first server using a radio broadcast receiver remote from the first server, communicate a request for automatic content recognition (ACR) of an Internet-based streaming version of the over-the-air radio broadcast; and receive metadata associated with the over-the-air radio broadcast in response to the request and initiate transmission of the metadata to the radio broadcast receiver.
H04H 60/74 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des méta-informations utilisant des informations relatives aux programmes, p.ex. le titre, le compositeur ou l’interprète
H04H 60/37 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour identifier des segments des informations radiodiffusées, p.ex. des scènes, ou extraire des identificateurs [ID] de programmes
H04H 60/58 - Dispositions caractérisées par des composants spécialement adaptés à la surveillance, l'identification ou la reconnaissance, couverts par les groupes ou audio
H04H 60/64 - Dispositions pour des services utilisant les résultats du contrôle, de l'identification ou de la reconnaissance, couverts par les groupes ou pour fournir des informations détaillées
H04H 60/82 - Dispositions caractérisées par des systèmes de transmission autres que ceux utilisés pour la radiodiffusion, p.ex. Internet caractérisées par le système de transmission lui-même le système de transmission étant Internet
H04H 60/61 - Dispositions pour des services utilisant les résultats du contrôle, de l'identification ou de la reconnaissance, couverts par les groupes ou
H04H 60/73 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des méta-informations
H04H 60/68 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques
H04H 20/31 - Dispositions de radiodiffusion simultanée de plusieurs informations par un canal unique au moyen de signaux intra bande, p.ex. un signal infra sonore ou un signal de repérage
H04H 20/72 - Systèmes sans fil de réseaux terrestres
A system comprises a first server including a port, a memory, a processor operatively coupled to the port and memory, and a service application for execution by the processor. The service application is configured to: receive identification information related to an over-the-air radio broadcast via the port of the first server, wherein the identification information is transmitted to the first server using a radio broadcast receiver remote from the first server; communicate a request for automatic content recognition (ACR) of an Internet-based streaming version of the over-the-air radio broadcast; and receive metadata associated with the over-the-air radio broadcast in response to the request and initiate transmission of the metadata to the radio broadcast receiver.
G06F 3/00 - Dispositions d'entrée pour le transfert de données destinées à être traitées sous une forme maniable par le calculateur; Dispositions de sortie pour le transfert de données de l'unité de traitement à l'unité de sortie, p.ex. dispositions d'interface
G06F 15/16 - Associations de plusieurs calculateurs numériques comportant chacun au moins une unité arithmétique, une unité programme et un registre, p.ex. pour le traitement simultané de plusieurs programmes
H04N 5/445 - Circuits de réception pour visualisation d'information additionnelle
Systems and methods to process a digital audio broadcast signal having a plurality of digital audio signals can be implemented in a variety of applications. The digital audio broadcast signal having a main program service and a set of supplemental program services can be received at a digital audio system and processed to provide an audio signal to a set of speakers. The processing can include calculation of audio levels of audio signals of the main program service and the supplemental program services. One of the services can be selected with the audio signal of the selected service adjusted based on the calculated level of the selected service and a reference signal, prior to sending the audio signal to the set of speakers. In various embodiments, the reference signal can be an analog audio signal in the digital audio broadcast signal. Additional apparatus, systems, and methods are disclosed.
H03G 3/00 - Commande de gain dans les amplificateurs ou les changeurs de fréquence
H03G 3/30 - Commande automatique dans des amplificateurs comportant des dispositifs semi-conducteurs
H03G 3/34 - Commande automatique dans des amplificateurs comportant des dispositifs semi-conducteurs rendant l'amplificateur muet en l'absence de signal
H04N 5/60 - Circuits de réception pour les signaux du canal son
A housing can be wearable by a user. At least one microphone in or on the housing can sense ambient audio and produce at least one time-domain audio signal. The housing can be passive, such that the sensed ambient audio does not include any sound emitted from the housing. A transformation circuit can transform the at least one time-domain audio signal to form at least one frequency-domain audio signal. An identification circuit can identify a spectral feature in the at least one frequency-domain audio signal. A tracking circuit can track a time evolution of the spectral feature. A determination circuit can determine from the tracked time evolution of the spectral feature that the spectral feature corresponds to an object moving toward the housing. An alert circuit can alert the user, in response to the determination circuit determining that the object is moving toward the housing.
A housing can be wearable by a user. At least one microphone in or on the housing can sense ambient audio and produce at least one time-domain audio signal. The housing can be passive, such that the sensed ambient audio does not include any sound emitted from the housing. A transformation circuit can transform the at least one time-domain audio signal to form at least one frequency-domain audio signal. An identification circuit can identify a spectral feature in the at least one frequency-domain audio signal. A tracking circuit can track a time evolution of the spectral feature. A determination circuit can determine from the tracked time evolution of the spectral feature that the spectral feature corresponds to an object moving toward the housing. An alert circuit can alert the user, in response to the determination circuit determining that the object is moving toward the housing.
