A method for automatically controlling loudness of an audio signal to be replayed within a vehicle is provided. The method comprises an automatic loudness measurer measuring a loudness of an incoming audio signal that comprises a sequence of digital audio blocks. Furthermore, a noise level indication signal is received which indicates a noise level within the vehicle and a processor calculates a gain factor based on the measured loudness of the incoming audio signal and the noise level indication signal. If the measured loudness is equal to or above a predefined first target loudness (TLamS), the gain factor is zero. Otherwise, if the noise level indication signal indicates a noise level equal to or above a predefined intermediate noise level, the gain factor is a difference between the measured loudness and a current target loudness, limited to a maximum gain, wherein the maximum gain is a defined absolute maximum gain, and the current target loudness is linearly interpolated, according to the noise level indication signal, between a predefined second target loudness (TLaiS) for the noise level being equal to said intermediate noise level and the predefined first target loudness (TLamS) for the noise level being equal to a predefined maximum noise level. Otherwise, if the noise level indication signal indicates a noise level below the intermediate noise level, the gain is linearly interpolated, according to the noise level, between the gain as defined for the intermediate noise level and zero. Furthermore, the gain factor is applied to the audio signal to be replayed.
A device for processing multi-channel audio signals that include at least a left channel, a right channel, and a center channel, is provided. The device comprises a center extraction unit adapted for extracting a center signal from the left channel and the right channel, wherein a left remainder signal and a right remainder signal remain; a first summation unit for adding the extracted center signal to the center channel of the multi-channel audio signal to obtain an enhanced center channel; a second summation unit adapted for adding the enhanced center channel to the right remainder signal to obtain an enhanced right channel; a third summation unit adapted for adding the enhanced center channel to the left remainder signal to obtain an enhanced left channel; and outputs for providing the enhanced left channel, the enhanced right channel, and enhanced center channel.
MTMT) as a second measurement value (D2). The base station also transmits the first measurement value (D1) to the mobile device (st6). From the first and second measurement values, the mobile device determines the signal transit time and the deviation of its time base and corrects them (st7, st8).
15,11 15,35,21,1121,3721,37) are arranged on a support (T, T') such that the microphone capsules lie on three identical branches, each of which is rotated relative to the other branches by 120°, in such a manner that the same number of microphone capsules lies on each branch. In a flat isometric coordinate system with three axes (L0, L1, L2), each of which is rotated relative to the other axes by 120° and which form an L2 grid of equilateral triangles, each of the microphone capsules lies on a corner of a triangle of the L2 grid.
H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
To secure earphones in the auditory canal of a user, ear tips are used. In an improved earphone (200), which reduces or avoids pressure sores occurring in the ear of the user, a hard stub of the housing no longer protrudes as hitherto into the ear tip, and instead a soft receiving tube (220) of the ear tip is secured in the housing (250). By means of this inverse receiving principle, the ear tip can better conform to the auditory canal and thus enhances the wearing comfort. For assembly, the tube (220) is plugged into an opening (245) in the housing so that a projection (225) of the tube engages in a depression or inner shoulder (245a) behind the opening and thus secures the ear cushion on the housing.
A charging device (100) for charging portable rechargeable electronic devices (200) is provided. The charging device comprising a rechargeable battery (120) and a charging control circuitry for controlling a charging of at least one portable rechargeable device. The charging control circuitry comprises interface circuitry (110) adapted for electrically connecting the portable rechargeable device (200) to the rechargeable battery (120), so as to charge the portable rechargeable device from power of the rechargeable battery; gauging circuitry (150) adapted for automatically detecting a battery charging level of the connected portable rechargeable device, comparing the detected battery charging level to a threshold value and detecting if the threshold value has been reached; and a processor configured for serving as a control unit (140) connected at least to the interface circuitry (110) and the gauging circuitry (150). The control unit comprises a timer (145). The charging control circuitry is adapted for repetitively performing a charging phase by transferring energy from the rechargeable battery (120) to the portable rechargeable device (200) via the interface circuitry (110) until the gauging circuitry (150) indicates that the threshold value has been reached, entering a pause phase wherein the charging of the portable rechargeable device from the rechargeable battery is suspended, and starting the timer; and when the timer (145) has elapsed, returning to a charging phase.
Microphone capsules for capacitive or electret microphones often have individual deviations from a desired ideal electro-acoustic response, e.g. the frequency response and the phase response. In particular when multiple microphone capsules are connected together to form a microphone array, suitable microphone capsules have to be found in a selection process. Some of these deviations can be corrected electronically, e.g. by filtering with an appropriately individually adjusted filter. The invention relates to an improved microphone capsule (200), by means of which automatic selection and automatic population of circuit boards with microphone capsules is made easier, and which contains an electrostatic acoustic converter (CT), an amplifier element (Q1) that outputs an amplified output signal (AS, DS) from the electrostatic acoustic converter (CT), and at least one electronic storage element (U1). In the latter, data obtained by a measurement, which relates to the individual frequency response or the phase response of the respective microphone capsule, can be stored. The data can be read during manufacture and during operation, which means that both automatic sorting of the capsules during production and automatic calibration of the target circuit during operation are possible.
H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
9.
METHOD AND SYSTEM FOR A COORDINATED USE OF MOBILE RADIO FREQUENCIES
The invention relates to a method and a system by means of which a primary user, in particular a mobile radio operator, can provide a part of the radio spectrum range, which is exclusively reserved for the mobile radio operator, in a localized and/or time-restricted manner to a local end user who has requested the limited usage authorization of the radio spectrum range from the mobile radio operator using registered credentials. The mobile radio operator can allow the local end user limited usage of the radio spectrum range in a billed manner using the credentials. The local user can then use the assigned frequency band according to the user's own needs. In particular, the user can transmit wireless signals between end devices in the assigned frequency range, said end devices not being assigned any credentials, in the process using a transmission protocol which is not defined for the mobile radio network.
For specific applications, such as e.g. in a sports stadium, a microphone array having particularly high directivity in the vertical direction and a high, but broadly adjustable, directivity in the horizontal direction is provided. The microphone array (100) has a plurality of microphones (110), the output signals of which are combined to produce at least one joint output signal (360). The microphones are directional microphones having a preferred direction of high sensitivity (115) and arranged substantially in one plane on a circle (120) or circle segment, so that each microphone has a different preferred direction of high sensitivity. In this case, the preferred direction of high sensitivity (115) for each of the microphones lies substantially orthogonally in relation to the circle or circle segment. A joint output signal (360) of the microphone array is obtained by beamforming (310,..., 350). The microphone array (100) has an adjustable preferred direction of high sensitivity, wherein the joint output signal (360) contains the sound picked up from this adjustable direction.
H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
Microphone arrays with an automatic beam focusing function can detect sound sources within a search region in an autonomous manner, capture the sound of the sound sources, and output same, for example for conference telephones. Said microphone arrays can easily focus on disruptive sound sources and capture disruptive noises. In order to prevent this from happening, a user plays back a defined control audio signal from the direction (137) of a disruptive sound source (130) via a portable electronic device (110), such as a smartphone with a special app. The microphone array (100) detects the defined control audio signal and the direction (137) of the reception of said audio signal and in response thereto configures itself automatically in accordance with the control audio signal and the reception direction. For example, the reception direction can be damped or eliminated from the search region of the microphone array, or a previously configured damping or elimination of a direction can be canceled. Advantageously, the configuration is simple to carry out and does not require a defined orientation of the microphone array in the room. The elimination of parts of the search region can reduce error rates and improve the audio quality.
