Patents
Sitemap › H04 - Electric communication technique › H04N - Pictorial communication, e.g. television › H04N 7 - Television systems
Patents for H04N 7 - Television systems (274,023)
05/1991
05/22/1991CN2077624U Double-pilot-frequency signal generator
05/22/1991CN1051650A Method and apparatus for encrypting and decrypting time domain signals
05/21/1991US5018197 Secure video decoder system
05/21/1991US5018186 Communicating apparatus providing discriminated voice and/or image communication
05/21/1991US5018179 Recursive filter and image display apparatus including the same
05/21/1991US5018167 Modem employing pulse width modulation for data transmission
05/21/1991US5018090 Digital interpolation circuitry
05/21/1991US5018021 Individualized video center
05/21/1991US5018010 Decoder for subsampled video signal
05/21/1991US5017781 Read-out system for a luminescent storage screen in an X-ray diagnostics installation
05/16/1991WO1991007063A1 Signal processing apparatus for a widescreen television system
05/16/1991WO1991007062A1 Signal processing apparatus for a widescreen television system
05/16/1991WO1991007061A2 A hierarchical storage and display method for high resolution digital images in a multiuse environment
05/16/1991WO1991007056A1 Process and device for activating a chip card
05/16/1991WO1991007055A1 Method for formatting, on a digital bus, check data for a digitized video signal
05/16/1991WO1991007054A1 Tv transmission system
05/16/1991WO1991007050A1 Cable television decoder to television accessory interfacing
05/16/1991WO1991007049A1 Process for progressive reproduction of pictures with increased picture frequency
05/16/1991WO1991007041A1 Called person identification in telecommunication
05/16/1991WO1991007018A1 Transmission of broadband signals
05/16/1991WO1991006912A1 Tv data capture device
05/16/1991DE3937813A1 HDTV signal transmission system - has decoder for high definition signal coupled into signal regeneration system
05/16/1991CA2072634A1 Transmission of broadband signals
05/15/1991WO1991007847A1 Transmission system
05/15/1991EP0427653A1 System for the compression of digital images belonging to a sequence of images using adaptive quantisation with psycho-visual transformation function
05/15/1991EP0427601A1 Method for authenticating a microprocessor-card, and system for implementing it
05/15/1991EP0427600A1 Contact chip card reader
05/15/1991EP0427576A1 Interpolator for a sub-sampling transmission system
05/15/1991EP0427524A1 Adaptive rounder for video signals
05/15/1991EP0427108A2 Picture coding apparatus
05/15/1991EP0426968A1 Device for the control of the mouth of bottles or the like
05/15/1991EP0426923A1 Compound video signal scrambling and unscrambling method and apparatus
05/15/1991EP0245253B1 Video compression method
05/15/1991CN1051474A Television transmision system
05/15/1991CN1051472A Method of increasing frame frequency continuously rendition picture
05/14/1991US5016273 Dual communication mode video tape recorder
05/14/1991US5016272 Home video system
05/14/1991US5016109 Apparatus and method for segmenting a field of view into contiguous, non-overlapping, vertical and horizontal sub-fields
05/14/1991US5016107 Electronic still camera utilizing image compression and digital storage
05/14/1991US5016104 Receiver-compatible noise reduction systems
05/14/1991US5016102 Motion dependent video signal processing
05/14/1991US5016101 Video signal to photographic film conversion
05/14/1991US5016100 Transmission of a video signal using adaptive delta modulation
05/14/1991US5016010 System for controlling a number of bits required to represent coded output data
05/14/1991CA2013575A1 High resolution translation of images
05/14/1991CA2002933A1 Apparatus for generating superimposed television images
05/14/1991CA1284219C System and method for improving chrominance in video disc storage system
05/14/1991CA1284211C Cable television system selectively distributing pre-recorder video and audio messages
05/08/1991EP0426542A1 Method of instant validation of actions in the field of television programmes and device for carrying out this method
05/08/1991EP0426336A2 Compression of a PCM facsimile signal for transmission in a packet switching network
05/08/1991EP0426260A2 Adaptive zonal coder
05/08/1991EP0425871A2 Fiber optic telecommunication system employing continuous downlink, burst uplink transmission format with preset uplink guard band
05/08/1991EP0425834A2 System and multiplexer/ demultiplexer for the transmission/ reception of digital television information
05/08/1991EP0425595A1 Process and arrangement for automatic optical classification of plants.
