Patents
Sitemap › H04 - Electric communication technique › H04H - Broadcast communication › H04H 20 - Arrangements for broadcast or for distribution combined with broadcast
Patents for H04H 20 - Arrangements for broadcast or for distribution combined with broadcast (21,050)
11/2000
11/30/2000WO2000072309A1 Decoding of information in audio signals
11/30/2000WO2000072164A1 Method and apparatus for synchronizing the broadcast content of interactive internet-based programs
11/30/2000CA2341229A1 Method and apparatus for synchronizing the broadcast content of interactive internet-based programs
11/29/2000EP1055176A2 Access control system
11/29/2000EP0788713B1 System and method for verification of electronic television program guide data
11/29/2000CN1275269A Storage-type data receiver
11/29/2000CN1275029A Digital broacasting system for user while requiring service in period of validity and control method thereof
11/29/2000CN1275028A Method and apparatus for controlling application program operation time in digital broadcasting system
11/29/2000CN1059060C Method for tuning receiver and receiver using the same
11/28/2000US6154649 Broadcast receiver with integrated telephone unit
11/28/2000US6154632 Picture distribution service system
11/28/2000US6154204 Tap antenna unit
11/25/2000CA2308821A1 Playing audio of one kind in response to user action while playing audio of another kind
11/23/2000WO2000070783A1 Interactive participation system for audience
11/23/2000DE19957926A1 Interactive radio with combined receiver and transmitter, e.g. for ordering products
11/23/2000DE19922608A1 Wireless emergency signal transmission, especially to or between vehicles, involves using predefined coded RDS format message at low power in VHF radio band, preferably using free frequency
11/22/2000EP1054564A2 Receiving apparatus and method, broadcasting apparatus and method, information processing apparatus and method, biderectional communication system and method, and providing media
11/22/2000CN2407517Y FM synchronous mark synthesizer
11/22/2000CN1274508A Information transmission system
11/22/2000CN1274495A System and method for mitigating intermittent interruptions in audio radio broadcast system
11/21/2000US6151634 Audio-on-demand communication system
11/21/2000US6151578 System for broadcast of data in an audio signal by substitution of imperceptible audio band with data
11/21/2000US6151369 Digital broadcast receiver
11/21/2000CA2164896C Context-based transactions using broadcast advertising
11/16/2000WO2000069101A1 Radio device for receiving and/or transmitting audio information over the internet
11/16/2000WO2000069100A1 In-band on-channel system and method for bit-rate reduction of the digital signal by utilising properties of the analog signal
11/16/2000WO2000041503A3 A multi-user method and system
11/15/2000CN2406421Y Frequency-modulation synchronous broadcasting network transmitter
11/15/2000CN1273743A System for selectively downloading information at user terminals from the internet using satellite broadcast system
11/15/2000CN1273465A Method and system for extending broadcast cover in single frequency network
11/14/2000US6148008 Apparatus for receiving broadcasting signals
11/14/2000US6148003 Information distribution system
11/14/2000US6147593 Message output controller and system
11/14/2000CA2212762C Programmable radio subscription system for receiving selectively defined information
11/14/2000CA2150539C Audience measurement system
11/08/2000EP1050984A1 Alternative frequency strategy for DRM
11/08/2000EP1050111A1 Intelligent radio
11/08/2000EP0761043A4 High performance modem using pilote symbols for equalization and frame synchronization
11/08/2000CN1272981A Method and device for reserving resources one or more multiple access communication channels
11/07/2000US6144707 Apparatus for receiving broadcasting signals
11/07/2000US6144705 Technique for simultaneous communications of analog frequency-modulated and digitally modulated signals using precanceling scheme
11/07/2000US6144702 Audio and video transmission and receiving system
11/02/2000WO2000065755A2 Quality control method for digital radio transmissions in the medium and short wave range
11/02/2000WO2000065536A1 Method for compensating the digital watermarking distortion on a multimedia signal
11/02/2000EP1049284A2 Multiresolution transmission with multicarrier signals
11/02/2000EP1049283A2 Multiresolution transmission with multicarrier signals
11/02/2000EP1049282A2 Multiresolution modulation with multicarrier signals
11/02/2000EP1049277A2 Receiver for receiving a broadcasting signal comprising supplementary information, the receiver comprising a display means for displaying the supplementary information
