| Patents for H04H 20 - Arrangements for broadcast or for distribution combined with broadcast (21,050) |
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| 04/13/1994 | EP0591655A1 RDS broadcast receiver |
| 04/13/1994 | EP0591643A1 Digital broadcast system with a sending network |
| 04/12/1994 | US5303401 RDS receiver with automatic region recognition |
| 04/12/1994 | US5303393 Integrated radio satellite response system and method |
| 04/08/1994 | CA2107606A1 Method of establishing inter-base-station synchronization and mobile radio communication system using the method |
| 04/07/1994 | DE4233210A1 Car radio receiver with RDS decoder - decodes data in transmitted information signal w.r.t. frequency and location of transmitter |
| 04/05/1994 | US5301363 Method and apparatus for adaptive power adjustment of mixed modulation radio transmission |
| 04/05/1994 | US5301352 Satellite broadcast receiving system and change-over divider for use in same |
| 03/31/1994 | WO1994007315A1 Digital common wave radio transmission system with a means for avoiding stationary cancellation areas |
| 03/31/1994 | WO1994007314A1 Method for synchronising transmitter frequencies in common wave digital audio broadcast |
| 03/30/1994 | EP0589709A2 Multiresolution transmission system |
| 03/29/1994 | US5299264 System for short-range transmission of signals over the air using a high frequency carrier |
| 03/29/1994 | US5299024 Method and apparatus for broadcasting and receiving broadcasted information |
| 03/24/1994 | DE4235916C1 Satellite channel processing system - has all interfaces between channel processing modules to input distributor and output collector fields and power supply provided on sub-module. |
| 03/23/1994 | EP0588741A1 System for broadcasting digital signals with active time diversity and corresponding transmitter and receiver |
| 03/23/1994 | EP0588121A1 RDS-broadcast receiver with a means for clickless change-over to alternative frequencies |
| 03/23/1994 | EP0587655A1 Process for processing and reproducing received, digitally coded audio data and radio receiver for digital audio broadcast data (dab). |
| 03/22/1994 | US5297205 Portable electronic device to establish public loyalty to a medium or similar |
| 03/22/1994 | US5296643 Automatic musical key adjustment system for karaoke equipment |
| 03/17/1994 | DE4230600A1 Car radio with traffic information reception facility - enters received traffic information in memory under control of decoded identification signals |
| 03/16/1994 | EP0586897A1 Method for selecting route-related announcements with RDS receivers |
| 03/16/1994 | EP0586434A1 Radio system with measurement and adjustment of transfer delay |
| 03/16/1994 | EP0586374A1 Method and apparatus for synchronizing simulcast systems |
| 03/08/1994 | US5293633 Apparatus and method for providing digital audio in the cable television band |
| 03/03/1994 | WO1994005110A1 Digital simulcast transmission system |
| 03/03/1994 | CA2142730A1 Digital simulcast transmission system |
| 03/02/1994 | EP0584839A1 Method for the use at the reception end of additional information within a radio signal |
| 03/02/1994 | EP0584310A1 Road traffic radio receiver |
| 03/01/1994 | US5291525 Symmetrically balanced phase and amplitude base band processor for a quadrature receiver |
| 03/01/1994 | US5291518 Link system for radio paging service |
| 03/01/1994 | US5291483 Cell transfer method and cell receiving apparatus |
| 03/01/1994 | CA1327393C Presentation player |
| 02/24/1994 | DE4227680A1 FM receiver with RDS evaluator - has control determining difference between two frequencies, and matching times for various frequency differences |
| 02/24/1994 | DE4227337A1 Motor vehicle information communication procedure - using on-board transmitter to send code, when vehicle is involved in collision, which is relayed to central station by roadside units |
| 02/23/1994 | CN1082788A Method for the improvement of the radio supply of a traffic route structure by a cellular mobile radio system and apparatus for carrying out the method |
| 02/22/1994 | US5289543 FM receiver and communication systems including same |
| 02/22/1994 | US5289497 Broadcast synchronized communication system |
| 02/22/1994 | US5289288 Method and apparatus for encoding a video signal having multi-language capabilities |
| 02/22/1994 | US5289272 Combined data, audio and video distribution system in passenger aircraft |
| 02/17/1994 | WO1994004005A1 Process and device for a microcellular common-channel radio system |
| 02/17/1994 | WO1994003963A1 Polarity reversing dc power supply for remotely located equipment |
| 02/16/1994 | EP0583027A1 Circuit for determining the field strength of FM transmitters |
| 02/16/1994 | EP0582798A1 Method and circuit arrangement for determining the geographic position of a broadcast receiver |
| 02/15/1994 | US5287550 Simulcast scheduler |
| 02/15/1994 | US5287547 Transmission and reception system |
| 02/15/1994 | US5287351 Method and apparatus for minimizing error propagation in correlative digital and communication system |
