Patents for H04N 7 - Television systems (274,023)
01/1991
01/31/1991DE3924302A1 TV receiver with video-text module - has PLL producing sync. signals with output derived from frequency divider when no TV signal is received
01/30/1991EP0410892A1 Method for processing and transmitting a sequence of stereoscopic television image couples through a channel including an analogic and a digital path
01/30/1991EP0410826A1 Iterative motion estimation process, between a reference image and a current image, and device for canying out the process
01/30/1991EP0410745A1 Reflective chopper for infrared imaging systems
01/30/1991EP0410399A2 Video preamplifier circuit
01/30/1991EP0410378A2 Multimedia telemeeting terminal device, communication system and manipulation method thereof
01/30/1991EP0410371A1 Tele-distribution system
01/30/1991EP0410192A1 Circuit for estimation of motion in a captured image
01/30/1991EP0181863B1 Tamper-resistant, expandable communications system
01/30/1991CN1048958A Channel frequency generator for use with multi-frequency output generator
01/30/1991CN1011467B Two-channel coding of digital signals
01/30/1991CN1011466B Method and apparatus for detecting picture motion in television signal
01/30/1991CN1011465B Motion detection circuit
01/30/1991CN1011462B Transmission method and receiver of digital signal packet on the great capacity of transmission path
01/30/1991CN1011459B Method of and circuit arrangement for bitrute reduction
01/29/1991US4989245 Controlled authorization of descrambling of scrambled programs broadcast between different jurisdictions
01/29/1991US4989104 Apparatus for recording and quickly retrieving video signal parts on a magnetic tape
01/29/1991US4989091 Scan converter for a high definition television system
01/29/1991US4989090 Television scan line doubler including temporal median filter
01/29/1991US4989089 Television picture coding device and corresponding decoding device, a television picture transmission system incorporating such devices, and transmission and receiving stages of such a system
01/29/1991US4989088 Error correction system used in picture transmission
01/29/1991US4989087 Multi-predictive method to estimate the motion of the points of an electronic picture
01/29/1991US4989085 Apparatus for remote verification and control of close circuit television cameras
01/29/1991US4989084 Airport runway monitoring system
01/29/1991US4989082 Image processing system for comparing a test article with a master article to determine that an object is correctly located on the test article
01/29/1991US4989081 Home-bus-information system
01/29/1991US4988875 Near infrared polyethylene inspection system and method
01/29/1991US4987884 Electronic endoscope
01/27/1991CA2021865A1 Multimedia telemeeting terminal device, terminal device system and manipulation method thereof
01/24/1991WO1991001072A1 Process and system for broadcasting a high-definition television programme
01/23/1991EP0409756A1 Data reception device with delayed equalizing and retroactive clock recovery
01/23/1991EP0409702A1 Network for distributing video signals by switching with individual modules for amplifying, selecting and receiving a remote control signal
01/23/1991EP0409602A2 High efficiency coding apparatus
01/23/1991EP0409211A2 Universal decoder
01/23/1991EP0408892A1 Programme selection arrangement using a teletext-page-like table
01/23/1991EP0408754A1 Interframe deinterlave switching circuit
01/23/1991EP0408600A1 Widescreen television signal processing system with center and side panel image resolution uniformity
01/23/1991EP0408579A1 Extended definition widescreen television system using plural signal transmission channels
01/23/1991EP0397686A4 Apparatus for efficiently packing data in a buffer
01/23/1991CN1048777A Scan converter for high definition television system
01/22/1991US4987492 User interface control for communication system
01/22/1991US4987490 Decoding device capable of forwardly and backwardly reproducing pictures with a high quality
01/22/1991US4987489 Apparatus for generating an interlaced slow motion video output signal by spatial and temporal interpolation
01/22/1991US4987488 Video system for visualizing microsurgical images with enhanced depth of field
01/22/1991US4987486 Automatic interactive television terminal configuration
01/22/1991US4987480 Multiscale coding of images
01/22/1991US4986187 Toy vehicle assembly with video display capability
01/22/1991CA1279405C Data compression using block list transform