H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
The invention relates to a method for recording and synchronizing audio and video signals. The audio signal and the video signal are stored together with time stamps from a respective associated system clock. The invention relates to an adaption of the duration of the recorded audio sequence to the duration of an associated video sequence in order to level out differences in the synchronization of the two system clocks. The two system clocks are also aligned based on a data transmission which has variable waiting times for accessing a transmission channel. The invention thus allows for a clock synchronization by means such as are for example available on a smartphone.
122) of this kind. The distance (L) between the first and the second bearing point is greater than the diameter (d) of the plug contacts (230, 240) of the coaxial plug in this case.
The invention relates to a method for wireless audio transmission between a wireless transmitter (10) and a wireless receiver (50) in a program making special event (PMSE) system. An audio signal is transmitted from the at least one wireless transmitter (10) to the wireless receiver (50) via a first wireless transmission path (80). The at least one wireless transmitter (10) is coupled to a smart device (20) via a second wireless transmission path (30) in order to exchange parameters and/or data. In addition, an exchange of parameters and/or data occurs between the smart device (20) and the wireless receiver unit via a network, in particular the internet.
There are numerous applications for streaming audio data to a plurality of receivers at the same time, in which case playback is typically effected using headphones or earphones. A streaming system according to the invention provides a user with the possibility of individually correcting or adjusting the audio data, in particular improving speech intelligibility. This allows particular personal preferences or individual slight hearing damage to be taken into account. An apparatus for processing audio signals with an adjustable improvement in speech intelligibility contains a filter bank (31) for splitting an input signal into at least three signal components of different frequencies, at least three individually adjustable audio compressors (33L, 33M, 33H) which each process one of the signal components from the filter bank, a summation unit (35) for summing the output signals from the audio compressors, and a user interface for inputting at least two independent parameters: one parameter controls the overall volume and the second parameter adjusts an improvement in speech intelligibility by virtue of an increase in the second parameter in the compressor for high frequencies particularly increasing the gain for audio signals with a low volume level. Normal WLAN networks and smartphones can be used.
Multimedia devices today, and smartphones, tablets, etc., often have both a telephone function and an audio recording and/or audio reproduction function. An improved set of earphones that has stereophonic microphones and that is better suited to connection to such a multimedia device contains two ear units (271, 272), intended to be worn in or on the ear, each containing at least one sound generator (271S, 272S) and a microphone (271M, 272M) for the binaural recording of ambient sound, a microphone unit (25) containing at least one further microphone, an operator control unit (24) connected to the two ear units and the microphone unit by cable, and, as an interface, a connection unit suited to connecting the earpiece to the multimedia device. To allow easy handling, the set of earphones has at least two different function modes (11, 12) between which it is possible to change either automatically or manually.
The Higher Order Ambisonics (HOA) format is usually used for approximated sound field descriptions. It cannot, however, be directly reproduced. The invention relates to a method (100) for processing a digital audio signal, which is present as a 3D sound field description in HOA format of the order N, into a binaural reproduction format containing: filtering of the rotated 3D sound field description with rendering filters (21 L, 21 R) according to head-related impulse responses (HRIR) for a left channel and a right channel, a summation (25L, 25R) of the output signals from the rendering filters into intermediate signals (ZLi, ZR) for the left channel and the right channel, and a correction of the intermediate signals with an equalisation filter (30L, 30R) in each case to modify the timbre, wherein the equalisation filters are automatically adjusted in accordance with the order N. This generates the left and right output signals (40L, 40R) for binaural reproduction, through headphones (50), for instance. An optional upstream step comprises a rotation (10) of the 3D sound field description in accordance with a rotation control signal (16).
The invention relates to a planar dynamic sound transducer comprising a magnet arrangement, which consists of bar magnets and a mounting frame for example, and a diaphragm arrangement. The diaphragm arrangement includes a tensioned diaphragm film (diaphragm for short), a tensioning device for the diaphragm and a conductor structure applied to the diaphragm. When the conductor structure is conventionally provided with electrical connections, mechanically sensitive connections and/or high transition resistances often occur. An improved diaphragm arrangement for a planar dynamic sound transducer comprises a support frame (130), which has at least one contacting surface (200), and a diaphragm (110) tensioned on the support frame, onto which diaphragm at least one electrically conductive conductor track (120) is applied by coating. At least one end of the conductor track applied by coating extends onto the contacting surface (200) of the support frame. The connecting line (170) can be connected to the contacting surface (200) of the support frame by means of a soldered connection (160).
A method for a low-latency audio transmission in a mobile communications network is used to transmit not just first data frames or sub-frames (PRB1) coded in a first format but also alternatively shorter second data frames coded in a different second format for audio data. An audio transmission system comprises a terminal (100), a base station (200), and an audio receiver (300). The terminal (100) transmits audio data coded in the second format and other data coded in the first format via an uplink (UL1). The audio receiver according to the invention directly receives the audio data transmitted via the uplink. The coding/decoding of the audio data of one of the second data frames (LLF0) is influenced by other audio data of the same second data frame but not by the audio data of a different second data frame. Thus, the decoding of the audio data can be started earlier and the latency time is shortened in an audio receiver according to the invention. The audio transmission from the terminal to the audio receiver is carried out in the allocated time slots and frequencies in a waveform which conforms to the mobile communications network.
A wireless microphone and/or in-ear monitor system is proposed that has at least one clock master (TM) for prescribing a word clock and at least one clock slave (TS) that can be synchronised to the word clock prescribed by the clock master (TM). Between the clock master (TM) and the at least one clock slave (TS) there is a digital wireless transmission link that digitally transmits both synchronisation signals and audio signals. The clock master (TM) has a clock reference in order to prescribe a first sample clock (S1). The clock master further has a synchronisation interface (SY) for wirelessly transmitting a synchronisation word (S). The clock master (TM) has a first timer (T1). A first phase (P1) of the first clock signal (S1) is detected after expiry of the first timer (T1) and the first phase (P1) is wirelessly transmitted to the at least one clock slave (TS). The at least one first clock slave (TS) has a second timer (T2). After expiry of the second timer (T2), a second phase (P2) of the second clock signal (S2) of the clock slave (TS) is detected and is compared with the wirelessly transmitted first phase (P1). The difference between the first and second phases (P1, P2) is used as an input variable for a control unit (R) in the at least one clock slave (TS). The control unit (R) adjusts an adjustable sample clock of the at least one clock slave (TS) such that it corresponds to the first clock (S1) of the clock master (TM).
The invention relates to a shotgun microphone unit (1000) which comprises a housing (1400), a microphone capsule (1110), a shotgun tube (1120) having a longitudinal axis (1120a) and a shotgun mounting for mounting the shotgun tube (1120) with the microphone capsule (1110) within the housing. The shotgun mounting has an axial and a radial mounting, wherein the axial mounting is designed in a softer manner than the radial mounting.
H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency response; Transducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
The invention relates to a microphone unit for a mobile device, in particular a smartphone or a tablet computer. The microphone unit comprises a microphone mounting (120), a microphone (130) with a first end (135) and a second end (136), and a first clamping jaw (124) with a first inner wall (121) which defines a first plane (121a) and a second inner wall (122) which defines a second plane (122a). The first inner wall (121) and the second inner wall (122) are arranged substantially perpendicularly to each other, and the first plane (121a) and the second plane (122a) form an intersection (127). The microphone mounting (120) further comprises a second clamping jaw (126) with a third inner wall (123), said second inner wall (122) and third inner wall (123) lying opposite each other in a parallel manner and being designed to rest against opposing lateral surfaces (102, 103) of a mobile device (100). In addition, the microphone mounting (120) comprises a connection piece (125) for connecting the first clamping jaw (124) to the second clamping jaw (126), said connection piece (125) and inner walls (121, 122, 123) of the clamping jaws (124, 126) delimiting a clamping region lying therebetween for clamping a mobile device (100). Lastly, the microphone unit comprises a folding device (133) which is connected to the first end (135) of the microphone (130) and is designed to pivot the microphone (130) about a pivot axis (134). The pivot axis (134) lies parallel to the intersection (127), and the folding device lies outside of the clamping region.