G08B 21/02 - Alarmes pour assurer la sécurité des personnes
G01S 3/80 - Radiogoniomètres pour déterminer la direction d'où proviennent des ondes infrasonores, sonores, ultrasonores ou électromagnétiques ou des émissions de particules sans caractéristiques de direction utilisant des ondes ultrasonores, sonores ou infrasonores
G01S 11/14 - Systèmes pour déterminer la distance ou la vitesse sans utiliser la réflexion ou la reradiation utilisant des ondes ultrasonores, sonores ou infrasonores
G01S 3/802 - Systèmes pour déterminer une direction ou une déviation par rapport à une direction prédéterminée
G08B 7/06 - Systèmes de signalisation selon plus d'un des groupes ; Systèmes d'appel de personnes selon plus d'un des groupes utilisant une transmission électrique
G01S 5/18 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de position; Localisation par coordination de plusieurs déterminations de distance utilisant des ondes ultrasonores, sonores ou infrasonores
A housing can be wearable by a user. At least one microphone in or on the housing can sense ambient audio and produce at least one time-domain audio signal. The housing can be passive, such that the sensed ambient audio does not include any sound emitted from the housing. A transformation circuit can transform the at least one time-domain audio signal to form at least one frequency-domain audio signal. An identification circuit can identify a spectral feature in the at least one frequency-domain audio signal. A tracking circuit can track a time evolution of the spectral feature. A determination circuit can determine from the tracked time evolution of the spectral feature that the spectral feature corresponds to an object moving toward the housing. An alert circuit can alert the user, in response to the determination circuit determining that the object is moving toward the housing.
A method of processing a digital radio broadcast signal includes: (a) determining a plurality of current correlation sample values representative of a time delay between samples in an analog audio sample stream and samples in a digital audio sample stream; (b) determining a current inversion status; (c) updating a delay history and an inversion status history; (d) checking the current correlation sample values for consistency with a first confidence threshold; (e) if consistency is found in step (d), determining if each of a first plurality of values in the delay history is consistent within a predetermined range of the current correlation sample values; (f) if consistency is found in step (e), determining if a value in the inversion status history is consistent with the current inversion status; and (g) if the consistency is found in step (f), allowing blending of an output to the digital audio sample stream.
H04H 20/30 - Dispositions de radiodiffusion simultanée de plusieurs informations par un canal unique
H04H 60/12 - Dispositions de contre-mesures lorsqu'une partie des informations radiodiffusées est indisponible où d'autres informations sont substituées à ladite partie indisponible des informations radiodiffusées
G10L 19/008 - Codage ou décodage du signal audio multi-canal utilisant la corrélation inter-canaux pour réduire la redondance, p.ex. stéréo combinée, codage d’intensité ou matriçage
G10L 19/24 - Codecs à débit variable, p.ex. pour générer différentes qualités en utilisant une représentation évolutive comme le codage hiérarchique ou le codage par couches
Tools and techniques are provided for identifying, collecting, and processing music-related content within a radio broadcast environment. In one embodiment, a method is provided for processing music-related broadcast radio data. The method includes receiving a plurality of broadcast radio station signals; identifying each radio station signal as an analog signal or a digitally broadcast signal in response to the identified radio station signals; obtaining a broadcast sample from at least one of the radio stations; identifying at least one music-related information element missing from the broadcast sample; obtaining missing music-related information elements; updating a computer server with the obtained music-related information elements; and generating and communicating a music guide including the updated information to various user devices.
H04H 60/37 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour identifier des segments des informations radiodiffusées, p.ex. des scènes, ou extraire des identificateurs [ID] de programmes
H04H 20/12 - Dispositions de contrôle, de test ou de dépannage
H04H 20/57 - Dispositions spécialement adaptées à des applications spécifiques, p.ex. aux informations sur le trafic ou aux récepteurs mobiles aux récepteurs mobiles
G06F 17/30 - Recherche documentaire; Structures de bases de données à cet effet
Tools and techniques are provided for identifying, collecting, and processing music-related content within a radio broadcast environment. In one embodiment, a method is provided for processing music-related broadcast radio data. The method includes receiving a plurality of broadcast radio station signals; identifying each radio station signal as an analog signal or a digitally broadcast signal in response to the identified radio station signals; obtaining a broadcast sample from at least one of the radio stations; identifying at least one music-related information element missing from the broadcast sample; obtaining missing music-related information elements; updating a computer server with the obtained music-related information elements; and generating and communicating a music guide including the updated information to various user devices.
