| Patents for H04H 20 - Arrangements for broadcast or for distribution combined with broadcast (21,050) |
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| 05/12/1992 | CA1300736C Hospital digital data transfer system |
| 05/06/1992 | EP0484246A1 High speed method for searching an alternative frequency in a radio system |
| 05/06/1992 | CN1060941A Electrical net work broadcasting method |
| 05/05/1992 | CA1300239C Broadband local area network |
| 05/05/1992 | CA1300236C Frequency, phase and modulation control system which is especially useful in simulcast transmission systems |
| 04/30/1992 | WO1992007435A1 Digital audio broadcasting system |
| 04/28/1992 | US5109542 AM-FM combined stereo receiver |
| 04/28/1992 | US5109414 Signal processing apparatus and methods |
| 04/22/1992 | EP0481821A2 Method and apparatus for determining phase correlation of a stereophonic signal |
| 04/22/1992 | CN2102588U Electric network frequency modulated carrier, wireless amplitude modulation radio cassette recorder |
| 04/14/1992 | US5105439 Delay equalization detector |
| 04/08/1992 | EP0479691A1 Method for realizing virtual interactivity between an individual and a data carrier |
| 04/08/1992 | EP0478615A1 Polyphonic coding. |
| 04/07/1992 | US5103480 FMX identification signal detection apparatus |
| 04/05/1992 | CA2051961A1 Method for implementing a virtual interactivity between and individual and an information medium |
| 04/01/1992 | EP0477390A2 Method for controlling a transmitter station as well as a device for carrying out the method |
| 03/31/1992 | US5101267 Wide area real-time T-V audience polling system with local area stations linked by satellite |
| 03/26/1992 | DE4030147A1 Traffic information broadcasting providing continuing availability - using small electronic memory chips in which decoded messages are updated continuously for recall on demand |
| 03/25/1992 | EP0476826A2 A method of selecting receiving frequency for RDS receiver |
| 03/24/1992 | US5099319 Video information delivery method and apparatus |
| 03/18/1992 | EP0439515A4 Improved simulcast broadcasting system and method |
| 03/15/1992 | WO1992005550A1 Encoding system |
| 03/15/1992 | CA2088780A1 Encoding system |
| 03/11/1992 | CN1059436A Wire broadcasting method and its system |
| 03/10/1992 | CA1297157C Closed loop, programmable power and communication system |
| 03/04/1992 | EP0472581A1 Portable personal reception and display device for information transmitted via radio, combined with a watch |
| 03/03/1992 | US5093786 Remote response system |
| 02/25/1992 | US5091936 System for communicating television signals or a plurality of digital audio signals in a standard television line allocation |
| 02/19/1992 | EP0471412A2 Receivers for frequency modulated transmissions |
| 02/13/1992 | DE4024132A1 Radio data system receiver - has data processor with fault checking device incorporating data block memory |
| 02/11/1992 | US5088108 Cellular digital mobile radio system and method of transmitting information in a digital cellular mobile radio system |
| 02/05/1992 | EP0469341A2 Broadcast receiver with a radio data signal decoder |
| 02/05/1992 | EP0382764A4 Signal processing apparatus and methods |
| 01/09/1992 | WO1992000654A1 A method for encoding and broadcasting information about live events using computer simulation and pattern matching techniques |
| 01/09/1992 | WO1992000633A1 Optimal signal synthesis for distortion cancelling multicarrier systems |
| 01/09/1992 | DE4020932A1 Verfahren zum uebertragen einer sich zeitlich aendernden stellgroesse A method for wear by a temporally unchanging manipulated variable |
| 01/09/1992 | DE3645150C2 Broadcasting digital stereophonic audio signals |
| 01/08/1992 | EP0464328A2 Multivoice broadcast search method and apparatus in NICAM broadcasting receiver |
| 01/07/1992 | CA1294003C Am stereo receiver |
| 01/02/1992 | DE4020690A1 Car radio receiving traffic information - performs automatic recording of received traffic information in response to identification signal |
| 12/31/1991 | WO1992000637A1 Process for transmitting a time-variable control parameter |
| 12/31/1991 | US5077827 Warning receiver readiness monitoring circuit |
| 12/31/1991 | US5077759 Phase adjusting system for a radio communication system |
| 12/31/1991 | CA2084791A1 Process for transmitting a time-variable control parameter |
| 12/27/1991 | EP0462341A1 A synchronous frequency modulated booster system |
| 12/27/1991 | EP0462191A1 Broadcast receiver, in particular for vehicles. |
| 12/26/1991 | WO1991020081A1 Digital medium providing information per still-frame |
| 12/18/1991 | EP0461436A1 Method for selective call transmission and call receiver for carrying out the method |
| 12/18/1991 | EP0383775A4 A pay per view entertainment system |
| 12/17/1991 | US5073931 System and individual device for participation in a broadcast program |
| 12/04/1991 | EP0459360A2 RDS broadcast receiver with a device for searching for currently receivable alternative frequencies |
