Patents
Sitemap › H04 - Electric communication technique › H04N - Pictorial communication, e.g. television › H04N 7 - Television systems
Patents for H04N 7 - Television systems (274,023)
06/1981
06/09/1981US4272791 Method and apparatus for video recording
06/09/1981US4272783 Correlation follower for tracking an object
06/09/1981CA1102881A1 Wired broadcasting systems
06/03/1981EP0029780A1 Equipment for testing a videography television receiver
06/02/1981US4271431 Scan converter utilizing discrete differentially coded signals
06/02/1981US4271430 Microfilm display apparatus
06/02/1981US4271403 Coaxial cable switching circuit
06/02/1981CA1102445A1 Method and apparatus for generating moving objects on a video display screen
06/02/1981CA1102432A1 Controlled beam projector
05/1981
05/27/1981EP0029327A1 Apparatus and method for reproducing image and word data
05/27/1981EP0029246A1 System for the broadcast of information by means of the telephone network
05/26/1981US4270212 CATV Converter
05/26/1981CA1102024A1 Device for the display of data on a display apparatus
05/26/1981CA1102022A1 Programming and selection monitoring system for television receivers
05/26/1981CA1101984A1 Television system for displaying and recording paths of motion
05/19/1981US4268865 Continuous motion flying spot telecine
05/19/1981US4268863 Threshold selection circuit
05/19/1981US4268861 Image coding
05/19/1981US4268860 Television subscriber apparatus
05/19/1981US4268859 High-security cable television access system
05/19/1981US4268858 TV Transmission system for long tow cables
05/13/1981EP0028443A1 Broadcast teletext system
05/13/1981EP0028416A1 Broadband switching system
05/13/1981EP0028415A1 Broadband coupling arrangement
05/13/1981EP0028258A1 Method and apparatus for producing an image of a person's face at a different age
05/12/1981CA1101116A1 Subscription tv audio carrier recovery system
05/05/1981US4266249 Digital encoder for facsimile transmission
05/05/1981US4266243 Scrambling system for television sound signals
05/05/1981US4266240 Television system
04/1981
04/28/1981US4264928 Conference video system
04/28/1981US4264925 Interactive cable television system
04/28/1981US4264924 Dedicated channel interactive cable television system
04/28/1981US4264923 Auto television theater
04/22/1981EP0027423A1 Digital-signal ciphering and deciphering arrangement
04/15/1981EP0026966A1 Apparatus for standards conversion of colour television signals
04/14/1981CA1099394A1 Interframe codec for composite color tv signals comprising means for inverting the polarity of carrier chrominance signals in every other frame or line
04/14/1981CA1099393A1 Method and apparatus for inspecting refractory lining in coke oven chambers and the like
04/14/1981CA1099392A1 Wired television broadcasting systems
04/08/1981EP0026708A1 Data broadcasting-system and receiving equipment used in such a system
04/08/1981EP0026395A2 Process and circuitry for the compatible increase of the resolution in television systems
04/08/1981EP0026267A1 Method and apparatus for compressing and decompressing strings of electrical binary data bits
04/08/1981EP0026232A1 Video display method of reflex action of moving body
04/07/1981US4261043 Coefficient extrapolator for the Haar, Walsh, and Hadamard domains
04/07/1981US4261018 Progressive image transmission
04/07/1981US4260229 Creating visual images of lip movements
04/07/1981CA1099018A1 Predictive encoder or decoder with selection of one of two or more prediction signals according to prediction error signal amplitudes
04/07/1981CA1099010A1 Television receiver
03/1981
03/31/1981US4259662 Threshold setting circuit
03/31/1981CA1098626A1 Apparatus for making laminar radiograms
03/25/1981EP0025741A1 Television communication system for the graphic creating of images
03/24/1981US4258390 Video signal processing circuit
03/24/1981US4258388 Optical indexing system
03/24/1981US4258387 Video telephone
03/24/1981US4258386 Television audience measuring system
03/17/1981US4257065 Video clamp and inverter circuit
03/17/1981CA1097796A1 Vir line recognition system
03/17/1981CA1097794A1 Secure television transmission system
03/17/1981CA1097793A1 Statistical resolution conversion technique
03/17/1981CA1097792A1 Gray scale interpolation technique
03/17/1981CA1097753A1 Pulse controlled switching circuits
03/17/1981CA1097524A1 Drive in theatre
03/11/1981EP0024618A1 Wide-band telecommunication system
03/03/1981US4254400 Image data processor
03/03/1981CA1096971A1 Method and apparatus for form removal from contour compressed image data
02/1981
02/25/1981EP0024141A1 Multiplexed television signal processing system
02/24/1981US4253115 Process for the transmission of an audiofrequency analog signal during line-frame synchronization intervals of a television signal and apparatus for performing this process
02/24/1981US4253114 High security subscription television system employing real time control of subscriber's program reception
02/19/1981WO1981000499A1 Optical illumination and distortion compensator
02/17/1981US4251691 Picture/audio signal transmission system
02/17/1981CA1096018A1 Line scan area signature detection system
02/11/1981EP0023574A1 Opto-electronic system for automatically testing the quality of printed-circuit boards, their intermediate products and printing tools
02/10/1981US4250524 Validation apparatus in a pay television system
01/1981
01/22/1981WO1981000181A1 Method and apparatus for data-rate reduction
01/22/1981WO1981000180A1 Device for the estimation of image contours and application to the coding of television signals
01/21/1981EP0022723A1 Method and apparatus for digital data extraction in presence of noise and distorsion
01/21/1981EP0022713A1 Device for coding and decoding a digital videophone signal
01/20/1981US4246610 Noise reduction system for color television signal
01/20/1981US4246607 X-Ray fluoroscopy device
01/20/1981US4246604 Pipe inspection apparatus
01/20/1981US4246569 Digital recognition circuits
01/14/1981EP0022405A1 Device for coding video frequency television signals and transmission equipment comprising such a device
01/13/1981US4245248 Motion estimation and encoding of video signals in the transform domain
01/13/1981US4245246 Pay TV system
01/13/1981US4245245 Interactive CATV system
01/13/1981CA1093682A1 Method and apparatus for obscuring the raster lines in a photograph of a video monitor screen
01/13/1981CA1093679A1 Apparatus for detecting a surface flaw of a material at high temperature
01/07/1981EP0021948A1 Apparatus for following and recurringly estimating the local state of image contours and application to adaptive prediction for differential encoding of television signals
01/07/1981EP0021942A1 Method and arrangement for the phasing of a local clock
01/07/1981EP0021938A1 Television system with access control using a variable electronic key
01/07/1981EP0021863A1 Digital process for checking the correct reproduction of a composite television signal and device for carrying out this process
01/07/1981EP0021783A1 Recorder, player, method of recording and video record
01/07/1981EP0021132A1 Sampling clock reproducing apparatus
01/07/1981EP0020878A1 Service integrated information transmission and switching system for sound, picture and data
01/07/1981EP0020466A1 Image coding by selective addition of pseudo-random noise to portions of video signal
01/06/1981CA1093204A1 Vir signal detector for a color television receiver
12/1980
12/30/1980US4242703 Projection apparatus for optical systems
12/30/1980CA1092697A1 Underwater inspection and communication apparatus
12/24/1980WO1980002901A1 Television system with access control using a variable electronic key
12/16/1980US4240113 Picture manipulation in video systems
12/16/1980US4240110 Inspection of elongated material
1 ... 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741