H04H 60/37 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour identifier des segments des informations radiodiffusées, p.ex. des scènes, ou extraire des identificateurs [ID] de programmes
H04H 20/12 - Dispositions de contrôle, de test ou de dépannage
H04H 20/57 - Dispositions spécialement adaptées à des applications spécifiques, p.ex. aux informations sur le trafic ou aux récepteurs mobiles aux récepteurs mobiles
Tools and techniques are provided for identifying, collecting, and processing music-related content within a radio broadcast environment. In one embodiment, a method is provided for processing music-related broadcast radio data. The method includes receiving a plurality of broadcast radio station signals; identifying each radio station signal as an analog signal or a digitally broadcast signal in response to the identified radio station signals; obtaining a broadcast sample from at least one of the radio stations; identifying at least one music-related information element missing from the broadcast sample; obtaining missing music-related information elements; updating a computer server with the obtained music-related information elements; and generating and communicating a music guide including the updated information to various user devices.
G06F 17/00 - TRAITEMENT ÉLECTRIQUE DE DONNÉES NUMÉRIQUES Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des fonctions spécifiques
H04H 60/37 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour identifier des segments des informations radiodiffusées, p.ex. des scènes, ou extraire des identificateurs [ID] de programmes
H04H 20/12 - Dispositions de contrôle, de test ou de dépannage
H04H 20/57 - Dispositions spécialement adaptées à des applications spécifiques, p.ex. aux informations sur le trafic ou aux récepteurs mobiles aux récepteurs mobiles
G06F 17/30 - Recherche documentaire; Structures de bases de données à cet effet
Systems and methods are disclosed for communicating an emergency alert message from a digital radio broadcast transmission system of a mobile vehicle to a digital radio broadcast receiver system. A digital radio broadcast signal including first and second data is broadcasted using the digital radio broadcast transmission system to end-user digital radio broadcast receivers. The first data includes an emergency code, and the second data includes an emergency alert message. The digital radio broadcast signal is transmitted at a predetermined frequency that is recognized by the receivers as an emergency notification frequency. The digital radio broadcast signal can be decoded only be receivers located within a localized area in a proximity of the transmission system. The receivers are configured to automatically tune to the emergency notification frequency to receive the digital radio broadcast signal and render the second data based on a detection of the emergency code within the signal.
H04M 11/04 - Systèmes de communication téléphonique spécialement adaptés pour être combinés avec d'autres systèmes électriques avec systèmes d’alarme, p.ex. systèmes d’alarme d'incendie, de police ou systèmes antivol
H04W 4/90 - Services pour gérer les situations d’urgence ou dangereuses, p.ex. systèmes d’alerte aux séismes et aux tsunamis
H04H 20/59 - Dispositions spécialement adaptées à des applications spécifiques, p.ex. aux informations sur le trafic ou aux récepteurs mobiles aux situations d'urgence ou de détresse
H04H 20/62 - Dispositions spécialement adaptées à des applications spécifiques, p.ex. aux informations sur le trafic ou aux récepteurs mobiles à la radiodiffusion locale, p.ex. la radiodiffusion en interne aux systèmes de transport, p.ex. dans les véhicules
H04B 1/3822 - TRANSMISSION - Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission Émetteurs-récepteurs, c. à d. dispositifs dans lesquels l'émetteur et le récepteur forment un ensemble structural et dans lesquels au moins une partie est utilisée pour des fonctions d'émission et de réception spécialement adaptés à l'utilisation dans des véhicules
H04W 4/06 - Répartition sélective de services de diffusion, p.ex. service de diffusion/multidiffusion multimédia; Services à des groupes d’utilisateurs; Services d’appel sélectif unidirectionnel
Systems, methods, and processor readable media are disclosed for detection of signal quality problems and errors in digital radio broadcast signals. First monitoring equipment is located in an over-the-air coverage area of a first radio station. Second monitoring equipment is located in an over-the-air coverage area of a second radio station. The first and second monitoring equipment are configured to receive digital radio broadcast signals from the respective first and second radio stations. A computing system is configured to receive data from the first monitoring equipment and the second monitoring equipment, the data being indicative of one or more attributes of a digital radio broadcast signal received at respective monitoring equipment. The computing system analyzes received data to detect a signal quality problem or error in the digital radio broadcast signals received at the first and second monitoring equipment.
A method for processing a digital audio broadcast signal in a radio receiver, includes: receiving a hybrid broadcast signal; demodulating the hybrid broadcast signal to produce an analog audio stream and a digital audio stream; and using a normalized cross-correlation of envelopes of the analog audio stream and the digital audio stream to measure a time offset between the analog audio stream and the digital audio stream. The time offset can be used to align the analog audio stream and the digital audio stream for subsequent blending of an output of the radio receiver from the analog audio stream to the digital audio stream or from the digital audio stream to the analog audio stream.