| 02/10/1994 | DE4225582A1 Verfahren zur Verbesserung der Funkversorgung einer Verkehrswegestruktur durch ein zellulares Mobilfunksystem und Vorrichtung zur Ausübung des Verfahrens A method for improving the radio supply of a traffic route structure by a cellular mobile radio system, and apparatus for carrying out the method |
| 02/09/1994 | EP0582103A2 Method for transferring, by means of a radio relay system radiophonic signals for isofrequency broadcasting |
| 02/09/1994 | EP0581929A1 Method of inputting alphanumeric data |
| 02/09/1994 | EP0581903A1 Broadcast verification system |
| 02/09/1994 | CN1081806A Combination surge and diplex filter for catv distribution systems |
| 02/08/1994 | USRE34540 Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system |
| 02/08/1994 | US5285498 Method and apparatus for coding audio signals based on perceptual model |
| 02/02/1994 | EP0580976A1 Method for transmitting regionally different information in a common-wave network |
| 02/02/1994 | EP0580617A1 Radio receiver, especially vehicle radio. |
| 02/01/1994 | US5283780 Digital audio broadcasting system |
| 02/01/1994 | US5283734 System for conducting a forgery-resistant game |
| 02/01/1994 | US5283639 Multiple media delivery network method and apparatus |
| 01/27/1994 | DE4323015A1 Stereophonic radio receiver with reception strength detector - controls distribution between right and left channels according to detected demodulated signal level |
| 01/26/1994 | EP0579955A1 Transmitting and receiving system |
| 01/26/1994 | CN1081300A Transmitting and receiving system |
| 01/25/1994 | US5282028 System for displaying information |
| 01/20/1994 | WO1994001980A1 Transmission and storage of multi-channel audio-signals when using a bit rate-reducing coding process |
| 01/20/1994 | WO1993019542A3 Process for transmitting or storing digitalized, multi-channel audio signals |
| 01/19/1994 | EP0578861A1 Device for multiplex telephone communication |
| 01/19/1994 | CN1081036A Method and apparatus for minimizing error propagation in correlative digital communication system |
| 01/18/1994 | US5280629 Technique for measuring channel delay |
| 01/13/1994 | DE4222623A1 Übertragung und Speicherung von mehrkanaligen Tonsignalen bei Anwendung von bitratenreduzierenden Codierverfahren Transmission and storage of multi-channel audio signals when using bitrate reducing coding |
| 01/11/1994 | US5278909 System and method for stereo digital audio compression with co-channel steering |
| 01/11/1994 | US5278844 Method and apparatus for digital audio broadcasting and reception |
| 01/11/1994 | US5278826 Method and apparatus for digital audio broadcasting and reception |
| 01/06/1994 | WO1994000933A1 Delayed accessing method and system for broadcast information |
| 01/06/1994 | WO1993019541A1 Process for transmitting or storing digitised multi-channel audio signals |
| 01/05/1994 | EP0576586A1 Automatic frequency selection in a bi-directional cable television system |
| 01/05/1994 | DE4321821A1 Receiver tuning reception frequencies - has receiver tuner in first direction from first frequency up to first limit. |
| 01/05/1994 | DE4221617A1 Radio receiver apparatus tuning method - makes traffic message channel information audible or visible when transmitted value is detected to be equal to required value. |
| 01/04/1994 | USRE34499 Frequency modulated radio frequency broadcast network employing a synchronous frequency modulated booster system |
| 01/04/1994 | US5276909 Traffic information broadcast system |
| 12/29/1993 | EP0576012A2 Digital broadcast receiver |
| 12/22/1993 | EP0574709A1 RDS broadcast reveiver |
| 12/22/1993 | CN1079855A Dynamic callback technique |
| 12/21/1993 | US5272756 Method and apparatus for determining phase correlation of a stereophonic signal |
| 12/15/1993 | EP0574145A1 Encoding and decoding of audio information |
| 12/14/1993 | CA2045693C Satellite based simulcast paging system |
| 12/09/1993 | WO1993025046A1 Method and apparatus for encoding a video signal having multi-language capabilities |
| 12/09/1993 | WO1993025016A1 Dynamic loader |
| 12/09/1993 | WO1993025013A1 Method and apparatus for maintaining synchronization in a simulcast system |
| 12/09/1993 | WO1993025012A1 Method and apparatus for synchronizing a simulcast transmission system |
| 12/09/1993 | CA2135795A1 Method and apparatus for synchronizing a simulcast transmission system |
| 11/24/1993 | EP0570547A1 Technique for measuring channel delay |
| 11/24/1993 | EP0570508A1 Am-fm combined stereo receiver |
| 11/18/1993 | EP0569374A1 Procedure for the identification of transmitter or region in common-wave broadcasting networks. |
| 11/18/1993 | EP0553289A4 Digital audio broadcasting system |
| 11/17/1993 | CN1078584A Method for delivering information using frequency modulation broadcasting |
| 11/16/1993 | US5263177 Modified simulcast communication system |
| 11/16/1993 | US5263021 System for integrated distribution of switched voice and television on coaxial cable |
| 11/16/1993 | US5261757 Shaft mount for data coupler system |
| 11/11/1993 | WO1993022874A1 Product information storage, display, and coupon dispensing system |
| 11/11/1993 | WO1993022851A1 Combination surge and diplex filter for catv distribution systems |
| 11/09/1993 | US5261118 Simulcast synchronization and equalization system and method therefor |