| Patents for H04H 20 - Arrangements for broadcast or for distribution combined with broadcast (21,050) |
|---|
| 06/15/1993 | US5220419 Automatic RF leveling in passenger aircraft video distribution system |
| 06/10/1993 | WO1993011637A1 Rf broadcast and cable television distribution system and two-way rf communication |
| 06/10/1993 | WO1993011635A1 Multiple media delivery network method and apparatus |
| 06/10/1993 | WO1993011617A1 Compressed digital data interactive television system |
| 06/10/1993 | WO1993011616A1 Digital data transmission process in the null symbol of a cofdm modulation process |
| 06/09/1993 | EP0545245A2 Digital oscillator |
| 06/08/1993 | US5218717 Simulcast transmission system with improved synchronizing system |
| 06/08/1993 | US5218714 CATV repeating amplifier circuitry |
| 06/08/1993 | US5218621 Adaptive digital equalization filter |
| 06/07/1993 | WO1993011614A1 Technique for measuring channel delay |
| 06/01/1993 | US5216717 Frequency modulation broadcast transmitter synchronization method |
| 06/01/1993 | CA2007012C Simulcast system and channel unit |
| 05/27/1993 | WO1993010606A1 Headend processing for a digital transmission system |
| 05/27/1993 | WO1993010605A1 Transaction based interactive television system |
| 05/27/1993 | DE4138770A1 Verfahren zur digitalen datenuebertragung im nullsymbol des cofdm-modulationsverfahrens Method for digital data transmission in the zero symbol of cofdm-modulation procedure |
| 05/27/1993 | CA2123778A1 Headend processing for a digital transmission system |
| 05/26/1993 | CN1072548A Coding method for broadcast transmissions |
| 05/25/1993 | US5214792 Broadcasting system with supplemental data transmission and storge |
| 05/25/1993 | US5214787 Multiple audio channel broadcast system |
| 05/25/1993 | US5214705 Circuit and method for communicating digital audio information |
| 05/25/1993 | US5214505 Automatic rf equalization in passenger aircraft video distribution system |
| 05/19/1993 | CN1072300A Radio broadcast transmission system and radio broadcast receiver |
| 05/18/1993 | US5212807 Method of automatic path map generation for simulcast transmission system |
| 05/18/1993 | US5212551 Method and apparatus for adaptively superimposing bursts of texts over audio signals and decoder thereof |
| 05/13/1993 | WO1993009644A1 Process for reducing data in the transmission and/or storage of digital signals from several dependent channels |
| 05/13/1993 | WO1993009631A1 Information broadcasting system and method |
| 05/13/1993 | WO1993009616A1 Coding method for broadcast transmissions |
| 05/13/1993 | DE4137000A1 Field strength dependent signal evaluating method for car radio - comparing obtained field strength profile with stored field strength profile held in memory to read out associated information |
| 05/13/1993 | DE4136802A1 Car radio with receiver for traffic signals - has additional speech memory with interrogator of spoken messages |
| 05/11/1993 | US5210611 Automatic tuning radio/TV using filtered seek |
| 05/06/1993 | DE4136068A1 Radio broadcast transmission system for VHF-FM and-or AM signals - uses transmitted control signal for reception of both digital audio broadcasting signal or digital satellite radio signal |
| 05/06/1993 | DE4135747A1 Multichannel sound signal transmission procedure with interference correction - using introduced time difference between transmitted signal preceded by defined phase difference used to provide matrix signals |
| 05/05/1993 | EP0540329A2 Method for storing a multichannel audio signal on a compact disc |
| 05/05/1993 | EP0539799A2 Main station for satellite receiving installation |
| 05/05/1993 | EP0539708A2 Broadcast receiver, in particular vehicle receiver |
| 05/04/1993 | US5208665 Presentation player for an interactive digital communication system |
| 05/04/1993 | CA1317368C Direct broadcast satellite signal transmission system |
| 04/29/1993 | WO1993008657A1 Method of transmitting digitized stereophonic sound signals over radio channels subject to interference |
| 04/29/1993 | WO1993008656A1 Process for transmitting or storing over disturbed channels a digitalized, encoded audio signal composed of a series of information blocks |
| 04/29/1993 | DE4135005A1 Verfahren zum uebertragen digitalisierter, stereofoner tonsignale ueber stoerbehaftete rundfunkkanaele A method for digitized by wear, stereophonic audio signals to interference rundfunkkanaele |
| 04/29/1993 | CA2122010A1 Method of transmitting digitized stereophonic sound signals over radio channels subject to interference |
| 04/28/1993 | EP0538289A1 Process for transmitting a time-variable control parameter |
| 04/28/1993 | EP0532503A4 Cable television radio frequency subscriber data transmission apparatus and calibration method |
| 04/28/1993 | EP0296175B1 Method and installation for digital communication, particularly between and toward moving vehicles |
| 04/27/1993 | CA1317013C Commutation grid |
| 04/27/1993 | CA1316985C2 Simulcast broadcasting system and method |
| 04/22/1993 | WO1993009615A1 Radio transmission system and radio receiver |
| 04/21/1993 | EP0537756A2 Information distributing system with sub-stations transmitting broadcast information by wireless and terminals receiving the information |
| 04/18/1993 | WO1993008646A1 Method and apparatus for synchronizing simulcast systems |
| 04/15/1993 | WO1993007689A1 Method and apparatus for automatically identifying a program including a sound signal |
| 04/15/1993 | WO1993007682A1 Simulcast synchronization and equalization system and method therefor |
| 04/15/1993 | WO1993007681A1 Simulcast synchronization and equalization system and method therefor |
| 04/07/1993 | EP0535435A2 A circuit and method for receiving and transmitting control and status information |
