Patents
Patents for H04H 20 - Arrangements for broadcast or for distribution combined with broadcast (21,050)
09/1996
09/19/1996WO1996028904A1 Simulcasting digital video programs for broadcast and interactive services
09/19/1996WO1996028903A1 Simulcasting digital video programs for broadcast and interactive services
09/19/1996WO1996028902A1 Shared receiving systems utilizing telephone cables as video drops
09/18/1996EP0732821A2 Method for retrieving information concerning current radio and television broadcasts
09/18/1996EP0732030A1 An operations center with video storage for a television program packaging and delivery system
09/18/1996EP0732017A1 System and method for transmitting and receiving variable length authorization control for digital services
09/18/1996EP0673565B1 Generation of a coherent signal using an adaptive filter for cancelling and synchronous detection in a digital radio receiver
09/18/1996CN1131490A High speed simulcast system using adaptive compensation
09/17/1996US5557541 Apparatus for distributing subscription and on-demand audio programming
09/17/1996US5557442 Optical amplifiers with flattened gain curves
09/17/1996US5557334 Apparatus for tracking the flow of video signals by incorporating patterns of machine readable signals which will appear at predetermined locations of a television picture
09/17/1996US5557300 For a controller
09/12/1996WO1996027958A1 A method for transmission and a device for reception of information
09/12/1996WO1996027952A1 Dual channel fm receiver with on demand information services
09/12/1996DE19600860A1 Recording and reproduction system for video, audio, and television equipment
09/12/1996DE19513005A1 Combined audio, display and radio digital data utilisation radio receiver appts.
09/12/1996DE19508610A1 Radio transmission method
09/12/1996DE19507568A1 Satellite signal receiving apparatus
09/12/1996CA2214716A1 Dual channel fm receiver with on demand information services
09/11/1996EP0731619A2 Broadband communication system and method
09/11/1996EP0731575A2 A method to generate and to transfer a hyper-text document and a hyper-media service to a mobile digital audio receiver
09/11/1996EP0731574A2 Method and means for digital data broadcast
09/11/1996EP0731572A2 Radio station tuning system
09/11/1996EP0730802A1 System and method for simultaneously authorizing multiple virtual channels
09/11/1996EP0730800A1 Process and circuit for distributing information on broadcast programmes, preferably in wideband automatic telecommunications networks
09/11/1996EP0730796A1 Apparatus and methods for displaying text in conjunction with recorded audio programs
09/11/1996EP0609300B1 Process for transmitting or storing over disturbed channels a digitalized, encoded audio signal composed of a series of information blocks
09/10/1996US5555310 Stereo voice transmission apparatus, stereo signal coding/decoding apparatus, echo canceler, and voice input/output apparatus to which this echo canceler is applied
09/10/1996US5555118 Method for removing and inserting optical carriers in a WDM optical communication system
09/10/1996US5555024 Transmitters for burying digital signals within the trace and retrace intervals of NTSC television signals
09/06/1996WO1996027248A1 Voice messaging system and method making efficient use of orthogonal modulation components
09/03/1996US5553313 Method for detecting information in a RDS data flow
08/1996
08/29/1996WO1996019785A3 Method of and receiver for processing and reproducing a message
08/29/1996WO1996019052A3 Circuit array and process for creating a data feedback channel from receiver to transmitter in a common frequency network
08/29/1996DE19602715A1 Low frequency data transmission systems for radio data system
08/28/1996EP0729280A2 Transmission monitoring system and method for testing the transmission quality
08/28/1996EP0729246A1 Receiver for multiplex broadcasting
08/28/1996EP0728388A1 Single frequency transmission network
08/27/1996US5550863 Audio and video transmission and receiving system
08/27/1996US5550825 Headend processing for a digital transmission system
08/22/1996WO1996025820A1 A system for encoding and decoding video signals for identification, distribution and/or control
08/22/1996WO1996025815A1 System for transmitting a packetized message, transmitter and receiver for use in such a system, and methods of transmitting and receiving a packetized message
08/22/1996WO1996025789A1 Amplitude and phase error normalization of subcarrier generator
08/21/1996EP0727114A1 Music playing device for a motor vehicle
08/21/1996EP0654201B1 Process and device for a microcellular common-channel radio system
08/20/1996US5548828 RDS audio receiver having interrupt mode
08/20/1996US5548323 Multiple input processor for cable television head end controller
08/20/1996EP0746942A4 Downstream control of electronic billboard
08/18/1996CA2169693A1 Wireless coupled adapter for decoding information from a broadcast signal to which a radio is tuned
08/15/1996WO1996025006A1 Interactive broadcasting system
08/15/1996WO1996024991A1 Remote listenership monitoring system