Disclosed is a method for joining a first component (100) which has a first thread (110) on or in a second component (200) which has a second thread (210). A second component (200) which has the second thread (210) is held upwards in a receiving unit (310) of a joining unit (300). A first component (100) which has a first thread (110) is placed downwards on the second component (200) such that the first component (100) rests on the second component (200) on the basis of its force of gravity or weight force. The second component (200) is rotationally jolted by the joining unit (300) until the first and the second threads (110, 210) engage at least partially in each other.
B25B 21/00 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
B25B 21/02 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose with means for imparting impact to screwdriver blade or nut socket
G10L 21/00 - Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
H04R 1/00 - LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS - Details of transducers
The invention relates to a mobile conference system, which has a first mobile master hands-free unit (1100) and at least one second mobile slave hands-free unit (1200), which each have at least one microphone (1130, 1230) for recording audio signals, a loudspeaker (1140, 1240) for playing back audio signals to be played back, a battery unit (1010) for supplying energy, an operating unit (1110, 1210), at least one lighting unit (1121, 1221), and a first transmitting/receiving unit (1150, 1250) for bidirectional wireless communication between the first and the second mobile hands-free units (1100, 1200). The first hands-free unit (1100) has a second transmitting/receiving unit (1160) for wireless bidirectional audio communication with an external unit. The first hands-free unit (1100) is designed to wirelessly transmit audio signals that were received from the external unit by means of the second transmitting/receiving unit (1160) to the second mobile hands-free unit (1200) by means of the first transmitting/receiving unit (1150). The first hands-free unit (1100) is designed to mix audio signals that were received from the second mobile hands-free unit (1200) by means of the first transmitting/receiving unit (1150) with audio signals recorded by means of the at least one microphone (1130) of the first hands-free unit (1100) and to wirelessly transmit said audio signals to the external unit by means of the second transmitting/receiving unit (1160).
A conference system (1000) is provided, comprising: a microphone array unit (2000) having a plurality of microphone capsules (2001 - 2017) arranged in or on a board (2020) mountable on or in a ceiling of a conference room (1001). The microphone array unit (2000) has a steerable beam (2000b) and a maximum detection angle range (2730). The conference system comprises a processing unit (2400) which is configured to receive the output signals of the microphone capsules (2001 - 2017) and to steer the beam based on the received output signal of the microphone array unit (2000). The processing unit (2400) is configured to control the microphone array (2000) to limit the detection angle range (2730) to exclude at least one predetermined exclusion sector (2731) in which a noise source is located.
H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
The invention relates to an electrodynamic sound transducer comprising a chassis (130), a membrane (110) with a hole (150) in the center of the membrane (110), a moving coil (120), a magnetic system (140) and a resonator (200) which is placed in the hole (150) in the center of the membrane.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency response; Transducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
H04R 9/02 - Transducers of moving-coil, moving-strip, or moving-wire type - Details
H04R 5/033 - Headphones for stereophonic communication
H04R 7/18 - Mounting or tensioning of diaphragms or cones at the periphery
According to the invention, an earpiece cable (100) is provided with a first and second end (110, 120), wherein the second end (120) has a plug (121). The cable also has at least one electrical line (140) with at least two wires (140a, 140b) and a sheath (150), and at least one eyelet unit (300, 300a, 300b) for the securing an auxiliary unit or an accessory (600). The sheath (150) is opened at one point and the eyelet unit (300, 300a, 300b) is provided there in such a way that at least one wire (140a, 140b) contacts the eyelet unit (300, 300a, 300b).
The invention relates to a hi-fi audio tube amplifier (1000) comprising a housing (500), a tube housing section (300), and a storage box (400) for headphones (700) which is integrated on the housing (500); the tube housing section (300) includes a plurality of tubes (100). Also disclosed are headphones for a hi-fi audio tube amplifier.
The invention relates to a wireless microphone or wireless in-ear monitoring system. The system has at least one transmitting and/or receiving unit (600) which comprises at least two antenna modules (620-1 to 620-m), each of the antenna modules having an output plug unit (630-1 to 630-m), as well as a combining unit (650) with an input interface (640). Output signals of the at least two antenna modules (620-1 to 620-m) are received via the input interface (640) of the combining unit (650). This is done for those input plug units which are inserted into the input interface (640) of the combining unit (650). This is carried out in order to execute diversity processing of the signals of the antenna modules.
H04B 7/08 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
H04R 1/00 - LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS - Details of transducers
30.
METHOD OF STEREOPHONIC RECORDING AND BINAURAL EARPHONE UNIT
A method of stereophonic recording is provided. A first audio signal is detected by a microphone (120) in a first housing (110) of an earphone (100) detecting an environmental sound outside the first housing. A second audio signal is detected by a microphone (120) in the second housing (110) to detect environmental sound outside the second housing. The detected first and second audio signals are forwarded to an external device (200) for further processing and recording via an output unit (150) of the earphone unit (100). The first and second audio signals are processed and forwarded to the first and second electro-acoustic transducers (130) in the first and second housing (110) of the earphone (100) respectively. The processed first and second audio signals are reproduced by the first and second electro-acoustic transducers (130) respectively to implement a talk-through function.
The invention relates to a wireless microphone and/or wireless in-ear monitoring system, having at least a first mobile device (MT), in particular having a wireless microphone for wirelessly transmitting first audio signals (UL). The system also has at least one base station for wirelessly receiving first audio signals (UL) transmitted by the at least one mobile device (MT). The wireless transmission is based on an orthogonal frequency-division multiplexing (OFDM) transmission during a TDMA time slot. Each wireless microphone occupies at least one time slot within 2 ms. Each of the TDMA frames has a plurality of slots, each of which has exactly one OFDM symbol. Therefore, exactly one OFDM symbol is transmitted in each TDMA slot. During a time slot provided in accordance with the TDMA, a transmission on the basis of an OFDM method occurs. The TDMA frame length is so short because a latency of ឬ 4 ms is required for professional audio transmission, for example in the case of wireless microphone systems.
The invention relates to a mains plug component, comprising a housing (110) and a plug contact unit (130) with at least two plug contacts (131, 132), wherein the plug contact unit (130) is designed so as to be rotatable and/or foldable on the housing (110).
The invention relates to a method for detecting and synchronizing audio/video signals. At least one audio signal (140) is detected by means of at least one microphone unit (110). Timestamps (117) are generated and stored together with the detected audio signal (140) in the microphone unit (110). An optical synchronization signal (150) is output by the microphone unit (110), said optical synchronization signal (150) containing optical timestamps (117b), each of which is assigned to one of the generated timestamps (117). At least one video signal is detected by means of at least one camera unit (180), and the video signal has at least parts of the optical synchronization signal (150) output by the microphone unit (110). The optical timestamps (117b) contained in the optical synchronization signal (150) are extracted, and the video signal and the audio signal (140) are synchronized on the basis of the timestamps (117) in the audio signal and the optical timestamps (117b) extracted from the detected optical synchronization signal (150).
