| Patents for H04H 20 - Arrangements for broadcast or for distribution combined with broadcast (21,050) |
|---|
| 08/03/1994 | CN1090453A Advanced set top terminal for cable television delivery systems |
| 08/03/1994 | CN1090452A Network controller for cable television delivery systems |
| 08/03/1994 | CN1090451A Digital cable headend for cable television delivery system |
| 08/03/1994 | CN1090444A Interactive nationwide video data service communication system for stationary and mobile battery operated subscriber units |
| 08/02/1994 | US5335357 Simulcast scheduler |
| 08/02/1994 | US5335277 Signal processing appparatus and methods |
| 08/02/1994 | US5334975 Residential time reference system |
| 07/27/1994 | EP0504267B1 Method of evaluating data |
| 07/26/1994 | US5333155 Method and system for transmitting digital audio signals from recording studios to the various master stations of a broadcasting network |
| 07/26/1994 | CA1331053C Cable television system selectively distributing pre-recorded video and audio messages |
| 07/26/1994 | CA1331040C High capacity sectorized cellular communication system |
| 07/21/1994 | WO1994016525A1 Video facility management system |
| 07/21/1994 | WO1994016506A2 Digital broadcasting sharing the channel with an analog fm transmission |
| 07/21/1994 | WO1994016503A1 Apparatus and methods for displaying text in conjunction with recorded audio programs |
| 07/21/1994 | DE4401571A1 Central processing of independent reactions TV and/or radio broadcast signals |
| 07/20/1994 | EP0606943A1 Switching device for switching television signals in a cable distribution system |
| 07/20/1994 | EP0606703A1 Method for surveying a radio or a television audience, carrying programme identification signals in the sound channel |
| 07/20/1994 | EP0606341A1 Method and apparatus for automatically identifying a program including a sound signal |
| 07/20/1994 | EP0606272A1 Simulcast synchronization and equalization system and method therefor |
| 07/20/1994 | EP0606236A1 Simulcast synchronization and equalization system |
| 07/20/1994 | CN1025527C Wire broadcasting method and its system |
| 07/19/1994 | US5331412 For preventing the unauthorized reception of television signals |
| 07/14/1994 | DE4344789A1 Signal detection circuit for broadcast road traffic information |
| 07/13/1994 | EP0605956A1 Digital signal processor delay equalization for use in a common wave paging system |
| 07/13/1994 | EP0605949A2 Functional display apparatus with multicolored buttons |
| 07/07/1994 | WO1994011960A3 Mobile two-way communication system |
| 07/07/1994 | CA2109639A1 Digital signal processor delay equalization for use in a paging system |
| 07/06/1994 | EP0605115A2 Program server for interactive television system |
| 07/06/1994 | EP0604871A1 Method and apparatus for programmable recording |
| 07/05/1994 | US5327581 Method and apparatus for maintaining synchronization in a simulcast system |
| 06/29/1994 | EP0603269A1 Remote link adapter for use in tv broadcast data transmission system |
| 06/23/1994 | WO1994014284A1 Reprogrammable terminal for suggesting programs offered on a television program delivery system |
| 06/23/1994 | WO1994014283A1 Television program delivery system |
| 06/23/1994 | WO1994014282A1 Set top terminal for cable television delivery systems |
| 06/23/1994 | WO1994014281A1 An operation center for a television program packaging and delivery system |
| 06/23/1994 | WO1994014280A1 Network controller for cable television delivery systems |
| 06/23/1994 | WO1994014279A1 Digital cable headend for cable television delivery system |
| 06/23/1994 | WO1994014246A1 Generation of a coherent signal using an adaptive filter for cancelling and synchronous detection in a digital radio receiver |
| 06/23/1994 | DE4242739A1 Radio receiver monitoring system |
| 06/23/1994 | CA2151715A1 Coherent signal generation in digital radio receiver |
| 06/22/1994 | EP0602438A1 RDS broadcast receiver |
| 06/22/1994 | CN1025138C Dynamic callback technique |
| 06/21/1994 | US5323396 Digital transmission system, transmitter and receiver for use in the transmission system |
| 06/21/1994 | CA2020841C Video transmission and control system utilizing internal telephone lines |
| 06/16/1994 | DE4241857A1 Radio receiver with additional data decoder - accepts telephone number data and decodes for entry into telephone unit memory |
| 06/15/1994 | EP0601437A1 Method for compatible transmission and/or decoding and storage of an auxiliary signal |
| 06/15/1994 | EP0501992B1 Communications system |
| 06/15/1994 | CN1088036A Digital simulcast transmission system |
| 06/09/1994 | WO1994013107A1 Advanced set top terminal for cable television delivery systems |
| 06/09/1994 | DE4341116A1 System und Verfahren zur automatischen Einstellung von Rundfunkkanälen System and method for automatic adjustment of broadcast channels |
| 06/09/1994 | CA2345161A1 Advanced set top terminal for cable television delivery systems |
| 06/08/1994 | EP0600193A2 Method for broadcasting digital data, especially towards mobile stations, with a high bit rate, with time-frequency interweaving and analogous synchronisation |
| 06/08/1994 | EP0600067A1 Delayed accessing method and system for broadcast information |
| 06/08/1994 | EP0600043A1 System for short-range transmission of signals over the air using a high frequency carrier |
| 06/07/1994 | US5319716 Wireless CD/automobile radio adapter |
