Patents
Sitemap › H04 - Electric communication technique › H04N - Pictorial communication, e.g. television › H04N 7 - Television systems
Patents for H04N 7 - Television systems (274,023)
11/1987
11/25/1987EP0246714A1 Pseudo-random binary sequence generators
11/25/1987EP0246701A1 DPCM coder and associated decoder
11/25/1987EP0246698A2 Circuit arrangement for a television receiver provided with a teletext decoder
11/25/1987CN87103473A Method of and apparatus for recording and/or reproducing picture signal and associated audio signal in/from record carrier and record carrier obtained by means of method
11/24/1987US4709418 Wideband cable network
11/24/1987US4709394 Multiplexed real-time pyramid signal processing system
11/24/1987US4709266 Satellite scrambling communication network using geographically separated uplinks
11/24/1987US4709264 Picture processing apparatus
11/19/1987WO1987007109A1 Interactive television and data transmission system
11/19/1987EP0246085A2 Surveillance systems
11/19/1987EP0245904A1 Method of and apparatus for recording and/or reproducing a picture signal and an associated audio signal in/from a record carrier and record carrier obtained by means of the method
11/19/1987EP0245621A2 Compression of multilevel signals
11/19/1987EP0245611A2 Remote master-slave control method
11/19/1987EP0245253A1 Video compression method.
11/19/1987DE3717261A1 Method for selecting television programmes by telephone
11/18/1987CN87103217A Digital-analog combining transmission method
11/17/1987US4707738 Adaptive process for the coding and decoding of a sequence of pictures by transformation and devices for performing this process
11/17/1987US4707730 Sync extraction for a broadcasting system with time multiplexing of digital and analog signals
11/17/1987US4707729 System for the line-wise compression of binary data of a picture field in a compression device, decompression device for use in such a system, and display device including such a decompression device
11/17/1987CA1229407A1 Transmission system for tv signals on radio links
11/17/1987CA1229385A1 Method and apparatus for subscription broadcast
11/11/1987EP0244660A2 Relevance and non-relevance analytical code modulation method with domain prediction for the determination, prediction and transmission of (ir)relevant (picture) signal areas by the evaluation of local differences
11/10/1987US4706285 Automatic gain control of a scrambled video signal
11/10/1987US4706284 Television signal data transmission system
11/10/1987US4706283 Television signal scrambling system
11/10/1987US4706268 For displaying an X-ray transmission image of an object
11/10/1987US4706265 Code converting system and method for band compression of digital signals
11/10/1987US4706260 DPCM system with rate-of-fill control of buffer occupancy
11/10/1987US4706121 TV schedule system and process
11/10/1987US4706119 Camera vision axis inclination indication apparatus
11/10/1987US4706109 Television transmission system
11/10/1987US4706075 Circuit arrangement and method for moving characters superimposed on an image represented by a video signal
11/10/1987CA1229157A1 Method for determining the displacement of image sequences and arrangement and use thereof
11/05/1987DE3703683C1 Method for suppressing acoustic feedback in video conference systems and circuit arrangement for carrying out the method
11/04/1987EP0244260A2 Method and system for multiplex transmission of an audio signal and a video signal through a communication cable
11/04/1987EP0244002A1 Method of transmitting update information for a stationary video picture
11/04/1987EP0244001A2 Hybrid coder for videosignals
11/04/1987EP0243923A2 Method and apparatus for transmitting image data in a satellite system
11/04/1987EP0243740A2 Transmission of the tuning data of a television receiver to a connected video recorder
11/04/1987CN87102030A Adjacent multi-channel mixing method for cable tv system
11/03/1987US4704725 Signal processing apparatus and methods
11/03/1987US4704629 Television system and data generator and receiver suitable therefor
11/03/1987US4704628 Combined intraframe and interframe transform coding system
11/03/1987CA1228916A1 Scanning line interpolation circuit for television signal
11/03/1987CA1228914A1 Enciphering key distribution system for subscription tv broadcast or catv system
10/1987
10/29/1987DE3613585A1 User device for video telephony
10/28/1987EP0243312A2 Decoder for a pay television system