| 12/04/1991 | CN1056787A Cable television radio frequency subscriber data transmission apparatus and calibration method |
| 12/03/1991 | US5070404 Method and apparatus for contemporaneous delivery of data |
| 11/26/1991 | US5068733 Multiple access television |
| 11/20/1991 | CN1014856B Fm stereophonic system having improved compatibility in presence of multipath |
| 11/14/1991 | DE4029583A1 On-board recording and playback appts. for motor vehicle - has auxiliary receiver with digital memory storage of traffic news message |
| 11/12/1991 | US5065452 Digital traffic news evaluation method |
| 11/12/1991 | US5065450 Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system |
| 11/05/1991 | US5063610 Broadcasting system with supplemental data transmission and storage |
| 10/24/1991 | DE4012657A1 Satellite reception dish - has distribution cable with respective outputs for each carrier frequency |
| 10/22/1991 | US5060240 Simulcast system and channel unit |
| 10/15/1991 | US5057915 System and method for attracting shoppers to sales outlets |
| 10/09/1991 | EP0450631A2 Automatic commercial message recognition device |
| 10/09/1991 | EP0450471A2 Editing apparatus |
| 10/08/1991 | US5056138 Television selection system |
| 10/02/1991 | EP0449632A2 Matrix switcher apparatus |
| 10/02/1991 | EP0449607A1 Cassette autochanger |
| 10/02/1991 | EP0449552A2 System for distributing broadcasting material |
| 10/01/1991 | US5054113 Communication system with bit sampling method in portable receiver for simulcast communication |
| 10/01/1991 | US5054070 Stereo signal communication system and method |
| 09/25/1991 | EP0448150A2 Compatible quadrature amplitude modulated signal detector |
| 09/25/1991 | EP0448144A2 Signal processing circuit |
| 09/25/1991 | EP0380475A4 Fm communications system with improved response to rayleigh-faded received signals |
| 09/21/1991 | WO1991015063A1 Cable television radio frequency subscriber data transmission apparatus and calibration method |
| 09/21/1991 | CA2078548A1 Cable television radio frequency subscriber data transmission apparatus and calibration method |
| 09/20/1991 | WO1991015061A1 A method for synchronizing the transmissions in a simulcast transmission system |
| 09/18/1991 | EP0446985A1 Method of transmitting radio data system signals with traffic program identification and receiver for such radio data system signals |
| 09/12/1991 | DE4006933A1 Universal decoder for program-accompanying data - is of modular type usable in VHF and TV receivers for wide range evaluation |
| 09/12/1991 | DE4006931A1 Modular radio receiver for program-accompanying data - selects and processes for decoding RDS, NICAM, D2-MAC etc. data |
| 09/12/1991 | DE4006930A1 Communication signal reception system - has VHF or TV receiver including audio cassette part with incorporated or added decoder |
| 09/12/1991 | DE4006927A1 Remote control system accompanying program - has receiver with decoder enabling individual control signals sent with program to be acted upon |
| 09/11/1991 | EP0445885A1 Receiver with means for acquisition and comparison of identification data of two transmission channels |
| 09/04/1991 | EP0445027A1 Method for synchronizing of transmitters in a radio broadcast network |
| 09/04/1991 | CN1054343A Equipment and method for modulation-carrier communication |
| 09/03/1991 | US5046128 Frequency equalized simulcast broadcasting system and method |
| 09/03/1991 | US5046124 Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system |
| 08/28/1991 | EP0443933A1 Method for the insertion of sound messages in locally broadcast programmes |
| 08/28/1991 | EP0443501A2 RDS broadcast receiver with a device for accelerated seeking of alternative frequencies |
| 08/28/1991 | EP0443436A2 Method for selecting a broadcast programme |
| 08/28/1991 | EP0443187A2 Radio data transmission system for vehicule as well as radio transmitter-receiver of a motor vehicle automobile |
| 08/22/1991 | WO1991012674A1 Process for radio transmission of a time-variant control signal and for receiving such a control signal |
| 08/22/1991 | DE4005445A1 Car warning signal generator on aerial - provides warning signal with clear text, repeated cyclically on selected frequency in relevant frequency region |
| 08/22/1991 | DE4005413A1 Radio data system car radio - has central microprocessor, comparing PI code reception frequency with EEPROM combined PI code |
| 08/22/1991 | DE4005397A1 Car radio data transmission system - has transmission channels allocated to preset geographic directions of car travel |
| 08/22/1991 | DE4004987A1 Station selection in RDS system - using non-volatile memories to store program frequency and reception quality information |
| 08/21/1991 | EP0441851A1 Satellite radio receiver |
| 08/21/1991 | EP0290581B1 Process for transmitting digital audio-signals |
| 08/21/1991 | CN1053983A Common frequency source synchronous broadcast of mw, sw, fm and tv realized with tv signals |
| 08/07/1991 | EP0439515A1 Improved simulcast broadcasting system and method |
| 08/07/1991 | CN2082490U Automatic transferring device of delivery wire of telephone and broadcast |