05/08/1991EP0425528A1 A real-time signal processing circuit
05/08/1991DE3936658A1 TV cable signal distortion method - is provided by superimposing noise signals at receiver
05/08/1991CN1051220A Reference system for railway track machines
05/07/1991US5014349 Television tuner for common use in BS/UV
05/07/1991US5014334 Signal encoding and decoding system
05/07/1991US5014310 Video scrambling and descrambling by varying sequence of segments in adjacent video information lines
05/07/1991US5014309 Off-premises cable television channel interdiction method and apparatus
05/07/1991US5014267 Video conferencing network
05/07/1991US5014198 Image information compression apparatus
05/07/1991US5014134 Image compression method and apparatus
05/07/1991US5014127 Method of generating a series of DPCM code words, method of storing color image data, optical disc whereon image data are stored, and display apparatus
05/07/1991US5014125 Television system for the interactive distribution of selectable video presentations
05/07/1991US5014122 Method and apparatus for encoding and transmission of video signals
05/04/1991WO1991006881A1 Visual image transmission by fibre optic cable
05/04/1991CA2072654A1 Visual image transmission by fiber optic cable
05/02/1991WO1991006182A1 Digital television standards conversion
05/02/1991EP0425089A2 Conditional motion compensated interpolation of digital motion video signals.
05/02/1991EP0425051A1 Coding device with a variable length coder and associated decoding device
05/02/1991EP0425034A1 Method of transmitting a digital video signal and a receiver for use in the method
05/02/1991EP0424989A2 Adaptive comb filter
05/02/1991EP0424811A1 Reference system for railway track working machines
05/02/1991EP0424743A2 Audio-video data interface for a high speed communication link in a video-graphics display window environment
05/02/1991EP0424725A2 System for the automatic recording of a television programme
05/02/1991EP0424655A2 Method of transmission of widescreen videosignals for display on television receivers with a conventional or wide aspect ratio
05/02/1991EP0424654A2 Device for generating a recognition signal for the image aspect ratio of a video signal
05/02/1991EP0424648A2 Method, system and apparatus for providing demographically targeted television commercials
05/02/1991EP0424619A2 Still image video telephone transmission system
05/02/1991EP0424469A1 System and process for vcr scheduling.
05/02/1991DE3936179A1 Fernsehuebertragungssystem Fernsehuebertragungssystem
05/02/1991DE3935981A1 Verfahren zur progressiven wiedergabe von bildern mit erhoehter bildwechselfrequenz A method for progressive rendering of images with an elevated frequency bildwechsel
05/02/1991DE3935336A1 TV receiver with IR camera - has connecting optical glass fibres for use as TV camera
04/1991
04/30/1991US5012510 Dynamic callback technique
04/30/1991US5012509 Communication conference apparatus and method for remote conferencing
04/30/1991US5012504 Automatic brightness compensation for fluorography systems
04/30/1991US5012352 Digital signal recording apparatus time-division multiplexing video and audio signals
04/30/1991US5012350 Video cassette recorder
04/30/1991US5012348 Terminal device for picture communication
04/30/1991US5012338 Teletext decoders
04/30/1991US5012337 Motion dependent video signal processing
04/30/1991US5012336 Motion dependent video signal processing
04/30/1991US5012326 Television signal transmitting and receiving system
04/30/1991US5012116 System for inspecting bearing balls for defects
04/30/1991US5011949 Ascorbic acid derivative
04/30/1991CA1283731C Adaptive line interpolation for progressive scan displays
04/24/1991EP0424269A1 Movement compensation device and television receiver containing such a device
04/24/1991EP0424201A1 Decoder for decoding an encrypted television audio signal
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