10/28/1987EP0242935A1 Video signal motion detecting apparatus
10/28/1987EP0242923A1 Video signal converter
10/28/1987EP0242922A2 High-definition television transmission system
10/28/1987EP0242908A1 Television signal memory write circuit
10/28/1987EP0242469A1 Video scrambling system with line tilt correction
10/28/1987EP0242365A1 Digital imagery and analysis system
10/28/1987CN87102794A Method of transmitting update information for a stationary video picture
10/27/1987US4703496 Automatic x-ray image brightness control
10/27/1987US4703358 Apparatus for processing a television signal including a movement detector
10/27/1987US4703355 Audio to video timing equalizer method and apparatus
10/27/1987US4703354 Non-linear sync signal processing circuit
10/27/1987US4703352 High efficiency technique for coding a digital video signal
10/27/1987US4703351 Apparatus for an efficient coding of television signals
10/27/1987US4703350 Method and apparatus for efficiently communicating image sequences
10/27/1987US4703349 Method and apparatus for multi-dimensional signal processing using a Short-Space Fourier transform
10/27/1987US4703177 Arrangement for the production of X-ray pictures by computer radiography
10/22/1987WO1987006419A1 Color correction system and method
10/22/1987WO1987006418A1 Method and apparatus for conveying information signals
10/22/1987WO1987006416A1 Device for the remote control of a videorecorder or a videoreceiver
10/22/1987WO1987006353A1 Method for the three-dimensional surveillance of the object space
10/21/1987EP0241983A1 Image-processing device for estimating the displacement of objects within the image
10/21/1987EP0241854A2 Video signal processing circuit of motion adaptive type
10/21/1987EP0241745A1 Method for the data reduction of digital picture signals by vector quantization of coefficients obtained by orthonormal transformation by means of a symmetrical, nearly cyclical Hadamard matrix
10/21/1987EP0241576A1 Data quantity reduction method at image coding
10/20/1987US4701937 Signal storage and replay system
10/20/1987US4701914 Apparatus for correcting cyclic code data stored in memory and method therefor
10/20/1987US4701794 Television receiver comprising a teletext decoding circuit and a page number memory
10/20/1987US4701783 Technique for encoding and decoding video with improved separation of chrominance and luminance
10/15/1987DE3623108C1 Method for contribution- or time-controlled recording of television programme contributions
10/14/1987EP0241011A1 Device for switching through colour video signals
10/14/1987EP0240948A2 A method of and a device for digital signal coding by vector quantization
10/13/1987US4700388 Apparatus for scrambling a television signal
10/13/1987US4700387 Broadcast system for scrambled programming signals
10/13/1987US4700386 Technique for promoting CATV pay-per-view events and acknowledging subscriber orders
10/13/1987US4700365 Digital threshold detector with hysteresis
10/13/1987US4700345 Downsampling and prefilter implementation in television systems
10/13/1987US4700322 For displaying text on a video screen
10/13/1987US4700229 Image enhancement circuit
10/13/1987US4700226 Rate buffer control of predicted signal decimation and interpolation for adaptive differential pulse code modulator
10/13/1987US4700225 Method and apparatus for testing pattern of a printed circuit board
10/13/1987US4700222 Apparatus and method of testing the frequency response of a cable television system
10/13/1987US4700184 One-way data packet transmission system for processing data arranged in groups
10/13/1987US4699125 For producing a video signal by insertion in a body cavity
10/13/1987CA1228163A1 Vector quantizer
10/13/1987CA1228156A1 Apparatus for symmetrically truncating two's complement binary signals
10/13/1987CA1228154A1 Progressive scan video processor providing video interpolation
10/13/1987CA1228153A1 Television transmission system
10/13/1987CA1228152A2 Subscriber control system
10/13/1987CA1228136A1 Surface inspection apparatus
10/07/1987EP0240383A1 Method for compressing digital pictures, and device for using such a method
10/07/1987EP0240336A2 Method and system for generating a description of the distribution of looking time as people watch television commercials
10/07/1987EP0240209A2 Encoding and decoding component digital video signals
10/07/1987EP0240029A2 Picture display apparatus
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