H04H 20/30 - Dispositions de radiodiffusion simultanée de plusieurs informations par un canal unique
H04H 40/00 - Dispositions spécialement adaptées à la réception d'informations radiodiffusées
H04H 40/18 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la réception
H04H 60/00 - Dispositions pour des applications de radiodiffusion en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion; Systèmes relatifs à la radiodiffusion
H04H 60/12 - Dispositions de contre-mesures lorsqu'une partie des informations radiodiffusées est indisponible où d'autres informations sont substituées à ladite partie indisponible des informations radiodiffusées
H03D 3/00 - Démodulation d'oscillations modulées en angle
H04L 7/00 - Dispositions pour synchroniser le récepteur avec l'émetteur
H04L 12/18 - Dispositions pour la fourniture de services particuliers aux abonnés pour la diffusion ou les conférences
Over-the-air radio broadcast signals are commonly used to deliver a variety of programming content (e.g., audio, etc.) to radio receiver systems. Supplemental data (e.g., metadata) may be provided to radio broadcast receiver systems, where such supplemental data is associated with the programming content delivered via the over-the-air radio broadcast signals. In exemplary embodiments described herein, a radio receiver system receives both (i) primary programming content via over-the-air radio broadcast transmission, and (ii) metadata related to the programming content via wireless Internet. This use of metadata provides a user with an enhanced experience regardless of the type of terrestrial broadcast signal that is received at the user's radio receiver system. Users receiving radio broadcast signals at a receiver system may view images, videos, multimedia displays, text, etc., that is related to the programming content received via the over-the-air radio broadcast signals.
H04H 60/37 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour identifier des segments des informations radiodiffusées, p.ex. des scènes, ou extraire des identificateurs [ID] de programmes
H04H 60/13 - Dispositions de commande de dispositifs, affectés par les informations radiodiffusées
H04H 20/12 - Dispositions de contrôle, de test ou de dépannage
H04H 60/74 - Systèmes spécialement adaptés à l'utilisation d'informations spécifiques, p.ex. d'informations géographiques ou météorologiques utilisant des méta-informations utilisant des informations relatives aux programmes, p.ex. le titre, le compositeur ou l’interprète
H04H 60/88 - Dispositions caractérisées par des systèmes de transmission autres que ceux utilisés pour la radiodiffusion, p.ex. Internet caractérisées par le système de transmission lui-même le système de transmission étant Internet l’accès se faisant au moyen de réseaux informatiques qui sont des réseaux sans fil
Over-the-air radio broadcast signals are commonly used to deliver a variety of programming content (e.g., audio, etc.) to radio receiver systems. Supplemental data (e.g., metadata) may be provided to radio broadcast receiver systems, where such supplemental data is associated with the programming content delivered via the over-the-air radio broadcast signals. In exemplary embodiments described herein, a radio receiver system receives both (i) primary programming content via over-the-air radio broadcast transmission, and (ii) metadata related to the programming content via wireless Internet. This use of metadata provides a user with an enhanced experience regardless of the type of terrestrial broadcast signal that is received at the user's radio receiver system. Users receiving radio broadcast signals at a receiver system may view images, videos, multimedia displays, text, etc., that is related to the programming content received via the over-the-air radio broadcast signals.
G06F 15/16 - Associations de plusieurs calculateurs numériques comportant chacun au moins une unité arithmétique, une unité programme et un registre, p.ex. pour le traitement simultané de plusieurs programmes
H04H 20/00 - Dispositions de radiodiffusion ou de distribution couplées à la radiodiffusion
H04H 40/90 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la réception spécialement adaptés aux systèmes de radiodiffusion couverts par les groupes spécialement adaptés à la réception de la radiodiffusion par satellite
Over-the-air radio broadcast signals are commonly used to deliver a variety of programming content (e.g., audio, etc.) to radio receiver systems. Supplemental data (e.g., metadata) may be provided to radio broadcast receiver systems, where such supplemental data is associated with the programming content delivered via the over-the-air radio broadcast signals. In exemplary embodiments described herein, a radio receiver system receives both (i) primary programming content via over-the-air radio broadcast transmission, and (ii) metadata related to the programming content via wireless Internet. This use of metadata provides a user with an enhanced experience regardless of the type of terrestrial broadcast signal that is received at the user's radio receiver system. Users receiving radio broadcast signals at a receiver system may view images, videos, multimedia displays, text, etc., that is related to the programming content received via the over-the-air radio broadcast signals.
G06F 15/16 - Associations de plusieurs calculateurs numériques comportant chacun au moins une unité arithmétique, une unité programme et un registre, p.ex. pour le traitement simultané de plusieurs programmes
H04H 20/00 - Dispositions de radiodiffusion ou de distribution couplées à la radiodiffusion
H04H 40/90 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la réception spécialement adaptés aux systèmes de radiodiffusion couverts par les groupes spécialement adaptés à la réception de la radiodiffusion par satellite
A method for processing a digital audio broadcast signal in a radio receiver, includes: receiving a hybrid broadcast signal; demodulating the hybrid broadcast signal to produce an analog audio stream and a digital audio stream; and using a normalized cross-correlation of envelopes of the analog audio stream and the digital audio stream to measure a time offset between the analog audio stream and the digital audio stream. The time offset can be used to align the analog audio stream and the digital audio stream for subsequent blending of an output of the radio receiver from the analog audio stream to the digital audio stream or from the digital audio stream to the analog audio stream.