G11B 27/30 - Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
G11B 27/28 - Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
H04N 21/43 - Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronizing decoder's clock; Client middleware
The invention relates to a microphone unit comprising a microphone holder (11), a microphone (12) with a microphone capsule (12a) which is arranged at a free end (13) of the microphone holder (11), and a removable adapter unit (100) for placing over the free end (13) of the microphone holder (11). The adapter unit (100) has a funnel (110) for improved detection of speech signals.
H04R 1/22 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
H04M 1/05 - Supports for telephone transmitters or receivers specially adapted for use on head, throat or breast
H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
H04R 1/38 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone
Disclosed is an electrodynamic sound transducer comprising a membrane (110) that can oscillate, an oscillating coil (130) comprising a first end (131), a length (133) and a second end (131, 132), and a magnet system (120) which has a gap (160). The first end (131) of the oscillating coil (130) is coupled to the membrane (110) so that the oscillating coil (130) oscillates together with the membrane (110). The coil (130) is arranged in the gap (160) in the magnet system (120). The length of the oscillating coil (130) is designed such that the first end (131) of the oscillating coil (130) projects under or out of the magnet system (120). The electrodynamic sound transducer further comprises a centring unit (140) that can oscillate, which is coupled to the second free end (132) of the oscillating coil (130) for centring and/or guiding the oscillating coil (130).
The invention relates to a method for wirelessly transmitting audio signals from a Bluetooth audio source to a computer device (audio sink) on the basis of the Bluetooth protocol. An audio signal is converted into audio data packets in the Bluetooth audio source, and the audio data packets are converted into L2CAP data packets in the Bluetooth audio source on the basis of a protocol with access to the L2CAP layer, for example the radio frequency communication protocol (RFCOMM), and are wirelessly transmitted. The Bluetooth audio source prevents a retransmission of erroneous L2CAP data packets or L2CAP data packets which were not received by the sink or reduces the retransmission to a specified degree which is limited by the maximally permissible latency. Thus, the audio stream or the audio signal can be transmitted or reproduced step-by-step. According to the invention, a transmission of an audio stream or an audio signal on the L2CAP layer is provided with a reduced repetition rate for erroneous data packets. By using the method according to the invention, access to RFCOMM or another data transmission protocol with access to the L2CAP layer can be provided from the application layer.
The invention relates to an electrodynamic sound transducer comprising a chassis (400, 1400) and at least one vibrating membrane (100, 1100), which comprises, on the edge thereof (1101), at least two securing sections (1101) which are opposite each other and which secure the membrane (100, 1100) to the chassis (400, 1400). Between the securing sections (1101), the edge (1105) of the membrane (100, 1100) is not connected to the chassis (400, 1400) allowing the membrane (100, 1100) to freely vibrate on said points.
The invention relates to an electrodynamic sound transducer having a diaphragm (110) that can vibrate, a vibration coil (120) that is coupled to the diaphragm (110), and a magnet system (130). The magnet system (130) has a first and a second magnet ring (131, 132) which are arranged above and below the diaphragm (110) and which are radially magnetised. The vibration coil (120) is arranged between the first and second magnet rings (131, 132). The first magnet ring has an end (131a) with a projection, in particular with a point or rounding, which extends towards the diaphragm (110), and which is adapted to a contour of the diaphragm (110) in the region of the first and second magnet rings (131, 132). In this way, a strong magnetic field can be achieved in the region of the vibration coil (120) without influencing the maximum deflection of the diaphragm (110).
The invention relates to a wireless camera receiver having a housing (500a), a wireless receiver unit for receiving a wireless audio signal and an XLR connector (510). The XLR connector (510) is rotatable with respect to the housing (500a).
H04N 5/60 - Receiver circuitry for the sound signals
G08B 13/196 - Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
40.
WIRELESS POCKET TRANSMITTER, RECHARGEABLE BATTERY UNIT FOR A WIRELESS POCKET TRANSMITTER, WIRELESS MICROPHONE, RECHARGEABLE BATTERY FOR A WIRELESS MICROPHONE AND CHARGING UNIT FOR A POCKET TRANSMITTER AND/OR A MICROPHONE
The invention relates to a wireless pocket transmitter with a rear face (120), a front face (110) and a receiving compartment (101) for a rechargeable battery (200). The receiving compartment (101) has a rear wall (101a), at least part of which forms one part of the rear face, two lateral surfaces (101c) and a connection section (101b) comprising electrical contacts (180). A first side of each of the two lateral surfaces (101c) is coupled to the rear wall and a first end of each is coupled to the connection section (101b). The second end of each lateral surface has a guide (171, 172) for the rechargeable battery. The guides do not extend along the whole length of the lateral surface and the guide has two projections and a passage therebetween.
The invention relates to a method for producing acoustic damping elements having an acoustic resistance. For this purpose, at least one bushing (300) with a hole (310) having a diameter (DB) is placed below a base material (100). At least one hole (10) is punched into the base material (100) by means of at least one punch (200) having a punch diameter (DS). The punching process is repeated in different locations of the base material (100).
G10K 11/00 - Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
B26F 1/02 - Perforating by punching, e.g. with relatively-reciprocating punch and bed
42.
HEADPHONE UNIT OR HEARING PROTECTION WITH A HEADBAND
A headphone unit or hearing protection with a headband (100) is provided which has a first slider (80) with a first toothed rack (20) and a second slider (30) with a second toothed rack (50). The first toothed rack (20) has a free end (21) and an area with teeth (22). The second toothed rack (50) has a free end (51) and an area with teeth (52). The headphone unit additionally has an adjustment unit (110) with a toothed gear (10) and a clamp (60), wherein the clamp (60) is provided in such a way that the teeth (22, 52) of the first and second toothed rack (20, 50) engage with the toothed gear (10).
An electrodynamic sound transducer having a diaphragm (140), having a dome (141) and a bead (142) and also a voice coil (130) is provided. The sound transducer also has a first and second magnet ring (150, 160) as part of the magnet system, wherein the first and second magnet ring (150, 160) are arranged in each case on opposite sides of the diaphragm (140). The voice coil (130) is coupled to the diaphragm (140) and is arranged more or less at or outside the circumference of the first and second magnet ring (150, 160).
The invention relates to a headphone unit, comprising a first and a second ear shell (1). Each ear shell comprises a housing (1a), a peripheral ear cushion (3), and a first electroacoustic reproduction transducer (2) for emitting sound outwardly, which electroacoustic reproduction transducer is arranged in or on the housing of the ear shell (1). The headphone unit has at least one second reproduction transducer (20) for emitting sound in the direction of the ear of the user. The headphone unit has a first operating position, in which the ear shells (1) are placed with the ear cushions (3) on or around an ear. The headphone unit has a second operating position, in which the ear cushions (3) of the first and second ear shells (1) lie against each other such that a closed volume (100) is formed therebetween, which can be used as a resonance chamber for the two first electroacoustic reproduction transducers (2) when the two electroacoustic reproduction transducers (2) are activated in the second operating position. By designing the inner volume as a resonance chamber, outward reproduction into the free field can occur with good quality.
The invention relates to a stereo microphone unit with a first and a second interference tube (110, 120), which are arranged at an angle (α) to each other and each of which has a first end (111, 121) and a second end (112, 122). The stereo microphone unit has a first and a second microphone capsule (MK1, MK2) for detecting an audio signal. Each of the microphone capsules (MK1, MK2) is provided at an end (112, 122) of the first and second interference tube (110, 120). The microphone unit further has a securing unit (150, 151, 152) for collectively securing the first and second interference tube (110, 120), in particular on a mobile device or on a stand. Furthermore, a sleeve (130) is provided as a windscreen, which is connected to the securing unit (150) and which completely surrounds the first and second interference tube (110, 120).
