Patents
Sitemap › H04 - Electric communication technique › H04N - Pictorial communication, e.g. television › H04N 7 - Television systems
Patents for H04N 7 - Television systems (274,023)
05/1989
05/09/1989US4829372 Presentation player
05/09/1989CA1253957A1 Tamper-resistant, expandable communications system
05/05/1989WO1989004101A1 Signal coding
05/05/1989WO1989004100A1 Interactive video method and apparatus
05/03/1989EP0314572A2 Closed circuit television system having seamless interactive television programming and expandable user participation
05/03/1989EP0314356A2 Predictive coding system
05/03/1989EP0314269A2 Noise eliminating apparatus of video signal
05/03/1989EP0314250A2 Video digital analog signal processing and display
05/03/1989EP0314203A2 System for enabling descrambling on a selective-subscription basis in a subscriber communication network
05/03/1989EP0314122A2 Still picture picturephone communication system
05/03/1989EP0313612A1 Video image processing.
05/03/1989EP0313605A1 Computerized clearance system for multistorey car parks and parking lots
05/03/1989EP0185692B1 Process for reducing the noticeability of errors in a digital audio signal
05/02/1989US4827511 Automatic gain control circuit for controlling gain of video signal in television receiver
05/02/1989US4827510 Minimization of amplitude gaps in a line-spin scrambled video signal
05/02/1989US4827509 CATV receiver
05/02/1989US4827340 Video-signal DPCM coder with adaptive prediction
05/02/1989US4827339 Moving picture signal transmission system
05/02/1989US4827338 Hybrid coding process by transformation for the transmission of picture signals
05/02/1989US4827337 Inter-frame decoding system with frame memories for uninterrupted clear video signals
05/02/1989US4827336 Symbol code generation processing from interframe DPCM of TDM'd spatial-frequency analyses of video signals
05/02/1989CA1253616A1 Secure coding and decoding system and method for television program signals
05/02/1989CA1253615A1 Technique for promoting catv pay-per-view events and acknowledging subscriber orders
05/02/1989CA1253601A1 Receiving digital sound/data information
04/1989
04/27/1989DE3735291A1 Transmission link for optoelectrical digital audio and video signals
04/26/1989EP0313301A1 Signal coding
04/26/1989EP0313101A2 Fractional pixel mapping in a computer-controlled imaging system
04/26/1989EP0312850A1 X-ray diagnostic apparatus
04/26/1989EP0312798A1 Method for programming a receiver with a video tape recorder for recording parts of television programmes transmitted by satellite
04/26/1989EP0312795A1 Method of programming a receiver with a video tape recorder for recording parts of television programmes transmitted by satellite
04/26/1989CN1032612A Television signal encoded with auxiliary information to assist in scanning format conversion
04/25/1989US4825468 Video noise jammer
04/25/1989US4825467 Restricted access television transmission system
04/25/1989US4825440 Signal error concealment circuit and method
04/25/1989US4825365 Multi-imaging apparatus
04/25/1989US4825303 Compressed audio silencing
04/25/1989US4825288 Method and apparatus for processing video signals
04/25/1989US4825286 Method of converting an analog video to a digital signal
04/25/1989US4825285 Hybrid encoder
04/25/1989US4825067 Coupling means for aligning fiber optic bundles between X-ray image intensifier and image pickup tube
04/20/1989WO1989003543A1 Image recording system
04/20/1989DE3733038A1 Process and circuit arrangement for picture data reduction for digital television signals
04/19/1989EP0312449A1 Device for controlling the presence of picture information in a video signal
04/19/1989EP0312434A1 Transmission system for picture and sound
04/19/1989EP0311919A2 Satellite communications system employing frequency reuse
04/19/1989EP0168460B1 Demodulator for television signals
04/19/1989CN1032475A Motion detection circuit
04/18/1989US4823387 Television tuning system with provisions for tuning RF signals with scrambled video information
04/18/1989US4823386 Addressable subscriber cable television system
04/18/1989US4823385 System for processing coded information
04/18/1989US4823201 Processor for expanding a compressed video signal