H04H 60/12 - Dispositions de contre-mesures lorsqu'une partie des informations radiodiffusées est indisponible où d'autres informations sont substituées à ladite partie indisponible des informations radiodiffusées
H04H 20/30 - Dispositions de radiodiffusion simultanée de plusieurs informations par un canal unique
81.
Time-alignment measurement for hybrid HD radio™ technology
A method for processing a digital audio broadcast signal in a radio receiver, includes: receiving a hybrid broadcast signal; demodulating the hybrid broadcast signal to produce an analog audio stream and a digital audio stream; and using a normalized cross-correlation of envelopes of the analog audio stream and the digital audio stream to measure a time offset between the analog audio stream and the digital audio stream. The time offset can be used to align the analog audio stream and the digital audio stream for subsequent blending of an output of the radio receiver from the analog audio stream to the digital audio stream or from the digital audio stream to the analog audio stream.
A method for processing a digital audio broadcast signal in a radio receiver, includes: receiving a hybrid broadcast signal; demodulating the hybrid broadcast signal to produce an analog audio stream and a digital audio stream; and using a normalized cross-correlation of envelopes of the analog audio stream and the digital audio stream to measure a time offset between the analog audio stream and the digital audio stream. The time offset can be used to align the analog audio stream and the digital audio stream for subsequent blending of an output of the radio receiver from the analog audio stream to the digital audio stream or from the digital audio stream to the analog audio stream.
H04H 60/12 - Dispositions de contre-mesures lorsqu'une partie des informations radiodiffusées est indisponible où d'autres informations sont substituées à ladite partie indisponible des informations radiodiffusées
H04H 20/30 - Dispositions de radiodiffusion simultanée de plusieurs informations par un canal unique
83.
METHOD AND APPARATUS FOR BLENDING AN AUDIO SIGNAL IN AN IN-BAND ON-CHANNEL RADIO SYSTEM
A method for processing a digital audio broadcast signal in a radio receiver includes: receiving a digital audio broadcast signal; demodulating the digital audio broadcast signal to produce an analog audio stream and a digital audio stream; determining a digital signal quality value for the digital audio stream; blending an output of the radio receiver from the analog audio stream to the digital audio stream when the digital signal quality value exceeds an adaptive analog-to-digital threshold value; and blending the output of the radio receiver from the digital audio stream to the analog audio stream when the digital signal quality value falls below an adaptive digital-to-analog threshold value, wherein the adaptive digital-to-analog threshold value is lower than the adaptive analog-to-digital threshold value.
H04H 20/30 - Dispositions de radiodiffusion simultanée de plusieurs informations par un canal unique
H04H 60/11 - Dispositions de contre-mesures lorsqu'une partie des informations radiodiffusées est indisponible
H04H 60/12 - Dispositions de contre-mesures lorsqu'une partie des informations radiodiffusées est indisponible où d'autres informations sont substituées à ladite partie indisponible des informations radiodiffusées
84.
METHOD AND APPARATUS FOR BLENDING AN AUDIO SIGNAL IN AN IN-BAND ON-CHANNEL RADIO SYSTEM
A method for processing a digital audio broadcast signal in a radio receiver includes: receiving a digital audio broadcast signal; demodulating the digital audio broadcast signal to produce an analog audio stream and a digital audio stream; determining a digital signal quality value for the digital audio stream; blending an output of the radio receiver from the analog audio stream to the digital audio stream when the digital signal quality value exceeds an adaptive analog-to-digital threshold value; and blending the output of the radio receiver from the digital audio stream to the analog audio stream when the digital signal quality value falls below an adaptive digital-to-analog threshold value, wherein the adaptive digital-to-analog threshold value is lower than the adaptive analog-to-digital threshold value.
H04H 20/30 - Dispositions de radiodiffusion simultanée de plusieurs informations par un canal unique
H04H 60/11 - Dispositions de contre-mesures lorsqu'une partie des informations radiodiffusées est indisponible
H04H 60/12 - Dispositions de contre-mesures lorsqu'une partie des informations radiodiffusées est indisponible où d'autres informations sont substituées à ladite partie indisponible des informations radiodiffusées
85.
Method and apparatus for blending an audio signal in an in-band on-channel radio system
A method for processing a digital audio broadcast signal in a radio receiver includes: receiving a digital audio broadcast signal; demodulating the digital audio broadcast signal to produce an analog audio stream and a digital audio stream; determining a digital signal quality value for the digital audio stream; blending an output of the radio receiver from the analog audio stream to the digital audio stream when the digital signal quality value exceeds an adaptive analog-to-digital threshold value; and blending the output of the radio receiver from the digital audio stream to the analog audio stream when the digital signal quality value falls below an adaptive digital-to-analog threshold value, wherein the adaptive digital-to-analog threshold value is lower than the adaptive analog-to-digital threshold value.