H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
H04R 5/027 - Spatial or constructional arrangements of microphones, e.g. in dummy heads
H04R 1/18 - Holders for styli; Mounting holders on transducers
The invention relates to a headset, comprising a retainer (110), which is shaped or designed in such a way that the retainer can be donned around the base of an ear of a user. The retainer (110) has a first end (111) and a second end (112). The headset has an earmold unit or an ear fitting piece having an electroacoustic reproduction transducer and also has a connector unit (150) for electrically and mechanically contacting an earmold unit (200) or an ear fitting piece. The connector unit (150) is provided at the first end (111) of the retainer (110). A boom arm (300) having a boom microphone (320) is fastened to the second end (112) of the retainer (110) by means of a fastening unit (140).
The invention relates to a method for converting speech in an audio signal or audio/video signal into text. A detected or stored audio signal or audio/video signal is analyzed. The speech in the audio signal or audio/video signal is converted into text information. The time information of the audio signal or audio/video signal is associated with the text information.
The invention relates to a headphone having a headband (7), which is arc-shaped and spans a centre plane (2). The headphone has at least one spacer element (7b), which is connected fixedly to one end of the headband (7) and projects out of the centre plane (2), at least one articulation (1), which is fastened to the spacer element (7b) at a distance from the centre plane (2), and at least one ear cap (6), which is coupled in a pivotable manner to the spacer element (7b) by means of the at least one articulation (1). The articulation (1) is provided such that the pivot axis (1c) thereof is substantially perpendicular to the head surface of a user (9) of the headphone, such that the ear cap (6) can be pivoted by means of the articulation (1) from a first position, in which said ear cap covers an ear (9a) of the user (9), into a second position (6'), in which the ear (9a) is exposed.
The invention relates to a headset comprising a surrounding ear cushion (120) and a sound generator which comprises an essentially rigid plate (110) and a drive system (105) for converting electric signals into mechanical oscillations of the plate (110).
The invention relates to a headphone or a headset, comprising a housing (210) and a sealing unit (240) for acoustically sealing an ear canal or an ear of a user from an exterior. The headphone or the headset has an inner microphone (250), an outer microphone (220), and an electronic unit (400). The electronic unit (400) compares the signal of the inner microphone (250) with the signal of the outer microphone (220) and can activate an energy-saving operating mode, e.g., by reducing the voltage supply for the headphone or the headset in dependence on the comparison.
A headphone or an earphone is provided which comprises a housing with an open end and at Ieast one defined dominant acoustic opening, an acoustically sealing earpad arranged at the open end of the housing, and at Ieast one microphone arranged adjacent to common ear or in the vicinity of the dominant acoustical opening for detecting noise, wherein the dominant acoustic opening is arranged within a radius of 2 cm around a midpoint of the at Ieast one microphone. The headphone or earphone also comprises an active noise compensation unit for performing an active noise compensation based on the output of the microphone and for generating a compensation signal. The headphone or earphone also comprises an electro-acoustical transducer inside the housing for reproducing the compensation signal.
The invention relates to an electrical and/or electronic device having a contacting unit (200) for establishing electrical contact with a wire (400) having insulation. The contacting unit (200) has a contacting segment (210), in which a first end (410) of a wire (400) is inserted. A ball (300) is inserted into the contacting segment (210) in such a way that the ball (300) clamps the first end of the wire (400) between the ball (300) and the contacting segment (210) and removes the insulation in the process, so that electrical contact is established.
The invention relates to an ear-canal earpiece, comprising an electroacoustic sound transducer (110), a first sound-guiding unit (120) for guiding the sound from the electroacoustic sound transducer, a second sound-guiding unit (130) for extending the first sound-guiding unit (120), a third sound-guiding unit (140), an outer contour of which is adapted to an inner contour of an ear canal of a user and which surrounds the second sound-guiding unit, and a sound wall (150) in the region of the second sound-guiding unit (130), wherein the sound wall (150) extends between the second and third sound-guiding units (130, 140).
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency response; Transducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
The invention relates to a device which produces the necessary directional audio signals for a 3-dimensional audio reproduction, and uses, as input signals, available channels of an audio receiver provided for a 2-dimensional audio reproduction. By taking into account psychoacoustic effects, the desired spatial 3D audio effect is produced by a target-directed use of signal delays, frequency-dependent amplitude adaptations and a reduced use of Hall effects in conjunction with a targeted asymmetrical treatment.
H04S 5/00 - Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
55.
MICROPHONE HAVING A MICROPHONE CAPSULE, DYNAMIC SOUND TRANSDUCER FOR HEADPHONES, EARPHONES OR HEADSETS AND METHOD FOR PRODUCING A MICROPHONE CAPSULE OR A SOUND TRANSDUCER
A microphone having a microphone capsule (10) is provided. The microphone capsule (10) has a diaphragm carrier (40), a diaphragm (20) and an adhesive tape ring (30) which is used to fasten the diaphragm (20) to or in the diaphragm carrier (40). The microphone capsule (10) is in the form of a dynamic sound transducer. A dynamic sound transducer for headphones, earphones or headsets is also provided. The sound transducer has a diaphragm carrier (40), a diaphragm (20) and a moving coil (22) which is coupled to the diaphragm. In a similar manner to the microphone capsule, the sound transducer has an adhesive tape ring (30) between the diaphragm (20) and the diaphragm carrier, which ring is used to fasten the diaphragm (20) to the diaphragm carrier (40).
A high-frequency HF transmitter for wireless microphones, guitar transmitters or pocket transmitters is provided. The transmitter has at least one antenna (30, 70, 85), a power amplifier (40) for amplifying a high-frequency audio signal, an interference signal detection unit (60, 65) for detecting an interference signal injected via the antenna (30, 70, 85), a power detector (50) at the output of the detection unit (60, 65) for detecting the power of the interference signals detected by the interference signal detection unit (60, 65) and an operating point control unit (20) for adjusting the operating point power of the power amplifier (40) on the basis of the power of the interference signals which is detected by the power detector.
An ear canal earphone having a diaphragm (11), a first volume (12) in front of the diaphragm and a sound guidance unit (13) for guiding sound produced by the diaphragm (11) into an ear canal of a user is provided. The sound guidance unit (13) has an interior cross section that is of essentially eliptical design.
An earpiece having at least one electroacoustic reproduction transducer (110) for reproducing an audio signal and at least one microphone (120) is provided. The earpiece also has an evaluation unit (170) for evaluating an output signal from the microphone (120) for haptics, particularly on the earpiece, and for producing control commands for controlling the earpiece on the basis of the output signal from the microphone.
The invention relates to an electroacoustic transducer, comprising a magnet system (120), which is produced by means of at least one two-component powder injection molding method and which is debound.
H04R 9/02 - Transducers of moving-coil, moving-strip, or moving-wire type - Details
H04R 31/00 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
B22F 3/22 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor for producing castings from a slip
H01F 3/08 - Cores, yokes or armatures made from powder
A microphone having a microphone capsule (10) and a microphone capsule suspension (20) is provided. The microphone capsule suspension (20) has a first and a second housing section (10, 30) and also a decoupling unit (40). In this arrangement, the microphone capsule (10) is mounted on the decoupling unit (40) for the purpose of decoupling structure-borne sound. The decoupling unit (40) is in turn attached to the first and/or second housing section (10, 30). The decoupling unit (40) has a shape alteration section which alters the shape under load. The decoupling unit has at least two arms, each of which has a first and a second end. The respective second ends have an attachment section for holding a microphone capsule. Each arm has a shape alteration section, which alters the shape under a first load, and an elastic section, which allows elastic deformation of length from a second load onwards.
