Patents
Patents for H04N 9 - Details of colour television systems (80,494)
01/1991
01/02/1991CN2068740U Fully-automatic multifunction chrominance signal converter
01/02/1991CN1048294A Video recorder with generation of text signal
01/02/1991CN1048276A Thin-type picture display device
01/01/1991USH881 TV seeker electronic color filter
01/01/1991US4982290 Digital electronic still camera effecting analog-to-digital conversion after color balance adjustment and gradation correction
01/01/1991US4982287 Control of brightness level adapted to control of contrast
01/01/1991US4982280 Motion sequence pattern detector for video
01/01/1991US4982276 Focussing adjustment changeover circuit for projection TV receiver
01/01/1991US4982275 Modular flat-screen color television displays and modules and circuit drives therefor
01/01/1991US4982273 Modular flat-screen color television displays and modules and circuit drives therefor
01/01/1991US4982272 Modular flat-screen color television displays and modules and circuit drives therefor
01/01/1991US4982271 Motion-adaptive device for separating luminance signal and color signal
01/01/1991US4982270 Video data transmitting system
01/01/1991US4982190 Digital arrangement having for its object to shunt ground separations at video circuits
01/01/1991US4982179 Composite video signal generation method and device
01/01/1991US4982178 Shadow mask color system with calligraphic displays
01/01/1991US4982081 Ambient light rejecting quad photodiode sensor
01/01/1991US4981352 Projection display device
12/1990
12/27/1990WO1990016131A1 Digital video recording
12/27/1990WO1990016128A1 Transmission output reducing signal processing device
12/27/1990WO1990016127A1 Video recorder with text-signal generation facility
12/27/1990EP0404693A2 Variable scanning frequency multi-color projector
12/27/1990EP0404465A2 Apparatus for recording and/or reproducing video and audio signals
12/27/1990EP0404393A2 Video digitising/display adapter
12/27/1990EP0404383A2 Apparatus for recording and reproducing video signals of high resolution image
12/27/1990EP0404243A1 Color display tube with twist correction means
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
12/27/1990EP0403759A2 Arrangement for obtaining pictoral effects in video apparatus
12/27/1990EP0403540A1 Television signal processing system for reducing diagonal image artifacts.
12/26/1990CN1048137A Method and apparatus of processing color tv picture
12/26/1990CN1011022B Compatibility of widescreen and non-widescreen tv transmission
12/25/1990US4980779 Information signal recording and/or reproducing apparatus for correcting time variations
12/25/1990US4980775 Modular flat-screen television displays and modules and circuit drives therefor
12/25/1990US4980774 Modular flat-screen television displays and modules and circuit drives therefor
12/25/1990US4980759 Calibration system and method for color image scanning
12/25/1990US4980756 Control signal generator for a television system
12/25/1990US4980755 Circuit for enhancing a color difference signal by utilizing the change of a luminance signal
12/25/1990US4980737 Luminance signal and chrominance signal separating circuit
12/25/1990US4980614 Used in a display apparatus with CRT
12/25/1990US4980613 Flat CRT display apparatus
12/25/1990US4979789 Continuous source scene projector
12/24/1990WO1991000675A1 Television set for selectively processing a composite signal colour correction (cscc) or a signal split into a composite video signal and a chrominance carrier
12/20/1990DE3919639A1 Reducing colour flicker during colour TV signal reproduction - involves recursive filtering of chrominance differential signals, after A=D conversion, obtained by decoding
12/19/1990EP0403258A2 Time information generator
12/19/1990EP0403253A1 An electronic image composition system
12/19/1990EP0403248A2 Photoelectric converting apparatus
12/19/1990EP0403081A1 Colour display
12/19/1990EP0402983A1 Driving circuit for a matrix display device
12/19/1990CN1047951A Modulation system for projection display
12/18/1990US4979037 Apparatus for demodulating sub-nyquist sampled video signal and demodulating method therefor