G06F 11/10 - Détection ou correction d'erreur par introduction de redondance dans la représentation des données, p.ex. en utilisant des codes de contrôle en ajoutant des chiffres binaires ou des symboles particuliers aux données exprimées suivant un code, p.ex. contrôle de parité, exclusion des 9 ou des 11
H04B 7/08 - Systèmes de diversité; Systèmes à plusieurs antennes, c. à d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station de réception
H04B 1/10 - Dispositifs associés au récepteur pour limiter ou supprimer le bruit et les interférences
H04H 20/22 - Dispositions de radiodiffusion d'informations identiques par l'intermédiaire de plusieurs systèmes de radiodiffusion
H04H 40/18 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la réception
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H04L 7/00 - Dispositions pour synchroniser le récepteur avec l'émetteur
86.
METHOD AND APPARATUS FOR LEVEL CONTROL IN BLENDING AN AUDIO SIGNAL IN AN IN-BAND ON-CHANNEL RADIO SYSTEM
A method for processing a digital audio broadcast signal includes: separating an analog audio portion and a digital audio portion of the digital audio broadcast signal; determining the loudness of the analog audio portion and the digital audio portion over a first short time interval; using the loudness of the analog and digital audio portions to calculate a short term average gain; determining a long term average gain; converting one of the long term average gain or the short term average gain to dB; if an output has been blended to digital, adjusting a digital gain parameter by a preselected increment to produce a digital gain parameter; if an output has not been blended to digital, setting the digital gain parameter to the short term average gain; providing the digital gain parameter to an audio processor; and repeating the above steps using a second short time interval.
H04H 20/22 - Dispositions de radiodiffusion d'informations identiques par l'intermédiaire de plusieurs systèmes de radiodiffusion
H04H 20/26 - Dispositions de commutation de systèmes de distribution
H04H 60/12 - Dispositions de contre-mesures lorsqu'une partie des informations radiodiffusées est indisponible où d'autres informations sont substituées à ladite partie indisponible des informations radiodiffusées
87.
Method and apparatus for level control in blending an audio signal in an in-band on-channel radio system
A method for processing a digital audio broadcast signal includes: separating an analog audio portion and a digital audio portion of the digital audio broadcast signal; determining the loudness of the analog audio portion and the digital audio portion over a first short time interval; using the loudness of the analog and digital audio portions to calculate a short term average gain; determining a long term average gain; converting one of the long term average gain or the short term average gain to dB; if an output has been blended to digital, adjusting a digital gain parameter by a preselected increment to produce a digital gain parameter; if an output has not been blended to digital, setting the digital gain parameter to the short term average gain; providing the digital gain parameter to an audio processor; and repeating the above steps using a second short time interval.
H04H 20/47 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la radiodiffusion spécialement adaptés aux systèmes de radiodiffusion couverts par les groupes spécialement adaptés aux systèmes de radiodiffusion stéréophonique
H04H 40/36 - Dispositions caractérisées par des circuits ou composants spécialement adaptés à la réception spécialement adaptés aux systèmes de radiodiffusion couverts par les groupes spécialement adaptés à la réception de la radiodiffusion stéréophonique
H03G 3/30 - Commande automatique dans des amplificateurs comportant des dispositifs semi-conducteurs
A method for processing a digital audio broadcast signal includes: separating an analog audio portion and a digital audio portion of the digital audio broadcast signal; determining the loudness of the analog audio portion and the digital audio portion over a first short time interval; using the loudness of the analog and digital audio portions to calculate a short term average gain; determining a long term average gain; converting one of the long term average gain or the short term average gain to dB; if an output has been blended to digital, adjusting a digital gain parameter by a preselected increment to produce a digital gain parameter; if an output has not been blended to digital, setting the digital gain parameter to the short term average gain; providing the digital gain parameter to an audio processor; and repeating the above steps using a second short time interval.
H04H 20/22 - Dispositions de radiodiffusion d'informations identiques par l'intermédiaire de plusieurs systèmes de radiodiffusion
H04H 60/12 - Dispositions de contre-mesures lorsqu'une partie des informations radiodiffusées est indisponible où d'autres informations sont substituées à ladite partie indisponible des informations radiodiffusées
H04H 20/26 - Dispositions de commutation de systèmes de distribution
89.
Method and apparatus for automatic audio alignment in a hybrid radio system
A method of processing a digital radio broadcast signal includes: (a) determining a plurality of current correlation sample values representative of a time delay between samples in an analog audio sample stream and samples in a digital audio sample stream; (b) determining a current inversion status; (c) updating a delay history and an inversion status history; (d) checking the current correlation sample values for consistency with a first confidence threshold; (e) if consistency is found in step (d), determining if each of a first plurality of values in the delay history is consistent within a predetermined range of the current correlation sample values; (f) if consistency is found in step (e), determining if a value in the inversion status history is consistent with the current inversion status; and (g) if the consistency is found in step (f), allowing blending of an output to the digital audio sample stream.
G10L 19/008 - Codage ou décodage du signal audio multi-canal utilisant la corrélation inter-canaux pour réduire la redondance, p.ex. stéréo combinée, codage d’intensité ou matriçage
G10L 19/24 - Codecs à débit variable, p.ex. pour générer différentes qualités en utilisant une représentation évolutive comme le codage hiérarchique ou le codage par couches
90.