The invention relates to a headphone, comprising at least one microphone (12), an analog pre-emphasis filter (20) for the pre-emphasis of the microphone signal, an analog-to-digital converter (30) for digitizing the output signal of the pre-emphasis filter, an active noise compensation unit (40) for carrying out active noise compensation on the basis of the output signal of the microphone (12) that has undergone pre-emphasis and digitization and for outputting a counter sound signal, and a digital-to-analog converter (50) for carrying out an analog/digital conversion of the counter sound produced by the active noise compensation unit (40).
G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
A microphone system is provided. The microphone system comprises at least one hand-held microphone (100) and a base station (200). Audio signals detected by the hand-held microphone (100) are forwarded to the base station (200). The hand-held microphone (100) comprises a motion detection unit (122) for detecting a motion or a gesture of a hand-held microphone (100). A control signal generating unit generates control signals based on the detected motion or gesture of the hand-held microphone (100). The hand-held microphone (100) is adapted to forward the detected motion or gesture or the control signals to the base station (200). The output audio signal of the hand-held microphone (100) can be manipulated based on the control signals. The hand-held microphone (100) comprises an activation unit (130) for activating or deactivating the motion detection unit (122) or for activating or deactivating the transmission of the control signals.
A loudspeaker apparatus is therefore provided which has a diaphragm (M) and a magnet system (MS) for driving the diaphragm (M). The loudspeaker apparatus also has a light source (L) and a cooling device (K) having at least one cooling unit (K1) for cooling the at least one light source (L). The light source (L) is thermally coupled to the first cooling unit (K1). The first cooling unit (K1) having the at least one light source (L) is arranged in front of the diaphragm (M). The outside of the diaphragm (M) may have light-reflecting properties.
The invention relates to a microphone comprising a first plurality of miniature microphones each for detecting audio signals, a second plurality of miniature microphones each for detecting audio signals, and a processing unit for processing the audio signals detected by the first plurality of miniature microphones and the audio signals detected by the second plurality of miniature microphones. The processing unit processes the detected audio signals such that the processing unit can output an audio signal that is dependent on the direction of sound incidence.
The invention relates to a wireless in-ear monitor system having at least one wireless in-ear monitor transmitter (S) for wirelessly transmitting an audio signal by means of a first transmitting unit (S1) and at least one wireless in-ear monitor receiver (E) for wirelessly receiving the audio signals transmitted by the at least one in-ear monitor transmitter, by means of a second receiving unit (E1) and for outputting the received audio signal, on the basis of at least one playback parameter and/or system parameter of the in-ear-monitor receiver. The in-ear monitor transmitter comprises at least one transmitting/receiving unit (SE3) for transmitting playback parameters and/or system parameters of the at least one in-ear monitor receiver to a parameter check, and for receiving playback parameters and/or system parameters of a further in-ear monitor receiver, and a memory (PS) for playback parameters and/or system parameters of the in-ear monitor receiver and/or of the additional in-ear monitor receiver. The in-ear monitor receiver (E) is designed for outputting the received audio signal, on the basis of the playback and/or system parameters saved in the memory.
H04H 20/61 - Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
66.
DISPLAY LED UNIT AND METHOD FOR CONTROLLING DISPLAY LEDS
The invention relates to a display LED unit, comprising at least one light-emitting diode (10) having a first and a second operating mode. In a first operation mode, the LED (10) is operated in forward operation and a light signal is emitted in accordance with the forward voltage that is applied to the LED. In a second operating mode, the LED (10) is operated in reverse operation with a reverse voltage and a voltage signal is output in accordance with the ambient light. The display LED unit further comprises a control unit (100) for controlling the light emission of the LED (10) in the first operating mode in accordance with the ambient light detected by the LED (10) in the second operation mode.
The invention relates to a wireless audio transmission system, particularly a wireless microphone system for wireless audio transmission. The system comprises at least one wireless microphone unit (400) for capturing audio signals and for wirelessly transmitting the captured audio signals, and a central unit. The central unit comprises a wireless receiver unit (500) for receiving the wirelessly transmitted audio signals from the wireless microphone units (400), a pilot tone transmitting unit (600) for transmitting a first pilot tone on a pilot channel, and a pilot tone receiving unit (700) for receiving and processing a second pilot tone signal. The pilot tone signal comprises information with respect to the wireless transmission between the microphone units (400) and the central unit (10).
The invention relates to an earphone comprising a housing (10) with a first and a second end (10a, 10b). The housing has a first opening (11) at the first end (10a) and a second opening (12) at the second end (10b) for receiving an electroacoustic reproducing transducer. The earphone further comprises a second pressure reducing unit (20) which is placed over the second opening (12) to reduce the dynamic water pressure on the second opening (12), and a first pressure reducing unit (40) which is placed over the first opening (11) to reduce the dynamic water pressure on the first opening (11). Furthermore a second waterproof, yet acoustically transparent film (50) is provided inside the housing (10), over the second opening (12), in order to seal the second opening (12) in a waterproof manner. A first waterproof, yet acoustically transparent film (60) is placed inside the housing, over the first hole (11), in order to seal the first hole (11) in a waterproof manner.
The invention relates to a wireless microphone unit, provided with an input terminal (EA) for receiving an audio signal (AS) detected by a microphone capsule (ME), an embedding unit (ZCE) for embedding a time code (ZC) in the detected audio signal (AS1) and for outputting a first audio signal (AS1) having an embedded time code (ZC), and a data reduction unit (DRE) for carrying out data reduction (AS2) of the first audio signals (AS1) and for outputting second data-reduced audio signals (AS2). The wireless microphone unit further comprises a memory unit (SP) for storing the first audio signals (AS1), a transmitter (SE) for wirelessly transmitting the first or second audio signal (AS1; AS2), and a return link receiver (RSE) for receiving transmission terms of the transmission of the first or second audio signal (AS1; AS2) from the transmitter (SE) to an external receiver and/or setting information or setting parameters. The data reduction unit (DRE) is designed to perform data reduction of the first audio signal (AS2) depending on the setting information or parameters received from the return link receiver (RSE). The transmitter (SE) is designed to transmit the first audio signal (AS1) or the second audio signal (AS2) wirelessly on the basis of the information received via the return link receiver (RSE).
The invention relates to a digital wireless audio transmission system, particularly a wireless microphone system for wireless audio transmission. The audio transmission system comprises at least one wireless digital microphone unit (400) for capturing audio signals and wirelessly transmitting the captured audio signals on the basis of settable transmission settings and transmission parameters, and a central unit (10). The central unit comprises a monitor unit (100) for monitoring and analyzing a frequency range of an available frequency band, a link adaptation unit (200) for adapting the transmission settings and transmission parameters of the wireless transmission of the microphone unit on the basis of the results of the monitor unit (100), and a transceiver unit (500) for receiving wirelessly transmitted audio signals from the wireless microphone units (400) and for sending transmission settings and transmission parameters via a return channel to the wireless microphone units (400). The transmission settings and transmission parameters of the wireless transmission of the wireless microphone unit (400) are modified in accordance with the transmission settings and transmission parameters transmitted via the return channel. The transmission settings and transmission parameters transmitted via the feedback channel comprise a center frequency of a channel, a selection of a modulation method and parameters of the modulation method, a data rate and/or channel coding.
