Patents for H04N 7 - Television systems (274,023)
01/1991
01/08/1991US4984077 Signal converting apparatus
01/08/1991US4984076 Image compression coding system
01/08/1991US4984074 Motion vector detector
01/08/1991US4984067 HDNTSC signal transmission and reception with time and frequency multiplexing
01/08/1991US4983973 Non-linear analog-to-digital converter
01/08/1991US4983967 Transmission of audio in a video signal
01/08/1991CA1278887C Fast tuning control for a television system
01/08/1991CA1278867C Method of and a device for digital signal coding by vector quantization
01/08/1991CA1278857C Frequency demodulator for television receiver with time multiplexing
01/08/1991CA1278855C Pay television system
01/07/1991CA2020488A1 Demodulation circuit
01/06/1991WO1991000666A2 Method and apparatus for processing digital data
01/05/1991WO1991000646A1 Receiving system for satellite-transmitted television signals
01/05/1991CA2035445A1 System for receiving tv signals transmitted by satellite
01/03/1991DE3925046C1 60-50 Hz video signal conversion method - choosing unselected frame from remaining sequence of three frames by scanning second full picture
01/03/1991DE3914076A1 Telecine film weave correction
01/02/1991EP0406086A1 Method and device for decoding duobinary data transmitted by bursts
01/02/1991EP0406074A1 Image movement field segmentation process for video image coding
01/02/1991EP0406017A1 Video scrambling in the frequency domain
01/02/1991EP0405842A2 Picture coding method
01/02/1991EP0405754A2 A method of processing video image data for use in the storage or transmission of moving digital images
01/02/1991EP0405679A1 Autoadaptive equalization device for duobinary coded digital samples
01/02/1991EP0405669A1 Television system for digital transmission of picture signals
01/02/1991EP0405419A2 Self-aligning analog laser transmitter
01/02/1991EP0404816A1 Dual mode adder circuitry
01/02/1991CN1048295A 电视传输系统 Television transmission system
01/01/1991USH881 TV seeker electronic color filter
01/01/1991US4982440 CATV network with addressable filters receiving MSK upstream signals
01/01/1991US4982430 Bootstrap channel security arrangement for communication network
01/01/1991US4982418 X-ray diagnostics installation having a mean image brightness detector
01/01/1991US4982288 High definition television receiver enabling picture-in picture display
01/01/1991US4982285 Apparatus for adaptive inter-frame predictive encoding of video signal
01/01/1991US4982284 Video signal decoding system having a frame synchronizer function
01/01/1991US4982283 Line-sequential pyramid processing of a plurality of raster-scanned image variables
01/01/1991US4982282 Image signal compression encoding apparatus and image signal expansion reproducing apparatus
01/01/1991US4982280 Motion sequence pattern detector for video
01/01/1991US4982190 Digital arrangement having for its object to shunt ground separations at video circuits
12/1990
12/31/1990CA2020009A1 Television system for digital transmission of picture signals
12/30/1990CA2020033A1 Camera selection and positioning system and method
12/29/1990CA2020008A1 Method of processing video image data for use in the storage or transmission of moving digital images
12/27/1990WO1991000665A1 Video telephone employing pulse width modulation for data transmission
12/27/1990WO1990016130A1 Dynamic image encoder and dynamic image decoder
12/27/1990WO1990016129A1 Receiver-compatible noise reduction systems
12/27/1990WO1990016128A1 Transmission output reducing signal processing device
12/27/1990EP0404465A2 Apparatus for recording and/or reproducing video and audio signals
12/27/1990EP0404431A2 Annealing unit insertion and removal system
12/27/1990EP0404238A1 Devices for signal processing before and after transmission and/or storage with data rate reduction, and systems for transmitting and/or storing signals including such devices
12/27/1990EP0404237A2 Method and device for noise supression of a digital signal
12/27/1990EP0403991A2 Optical distribution of analog and digital signals using optical modulators with complementary outputs
12/27/1990EP0403570A1 Off-premises cable television channel interdiction method and apparatus.
