Patents
Patents for H04N 9 - Details of colour television systems (80,494)
03/1989
03/08/1989EP0306402A1 Optical device for still video image scanning, and scanner comprising such a device
03/08/1989EP0306071A2 Extended horizontal resolution of luminance and chrominance in a high definition television system
03/08/1989EP0306005A2 Heterodyne color signal recognition
03/08/1989EP0185733B1 Apparatus for producing a color image signal
03/07/1989US4811121 Magnetic recording and reproducing system using preceding and lagging groups of rotary heads to permit coincident timing for reproduced video and audio signals
03/07/1989US4811120 Information signal recording and/or reproducing apparatus
03/07/1989US4811119 Apparatus for high-density minimal crosstalk recording and reproducing of terminance and chrominance signals using a magnetic tape
03/07/1989US4811118 Detachable unit electronic camera
03/07/1989US4811117 Video tape recorder for recording and reproducing two-channel component signals of a video signal on a magnetic tape using two pair of heads and alternately delayed signals
03/07/1989US4811116 Video recorder using extended tape tracks to record compressed chrominance
03/07/1989US4811105 Image sensor with an image section and a black level detection section for producing image signals to be stored and read out from a storage section
03/07/1989US4811092 Movement detector for composite color television signals
03/07/1989US4811088 Color video camera apparatus providing correction of light intensity-dependent phase errors in color multiplex carrier signal
03/07/1989US4811087 Clamping circuit for a television transmission system
03/07/1989US4811086 Image sensing apparatus
03/07/1989US4811084 Video color detector and chroma key device and method
03/07/1989CA1250976A1 Method for generating electronically controllable color elements and color display based on the method
03/07/1989CA1250949A1 Real time processor for video signals
03/07/1989CA1250947A1 Television receiver with auxiliary video input
03/02/1989DE3727637A1 Method of stringing together time-code signals to be recorded additionally with video signals on magnetic tape
03/01/1989EP0305287A1 Colour image display system with a matrix screen
03/01/1989EP0304991A2 System and apparatus for correcting misconvergence and misgeometry in a composite image
03/01/1989EP0304643A2 Improved method and apparatus for reconstructing missing color
03/01/1989EP0181872B1 Optical spatial frequency filter
02/1989
02/28/1989US4809118 PCM helical-scan magnetic record/playback systems
02/28/1989US4809085 Recording and reproducing apparatus for reducing cross-talk in color television signal
02/28/1989US4809084 Apparatus for processing video signal
02/28/1989US4809078 Lighted device for an electronic device
02/28/1989US4809070 Method and apparatus for adding texturing highlights to a video signal
02/28/1989US4809069 Multifunction memory for digital television
02/28/1989US4809060 Hanging dot reduction arrangement
02/28/1989US4809059 Chroma control circuit for a digital television receiver
02/28/1989US4807981 Spatial frequency filter
02/28/1989US4807978 Color display device and method using holographic lenses
02/28/1989US4807975 Image forming system having uniform illumination flux for liquid crystal image means
02/28/1989CA1250662A1 Video signal reproducing apparatus
02/28/1989CA1250660A1 Reference signal generator
02/28/1989CA1250659A1 Automatic phase control circuit used for time base corrector
02/28/1989CA1250658A1 Method of error modification for video data
02/28/1989CA1250657A1 Adaptive filtering system
02/23/1989DE3726749A1 Video recorder with standard and long-play mode
02/22/1989EP0304254A2 Color video signal converting method
02/22/1989EP0303898A1 Projection-type color display device
02/22/1989EP0303700A1 Optical disk
02/22/1989CN1031304A Clock signal generation system
02/22/1989CN1003415B Playback vide signal processing equipment
02/21/1989US4807060 Information signal recording apparatus
02/21/1989US4807050 Video signal recording/reproducing apparatus
02/21/1989US4807049 C-type comb filter with negative feedback
02/21/1989US4807048 Frequency converter for video tape recorder
02/21/1989US4807036 Complex circuit component for a video signal circuit in a television receiver set
02/21/1989US4807014 Three tube color projection television system having multispot blue tube and single-spot red and green tubes
02/21/1989CA1250364A1 Television receiver
02/21/1989CA1250363A1 Color signal demodulation apparatus
02/15/1989EP0303494A2 Clock signal generation system
02/15/1989EP0303450A2 Digital signal transmission apparatus
02/15/1989EP0303242A2 De-interlace filter
02/14/1989US4805035 Color video and audio recording and/or reproducing apparatus
02/14/1989US4805034 Color video signal transmission system
02/14/1989US4805028 Television camera for endoscopes provided with an optical low-pass filter
02/14/1989US4805021 Control circuit for calibrating a delay line
02/14/1989US4805016 Endoscopic system for converting primary color images into hue, saturation and intensity images
02/14/1989US4805011 Luminance signal forming circuit for color tv camera which combines luminance signal derived from primary color signals with luminance signal derived from complementary color signals
02/14/1989US4805010 Still video camera with common circuit for color balance and exposure control
02/14/1989US4804925 DPSK exclusive-OR demodulator
02/14/1989US4804884 Display tube having improved brightness distribution
02/14/1989US4804845 Beam index cathode ray tube
02/14/1989CA1250044A1 Color image processor
02/09/1989WO1989001272A1 Unitary prepolarizing prism assembly for a four color liquid crystal light valve image projector
02/09/1989WO1989001271A1 Projection tv system with concave phosphor surfaces
02/09/1989DE3725230A1 Apparatus for replaying colour video signals
02/08/1989EP0302653A2 Colour display
02/08/1989EP0302500A2 A circuit for processing a color difference signal by utilizing the change of a luminance signal
02/08/1989EP0302454A2 System and method for color image enhancement
02/08/1989CN1003273B Video signal recording and reproducing device
02/07/1989US4803553 Video timing system which has signal delay compensation and which is responsive to external synchronization
02/07/1989US4803549 Low-pass filter for limiting the frequency band of a luminance signal
02/07/1989US4803548 Color video image enhancement
02/07/1989US4803547 For separating luminance/chrominance componentsT?????h)??????????0*0*0*0?0???
02/07/1989US4802735 Light valve projector having an improved bar plate configuration
02/07/1989CA1249880A1 Timing correction for a video signal processing system
02/07/1989CA1249879A1 Vertical detail information restoration circuit
02/01/1989EP0301809A1 Video disc players
02/01/1989EP0301715A1 Display device
02/01/1989EP0301065A1 Color sequential illuminating system for a liquid crystal light valve.
01/1989
01/31/1989US4802159 Information recording disc and information signal recording apparatus therefor
01/31/1989US4802026 Velocity error correcting circuit for time base error corrector
01/31/1989US4802016 Video noise reduction system with signal emphasis preceding FM modulation upper-band luminance
01/31/1989US4802015 Image reproducing apparatus
01/31/1989US4802009 Digitally controlled phase locked loop system
01/31/1989US4802001 Micro filter arrangement in an interlaced solid-state image pickup element
01/31/1989US4802000 Video switching apparatus having interference prevention feature
01/31/1989CA1249682A1 Telephone set
01/26/1989EP0282569A4 Apparatus for correcting video color signals.
01/25/1989EP0300822A1 Noise reduction circuit for chrominance signal of television receiver
01/24/1989US4800448 Image recording/reproducing apparatus
01/24/1989US4800447 Slow-playback for helical scanning type VCR-VTR
01/24/1989US4800446 Video disk recorded with video and digital data and recording/reproducing apparatus therefor
01/24/1989US4800432 Video Difference key generator
01/24/1989US4800428 Circuit arrangement for a television receiver comprising a video text decoder