01/22/1991CA1279400C Video cassette recorder adapter
01/21/1991CA2021481A1 Method of subcarrier multiplication which preserves am information in fm systems
01/17/1991DE3935183A1 Cable TV and audio signal transmission system - has advance head end coupled by cables to group subscriber supplied by central station
01/16/1991EP0408460A1 Method and system for broadcasting high definition television programmes
01/16/1991EP0408236A2 Video transmission and control system utilizing internal telephone lines
01/16/1991EP0408066A2 Television tuner
01/16/1991EP0408023A2 Subscriber device for videophone
01/16/1991EP0407919A2 Optical transmitters linearized by means of parametric feedback
01/16/1991EP0407561A1 Audio/video recorder/transceiver
01/16/1991EP0196315B1 Frequency generation for multiplexed analog component color television encoding and decoding
01/16/1991CN1011280B Tv receiver parts with digitizer
01/16/1991CN1011279B Progressive scan television apparatus for non-standard signals
01/15/1991US4985911 Conversational video phone
01/15/1991US4985908 Imaging an object
01/15/1991US4985784 Image data transfer method and apparatus therefor
01/15/1991US4985782 Reproduction system capable of reproducing a still image by interrupting a sequence of recorded signals
01/15/1991US4985772 Television signal decoder bypass switch
01/15/1991US4985769 Multiplex TV signal processing apparatus
01/15/1991US4985768 Inter-frame predictive encoding system with encoded and transmitted prediction error
01/15/1991US4985767 Spatio-temporal sub-sampling of digital video signals representing a succession of interlaced or sequential images, transmission of high-definition television images, and emission and reception stages for such a system
01/15/1991US4985766 Video coder
01/15/1991US4985765 Method and apparatus for picture motion measurement whereby two pictures are correlated as a function of selective displacement
01/15/1991US4985764 Apparatus for detecting a pixel correlation and generating an interpolation signal for a digital television signal
01/15/1991US4985761 Television system set
01/15/1991US4985701 Time-division bit number conversion circuit
01/10/1991WO1991000673A1 A technique for scanning a microfilm image moving at a variable speed
01/10/1991WO1991000672A1 Video scrambling in the frequency domain
01/10/1991WO1991000671A1 Signal processing system
01/10/1991WO1991000670A1 Method and apparatus for transmitting and receiving television program information
01/10/1991WO1991000668A1 Iterative method for estimating movement, between a reference image and a current, and device for implementing same
01/10/1991WO1991000577A1 Method for segmenting the field of motion of an image and its application to the coding of video images
01/10/1991DE3926154A1 Signalverarbeitungssystem Signal processing system
01/10/1991DE3925082C1 Video installation for dental records - has video camera for mouthpiece supplying VDU and hard copy unit or printer
01/09/1991EP0407311A1 Data merging circuit
01/09/1991EP0407273A1 Device for calculating a prediction for image processing
01/09/1991EP0407263A1 Receiving system for TV signals which are retransmitted by satellites
01/09/1991EP0407185A2 Apparatus for still image reproduction
01/09/1991EP0406972A1 Teletext decoder and receiver for television signals for receiving cyclically transmitted teletext pages
01/09/1991EP0406865A2 Demodulation circuit
01/09/1991EP0406508A1 Device for reducing the redundancy in blocks of digital video data in DCT encoding
01/09/1991EP0406423A1 Method for transmission and reception of reflex-modulated signals
01/09/1991EP0406420A1 Television system
01/09/1991EP0406240A1 Advanced compatible television system with auxiliary carrier
01/09/1991EP0270630A4 Signal matching signal substitution
01/09/1991CN2069189U Tv. receiver and repeater system for use with satellite l wave section transmitter
01/09/1991CN1048478A Improvements relating to entertainment and services systems
01/09/1991CN1048477A 信号处理系统 Signal processing system
01/09/1991CN1048473A Digital transmission system transmitter and receiver for use in transmission system, and record carrier obtained by means of transmitter in form of recording device
01/08/1991US4984094 High defination video signal recording system
01/08/1991US4984089 Outdoor surveillance dome with enhanced environmental aptitude and control system therefor
01/08/1991US4984079 Video preamplifier circuit
01/08/1991US4984078 Single channel NTSC compatible EDTV system