12/27/1990EP0403540A1 Television signal processing system for reducing diagonal image artifacts.
12/27/1990EP0403479A1 Apparatus for processing auxiliary information in an extended definition widescreen television system
12/27/1990CA2063258A1 Video telephone employing pulse width modulation for data transmission
12/27/1990CA1278381C Data compression using orthogonal transform and vector quantization
12/27/1990CA1278374C Image forming apparatus and method
12/27/1990CA1278371C Automatic gain control of a scrambled video signal
12/27/1990CA1278370C High security pay television system
12/26/1990CN1048136A Satellite tv communication system for audience polling and processing answers
12/26/1990CN1048116A Apparatus for timing races
12/26/1990CN1011023B 信息传输系统 Information transmission system
12/26/1990CN1011022B Compatibility of widescreen and non-widescreen tv transmission
12/25/1990US4980912 Public communication system comprising distributed stations, and station and sub-station for use in such a communication system
12/25/1990US4980767 Technique for determining signal dispersion characteristics in communications systems
12/25/1990US4980764 Method for the encoding of data for assistance in the reconstruction of a sub-sampled moving electronic image
12/25/1990US4980763 System for measuring objects viewed through a borescope
12/25/1990US4980761 Image processing system for teleconference system
12/19/1990EP0403399A2 System for measuring objects viewed through a borescope
12/19/1990EP0403297A2 Scanning line number converting device for video signal, and down-converter and picture-in picture tv receiver using the same
12/19/1990EP0403154A2 Vector quantizer search arrangement
12/19/1990EP0403143A2 Vertical motion detector
12/19/1990EP0403140A2 Television system, and transmitter and High-definition receiver for use therein
12/19/1990EP0403004A1 Teletext decoders
12/19/1990EP0403003A1 Teletext decoders
12/19/1990EP0403000A1 Television signal encoding
12/19/1990EP0402999A1 Television signal encoding
12/19/1990EP0402992A1 Transmission system for transmitting a video signal with an identification signal, transmitter for generating the video signal, and picture display device for receiving and displaying the video signal
12/19/1990EP0402973A1 Digital transmission system, transmitter and receiver for use in the transmission system, and record carrier obtained by means of the transmitter in the form of a recording device
12/19/1990EP0402954A2 Prioritizized image transmission system and method
12/19/1990EP0402918A2 Static image video telephone transmission and reception system
12/19/1990EP0402809A2 Satellite television communication system for audience polling and processing answers
12/19/1990EP0402749A1 Time-keeping apparatus for racing
12/19/1990EP0270537B1 Device located at the receiver end for actuation controlled from the transmitter end
12/19/1990EP0229127B1 Device for automatically switching on and off the recording function of a video recorder
12/19/1990CN1047950A Interactive room status/time information system
12/19/1990CN1047949A Storage control method and apparatus for interactive television terminal
12/19/1990CN1047948A Apparatus for digitally controlling d.c. value of processed signal
12/19/1990CN1010886B Shot monitoring apparatus
12/18/1990US4979230 Up-conversion homodyne receiver for cable television converter with frequency offset to avoid adjacent channel interference
12/18/1990US4979049 Efficient encoding/decoding in the decomposition and recomposition of a high resolution image utilizing its low resolution replica
12/18/1990US4979041 High definition television system
12/18/1990US4979040 Decoder for subsampled video signal
12/18/1990US4979038 Variable threshold quantification process in encoding by transformation for the transmission of image signals
12/18/1990US4979037 Apparatus for demodulating sub-nyquist sampled video signal and demodulating method therefor
12/18/1990US4979036 Television motion detection arrangement
12/18/1990US4979035 Electronic endoscope apparatus with CCD output circuit of positive polarity
12/18/1990US4979034 Image memory apparatus
12/18/1990US4979028 Video telephone
12/18/1990CA1278096C High efficiency coding apparatus
12/13/1990WO1990015507A1 Television program selection
12/13/1990WO1990015506A1 Process for obtaining a decision result for a half-image/full-image data compression process