| 04/07/1993 | EP0535434A2 A circuit and method for communicating digital audio information |
| 04/06/1993 | US5201061 Method and apparatus for synchronizing simulcast systems |
| 04/06/1993 | US5200825 Commercial insertion system remotely controlling multiple video switches |
| 04/06/1993 | US5200822 Arrangement for and method of processing data, especially for identifying and verifying airing of television broadcast programs |
| 03/30/1993 | US5199108 Lower power AM band broadcast station |
| 03/30/1993 | US5199078 Method and apparatus of data reduction for digital audio signals and of approximated recovery of the digital audio signals from reduced data |
| 03/24/1993 | EP0532503A1 Cable television radio frequency subscriber data transmission apparatus and calibration method. |
| 03/18/1993 | WO1993005593A1 Remote link adapter for use in tv broadcast data transmission system |
| 03/18/1993 | WO1993005586A1 Radio-paging-link-system with only one radio channel |
| 03/17/1993 | EP0531725A2 Multiantenne VHF receiver |
| 03/10/1993 | EP0531028A2 Multi-transmitter wide-area cellular broadcast communication system |
| 03/09/1993 | US5193214 Vehicular radio receiver with standard traffic problem database |
| 03/07/1993 | CA2076942A1 Multi-transmitter wide-area cellular broadcast communication system |
| 03/04/1993 | WO1993004540A1 System for short-range transmission of signals over the air using a high frequency carrier |
| 03/04/1993 | DE4228753A1 Multiple channel TV transmission method - including receiver with channel selector for multiplexed video information and control data as well as signal separator with decoder |
| 03/04/1993 | CA2119264A1 System for short-range transmission of signals over the air using a high frequency carrier |
| 03/04/1993 | CA2076099A1 Automatic simulcast alignment |
| 03/02/1993 | US5191576 Method for broadcasting of digital data, notably for radio broadcasting at high throughput rate towards mobile receivers, with time frequency interlacing and analog synchronization |
| 02/25/1993 | DE4128045A1 Noise suppression for stereo radio - compresses lower and upper side bands of differential signal in stereo transmitter |
| 02/23/1993 | US5189630 Method for encoding and broadcasting information about live events using computer pattern matching techniques |
| 02/17/1993 | EP0527432A2 A circuit and method for phase error correction in a digital receiver |
| 02/17/1993 | EP0462191B1 Broadcast receiver, in particular for vehicles |
| 02/13/1993 | CA2072709A1 Circuit and method for phase error correction in a digital receiver |
| 01/28/1993 | DE4129543C1 Transmission of async. additional data over audio channels in time multiplex system - adding data to some of audio channels and inputting to multiplexer receiving signals from other channels handling only audio signals |
| 01/21/1993 | DE4123979A1 Traffic announcement storage system for car radio - uses signals at beginning and end of announcement to control storage in memory |
| 01/19/1993 | US5181208 Computation-conserving traffic data transmission method and apparatus |
| 01/19/1993 | CA1312919C Public service trunking simulcast system |
| 01/14/1993 | DE4122004A1 Time-variable adjusting magnitude transmission e.g. for car radio - transmitting magnitude as amplitude change of stereo pilot tone and correlating on reception |
| 01/12/1993 | US5179719 Programmable signal reception system |
| 01/12/1993 | US5179576 Digital audio broadcasting system |
| 01/07/1993 | WO1993000774A1 Broadcast relay transmission system |
| 01/07/1993 | WO1993000748A1 Traffic information broadcast system |
| 01/07/1993 | EP0521732A2 Antenna system for receiving broadcast or communication signals from satellite |
| 01/07/1993 | DE4125433C1 VHF car radio with RDS and traffic news decoders - has memories for diversity reception with automatic switch=over to other transmitting station chain when leaving geographical region |
| 01/05/1993 | US5177801 Cross fader for editing audio signals |
| 01/05/1993 | US5177798 Sound reproducer for high definition television |
| 12/30/1992 | EP0520068A1 Encoder/decoder for multidimensional sound fields. |
| 12/23/1992 | EP0362315B1 Device for monitoring acoustic signal processing systems |
| 12/22/1992 | US5173589 Process for instantaneous confirmation of actions in relation to television programs and device for use of the process |
| 12/15/1992 | US5172396 Public service trunking simulcast system |
| 12/10/1992 | WO1992022154A1 Process for processing and reproducing received, digitally coded audio data and radio receiver for digital audio broadcast data (dab) |
| 12/10/1992 | DE4118970A1 Car radio with traffic information or paging facility - has recording device for storing transmitted information for subsequent use |
| 12/10/1992 | DE4118424A1 Verfahren zur verarbeitung und wiedergabe empfangener digital codierter audio-daten und rundfunkempfaenger zum empfang von digital codierter ton-rundfunkdaten (dar) Method for processing and playback of received digitally encoded audio data and rundfunkempfaenger to the receiving of digitally encoded sound-broadcasting data (dar) |
| 12/09/1992 | EP0517556A1 Method for demodulating RDS signals in a digital way, and demodulator to perform this method |
| 12/09/1992 | EP0517237A2 Apparatus for receiving FM stereo radio signals, with associated data subcarrier,broadcast in the VHF and UHF bands in association with a conventional video signal |
| 12/03/1992 | DE4117787A1 Radio broadcast transmission using variable dynamics - transmitting time reference signal in programme signal and radio data system signal, for exact correlation of time-varying control signal |
| 11/25/1992 | WO1992021184A1 Radio system with measurement and adjustment of transfer delay |