Patents for H04N 7 - Television systems (274,023)
05/1987
05/19/1987US4667230 Endoscope having a control section with level adjusting device
05/19/1987US4667226 High definition television camera system and method with optical switching
05/19/1987CA1222049A1 Motion detecting circuit utilizing inter-frame difference signals of successive fields
05/13/1987EP0221792A1 Method and apparatus for digital data transmission with intersymbol distortion reduction
05/13/1987EP0221743A2 Method and system for compressing video signals
05/13/1987EP0221739A2 Video scrambling systems
05/13/1987EP0221631A2 Methods and apparatus for monitoring events
05/13/1987EP0221490A2 Space switching device for broad-band signals
05/13/1987EP0221086A1 Compatibility of widescreen and non-widescreen television transmissions.
05/12/1987US4665436 Narrow bandwidth signal transmission
05/12/1987US4665431 Apparatus and method for receiving audio signals transmitted as part of a television video signal
05/12/1987US4665427 Method and apparatus for converting C-MAC television signals for transmission over a limited bandwidth medium
05/12/1987US4665317 Process and equipment for sensing surface defects on a moving strip
05/07/1987WO1987002854A1 Method for hybrid coding by transformation for the transmission of image signals
05/06/1987EP0220946A2 Digital threshold detector with hysteresis
05/06/1987EP0220763A1 Teletext signal processing circuit for a teletext receiver
05/06/1987EP0220706A2 Method for image data coding
05/06/1987EP0220323A1 Image processor
05/06/1987CN86107249A Wide band signal space coupling arrangements
05/06/1987CN86107155A Wide band signal space coupling arrangements
05/05/1987US4663665 TV system conversion apparatus
05/05/1987US4663664 Electronic ticket method and apparatus for television signal scrambling and descrambling
05/05/1987US4663660 Compressed quantized image-data transmission technique suitable for use in teleconferencing
05/05/1987US4663659 Video signal scrambling system employing full line reversal and double burst coding
05/05/1987US4663658 Process and device for assisting the positioning of workpieces by superposition of images
05/05/1987US4663653 Vertical detail enhancer
04/1987
04/29/1987EP0220110A2 Bit plane area correlator
04/29/1987EP0219909A2 Teletext decoders
04/28/1987US4661986 Depth-of-focus imaging process method
04/28/1987US4661862 Differential PCM video transmission system employing horizontally offset five pixel groups and delta signals having plural non-linear encoding functions
04/28/1987US4661853 Interfield image motion detector for video signals
04/28/1987US4661851 Apparatus for reducing the effect of noise interference in audio companding system
04/28/1987US4661850 Progressive scan television system with interlaced inter-field sum and difference components
04/28/1987US4661849 Method and apparatus for providing motion estimation signals for communicating image sequences
04/28/1987EP0207085A4 Signal to noise ratio enhancement using baseband signals in an fm television system.
04/28/1987EP0205554A4 Interlaced digital video input filter/decimator and/or expander/interpolator filter.
04/23/1987DE3537118A1 Method for the redundancy-reducing encoding of images
04/22/1987EP0219169A1 Signal processing arrangement
04/22/1987EP0219016A2 Digital transmission system with signal rate conversion
04/22/1987EP0218963A2 Conference table
04/22/1987EP0218923A2 Compensation of scatter in X-ray imaging
04/22/1987EP0218918A1 Multidimensional DPCM coder with a high processing speed
04/22/1987EP0218917A1 Multidimensional DPCM coder with a high-processing speed
04/22/1987EP0218748A1 Image storage device
04/22/1987EP0218703A1 Video transmission system
04/22/1987EP0125268B1 Signal encoding-decoding apparatus
04/22/1987CN86106977A An x-ray examination apparatus with a locally divided auxiliary detector
04/22/1987CN86104523A Dynamic picture coder with self know drawing of insert symbol
04/21/1987US4660202 Error protection method for packeted data
04/21/1987US4660103 Recording and reproducing digital audio signals formed into groups of varying lengths
04/21/1987US4660081 Video signal processing apparatus having interpolators switchable between an input and an output of a field memory
04/21/1987US4660079 Receiving device in an asynchronous video information transmitting system
04/21/1987US4660078 Coder-decoder for transmission and/or reception of television pictures via digital low-speed channel
04/21/1987US4660072 Television signal transmission system
04/21/1987US4660037 Current location indication apparatus for use in an automotive vehicle
04/21/1987US4659876 Audiographics communication system
04/21/1987US4659875 Electronic system for the secret transmission of audio signals
04/21/1987CA1220852A1 Television circuit arrangement for determining in a video signal frame periods comprising two field periods
04/21/1987CA1220850A1 Television circuit for the reduction of flicker on a display
04/21/1987CA1220849A1 Address-programmable catv converter
04/21/1987CA1220848A1 Wideband cable network
04/21/1987CA1220847A1 Digital code reading apparatus and method
04/16/1987DE3533943A1 Arrangement for receiving the television channels and special television channels available on a cable connection
04/15/1987EP0217952A1 Fm receiver
04/15/1987EP0217906A1 Text receiver
04/15/1987EP0217871A1 Dual mode video tracker.
04/15/1987CN85107502A Information display scheme for subscribers of a aubscription television system
04/14/1987US4658431 Star sensor using CCD
04/14/1987US4658412 X-ray diagnostic apparatus
04/14/1987US4658296 Dynamic noise reduction for video
04/14/1987US4658294 Direct memory access control device for use in teletext signal receiving apparatus
04/14/1987US4658292 Enciphering key distribution system for subscription TV broadcast or catv system
04/14/1987US4658290 Television and market research data collection system and method
04/14/1987US4658284 Image forming apparatus
04/09/1987WO1987002210A1 Process for correcting transmission errors
04/09/1987DE3535178A1 Correction method
04/08/1987EP0217628A2 Interpolation filter with motion compensation
04/08/1987EP0217564A1 A video signal transmitter and processor
04/08/1987EP0217468A1 Broadband optical distribution system
04/08/1987EP0217456A1 An X-ray examination apparatus with a locally divided auxiliary detector
04/08/1987EP0217443A1 Picture signal processing circuit
04/08/1987EP0216995A1 Diagnostic X-ray arrangement
04/07/1987US4656650 X-ray diagnostic apparatus for eliminating scattered X-ray components
04/07/1987US4656629 Digital signal transmitting and/or receiving system
04/07/1987US4656514 Error concealment in digital television signals
04/07/1987US4656513 Data slicer circuit for separating and recovering digital teletext signals
04/07/1987US4656512 Multiple audio transmission system using a single video color carrier
04/07/1987US4656511 Video signal compressing and coding apparatus
04/07/1987US4656507 Quad-edge video signal detector
04/02/1987DE3534034A1 Method and arrangement for transmitting individual images via a long-distance line
04/02/1987DE3534027A1 Method and arrangement for transmitting individual images via a digital network
04/02/1987DE3530822A1 Cable television system
04/01/1987EP0215946A1 Television signal scrambling and data transmission system.
04/01/1987EP0215784A1 Television renting system
04/01/1987EP0128921B1 Apparatus for deriving information signals for component television video signal reception
04/01/1987CN86106008A Video display system for displaying wide and standard aspect ration video signals
04/01/1987CN86105423A Compatible wide screen television system
04/01/1987CN86104896A Switch dividing device for common reception
03/1987
03/31/1987US4654891 Optical communication of video information with distortion correction
03/31/1987US4654877 Data compression system