11/02/2000EP1049028A2 Efficient distribution of information to the end-user
11/02/2000EP1048136A1 Interactive digital radio broadcasting system
11/02/2000CA2367467A1 Method for compensating the digital watermarking distortion on a multimedia signal
11/01/2000CN1272276A Method and apparatus for facilitating establishment of communications in messaging system
11/01/2000CN1272272A System for providing contents
11/01/2000CN1272007A Receiver used in receiving broadcast signal
10/2000
10/31/2000CA2106222C Object oriented communication network
10/26/2000WO2000027135A3 Mobile wireless internet portable radio
10/26/2000DE19918829A1 Quality control method for digital radio broadcasting transmission by correcting bit error below threshold
10/25/2000EP1046249A1 Method for interactive telecommunication
10/25/2000EP0920739A4 Method and apparatus for providing control channel communications for an information distribution system
10/25/2000CN1271128A Event controller and digit broadcasting system
10/19/2000DE19916656A1 Traffic information device has portable transmitter of information required for generation of digitally encoded traffic messages containing road number and possibly direction of travel, diversions
10/19/2000DE19857888A1 Digital audio broadcasting receiver controls DAB and RDS for receiving units so that they receive programs with corresponding program identifier with switch which is changed over through control unit quality
10/18/2000EP1045541A2 Multiresolution transmission and error correction coding with multicarrier signals
10/18/2000EP1045305A2 Event control device and digital broadcasting system
10/18/2000EP1044523A1 Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
10/18/2000EP0740865B1 Process and receiver for finding the receivability of radio signals in a radio system
10/17/2000US6134531 Method and apparatus for correlating real-time audience feedback with segments of broadcast programs
10/17/2000US6134419 Transmodulated broadcast delivery system for use in multiple dwelling units
10/17/2000CA2218039C An adaptor card providing conditional access
10/17/2000CA2189488C Digital audio system with video output program guide
10/12/2000WO2000060784A1 Method and apparatus for remote update of clients by a server via broadcast satellite
10/12/2000WO2000060778A1 Systems and methods for spread spectrum communication of supplemental information
10/12/2000WO2000060746A2 Matrixing for losseless encoding and decoding of multichannels audio signals
10/12/2000CA2742649A1 Matrix improvements to lossless encoding and decoding
10/12/2000CA2385088A1 Systems and methods for spread spectrum communication of supplemental information
10/11/2000EP1043896A2 Conditional access system of CATV
10/11/2000EP1043895A2 Conditional access system of CATV
10/11/2000EP1043842A1 Storage-type data receiver
10/11/2000EP1042929A1 Information transmission method
10/11/2000CN1269931A Apparatus and method for supporting use of multiple modulation system simultanesouly on terrestrial distribution networks
10/10/2000US6131160 Method and apparatus for an adapter card providing conditional access in a communication system
10/10/2000US6130986 Data transmitting apparatus
10/10/2000US6130898 Simulcasting digital video programs for broadcast and interactive services
10/05/2000WO2000059236A1 Providing warning signals of graphic granularity
10/05/2000WO2000059120A1 Arrangement for receiving radio by internet
10/05/2000WO2000058749A1 Mobile radio receiver
10/04/2000EP1041766A2 Apparatus for communicating multiple digital representations of a signal
10/04/2000EP1041758A2 Method and system for extending broadcast coverage on a single frequency network
10/04/2000EP1041756A2 Multistream-in-band-on-channel transmission system
10/04/2000EP1041755A2 Method for transmitting and processing traffic information
10/04/2000EP1040610A1 Method and apparatus for simultaneous transmission of digital telephony and analog video using wave division multiplexing
10/04/2000CN1269099A Water-mark detection
10/04/2000CN1269098A Detection and sysetm for watermark
10/04/2000CN1268846A Receiving device, receiving method and medium therefor
10/04/2000CN1268820A Broadcast receiving transmitting device and mode therefor
10/04/2000CN1268713A Searching system, search device and method and input device and method
10/03/2000US6128483 Simultaneous over the air data download to multiple radios
10/03/2000US6128390 Data processor for FM multiplex broadcast
10/03/2000US6128334 Receiver addressable AM compatible digital broadcast system
10/03/2000CA2186220C Apparatus and method for integrating downstream data transfer over a cable television channel with upstream data carried by other media
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