| Patents for H04H 20 - Arrangements for broadcast or for distribution combined with broadcast (21,050) |
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| 02/11/1998 | CN1173252A Frequency agile broadband communications system |
| 02/11/1998 | CN1173098A Broadcasting signal transmitting method and receiving apparatus |
| 02/05/1998 | WO1998005164A1 Return path ingress noise measurement system |
| 02/05/1998 | WO1998005144A1 High-speed internet access system |
| 02/05/1998 | WO1998005138A2 Testing facility for a broadband communications system |
| 02/05/1998 | WO1998005137A1 Audiophonic communication system using a multiplex audiodigital bus |
| 02/05/1998 | WO1998005136A2 Radio receiver with a memory for transmission frequencies and codes associated to said frequencies |
| 02/05/1998 | WO1997039543A3 Link delay calculation system for a radio repeater system |
| 02/05/1998 | DE19733179A1 Data receiver transmitter for road vehicle navigation system |
| 02/05/1998 | DE19630578A1 Rundfunkempfänger Broadcast radio receiver |
| 02/05/1998 | CA2261933A1 Two-way asymmetric communication system |
| 02/04/1998 | EP0822718A1 Network controller for cable television delivery systems |
| 02/04/1998 | EP0822677A2 Data storing method and data searching method for radiodata stored according to this method |
| 02/04/1998 | EP0821851A1 Broadcast system with associated data transmission capabilities |
| 02/04/1998 | EP0610313B1 Radio transmission system and radio receiver |
| 02/03/1998 | US5715315 CATV systems |
| 02/03/1998 | US5715018 Digital advertisement insertion system |
| 02/03/1998 | US5714997 Virtual reality television system |
| 02/03/1998 | US5714945 Bidirectional communication method for CATV system |
| 02/03/1998 | US5713795 System and method of communication with authenticated wagering participation |
| 01/29/1998 | WO1998004048A2 Transmission of digital and analog signals in the same band |
| 01/29/1998 | DE19724261A1 Fluid dispenser for attachment to vessel |
| 01/29/1998 | CA2232676A1 Transmission of digital and analog signals in the same band |
| 01/28/1998 | EP0821530A2 System for reproducing audio and/or video signals and for controlling electronic devices in several rooms within an appartment or a house |
| 01/28/1998 | EP0821528A2 Method for asymmetrically attenuating signals in a transmission system |
| 01/28/1998 | EP0821527A2 Method for asymmetrically attenuating signals in a transmission system |
| 01/28/1998 | EP0821478A2 Electrical muting circuit |
| 01/28/1998 | EP0820665A1 Analog spread spectrum wireless speaker system |
| 01/28/1998 | EP0820663A1 7-channel transmission, compatible with 5-channel transmission and 2-channel transmission |
| 01/28/1998 | EP0669062B1 Mobile two-way communication system |
| 01/28/1998 | CN1171704A Messaging system and method for efficient multi-frequency roaming |
| 01/28/1998 | CN1171680A Data error correcting method for digital signal frames and apparatus used in method |
| 01/28/1998 | CN1171582A Broadcasting system, service providing device and receiving terminal installation |
| 01/27/1998 | US5712920 Method for the compatible transmission and/or storage and decoding of an auxiliary signal |
| 01/27/1998 | US5712850 System for digital broadcasting by satellite |
| 01/21/1998 | EP0820204A2 Wireless services distribution system |
| 01/21/1998 | EP0819354A1 Interactive program guide systems and processes |
| 01/20/1998 | US5710546 Apparatus for encoding and decoding a digital radio signal |
| 01/15/1998 | WO1998001968A2 Annunciator system with mobile receivers |
| 01/15/1998 | CA2259401A1 Annunciator system with mobile receivers |
| 01/14/1998 | EP0818898A2 Method and means for selecting digitally coded traffic messages |
| 01/13/1998 | US5708960 Subscription newspaper dispatching system |
| 01/13/1998 | US5708662 Transmission method and receiving apparatus of emergency information which is frequency-multiplexed on an FM broadcast radio wave |
| 01/13/1998 | US5708478 Computer system for enabling radio listeners/television watchers to obtain advertising information |
| 01/08/1998 | DE19723891A1 Cable communication system e.g. for telephone services |
| 01/08/1998 | DE19627042A1 Supply range and transmitter power determination method for common wave radio network |
| 01/08/1998 | DE19626664A1 Traffic control method for emergency vehicle |
| 01/07/1998 | EP0817414A2 Computer system for enabling radio listeners/television watchers to obtain advertising information |
| 01/07/1998 | EP0817413A2 Data sending/receiving system, data broadcasting method and data receiving apparatus for television broadcasting |
| 01/07/1998 | EP0817412A2 Broadcast system transmitting supplementary data with a broadcast programme |
| 01/07/1998 | EP0817411A2 Data error correcting method for digital signal frames and apparatus used in the method |
| 01/07/1998 | EP0817404A2 Device for delay compensation of difference in transmission time in digital transmission systems |