04/18/1989US4823184 For electrically analyzing video signals to detect change
04/18/1989US4823135 Satellite receiver having improved polarization plane determination means
04/18/1989US4821862 Coin-operated timer for pay TV
04/13/1989DE3832887A1 Schaltungsanordnung fuer fernseh-/ rundfunkempfaenger und/oder videobandaufzeichnungsgeraete Circuit arrangement for tV / rundfunkempfaenger and / or video tape recorders
04/13/1989DE3832611A1 Interleaving of a video signal
04/13/1989DE3832476A1 Bildcodiersystem Image coding
04/12/1989EP0311191A1 High-definition television picture transmission system using a relatively narrow band channel, and receiver and transmitter suitable therefor
04/12/1989EP0311188A2 System for broadcasting HDTV images over standard television frequency channels
04/12/1989CN1003904B Digital-analog combining transmission method
04/11/1989US4821321 Automatic secure transmission and reception of pictorial information
04/11/1989US4821307 Image splitter for two-way imaging apparatus
04/11/1989US4821290 Decoder for digital signal codes
04/11/1989US4821261 Packet transmission of digital signals over a high capacity channel, particularly over a satellite broadcasting channel
04/11/1989US4821120 Television sub-carrier transmission
04/11/1989US4821119 Method and apparatus for low bit-rate interframe video coding
04/11/1989US4821101 Forming multi)program composite video display signals
04/11/1989US4821097 Apparatus and method for providing digital audio on the sound carrier of a standard television signal
04/11/1989CA1252569A1 Method and device of coding a digital video signal for reproduction of pictures with a high quality even upon occurrence of a drastical change between the pictures
04/11/1989CA1252560A1 Method and system for scrambling information signals
04/06/1989WO1989003159A2 Digital video compression system
04/06/1989WO1989003158A1 Digital video decompression system
04/06/1989WO1989003157A2 Digital video transmission system
04/06/1989WO1989003156A1 Controller for adjusting color hue and saturation of images generated from signals in a non-broadcasting video system
04/06/1989WO1989003153A1 Video coder
04/06/1989WO1989003152A1 Motion estimator
04/06/1989WO1989003024A1 Apparatus and method for imaging and counting moving particles
04/06/1989WO1989002853A1 Measures to control opening of full-panel safety-edge, convenience-feature end closures
04/05/1989EP0310477A1 Terminal for visual and sound communication fitted with a booster illumination device
04/05/1989EP0310175A1 Coding device for digital video signals, and decoding device therefor
04/05/1989EP0310046A2 Method and system for determining video program system signals
04/05/1989EP0310032A2 Motion detection circuit
04/05/1989EP0309984A2 Scrambling of a video signal
04/05/1989EP0309905A2 Method and apparatus for recognising a signal contained in a video signal
04/05/1989EP0309878A2 Method and/or device for programming audio or video apparatuses
04/05/1989EP0309876A2 MAC television transmission system
04/05/1989EP0309669A2 Method for scenery model aided image data reduction for digital television signals
04/05/1989CN1032278A Extended definition widescreen television signal processing system with alternate subcarrier
04/05/1989CN1032276A 译码均衡器 Decoding equalizer
04/05/1989CN1032275A Television signal encoded with auxiliary vertical-temporal information
04/04/1989US4819076 Dual-camera photographic system
04/04/1989CA1252169A1 Method and apparatus for transmitting base-band data in a conductor carrying an rf signal
04/04/1989CA1252156A1 Sampling clock pulse generator
03/1989
03/30/1989DE3731532A1 Process for transmitting encoded picture signals
03/29/1989EP0309355A1 Interactive video communication system
03/29/1989EP0309347A1 Method and apparatus for the analogous enciphering/deciphering of an analogous video signal
03/29/1989EP0309341A1 Terminal for audiovisual communication, especially a video phone having a housing with a hinge joint
03/29/1989EP0309280A1 Video coder
03/29/1989EP0309251A1 Motion estimator
03/29/1989EP0309149A1 Improvements relating to image processing
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