Patents
Sitemap › H04 - Electric communication technique › H04N - Pictorial communication, e.g. television › H04N 7 - Television systems
Patents for H04N 7 - Television systems (274,023)
05/1982
05/25/1982US4331974 Cable television with controlled signal substitution
05/25/1982US4331973 Panelist response scanning system
05/25/1982US4331950 Broad band switching network
05/25/1982CA1124385A1 Pay television system and sending end encoder means
05/18/1982US4330794 Multichannel subscription television system
05/18/1982CA1123973A1 X-ray fluoroscopy device
05/18/1982CA1123951A1 Scrambling system for television sound signals
05/18/1982CA1123950A1 Television security system
05/18/1982CA1123949A1 High security subscription television system employing real time control of subscriber's program reception
05/18/1982CA1123948A1 System arrangement for distribution of television games and the like
05/11/1982US4329711 Apparatus for encoding of information
05/11/1982US4329675 System for automatically substituting television signals at a head station for a cable network
05/05/1982EP0050843A1 Digital scan converter
05/04/1982CA1123092A1 Reduced-attenuation two-way cable communications system
04/1982
04/29/1982WO1982001454A1 Video movement detector
04/28/1982EP0050435A2 Coaxial cable/fiber optic bus network
04/27/1982CA1122712A1 Method for transmitting video signals with the aid of dpc modulation and controlled quantizer
04/27/1982CA1122695A1 Television signal scrambling with introduction of replacement program signals
04/15/1982WO1982001273A1 Method for processing an information signal and means for carrying out the method
04/14/1982EP0049280A1 A television communication arrangement for transmitting data signals.
04/13/1982US4325079 Secure video transmission system
04/13/1982US4325078 Pay per view television control device
04/13/1982US4324401 Method and system for generating moving objects on a video display screen
04/13/1982CA1121917A1 X-ray apparatus for computer tomography
04/13/1982CA1121902A1 Method for improving print quality of coarse- scan/fine-print character reproduction
04/13/1982CA1121863A1 Catv system with controllable reception interference
04/06/1982US4323922 Television coding system with channel level identification
04/06/1982US4323921 System for transmitting information provided with means for controlling access to the information transmitted
04/06/1982US4323916 Data rate reduction for digital video signals by subsampling and adaptive reconstruction
04/06/1982CA1121275A1 Digital signal/noise ratio amplifier apparatus for a communication system
04/01/1982WO1982001109A1 Multiple signal transmission method and system,particularly for television
04/01/1982WO1982001107A1 Television receiver with count type vertical synchronizing circuit
03/1982
03/31/1982EP0048350A1 Image processing system
03/30/1982US4322854 Data communications terminal
03/30/1982US4322745 Television signal scrambling method for CATV system
03/30/1982CA1121047A1 Noise reduction system for color television signal
03/30/1982CA1121043A1 Television signal switching apparatus
03/23/1982US4321623 Auxiliary television signal system
03/23/1982US4321596 Method of aligning videotex characters and device for carrying out such a method
03/23/1982CA1120582A1 Stereophonic television sound transmission system
03/23/1982CA1120581A1 Subscription tv decoder logic system
03/18/1982WO1982000932A1 System and method for high quality image reproduction
03/16/1982US4320503 Synchronizing transmissions from two earth stations to satellite
03/16/1982US4320416 Technique for optimally encoding digitally encoded video signals
03/16/1982CA1119852A1 Optical illumination and distortion compensator
03/09/1982US4319286 System for detecting fades in television signals to delete commercials from recorded television broadcasts
03/09/1982US4319277 Institutional audio-visual system including a plural operating mode television receiver
03/09/1982US4319273 Television signal with encoded synchronizing signals
03/09/1982US4319267 Picture coding and/or decoding equipment
03/09/1982CA1119717A1 Color signal reproducing system and circuit for the same
03/09/1982CA1119713A1 Picture signal coding apparatus
03/09/1982CA1119712A1 Aid for the blind
03/02/1982US4318137 Real time digital recording system for thermovision data
03/02/1982US4318131 TV Camera system having synchronized oscillators in camera head and CCU
03/02/1982US4318128 Process and device for retrieving digital data in the presence of noise and distortions
03/02/1982US4318127 Multiplexed television signal processing system
03/02/1982US4318126 Multiplexed video transmission apparatus for satellite communications
03/02/1982US4318125 Solid state digital audio scrambler system for teletransmission of audio intelligence through a television system
03/02/1982US4318097 Display apparatus for displaying a pattern having a slant portion
03/02/1982US4317956 Remote chalkboard automatic cursor
03/02/1982CA1119285A1 Facsimile communication system
03/02/1982CA1119278A1 Programmable non-duplication switching device
02/1982
02/23/1982US4317215 Tuning system for CATV terminal
02/23/1982US4317132 System for the diffusion of data
02/23/1982US4317130 Narrow band television transmission system
02/23/1982US4317129 Apparatus for the digitization of videofrequency television signals
02/16/1982US4316217 Method and apparatus for connecting a cable television system to a video cassette recorder
02/09/1982US4315257 Method and device for addressing a page memory in a videotex system
02/09/1982CA1118093A1 Pipe inspection apparatue
02/09/1982CA1118092A1 Correlator follower for tracking an object
02/04/1982WO1982000396A1 Adaptive reconstruction of information signals in a plural channel system
02/02/1982US4314372 Methods and means for producing and reproducing transmitted or recorded sound or video signals
02/02/1982US4314285 Editing system for video apparatus
02/02/1982US4314276 Autoboresighting electro-optical system
01/1982
01/26/1982US4313133 Scrambling and descrambling system in CATV broadcasting system
01/26/1982US4313132 Cable TV security means
01/26/1982CA1117211A1 Method of inserting an address signal in a video signal
01/19/1982US4312016 Television signal switching apparatus
01/19/1982CA1116714A1 Hotel/motel power load control and bilateral signalling apparatus
01/12/1982US4310854 Television captioning system
01/12/1982US4310848 Colorimetric evaluation of photographic film
01/06/1982EP0043298A1 High-definition television system
01/06/1982EP0043167A1 Method of transmitting information via television networks
12/1981
12/29/1981US4308558 Page selection device for videotext system
12/29/1981US4308556 Television video signal scrambling system
12/29/1981US4308554 Television viewer reaction determining system
12/24/1981WO1981003730A1 Motion and intrusion detecting system
12/24/1981WO1981003726A1 Fast frame rate augmentation
12/23/1981EP0042133A1 Service-integrated message transmission and communication system
12/22/1981US4307421 Television circuit for changing an interlace factor
12/22/1981US4307420 Motion-compensated interframe coding system
12/22/1981US4307416 Television signal modification apparatus
12/22/1981CA1114941A1 Television system for displaying and recording paths of motion
12/22/1981CA1114939A1 Video game apparatus
12/22/1981CA1114752A1 Card retrieval device
12/22/1981CA1114751A1 Card retrieval device
12/15/1981US4306250 Television receiver arrangement having means for the selective use of separated or locally generated synchronizing signals
12/15/1981US4306249 Digital signal processing method and apparatus
12/15/1981US4305658 Moving object inspection system
12/10/1981WO1981003594A1 Image analysis system
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