The invention relates to a microphone unit for recording audio signals, comprising an audio processing unit (20) for processing the recorded audio signals, a detection unit (30, 50) for detecting metadata belonging to the audiosignal, and a first transceiver unit (10) for sending the processed audio signal and the metadata.
A headphone comprises at least one headband (B), at least one housing (G) for receiving an electroacoustic transducer, and a spring unit (F1, F2). The at least one housing (G) is arranged on one end of the headband. The spring unit (F1, F2) has at least a first spring (F1) which is operatively connected to the headband (B) in order to adjust the contact pressure of the headband (B). The at least one first spring (F1) has a first and a second end, each of which is arranged on the headband (B) and can be slid along the headband (B). The headband (B) further has a supporting unit (L) for supporting the at least first spring (F1).
A headset comprises at least one microphone (M) for capturing ambient noises, at least one electroacoustic reproduction transducer (L), and a control unit (SE) for controlling the headset. The headset further has a digital active noise reduction unit (ANR) for carrying out digital active noise reduction based on the ambient noises recorded by the microphone (M). The headset further has a data interface (DS) for receiving data and/or parameters for the headset and for outputting data and/or parameters stored in the headset.
G10K 11/175 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
K+H VERTRIEBS- UND ENTWICKLUNGSGESELLSCHAFT MBH (Germany)
SENNHEISER ELECTRONIC GMBH & CO. KG (Germany)
Inventor
Knieschewski, Jörg
Abstract
The invention relates to a speaker system comprising a plurality of segmented line source arrays and a plurality of acoustic wave shapers (200). In addition, an overlap region (210) between two adjoining wave shapers (200) is provided.
H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
The invention relates to a conference system and to a method for controlling the conference system, wherein the conference system comprises a president voice station (PS) and a plurality of delegate voice stations (DS). The president voice station (PS) comprises a conference control unit (KSE) for controlling the operation of the conference system and/or the plurality of delegate voice stations.
The invention relates to a speaker apparatus comprising a membrane (M) having at least one optical focal point, a magnet system (MS) for actuating the membrane (M), and a light source (L) disposed in front of the membrane (M). According to the invention, the outer side of the membrane (M) has a light-reflecting layer or light-reflecting properties. The light source is disposed in the optical focal point.
The invention relates to an earpiece (1) comprising a first side (13) facing the ear, an acoustic transducer (2) for outputting a sound signal, and a sound guiding element (3) having a first end (14) and a second end (15). The first end (14) faces the acoustic transducer (2) and the second end (15) faces the first end (13) of the (ear-canal) earpiece (1). The sound guiding element (3) is used to guide the sound signal to an ear canal of a user. The sound guiding element (3) comprises a first opening (4) at the second end (15) of the sound guiding element. The (ear-canal) earpiece (1) also comprises at least one volume element (5), which bounds a volume and which comprises at least one second opening (6) for connecting the volume to the first end (13) of the ear-canal earpiece (1).
There is provided a control system (1) comprising an earphone (2) and a processing device (3). The control system (1) has a processing device (3) for the evaluation of head movement information and/or head position information. In that case the processing device is adapted to output at least one control signal dependent on the evaluation, wherein the earphone has a sensor device (9a, 9b, 9c) for detecting the movement information and/or position information and a transmitting device (10) for transmitting the movement information and/or the position information to the processing device.
The invention relates to a sound transducer comprising a first magnetically conducting element (1), a second magnetically conducting element (3), and a permanent magnet (2), which is connected to a first magnetically conducting element (1) and a second magnetically conducting element (3). The first magnetically conducting element (1) and the second magnetically conducting element (3) form a first magnetically fluxed air gap (7a) in the radial direction of the sound transducer. The sound transducer further comprises an oscillating coil (5), which is arranged in the first magnetically fluxed air gap (7a) in an axially movable manner, and a membrane (6), which is connected to the oscillating coil (5) and is arranged in an axially movable manner. A second magnetically fluxed air gap (7b) is formed between the first magnetically conducting element (1) and the second magnetically conducting element (3). In the area of the second magnetically fluxed air gap (7b), the first magnetically conducting element (1) comprises a first section that at least partially comprises a material having a high magnetic resistance.
The invention provides a rechargeable battery unit for insertion into a portable electronic appliance. The rechargeable battery unit has an integrated charging unit and a charging socket (145). The charging socket (145) is freely accessible in the inserted and non-inserted state of the rechargeable battery unit.
The invention relates to a decision logic unit (20) for activating or deactivating a squelch. The activation or deactivation of the squelch is carried out as a function of an average value of the frequency (MWF), a variance, the intermediate frequency of the receiver (VF), an average value of the audio amplitude (MWA), a variance of the audio amplitude (VA) and/or a signal strength (SS) of the intermediate circuit frequency of the receiver (ZF).
The invention relates to a device for the reduction of foreign noise. The device has at least one sound converter (3) for receiving a wanted signal (u), for emitting a wanted sound (7), which leads to reduction of the foreign noise (6) when layered over the present foreign noise (6), and for simultaneously emitting a first signal which maps the action of the foreign noise (6) arriving at the sound converter (3) layered with the action of the wanted signal (u) applied to the sound converter (3). The first signal is processed to produce the wanted signal (u). The device also has a first filter (FuiM) for receiving the wanted signal (u), for emulating the behavior of the sound converter (3) during operation without foreign noise, and for emitting a second signal (iuM). The device also has a subtraction device for subtracting the second signal (iuM) from the first signal, such that the difference signal (idM) maps the foreign noise (6) arriving at the sound converter (3). The device also has a second filter (Fcomp) for receiving the difference signal (idM) and for producing the wanted signal (u) which is fed to the sound converter (3) to produce anti-noise.
G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
An ear adapter for an ear-canal hearing piece is proposed. The ear adapter has an inner part (30) with a first end and a second end, of which the first end serves for fitting onto an end of an ear-canal hearing piece. The ear adapter also has an outer part (40), which at least partially covers the inner part (31). The material of the outer part (40) is less hard than the material of the inner part (30).
An in-ear earpiece is provided, comprising a housing (50) for accommodating an electroacoustic transducer and an expansion adapter unit (20) that is coupled to the housing (50) of the in-ear earpiece. The expansion adapter unit comprises an expansion unit (20) with an upper part (26) that has a curvature for fitting into a crus inferius anthelicis, an anti-helix and/or a concha of an ear of a user. The expansion adapter unit further comprises at least one coupling element for coupling the upper part (26) to the housing (50) of the in-ear earpiece, wherein the expansion unit (20) comprises at least two flexible legs (22, 25) as coupling elements, wherein one leg (22) is coupled to a first end (28) of the upper part (26) and a second leg (25) is coupled to a second end (29) of the upper part (26).
An antenna unit comprising an antenna element (122) and at least one high-dielectric supplemental element (123) is provided, said supplemental element being disposed near the antenna element (122).
The invention provides a system for the bidirectional, synchronous transmission of data between an appliance (1) which is to be tested and a testing appliance (2) with an appliance (1) which is to be tested and a testing appliance (2) which can be connected to one another by means of an electrical transmission line (3) and by means of an electrical earth line (4). The two appliances (1, 2) are suitable for sending and receiving data on the electrical transmission line (3) in synch at a prescribed clock frequency and phase as sequences of first and second voltages which respectively represent a first and a second value of a bit. To receive data, a receiving appliance (1, 2) samples a voltage on the electrical transmission line (3) in prescribed sampling phases of the clock in order to identify whether the first or the second voltage is present. To send data, a sending appliance (1, 2) produces sequences of first and second voltages such that the first or the second voltage is present on the electrical transmission line (3) in the prescribed sampling phases of the receiving appliance (1, 2). The clock frequency and phase are prescribed by the appliance (1) which is to be tested, and the testing appliance (2) synchronizes itself to this clock frequency and phase, wherein the appliance (1) to be tested transmits a sequence of alternating first and second voltages on the electrical transmission line (3) in an initialization phase and the testing appliance (2) derives the clock frequency and phase from this sequence.
