| Patents for H04H 20 - Arrangements for broadcast or for distribution combined with broadcast (21,050) |
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| 04/17/1997 | DE19537850A1 Coding appliance for coding or decoding of weather forecasts |
| 04/16/1997 | EP0768768A2 A video-on-demand system |
| 04/16/1997 | EP0768632A2 Radio receiver for road vehicles with RDS decoder for digital signals |
| 04/16/1997 | CN1147892A Method and equipment for transmitting messages to mobile radio stations |
| 04/16/1997 | CN1147733A Descrambler |
| 04/16/1997 | CN1147654A Apparatus and method for executing game program having advertisements therein |
| 04/10/1997 | WO1997013337A1 Transfer of a file group in a digital broadcasting system |
| 04/10/1997 | WO1997013336A1 Handling of program files in a digital broadcasting system |
| 04/10/1997 | WO1997013239A1 Message output controller and system |
| 04/10/1997 | WO1997013207A1 Interactive theater and feature presentation system |
| 04/10/1997 | DE19640867A1 Multiplex radio receiver for Radio Data System |
| 04/10/1997 | CA2233318A1 Message output controller and system |
| 04/09/1997 | EP0767591A2 Error monitoring of video/audio devices |
| 04/09/1997 | EP0767554A2 Receiver with Radio Data System with a supplementary receiver |
| 04/09/1997 | EP0767553A1 Circuit for generating short muting impulses in a car radio receiver |
| 04/09/1997 | EP0382764B1 Signal processing apparatus and methods |
| 04/08/1997 | US5619577 Transmission system, and a transmitter and a receiver for use in such a system |
| 04/03/1997 | WO1997012486A1 Multimedia architecture for interactive advertising |
| 04/03/1997 | WO1997012455A2 Simulcast system having digitized 'clear voice' |
| 04/03/1997 | WO1997012452A1 Radio receiving and transmitting device and method of receiving and transmitting radio signals |
| 04/02/1997 | EP0766468A2 Method and system for inserting a spread spectrum watermark into multimedia data |
| 04/02/1997 | EP0766418A2 Digital satellite broadcasting receiver |
| 04/02/1997 | EP0765547A1 Process for transmitting digital audio data and packet-transmitted complementary data |
| 04/02/1997 | CN1146835A Method and apparatus for AM compatible digital broadcasting |
| 04/01/1997 | US5617411 Method for digital data transmission in the zero symbol of COFDM modulation method |
| 04/01/1997 | US5617331 Integrated video and audio signal distribution system and method for use on commercial aircraft and other vehicles |
| 03/27/1997 | WO1997011558A1 Process for reproducing additional information contained in a television or radio programme signal |
| 03/27/1997 | WO1997011539A2 Method for the common transmission of digital and analogue modulated radio broadcasting and/ or television broadcasting signals |
| 03/26/1997 | EP0764380A2 A two-way multiple access communication system, and a central station and a user station for use in such a system |
| 03/26/1997 | CN2250601Y Multiple stage protective zero line broadcasting device |
| 03/25/1997 | US5615246 Method and apparatus for spurious signal detection and disconnection in a hybrid fiber/coax network architecture |
| 03/25/1997 | US5614940 Method and apparatus for providing broadcast information with indexing |
| 03/20/1997 | WO1997010647A1 Transmission process in which a conversion oscillator signal is synthesised by means of a fractional n-phase-shift control loop |
| 03/20/1997 | DE19534462A1 Übertragungsverfahren Transmission method |
| 03/19/1997 | EP0763910A2 Flexible network termination for high bitrate twinwire-optical fibre systems |
| 03/19/1997 | EP0763291A1 Frequency agile broadband communications system |
| 03/19/1997 | EP0609325B1 Method of transmitting digitized stereophonic sound signals over radio channels subject to interference |
| 03/19/1997 | CN1145565A Apparatus and method for combining high bandwidth and low bandwidth data transfer |
| 03/18/1997 | US5613211 Method of establishing inter base-station synchronization and mobile radio communicaton system using the method |
| 03/18/1997 | US5612749 Apparatus and method for receiving messages from a central transmitter with a television receiver |
| 03/13/1997 | WO1997009827A1 A distribution system |
| 03/13/1997 | WO1997009826A1 A video signal distribution system |
| 03/13/1997 | WO1997009801A1 Audio file distribution and production system |
| 03/13/1997 | WO1997009797A1 Method and apparatus for transporting auxiliary data in audio signals |
| 03/13/1997 | WO1997000564A3 Communication system for superimposing data onto a video signal |
| 03/13/1997 | CA2231239A1 Method and apparatus for transporting auxiliary data in audio signals |
| 03/12/1997 | EP0762755A1 Data transmission device |
| 03/12/1997 | EP0762686A2 System and method for scheduled delivery of a software program over a cable network |
| 03/12/1997 | EP0762682A2 Terminal for receiving digital broadcast signals |
| 03/12/1997 | EP0762681A2 Method and circuit for changing broadcast programmes during short signal interruptions |