| 01/07/1998 | EP0817139A2 Device for enabling listeners to preview music recordings |
| 01/07/1998 | EP0815662A2 Mobile and wireless information dissemination system; architecture and protocols |
| 01/07/1998 | CN1169810A Method and apparatus for random in-slot multi-address insertion with collision detection in cable telephoue system |
| 01/07/1998 | CN1169804A Methods and apparatus for synchronizing timing of components of telecommunication system |
| 01/06/1998 | US5706309 Process for transmitting and/or storing digital signals of multiple channels |
| 01/06/1998 | CA2025521C Dynamically responsive catv system with shared fiber optic link |
| 01/02/1998 | DE19723947A1 Fluid dispenser for attachment to vessel |
| 01/02/1998 | DE19715709A1 Fluid dispenser for attachment to vessel |
| 12/31/1997 | WO1997050201A1 A method and system for providing synchronization in a stream of messages and a transmitter and a receiver for use in such a system |
| 12/31/1997 | CN1169219A Digital transmission system for transmitting digital audio signal being in form of samples of a specific wordlength and occurring at specific sampling rate |
| 12/31/1997 | CN1169069A Method and arrangement for lossless adjusting secondary sound volume for broadcast system in a train |
| 12/30/1997 | US5703954 Method and apparatus for improving the quality of AM compatible digital broadcast system signals in the presence of distortion |
| 12/30/1997 | US5703795 Apparatus and methods for accessing information relating to radio and television programs |
| 12/29/1997 | EP0813778A2 Process for the joint use of a time-multiplex transmission channel by a plurality of transmitters |
| 12/29/1997 | EP0813772A1 Dual channel fm receiver with on demand information services |
| 12/29/1997 | EP0606272B1 Simulcast synchronization and equalization system and method therefor |
| 12/24/1997 | WO1997049241A1 Method and system for on the fly substitution of a section of a broadcast signal |
| 12/24/1997 | WO1997049207A1 In-band on-channel digital broadcasting method and system |
| 12/24/1997 | WO1997039535A3 Bandwidth management system for a remote repeater network |
| 12/23/1997 | US5701580 Information providing systems and portable electronic devices |
| 12/23/1997 | US5701346 Method of coding a plurality of audio signals |
| 12/23/1997 | US5701186 Optical cable TV system |
| 12/18/1997 | WO1997048197A3 Communication system with multicarrier telephony transport |
| 12/18/1997 | WO1997048197A2 Communication system with multicarrier telephony transport |
| 12/18/1997 | WO1997048196A1 Low power microcellular wireless drop interactive network |
| 12/18/1997 | DE19644430C1 Self=interference reduction in digital transmitter networks operated in continuous wave mode |
| 12/17/1997 | EP0813341A2 Multimedia communication terminal monitoring system |
| 12/17/1997 | EP0755608A4 A distance learning system providing individual television participation, audio responses, and memory for every student |
| 12/16/1997 | US5697844 System and method for playing games and rewarding successful players |
| 12/11/1997 | WO1997047102A1 Btsc encoder |
| 12/11/1997 | WO1997047101A1 Method for processing of data with a radio receiver |
| 12/10/1997 | EP0812111A2 Method of scrambling three-dimensional image |
| 12/10/1997 | EP0811274A1 Remote control device and remote control method |
| 12/10/1997 | EP0811195A1 Method and apparatus for encoding and decoding a digital radio signal |
| 12/10/1997 | CN1167384A Transmission system for digital audio-frequency broadcasting |
| 12/10/1997 | CN1167383A Transmission system for digital audio-frequency broadcasting |
| 12/10/1997 | CN1167382A Transmission system for digital audio-frequency broadcasting |
| 12/09/1997 | US5697051 Method for coordinating propagation delays in a satellite linked simulcast network using a benchmark station |
| 12/09/1997 | US5697048 On-vehicle data communication system and method |
| 12/09/1997 | US5697047 Automated optoelectronic switched distribution system |
| 12/09/1997 | US5696834 Stereo system and stereo method for electronic acoustical system |
| 12/09/1997 | US5696830 Circuit arrangement for deriving a quality signal dependent on the quality of a received multiplex signal |
| 12/04/1997 | DE19621609A1 Verfahren zur Verarbeitung von Daten mit einem Rundfunkempfänger A method of processing data with a broadcast radio receiver |
| 12/03/1997 | EP0809880A1 Amplitude and phase error normalization of subcarrier generator |
| 12/03/1997 | CN1166899A Scrambled information transmitting and receiving method |
| 12/02/1997 | US5694455 Mobile audio program selection system using public switched telephone network |
| 11/27/1997 | WO1997044924A1 A communications network having a multicast capability |
| 11/27/1997 | WO1997044921A2 Method and apparatus for communicating information using a data tuner |