08/14/1996EP0726660A1 FM receiver receiving supplementary data in a broadcast programme with data storage and display means
08/14/1996CN1129051A Multiplex receiver and multiplex receiving system broadcasting
08/08/1996DE19502923A1 Reproducing additional information contained in television or radio programme signal
08/08/1996DE19502359A1 Radio receiver with facility to receive radio data signals
08/07/1996EP0725522A2 Method for combined transmission of digital source and control data between data sources and sinks linked by data transmission lines
08/07/1996EP0725505A1 Broadcast receiver for receiving, managing and displaying digitally coded traffic information
08/07/1996EP0725504A2 Radio data system receiver with a means for displaying digitally coded traffic information
08/07/1996EP0725503A1 Method for receiving and outputting broadcast programmes with supplementary digital information and broadcast receiver for displaying digital information of other broadcast programmes
08/07/1996EP0725502A2 Method for decoding and displaying received digitally coded traffic broadcast information
08/07/1996EP0725501A1 Means for audible presentation of digitally coded traffic information using a speech synthesizer
08/07/1996EP0725500A2 Means for managing digitally coded traffic messages in broadcast receivers
08/07/1996CN1128599A Interactive communications system with data distribution
08/07/1996CN1128595A Method and apparatus for uniquely encrypting a plurality of services at a transmission site
08/06/1996US5544198 Procedure for the identification of transmitter or region in common-wave broadcasting networks
08/06/1996US5544161 ATM packet demultiplexer for use in full service network having distributed architecture
08/06/1996US5543856 System and method for downstream application and control electronic billboard system
08/01/1996DE19502922A1 Reproduction of additional information in TV signal
08/01/1996DE19502921A1 Reproduction of additional information in TV signal
07/1996
07/31/1996EP0723729A1 Simulcast of interactive signals with a conventional video signal
07/30/1996US5542119 Method for selecting a highest quality signal for retransmission by base sites in a simulcast communication system
07/30/1996US5542099 Simulcast group determination of best signal
07/30/1996US5541980 Cordless telephone/radio-monitoring system
07/30/1996US5541757 Optical fiber cable service system provided with video on demand service
07/24/1996EP0723373A2 Decryptor
07/24/1996EP0723372A2 Data receiving-processing apparatus and method, and broadcasting method
07/24/1996EP0497769B1 System with compact spectrum
07/23/1996US5539829 Subband coded digital transmission system using some composite signals
07/23/1996US5539822 System and method for subscriber interactivity in a television system
07/23/1996US5539635 Radio station program identifier and distribution system
07/17/1996EP0722239A2 Data communication method and apparatus for requesting and responding to information
07/16/1996US5537685 Method of establishing inter-base-station synchronization and mobile radio communication system using the method
07/16/1996US5537637 Medium-frequency radio broadcasting retransmission system for confined and electromagnetically shielded areas
07/16/1996US5537398 Apparatus for multi-rate simulcast communications
07/16/1996US5537141 Distance learning system providing individual television participation, audio responses and memory for every student
07/11/1996WO1996021321A1 Virtual reality television system
07/11/1996WO1996021293A1 Method for the dynamic reconfiguration of a time-interleaved signal, and corresponding receiver and signal
07/11/1996WO1996021291A1 Method and apparatus for improving am compatible digital broadcast analog fidelity
07/11/1996WO1996021290A1 Audio signal identification using digital labelling signals
07/11/1996WO1996021287A1 Transmitting and displaying on a receiver information describing broadcast programs
07/11/1996WO1996021284A1 A system for identifying and responding to different broadcast programs
07/11/1996DE4444889C1 Verfahren und Schaltungsanordnung zur Realisierung eines Rückübertragungskanals vom Empfänger zum Sender in einem Gleichwellennetz Method and circuit for implementing a feedback channel from the receiver to the transmitter in a single frequency network
07/11/1996CA2209621A1 Audio signal identification using digital labelling signals
07/11/1996CA2209142A1 Transmitting and displaying on a receiver information describing broadcast programs
07/10/1996EP0720798A1 High speed simulcast system using adaptive compensation
07/10/1996EP0627138B1 Demodulator for radio data signals
07/09/1996US5535229 Digital data transfer system for use especially with advertisement insertion systems
07/09/1996US5535215 Method and apparatus for providing control channels and message channels in a radio communication system
07/09/1996US5534933 Apparatus for processing NTSC TV signals having digital signals on quadrature-phase video carrier
07/09/1996US5534913 Apparatus and method for integrating downstream data transfer over a cable television channel with upstream data carrier by other media