| 03/12/1997 | EP0761047A1 Apparatus and method for generating product coupons in response to televised offers |
| 03/12/1997 | EP0761043A1 High performance modem using pilote symbols for equalization and frame synchronization |
| 03/12/1997 | EP0746941A4 Interactive television security through transaction time stamping |
| 03/12/1997 | EP0740884A4 Transaction based interactive television system |
| 03/12/1997 | CN1144996A Broadcast system and method for airport and wharf |
| 03/12/1997 | CN1144995A Honeycomb type radio broadcast system and method |
| 03/11/1997 | US5610985 Digital 3-channel transmission of left and right stereo signals and a center signal |
| 03/11/1997 | US5610916 Shared receiving systems utilizing telephone cables as video drops |
| 03/11/1997 | US5610653 Method and system for automatically tracking a zoomed video image |
| 03/11/1997 | US5609525 Video game data reception apparatus |
| 03/06/1997 | WO1997008866A1 Am compatible digital waveform frame timing recovery and frame synchronous power measurement |
| 03/06/1997 | WO1997008861A1 Apparatus and method for digital data transmission |
| 03/06/1997 | DE19532428A1 Supplementary signal transmission method especially within low frequency transmission channel |
| 03/05/1997 | EP0760584A2 Electrical transmission system with a wide-band distribution system for TV and audio signals and with a possibility for interactive services |
| 03/05/1997 | EP0760563A1 Multiframe structure and handling protocol for a telecommunication network |
| 03/04/1997 | US5608805 Dynamic loader |
| 03/04/1997 | US5608446 Apparatus and method for combining high bandwidth and low bandwidth data transfer |
| 03/04/1997 | US5608428 In a communication circuit |
| 03/01/1997 | CA2184401A1 Multiframe structure and handling protocol for a telecommunication network |
| 02/27/1997 | WO1996038837A3 A vocal information system |
| 02/27/1997 | DE19531121A1 Technical service system with remotely updated system software |
| 02/26/1997 | EP0587655B1 Process for processing and reproducing received, digitally coded audio data and radio receiver for digital audio broadcast data (dab) |
| 02/26/1997 | CN1143882A Programme auto-controller |
| 02/26/1997 | CN1143865A RDS-TMC Broadcast receiver |
| 02/26/1997 | CN1143864A RDS-TMC broadcast receiver |
| 02/25/1997 | US5606726 Receiving unit for a two-way broadcasting system |
| 02/25/1997 | US5606725 Broadband network having an upstream power transmission level that is dynamically adjusted as a function of the bit error rate |
| 02/25/1997 | US5606618 Subband coded digital transmission system using some composite signals |
| 02/20/1997 | WO1997006638A1 Distribution control method of digital audio/video data, distribution apparatus, video selection/distribution apparatus using the same, and channel switch control method and apparatus of digital data |
| 02/19/1997 | CN2247902Y High-frequency stereophonic infrared transmission unit |
| 02/19/1997 | CN1143423A Information transfer method, information carrier, arrangement for transmitting and arrangement for receiving information |
| 02/19/1997 | CN1143299A Presision broadcasting of compound items |
| 02/13/1997 | WO1997002671A3 System for coupling telephony signals transmitted through a broadband communications network to a telephony network interface |
| 02/12/1997 | EP0757878A1 Digital signal divided into self-contained data containers, in particular for data transmission to selective call receivers |
| 02/12/1997 | CN1142717A Apparatus for remedying errors in head end monitoring block, and control method therefor |
| 02/11/1997 | USRE35449 Remote 2-way transmission audience polling and response system |
| 02/11/1997 | US5602580 Video communication controller using FM sideband transmission |
| 02/06/1997 | WO1997004540A1 Automatic land-line backup for synchronisation alignment for simulcast system |
| 02/06/1997 | WO1997004531A1 Low power data receiver combined with audio receiver |
| 02/06/1997 | CA2221742A1 Low power data receiver combined with audio receiver |
| 02/05/1997 | EP0757454A1 Radio Data System - Traffic Message Channel broadcast receiver |
| 02/04/1997 | US5600573 Operations center with video storage for a television program packaging and delivery system |
| 02/04/1997 | US5600473 Optical amplifier systems with add/drop multiplexing |
| 02/04/1997 | US5600378 Logical and composite channel mapping in an MPEG network |
| 02/04/1997 | US5600364 Network controller for cable television delivery systems |
| 01/30/1997 | WO1997003502A1 Digital transmission system, transmitter, receiver, equivalent analog signal, and transmission method |
| 01/30/1997 | WO1996038835A3 Device for generating coded speech items in a vehicle |
| 01/29/1997 | EP0756393A1 Method and means for transmission of multimedia services on a broadband private network |
| 01/29/1997 | EP0756261A1 RDS-TMC radio receiver |
| 01/29/1997 | EP0756260A1 RDS-TMC radio receiver |