Patents
Patents for H04N 9 - Details of colour television systems (80,494)
05/1990
05/08/1990US4924356 Illumination system for a display device
05/08/1990US4924318 Lattice elimination assembly for a television wall
05/08/1990US4924316 Solid color pickup apparatus
05/08/1990US4924315 Video signal processing system
05/08/1990US4924313 Still picture signal processing apparatus having high resolution image pickup device with 4-to-1 interlace
05/03/1990WO1990004906A1 Adaptive pal or nstc comb filter
05/02/1990EP0366402A2 Digital audio signal recording/reproducing method and apparatus for carrying out the same
05/02/1990EP0366245A2 Color display system and tube having an electron gun with dual electrode modulation
05/02/1990EP0260311B1 Apparatus in cathode ray tubes for reducing the magnetic field strength in the tube environment
05/02/1990CN1041856A Apparatus for combining and separating constituent components of video signal
05/02/1990CN1041828A Image projection arrangement
05/01/1990US4922334 Color filter arrangement for an image pickup device having complementary color elements which overlap at boundaries between picture elements
05/01/1990US4922333 Video copying apparatus spectrally-responsive to slides or negatives
05/01/1990US4922331 Color video signal reproducing apparatus having trap circuit and comb-filter for filtering a chrominance signal band of a wide band luminance signal
05/01/1990US4922330 Method and apparatus for automatically adjusting white balance
05/01/1990US4922329 Apparatus for coding a digital component video signal
05/01/1990US4922158 Polychromatic CRT with crystalline semiconductor screen
05/01/1990CA1268540A2 Digital television receiver with digital video processing circuit
05/01/1990CA1268539A2 Digital television receiver with digital video processing circuit
05/01/1990CA1268538A1 Nonvolatile memory system for digital television receiver
05/01/1990CA1268516A1 Three picture tube device for projecting a television image onto a screen
04/1990
04/30/1990CA2001868A1 Frame sequential colour display system
04/25/1990EP0365000A1 CCD image sensor with vertical overflow drain
04/25/1990EP0364967A2 Luminance/chrominance signal separation circuit for pal color television signal
04/25/1990EP0364455A1 An improved method of colorizing black and white footage
04/24/1990US4920425 Video signal recording and reproducing apparatus
04/24/1990US4920410 Drive method for synchronizing scanning and modulation of flat-configuration color CRT
04/24/1990US4920409 Matrix type color liquid crystal display device
04/24/1990US4920408 Circuit for separating composite color television signal into luminance signal and chrominance signal
04/24/1990US4919518 Multi-screen projector
04/24/1990CA1268065A1 Fresnel lens for projection screens
04/19/1990WO1990004311A1 Apparatus for combining and separating components of a video signal
04/19/1990WO1990004305A1 A method and an apparatus for preventing unauthorised recording on tapes of video programmes
04/19/1990DE3934762A1 CRT brightness control circuit - uses combined parabolic signals obtained from horizontal and vertical deflection signals
04/18/1990EP0364230A2 A colour video signal processing apparatus
04/18/1990EP0364225A1 Color signal processing apparatus
04/18/1990EP0364047A1 Method for preventing unauthorized recording on tapes of video programmes
04/18/1990EP0364043A1 Image projecton device
04/18/1990EP0364039A1 Color television projection system, color recombination system and color selection system for use in such a projection system
04/18/1990EP0363969A2 Color image reading apparatus
04/18/1990EP0363965A1 Method of recording fine color video signal on optical recording media and method of reproducing thus recorded fine color video signal
04/18/1990EP0363767A1 Colour image projection apparatus having liquid crystal light valves designed for reduced crosstalk between picture elements
04/18/1990EP0363407A1 Projector.