12/18/1990US4979032 Color imaging apparatus producing on various image receptive materials a visually matched hard copy reproduction of a video image displayed
12/18/1990US4979030 Color display apparatus
12/18/1990US4979027 Image reading apparatus having amplification factors vary in response to a spatial frequency of an input image signal
12/18/1990US4979026 Polarized light 360 degree viewing system
12/18/1990US4979025 Carrier chrominance signal processing circuit
12/18/1990US4979024 Vertical contour enhancement suppression circuit
12/18/1990US4979023 Adaptive comb filter for artifact-free decoding
12/18/1990US4979022 Processing of color video signals
12/18/1990US4979021 For causing a video camera to produce a signal to cue a special effect
12/18/1990US4978952 Flat screen color video display
12/18/1990CA1278119C Brightness and automatic kinescope bias control in a video signal processor with an ac coupled kinescope driver
12/13/1990WO1990015404A1 Apparatus for interfacing video frame store with color display device
12/12/1990EP0402162A2 Image processing with noise enhancing operators for moiré reduction and/or random dot generation
12/12/1990EP0402137A2 Projection type image display apparatus
12/12/1990EP0402135A2 Picture reproducing apparatus and method
12/12/1990EP0402130A2 Method and apparatus for driving color display device
12/12/1990EP0401933A1 Video signal receiving and processing system
12/12/1990EP0401912A2 Modulation system for projection display
12/12/1990EP0401261A1 Synchronous, multiple channel analogue and audio-visual record and playback unit
12/11/1990US4977584 CCD image sensor with vertical overflow drain
12/11/1990US4977462 Apparatus for correcting a time base error in a video signal
12/11/1990US4977450 Image pickup system for an endoscope using a first filter matched to a frequency of a fiber array and a second matched to a frequency of an image pickup device
12/11/1990US4977447 Color cathode ray tube
12/11/1990US4977446 Digital convergence correcting apparatus
12/11/1990US4977445 Sync-signal reproducing circuit for use in television receiver
12/11/1990US4977355 Convergence control system
12/11/1990CA1277724C Digital phase-locked loops
12/06/1990DE3917665A1 Magnetic tape recorder and playback - uses time expanded luminance signals, transmitted or recording and playback channels, for deriving HDTV signals
12/06/1990DE3915581A1 SECAM colour identification circuit with two-branch decoder - produces positive identification from difference between frequencies of colour sync. oscillations passed by input phase discriminator
12/05/1990EP0401011A1 Filter circuits
12/05/1990EP0400993A2 Projection-type image display apparatus
12/05/1990EP0400750A1 Thin type picture display device
12/05/1990EP0400717A1 Automatic or semi-automatic signal level adjustment for a photographic picture to television signal converter
12/05/1990EP0400606A2 Automatic white balance control circuit
12/05/1990EP0400021A1 Dual mode gen-lock system which automatically locks to color burst or to sync information
12/05/1990EP0214185B1 Video communications transmission and reception apparatus
12/05/1990CN1010736B Video display system for displaying wide and standard aspect ration video signals
12/04/1990US4975915 Data transmission and reception apparatus and method
12/04/1990US4975861 Color conversion image processing system with modified intensity information calculation
12/04/1990US4975788 Video signal skew corrector
12/04/1990US4975771 Method and apparatus for TV broadcasting
12/04/1990US4975767 NTSC/PAL subcarrier based H-lock with color framing and detection
12/04/1990US4974942 Active flat-design video screen
11/1990
11/29/1990WO1990014679A1 Beam-indexing electronic tube with cathodoluminescent screen
11/29/1990DE4016420A1 Phase coupled auxiliary carrier regenerator
11/28/1990EP0399602A1 Method of determining a display parameter of a raster scan picture display tube, and method of treating such a tube for improving picture display
11/28/1990EP0398875A1 Image storage and retrieval apparatus
11/28/1990EP0222873B1 Single sensor color video camera
11/28/1990EP0169910B1 Rotary head type magnetic image recorder/reproducer
11/27/1990US4974095 Method and apparatus for displaying an image