IPC Classification

Class code (prefix) Descriptions Number of results
H04H 20/00 Arrangements for broadcast or for distribution combined with broadcast
H04H 20/02 Arrangements for relaying broadcast information
H04H 20/04 Arrangements for relaying broadcast information from field pickup units [FPU]
H04H 20/06 Arrangements for relaying broadcast information among broadcast stations
H04H 20/08 Arrangements for relaying broadcast information among terminal devices
H04H 20/10 Arrangements for replacing or switching information during the broadcast or during the distribution
H04H 20/12 Arrangements for monitoring, testing or troubleshooting
H04H 20/14 Arrangements for monitoring, testing or troubleshooting for monitoring programmes
H04H 20/16 Arrangements for broadcast or distribution of identical information repeatedly
H04H 20/18 Arrangements for synchronising broadcast or distribution via plural systems
H04H 20/20 Arrangements for broadcast or distribution of identical information via plural systems
H04H 20/22 Arrangements for broadcast of identical information via plural broadcast systems
H04H 20/24 Arrangements for distribution of identical information via broadcast system and non-broadcast system
H04H 20/26 Arrangements for switching distribution systems
H04H 20/28 Arrangements for simultaneous broadcast of plural pieces of information
H04H 20/30 Arrangements for simultaneous broadcast of plural pieces of information by a single channel
H04H 20/31 Arrangements for simultaneous broadcast of plural pieces of information by a single channel using in-band signals, e.g. subsonic or cue signal
H04H 20/33 Arrangements for simultaneous broadcast of plural pieces of information by plural channels
H04H 20/34 Arrangements for simultaneous broadcast of plural pieces of information by plural channels using an out-of-band subcarrier signal
H04H 20/36 Arrangements for simultaneous broadcast of plural pieces of information for AM broadcasts
H04H 20/38 Arrangements for distribution where lower stations, e.g. receivers, interact with the broadcast
H04H 20/40 Arrangements for broadcast specially adapted for accumulation-type receivers
H04H 20/42 Arrangements for resource management
H04H 20/44 Arrangements characterised by circuits or components specially adapted for broadcast
H04H 20/46 Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups
H04H 20/47 Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups specially adapted for stereophonic broadcast systems
H04H 20/48 Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups specially adapted for stereophonic broadcast systems for FM stereophonic broadcast systems
H04H 20/49 Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups specially adapted for stereophonic broadcast systems for AM stereophonic broadcast systems
H04H 20/51 Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups specially adapted for satellite broadcast systems
H04H 20/53 Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
H04H 20/55 Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for traffic information
H04H 20/57 Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for mobile receivers
H04H 20/59 Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for emergency or urgency
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
H04H 20/62 Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast for transportation systems, e.g. in vehicles
H04H 20/63 Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast to plural spots in a confined site, e.g. MATV [Master Antenna Television]
H04H 20/65 Arrangements characterised by transmission systems for broadcast
H04H 20/67 Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
H04H 20/69 Optical systems
H04H 20/71 Wireless systems
H04H 20/72 Wireless systems of terrestrial networks
H04H 20/74 Wireless systems of satellite networks
H04H 20/76 Wired systems
H04H 20/77 Wired systems using carrier waves
H04H 20/78 CATV [Community Antenna Television] systems
H04H 20/79 CATV [Community Antenna Television] systems using downlink of the CATV systems, e.g. audio broadcast via CATV network
H04H 20/80 Wired systems using carrier waves having frequencies in two or more frequency bands, e.g. medium wave and VHF
H04H 20/81 Wired systems using carrier waves combined with telephone network over which the broadcast is continuously available
H04H 20/82 Wired systems using signals not modulated onto a carrier
H04H 20/83 Wired systems using signals not modulated onto a carrier not sharing the network with any other service
H04H 20/84 Wired systems combined with power distribution network
H04H 20/86 Arrangements characterised by special technical features of the broadcast information, e.g. signal form or information format
H04H 20/88 Stereophonic broadcast systems
H04H 20/89 Stereophonic broadcast systems using three or more audio channels, e.g. triphonic or quadraphonic
H04H 20/91 Arrangements characterised by special technical features of the broadcast information, e.g. signal form or information format broadcasting computer programmes
H04H 20/93 Arrangements characterised by special technical features of the broadcast information, e.g. signal form or information format which locates resources of other pieces of information, e.g. URL [Uniform Resource Locator]
H04H 20/95 Arrangements characterised by special technical features of the broadcast information, e.g. signal form or information format characterised by a specific format, e.g. MP3 [MPEG-1 Audio Layer 3]
H04H 40/00 Arrangements specially adapted for receiving broadcast information
H04H 40/09 Arrangements for receiving desired information automatically according to timetables
H04H 40/18 Arrangements characterised by circuits or components specially adapted for receiving
H04H 40/27 Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups
H04H 40/36 Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups specially adapted for stereophonic broadcast receiving
H04H 40/45 Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast receiving
H04H 40/54 Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast receiving generating subcarriers
H04H 40/63 Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast receiving for separation improvements or adjustments
H04H 40/72 Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast receiving for noise suppression
H04H 40/81 Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast receiving for stereo-monaural switching
H04H 40/90 Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups specially adapted for satellite broadcast receiving
H04H 60/00 Arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time; Broadcast-related systems
H04H 60/02 Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linkage to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
H04H 60/04 Studio equipment; Interconnection of studios
H04H 60/05 Mobile studios
H04H 60/06 Arrangements for scheduling broadcast services or broadcast-related services
H04H 60/07 Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linkage to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information characterised by processes or methods for the generation
H04H 60/09 Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
H04H 60/11 Arrangements for counter-measures when a portion of broadcast information is unavailable
H04H 60/12 Arrangements for counter-measures when a portion of broadcast information is unavailable wherein another information is substituted for the portion of broadcast information
H04H 60/13 Arrangements for device control affected by the broadcast information