04/18/1990CN1041500A High-definition television system
04/18/1990CN1041495A Sampled data phase locking system
04/17/1990US4918539 Frequency multiplexing circuit in optical video disc recorder
04/17/1990US4918528 Contour correction device
04/17/1990US4918523 Digital video formatting and transmission system and method
04/17/1990US4918519 Color image sensing apparatus having color balance adjustment
04/17/1990US4918515 Compatible television transmission system with separate preemphasis path within single channel
04/12/1990DE3933706A1 Verfahren und vorrichtung zum neukalibrieren der farbsalven eines farbfernseh-videosignals Method and device for recalibrate the color salvos of a color television video signal
04/11/1990EP0363206A2 A method of and an apparatus for projecting a scanned two- or threedimensional modulated light pattern originating from a light source
04/11/1990EP0362844A2 Crosstalk cancelling circuit for removing crosstalk component from reproduced signal
04/11/1990EP0362776A2 Projection type active matrix liquid crystal display device
04/11/1990EP0362747A2 Circuitry for comb filtering PAL and NTSC video signals
04/11/1990EP0362537A1 Method for compensating the earth-magnetic field in a picture tube
04/11/1990CA2000423A1 Method and apparatus for preventing unauthorized recording on tapes of video programmes
04/10/1990US4916553 Video signal recording and reproducing method and apparatus
04/10/1990US4916548 Video tape recorder for recording/reproducing two-channel component color video signals
04/10/1990US4916531 Color video processing circuitry
04/10/1990US4916529 Imaging device utilizing solid-state image sensors combined with a beam-splitting prism
04/10/1990US4916528 Color stripe filter in color image pickup apparatus
04/10/1990US4916527 Luminance signal/color signal separation circuit
04/10/1990US4916526 Bandwidth control for chrominance and luminance paths in quadrature modulated color television system
04/10/1990EP0353286A4 Method and apparatus for producing a color image.
04/10/1990CA1267684A1 Beam-index type color cathode ray tube device
04/06/1990CA2000318A1 Method of and an apparatus for projecting a scanned two- or three-dimensional modulated light pattern originating from a light source
04/05/1990WO1990003704A1 Slow motion video signal generation
04/05/1990DE3833692A1 Comb filter for separating luminance signal and chrominance signal of a composite PAL colour signal
04/04/1990EP0361947A2 Synchronous sampling system
04/04/1990EP0361938A2 Solid-state image sensing device
04/04/1990EP0361819A2 An apparatus for processing a colour video signal
04/04/1990EP0361804A2 Apparatus for recording and/or reproducing information signals
04/04/1990EP0361747A2 A sampled data phase locking system
04/04/1990EP0361564A2 High-definition television signal transmission and reception with time and frequency multiplexing
04/04/1990EP0361563A2 High-definition television channel with time and frequency multiplexing
04/04/1990EP0361559A2 Image projection arrangement
04/04/1990CN1041043A Image projection arrangement
04/03/1990US4914746 Electronic digital still camera for separately storing component video signals in memory
04/03/1990US4914738 Apparatus for discriminating light source having spectrum peaks
04/03/1990US4914694 Modifying a television signal to inhibit recording/reproduction
04/03/1990US4914661 Method and apparatus for correcting errors in digital signals having phase fluctuations
04/03/1990US4914527 Recording and reproducing digital video and audio signals together with a time code signal which is within user control words of the audio data
04/03/1990US4914523 Optical disk apparatus compatible with different television system standards
04/03/1990US4914522 Reproduction and enlarging imaging system and method using a pulse-width modulated air stream
04/03/1990US4914520 Video transfer method using time-spaced interleaved fields
04/03/1990US4914515 Method of transmitting update information for a stationary video picture
04/03/1990US4914511 Projection color TV using CRTs having interference filters with different number of layers
04/03/1990US4914510 Method for improving the white field uniformity of a projection color TV using CRTs having interference filters, projection color TV and CRTs resulting from the method
04/03/1990US4914509 Color video signal synthesizer
04/03/1990US4914350 Picture display device with interference suppression means
04/03/1990US4913529 Illumination system for an LCD display system
03/1990
03/29/1990DE3831306A1 Demagnetisation circuit
03/28/1990EP0360719A1 Method and apparatuses for recording on a magnetic tape and playback of D2-MAC/packet signals
03/28/1990EP0360615A2 Embedment of data in a video signal
03/28/1990EP0360557A2 Keying of colour video signals
03/28/1990EP0360520A1 Digital video effects apparatus
03/28/1990EP0360413A2 Slow motion video signal generation
03/28/1990EP0360380A2 Separating components of composite digital video signals
03/28/1990EP0360339A2 Circuitry for preparing a synchronizing signal