METHOD AND APPARATUS FOR AUTOMATIC AUDIO ALIGNMENT IN A HYBRID RADIO SYSTEM
A method of processing a digital radio broadcast signal includes: (a) determining a plurality of current correlation sample values representative of a time delay between samples in an analog audio sample stream and samples in a digital audio sample stream; (b) determining a current inversion status; (c) updating a delay history and an inversion status history; (d) checking the current correlation sample values for consistency with a first confidence threshold; (e) if consistency is found in step (d), determining if each of a first plurality of values in the delay history is consistent within a predetermined range of the current correlation sample values; (f) if consistency is found in step (e), determining if a value in the inversion status history is consistent with the current inversion status; and (g) if the consistency is found in step (f), allowing blending of an output to the digital audio sample stream.
H04H 20/30 - Dispositions de radiodiffusion simultanée de plusieurs informations par un canal unique
H04H 60/12 - Dispositions de contre-mesures lorsqu'une partie des informations radiodiffusées est indisponible où d'autres informations sont substituées à ladite partie indisponible des informations radiodiffusées
91.
METHOD AND APPARATUS FOR AUTOMATIC AUDIO ALIGNMENT IN A HYBRID RADIO SYSTEM
A method of processing a digital radio broadcast signal includes: (a) determining a plurality of current correlation sample values representative of a time delay between samples in an analog audio sample stream and samples in a digital audio sample stream; (b) determining a current inversion status; (c) updating a delay history and an inversion status history; (d) checking the current correlation sample values for consistency with a first confidence threshold; (e) if consistency is found in step (d), determining if each of a first plurality of values in the delay history is consistent within a predetermined range of the current correlation sample values; (f) if consistency is found in step (e), determining if a value in the inversion status history is consistent with the current inversion status; and (g) if the consistency is found in step (f), allowing blending of an output to the digital audio sample stream.
H04H 20/30 - Dispositions de radiodiffusion simultanée de plusieurs informations par un canal unique
H04H 60/12 - Dispositions de contre-mesures lorsqu'une partie des informations radiodiffusées est indisponible où d'autres informations sont substituées à ladite partie indisponible des informations radiodiffusées
92.
METHOD AND APPARATUS FOR TIME ALIGNMENT OF ANALOG AND DIGITAL PATHWAYS IN A DIGITAL RADIO RECEIVER
A method for processing a radio signal includes producing first and second streams of audio samples; decimating the first and second streams of audio samples to produce first and second streams of decimated streams of audio samples; estimating a first offset value between corresponding samples in the first and second streams of decimated streams of audio samples; shifting one of the first and second streams of audio samples by a first shift value; decimating the first and second streams of audio samples to produce third and fourth streams of decimated audio samples; estimating a second offset value; determining a final offset value based on an intersection of ranges of valid results of the first and second offset values; and shifting one of the first and second streams of audio samples by the final offset value to align the first and second streams of audio samples.
H04H 20/22 - Dispositions de radiodiffusion d'informations identiques par l'intermédiaire de plusieurs systèmes de radiodiffusion
H04H 60/58 - Dispositions caractérisées par des composants spécialement adaptés à la surveillance, l'identification ou la reconnaissance, couverts par les groupes ou audio
93.
METHOD AND APPARATUS FOR TIME ALIGNMENT OF ANALOG AND DIGITAL PATHWAYS IN A DIGITAL RADIO RECEIVER
A method for processing a radio signal includes producing first and second streams of audio samples; decimating the first and second streams of audio samples to produce first and second streams of decimated streams of audio samples; estimating a first offset value between corresponding samples in the first and second streams of decimated streams of audio samples; shifting one of the first and second streams of audio samples by a first shift value; decimating the first and second streams of audio samples to produce third and fourth streams of decimated audio samples; estimating a second offset value; determining a final offset value based on an intersection of ranges of valid results of the first and second offset values; and shifting one of the first and second streams of audio samples by the final offset value to align the first and second streams of audio samples.
H04H 20/22 - Dispositions de radiodiffusion d'informations identiques par l'intermédiaire de plusieurs systèmes de radiodiffusion
H04H 60/58 - Dispositions caractérisées par des composants spécialement adaptés à la surveillance, l'identification ou la reconnaissance, couverts par les groupes ou audio
94.
Method and apparatus for time alignment of analog and digital pathways in a digital radio receiver
A method for processing a radio signal includes producing first and second streams of audio samples; decimating the first and second streams of audio samples to produce first and second streams of decimated streams of audio samples; estimating a first offset value between corresponding samples in the first and second streams of decimated streams of audio samples; shifting one of the first and second streams of audio samples by a first shift value; decimating the first and second streams of audio samples to produce third and fourth streams of decimated audio samples; estimating a second offset value; determining a final offset value based on an intersection of ranges of valid results of the first and second offset values; and shifting one of the first and second streams of audio samples by the final offset value to align the first and second streams of audio samples.