H04L 12/413 - Bus networks with decentralised control with random access, e.g. carrier-sense multiple-access with collision detection (CSMA-CD)
H04L 7/033 - Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal- generating means, e.g. using a phase-locked loop
The invention relates to a condenser microphone comprising a microphone capsule (100), which has an at least partially electrically conductive membrane (110) and a counter electrode (120) associated therewith. The counter electrode (120) comprises a printed circuit board (121) having a carrier made of an insulating material (121a) and at least one electrically conductive surface (121b).
A wireless conference system comprising a central unit (CU) with a first transmitting/receiving unit (ZE), a plurality of delegate terminals (DU), each comprising a second transmitting/receiving unit (DE) and at least one president terminal (PU) comprising a third transmitting/receiving unit (PE). The first transmission/receiving unit (ZE) is configured to communicate wirelessly with the second and the third transmitting/receiving units (DE, PE). The communication of the first transmitting/receiving unit (ZE) to the second and/or third transmitting/receiving units (DE, PE) represents a downlink communication (DL) and the communication of the second and/or third transmitting/receiving units (DE, PE) to the first receiving unit (ZE) represents an uplink communication (UL). The central unit (CU) comprises a frequency scan unit (FSE) for scanning previously determined frequency bands for detecting interferences in these frequency bands. The frequency scan unit (FSE) is further suited for establishing the frequency bands for the downlink and uplink communication (DL, UL), at least during initiation of the wireless conference system. At least some of the delegate terminals (DU) and one president terminal (PU) are provided in a conference room. The president terminal (PU) is configured to at least partially control the delegate terminals (DU). The central unit (CU) comprises a connection parameter unit (VPE) that detects at least one communication parameter between the central unit (CU) and the delegate terminals (DU) and/or the president terminal (PU) and compares the communication parameter with pre-set threshold values. The central unit (CU) changes the frequency channels for communication with the delegate terminals (DU) and/or the president terminal (PU) when the detected communication parameter falls below the threshold value.
H04W 4/06 - Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
89.
METHODS AND DEVICES FOR REPRODUCING SURROUND AUDIO SIGNALS VIA HEADPHONES
Method and devices for providing surround audio signals are provided. Surround audio signals are received and are binaurally filtered by at least one filter unit. In some embodiments, the input surround audio signals are also processed by at least one equalizing unit. In those embodiments, the binau¬ rally filtered signals and the equalized signals are combined to form output signals.
The invention provides a transportation and/or storage container for wireless receivers or headsets. The container has a housing (100), at least one accommodation unit (110, 120) for at least partially accommodating the wireless receiver or the headset and a battery unit (B) for storing electrical energy. The accommodation unit (110, 120) has a charging unit for charging the wireless receiver or the headset (200, 300) using the electrical energy, which is stored in the battery unit, when the wireless receiver or the headset is placed into the accommodation unit.
A receiver is provided with at least one housing (10) and at least one electroacoustic converter (20) with a first and second surface (21, 22). The receiver also has a first volume (100) which is defined by the first surface (21) of the electroacoustic converter (20) and by a first end (12) of the housings (10), and a second volume (200) which is defined by the second surface (22) of the electroacoustic converter (20) and by a second end (11) of the housings (10). An opening (300) is provided between the first and second volume (100, 200). A closing unit (30) acts to at least partially close the opening (300).
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency response; Transducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
The invention relates to an in-ear headphone comprising a housing (100), a converter housing (200), and a supporting unit (300). The converter housing (200) is used to receive an electroacoustic converter. The supporting unit (300) is connected to the housing (100) and is designed to be fixed in a concha of a carrier. The supporting unit (300) at least partially consists of a soft flexible material. In this way, the in-ear headphone can be fixed in any concha of a carrier.
The invention relates to an electronic device comprising an FPGA unit (100), a first and a second memory (210, 220) for storing boot data for the FPGA unit (100), and a digital potentiometer (300) for storing a first and a second setting. In the first setting of the potentiometer, the first memory (210) is coupled to the FPGA unit (100), and in the second setting of the potentiometer, the second memory (220) is coupled to the FPGA unit (100) for booting.
The invention relates to an earpiece having at least one housing (2) with a first end for receiving an earplug (1) and a second end for receiving a cap unit (3). The cap unit is hereby designed to be removable and/or displaceable relative to the housing. The cap unit exhibits different acoustic properties, such as for example different volumes and/or at least one opening in or at which an acoustic resistance material is provided. In this way, the acoustic properties of the earpiece can be adapted by the user during use to his/her individual concepts of sound.
H04R 1/28 - Transducer mountings or enclosures designed for specific frequency response; Transducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
An under-chin headphone set with two earpieces (OB) and two earplugs (OS) which are each secured at an ear-side end (OB1) of the two earpieces (OB), is provided. At the ear-side end (OB1) of each of the earpieces (OB), a ball joint (K) is provided in such a way that a first end of the ball joint (K) is arranged movably on the ear-side end (OB1) of the earpiece (OB), and the second end of the ball joint (K) serves to receive the earplugs (OS).
The invention provides an earphone having at least one electroacoustic transducer (W), an active noise compensation unit (LKU) for active noise compensation and a microphone (KM, MA) for recording the ambient noise. The output signal from the microphone (MA) is forwarded to the active noise compensation unit (LKU) so that active noise compensation can be carried out. The microphone (MA) is used to record voice signals which can be reproduced using the electroacoustic transducer (W). The earphone also has an internal microphone, the output signal from which is supplied to the active noise compensation unit.
G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
The invention relates to an oscillating coil for dynamic acoustic converters having layers (5, 6, 7, 8) of windings disposed one over the other, of which one layer (7, 8) is designed as an open winding having windings disposed at a distance from one another. In order to produce an oscillating coil for dynamic acoustic converters having a mechanical stability that up to now has been achieved only in oscillating coils having considerably more winding layers, the invention proposes that an oscillating coil for dynamic acoustic converters be designed with at least one second layer (7, 8) as an open winding.
The invention relates to a microphone (10) having a first end (12) with a first slip ring (100), which is divided into at least first and second segments (GND, 300). The first slip ring (100) interacts with the microphone head (12) when the microphone head (12) is fastened to the first end (12) of the microphone by means of a screw connection. The microphone further comprises a detection unit (16), which is coupled to the at least first and second segments (GND, 300) of the first slip ring (100) in order to detect a rotation of the microphone head (12).
The invention relates to a dynamic sound transducer, comprising a membrane with a bead. On a first side of the bead, first and second grooves (20, 30) are arranged such that the first and second grooves cross each other.
The invention relates to a microphone unit having a housing (230), a damping element (120) which is attached to the housing (230), and an adapter unit (150) for attachment to a lightning arrester of a camera. The damping element (120) is located between the housing (230) and the adapter unit (150). Furthermore, the housing has a pivotable base (231), wherein a battery compartment (90) is arranged in the base (231) in such a manner that the battery compartment (90) is enclosed in the housing (230) when the base (231) is in the closed state. A wind protection unit is also provided for the microphone unit.
H01M 2/10 - Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
patents