H04H 60/14 Arrangements for conditional access to broadcast information or to broadcast-related services
H04H 60/15 Arrangements for conditional access to broadcast information or to broadcast-related services on receiving information
H04H 60/16 Arrangements for conditional access to broadcast information or to broadcast-related services on playing information
H04H 60/17 Arrangements for conditional access to broadcast information or to broadcast-related services on recording information
H04H 60/18 Arrangements for conditional access to broadcast information or to broadcast-related services on copying information
H04H 60/19 Arrangements for conditional access to broadcast information or to broadcast-related services on transmission of information
H04H 60/20 Arrangements for conditional access to broadcast information or to broadcast-related services on secondary editing information
H04H 60/21 Billing for the use of broadcast information or broadcast-related information
H04H 60/22 Billing for the use of broadcast information or broadcast-related information per use
H04H 60/23 Arrangements for conditional access to broadcast information or to broadcast-related services using cryptography, e.g. encryption, authentication or key distribution
H04H 60/25 Arrangements for updating broadcast information or broadcast-related information
H04H 60/27 Arrangements for recording or accumulating broadcast information or broadcast-related information
H04H 60/29 Arrangements for monitoring broadcast services or broadcast-related services
H04H 60/31 Arrangements for monitoring the use made of the broadcast services
H04H 60/32 Arrangements for monitoring conditions of receiving stations, e.g. malfunction or breakdown of receiving stations
H04H 60/33 Arrangements for monitoring the users' behaviour or opinions
H04H 60/35 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
H04H 60/37 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying segments of broadcast information, e.g. scenes or extracting programme ID
H04H 60/38 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
H04H 60/39 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space-time
H04H 60/40 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast time
H04H 60/41 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas
H04H 60/42 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas for identifying broadcast areas
H04H 60/43 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas for identifying broadcast channels
H04H 60/44 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas for identifying broadcast stations
H04H 60/45 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying users
H04H 60/46 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for recognising users' preferences
H04H 60/47 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for recognising genres
H04H 60/48 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for recognising items expressed in broadcast information
H04H 60/49 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations
H04H 60/50 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations of broadcast or relay stations
H04H 60/51 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations of receiving stations
H04H 60/52 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations of users
H04H 60/53 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations of destinations
H04H 60/54 Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations where broadcast information is generated
H04H 60/56 Arrangements characterised by components specially adapted for monitoring, identification or recognition covered by groups or
H04H 60/58 Arrangements characterised by components specially adapted for monitoring, identification or recognition covered by groups or of audio
H04H 60/59 Arrangements characterised by components specially adapted for monitoring, identification or recognition covered by groups or of video
H04H 60/61 Arrangements for services using the result of monitoring, identification or recognition covered by groups or
H04H 60/63 Arrangements for services using the result of monitoring, identification or recognition covered by groups or for services of sales
H04H 60/64 Arrangements for services using the result of monitoring, identification or recognition covered by groups or for providing detail information
H04H 60/65 Arrangements for services using the result of monitoring, identification or recognition covered by groups or for using the result on users' side
H04H 60/66 Arrangements for services using the result of monitoring, identification or recognition covered by groups or for using the result on distributors' side
H04H 60/68 Systems specially adapted for using specific information, e.g. geographical or meteorological information
H04H 60/70 Systems specially adapted for using specific information, e.g. geographical or meteorological information using geographical information, e.g. maps, charts or atlases
H04H 60/71 Systems specially adapted for using specific information, e.g. geographical or meteorological information using meteorological information
H04H 60/72 Systems specially adapted for using specific information, e.g. geographical or meteorological information using EPGs [Electronic Programme Guides]
H04H 60/73 Systems specially adapted for using specific information, e.g. geographical or meteorological information using meta-information
H04H 60/74 Systems specially adapted for using specific information, e.g. geographical or meteorological information using meta-information using programme related information, e.g. title, composer or interpreter
H04H 60/76 Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
H04H 60/78 Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by source locations or destination locations
H04H 60/79 Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by source locations or destination locations characterised by transmission among broadcast stations
H04H 60/80 Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by source locations or destination locations characterised by transmission among terminal devices
H04H 60/81 Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
H04H 60/82 Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet
H04H 60/83 Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet accessed over telephonic networks
H04H 60/84 Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet accessed over telephonic networks which are fixed telephone networks
H04H 60/85 Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet accessed over telephonic networks which are mobile communication networks
H04H 60/86 Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet accessed over CATV networks
H04H 60/87 Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet accessed over computer networks
H04H 60/88 Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet accessed over computer networks which are wireless networks
H04H 60/89 Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself the transmission system being the Internet accessed over computer networks which are wired networks
H04H 60/90 Wireless transmission systems
H04H 60/91 Mobile communication networks
H04H 60/92 Wireless transmission systems for local area
H04H 60/93 Wired transmission systems
H04H 60/94 Telephonic networks
H04H 60/95 Wired transmission systems for local area
H04H 60/96 CATV systems
H04H 60/97 CATV systems using uplink of the CATV systems
H04H 60/98 Physical distribution of media, e.g. postcards, CDs or DVDs