H04H 20/22 - Dispositions de radiodiffusion d'informations identiques par l'intermédiaire de plusieurs systèmes de radiodiffusion
H04H 60/58 - Dispositions caractérisées par des composants spécialement adaptés à la surveillance, l'identification ou la reconnaissance, couverts par les groupes ou audio
95.
SYSTEM AND METHOD FOR SYNCHRONOUS PROCESSING OF ANALOG AND DIGITAL PATHWAYS IN A DIGITAL RADIO RECEIVER
A method of processing a digital radio broadcast signal in a digital radio receiver includes: receiving baseband signal samples at a first sample rate; adjusting the sample rate of the baseband signals based on a difference between a receiver clock and a transmitter clock to produce adjusted baseband signal samples at a second sample rate; filtering the adjusted baseband signal samples to separate a digital component of the samples and an analog component of the samples, wherein the digital component and the analog component are synchronous; and separately demodulating the digital component and the analog component to produce a digital output signal and an analog output signal. A receiver that uses the method is also provided.
A method of processing a digital radio broadcast signal in a digital radio receiver includes: receiving baseband signal samples at a first sample rate; adjusting the sample rate of the baseband signals based on a difference between a receiver clock and a transmitter clock to produce adjusted baseband signal samples at a second sample rate; filtering the adjusted baseband signal samples to separate a digital component of the samples and an analog component of the samples, wherein the digital component and the analog component are synchronous; and separately demodulating the digital component and the analog component to produce a digital output signal and an analog output signal. A receiver that uses the method is also provided.
A method of processing a digital radio broadcast signal in a digital radio receiver includes: receiving baseband signal samples at a first sample rate; adjusting the sample rate of the baseband signals based on a difference between a receiver clock and a transmitter clock to produce adjusted baseband signal samples at a second sample rate; filtering the adjusted baseband signal samples to separate a digital component of the samples and an analog component of the samples, wherein the digital component and the analog component are synchronous; and separately demodulating the digital component and the analog component to produce a digital output signal and an analog output signal. A receiver that uses the method is also provided.
Systems, methods, and processor readable media are disclosed for detection of signal quality problems and errors in digital radio broadcast signals. First monitoring equipment is located in an over-the-air coverage area of a first radio station. Second monitoring equipment is located in an over-the-air coverage area of a second radio station. The first and second monitoring equipment are configured to receive digital radio broadcast signals from the respective first and second radio stations. A computing system is configured to receive data from the first monitoring equipment and the second monitoring equipment, the data being indicative of one or more attributes of a digital radio broadcast signal received at respective monitoring equipment. The computing system analyzes received data to detect a signal quality problem or error in the digital radio broadcast signals received at the first and second monitoring equipment.
H04H 20/12 - Dispositions de contrôle, de test ou de dépannage
H04H 60/29 - Dispositions de surveillance des services de radiodiffusion ou des services relatifs à la radiodiffusion
H04H 60/54 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour identifier les sites où les informations radiodiffusées sont produites
99.
Systems and methods for detection of signal quality in digital radio broadcast signals
Systems, methods, and processor readable media are disclosed for detection of signal quality problems and errors in digital radio broadcast signals. First monitoring equipment is located in an over-the-air coverage area of a first radio station. Second monitoring equipment is located in an over-the-air coverage area of a second radio station. The first and second monitoring equipment are configured to receive digital radio broadcast signals from the respective first and second radio stations. A computing system is configured to receive data from the first monitoring equipment and the second monitoring equipment, the data being indicative of one or more attributes of a digital radio broadcast signal received at respective monitoring equipment. The computing system analyzes received data to detect a signal quality problem or error in the digital radio broadcast signals received at the first and second monitoring equipment.
Systems, methods, and processor readable media are disclosed for detection of signal quality problems and errors in digital radio broadcast signals. First monitoring equipment is located in an over-the-air coverage area of a first radio station. Second monitoring equipment is located in an over-the-air coverage area of a second radio station. The first and second monitoring equipment are configured to receive digital radio broadcast signals from the respective first and second radio stations. A computing system is configured to receive data from the first monitoring equipment and the second monitoring equipment, the data being indicative of one or more attributes of a digital radio broadcast signal received at respective monitoring equipment. The computing system analyzes received data to detect a signal quality problem or error in the digital radio broadcast signals received at the first and second monitoring equipment.
H04H 20/12 - Dispositions de contrôle, de test ou de dépannage
H04H 60/29 - Dispositions de surveillance des services de radiodiffusion ou des services relatifs à la radiodiffusion
H04H 60/54 - Dispositions d'identification ou de reconnaissance de caractéristiques en liaison directe avec les informations radiodiffusées ou le créneau spatio-temporel de radiodiffusion, p.ex. pour identifier les stations de radiodiffusion ou pour identifier le pour identifier les sites où les informations radiodiffusées sont produites