| 06/01/1994 | EP0599825A2 Digital transmission system for transmitting an additional signal such as a surround signal |
| 06/01/1994 | EP0599824A2 Intensity-stereo encoding and decoding in a transmission system |
| 06/01/1994 | EP0293464B1 Process for transmitting and/or evaluating on the receiver side information inside a radio signal |
| 06/01/1994 | DE4239759A1 Switching to receivable alternative frequency of RDS receiver - switching reception frequency from instantaneous one to that of another station, when changeover condition exists |
| 06/01/1994 | DE4239758A1 Automatic interference signal suppression in FM receiver - reducing IF band width in dependence on degree of interference outside useful information channel |
| 05/26/1994 | WO1994011989A1 Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto |
| 05/26/1994 | WO1994011960A2 Mobile two-way communication system |
| 05/26/1994 | WO1994011954A1 Fm radio system using time shared wide sca band for digital data |
| 05/26/1994 | DE4309504A1 Interactive information system for bidirectional communications - has separate transmission channels from and to TV transmitter and terminal respectively |
| 05/26/1994 | DE4236386C1 Monitoring FM radio transmitter - detecting mean power level of modulation multiplex signal to prevent over-modulation |
| 05/25/1994 | CN1024738C Satellite TV communication system for audience polling and processing answers |
| 05/24/1994 | US5315583 Method and apparatus for digital audio broadcasting and reception |
| 05/24/1994 | US5315444 Cassette autochanger systems |
| 05/24/1994 | US5315300 AES/EBU C block generator |
| 05/19/1994 | DE4238373A1 Radio receiver demodulator for radio data signals |
| 05/19/1994 | DE4237987A1 Vehicle RDS and traffic message channel receiver - receives and decodes RDS and TMC data, and provides pictogram display on LCD or HUD |
| 05/18/1994 | EP0597649A2 High efficiency coding method and apparatus |
| 05/18/1994 | EP0597255A1 Receiver for digital audio broadcast with digital signal processing |
| 05/18/1994 | EP0597084A1 Method and apparatus for maintaining synchronization in a simulcast system |
| 05/17/1994 | US5313297 System for providing pictures responding to users' remote control |
| 05/11/1994 | WO1994010803A1 Interactive nationwide data service communication system for stationary and mobile battery operated subscriber units |
| 05/11/1994 | WO1994010775A1 A multiplex control packet for digital services |
| 05/11/1994 | WO1994010771A1 Simultaneous transmission of audio and data signals |
| 05/11/1994 | WO1994010768A1 Arrangement in mobile telecommunications systems for providing for synchronization of the transmitters of the base stations |
| 05/11/1994 | WO1994010761A1 Apparatus and methods for music and lyrics broadcasting |
| 05/11/1994 | WO1994010758A1 Process for transmitting and/or storing digital signals from several channels |
| 05/11/1994 | DE4237366A1 Digital audio signal transmitter serving several programme- presenting stations - each allocated to DSR receiver, using received DSR clock pulse signal for synchronisation of digital audio signals |
| 05/11/1994 | CN1086647A Method and apparatus for coordinating clocks in a simulcast network |
| 05/11/1994 | CA2148270A1 A multiplex control packet for digital services |
| 05/11/1994 | CA2147837A1 Interactive nationwide data service communication system for stationary and mobile battery operated subscriber units |
| 05/11/1994 | CA2146878A1 Apparatus and methods for music and lyrics broadcasting |
| 05/11/1994 | CA2145998A1 Arrangement in mobile telecommunications systems for providing for synchronization of the transmitters of the base stations |
| 05/05/1994 | DE4236989A1 Verfahren zur Übertragung und/oder Speicherung digitaler Signale mehrerer Kanäle Method for the transmission and / or storage of digital signals of multiple channels |
| 05/04/1994 | EP0595314A1 Tuning method for a radio receiver |
| 05/04/1994 | EP0594919A1 A system for transmitting digital signals over video signals, for instance for detecting the broadcast of television programs |
| 04/28/1994 | DE4334931A1 Empfänger Receiver |
| 04/28/1994 | DE4235909A1 Mono to stereo changeover switch - has differential amplifier with transistor whose base is supplied with voltage lying between lower and upper levels of pulse signal |
| 04/27/1994 | EP0594495A1 Driving aid method and device by reception and processing of traffic information |
| 04/27/1994 | EP0594350A1 Interactive television multicasting |
| 04/27/1994 | CN1086062A Medium-wave single side band amplitude-modulated stereosonic broadcasting system |
| 04/21/1994 | DE4234603A1 RDS demodulator and error-corrector - delays received signals, demodulates and corrects errors according to threshold cross-over of demodulated signals |
| 04/20/1994 | CN1085709A Method and system for transmiting of audio signals and computer data |
| 04/14/1994 | DE4313107C1 Audio and/or video transmission identification - using identification information separated from received transmission at reception side. |
| 04/14/1994 | DE4234033A1 Transmitting information for educational purposes - using stereo audio transmitter and receiver to transmit audio signals over first channel and data signals over second channel |
| 04/13/1994 | EP0592209A1 Method of establishing interbase-station synchronisation and mobile radio communication system using the method |