Patents
Sitemap › H04 - Electric communication technique › H04N - Pictorial communication, e.g. television › H04N 9 - Details of colour television systems
Patents for H04N 9 - Details of colour television systems (80,494)
11/1991
11/05/1991US5063439 Solid state pickup system having improved color reproducibility
11/05/1991US5063438 Three dimensional encoding system for color television
11/05/1991US5063437 Method and apparatus for processing a color video signal
11/05/1991US5062689 Electrostatically actuatable light modulating device
11/05/1991CA1291816C Method of and apparatus for recording and/or reproducing a picture signal and an associated audio signal in/from a record carrier and record carrier obtained by means of the method
11/05/1991CA1291811C Write clock generator for time base corrector
11/02/1991WO1991017034A1 Variable opening die means
10/1991
10/31/1991WO1991016793A1 Process and device for image signal recording or reproduction
10/31/1991WO1991016792A1 Video recorder with improved colour rendering
10/31/1991WO1991016790A1 Video recorder with improved colour rendering
10/31/1991WO1991014345A3 Television set with separate processing of luminance signals and chrominance signals
10/31/1991DE4013255A1 Colour video signal processing circuit - has four quadrant multipliers coupled to difference amplifier with current reflection circuits
10/31/1991DE4013078A1 Videorecorder mit verbesserter farbaufzeichnung VCR with improved color recording
10/31/1991DE4012963A1 Video recorder with improve colour quality - with two different heads for light density and colour difference signals respectively
10/30/1991EP0454591A2 Separable diamond shaped multidimensional filters for composite video encoding/decoding applications
10/30/1991EP0454551A1 Method for displaying images on a dot matrix colour screen
10/30/1991EP0454538A1 Colour matrix display with interlaced addressing
10/30/1991EP0454455A2 Television apparatus
10/30/1991EP0454451A2 Television apparatus
10/30/1991EP0454417A2 Image signal processing apparatus
10/30/1991EP0454414A2 Video signal display
10/30/1991EP0454409A1 Wavelength selective phase grating optical low-pass filter
10/30/1991EP0454408A2 Digital video signal recording/reproducing apparatus
10/30/1991EP0454175A2 White balance adjusting apparatus automatically adjusting white balance on the basis of color information signal obtained from image-sensing device
10/30/1991EP0454115A2 Television signal converting apparatus
10/30/1991EP0454085A2 Method and apparatus for correcting color in graphic recorders
10/30/1991EP0453934A2 Raster correction device in a television set
10/30/1991EP0453552A1 Digital compression method and system with improved coding efficiency
10/29/1991US5062009 Recording and/or reproducing apparatus having, in addition to a recording medium, memory means for memorizing information reproduced from the recording medium
10/29/1991US5062005 Videodisc reproducing apparatus
10/29/1991US5062004 Digital signal processing circuit for video tape recorder
10/29/1991US5061993 Projection television display device
10/29/1991US5061880 Method of driving image display device
10/29/1991US5061041 Liquid crystal motion picture projector with memory
10/28/1991WO1991017631A1 Method and apparatus for synchronization in a digital composite video system
10/28/1991CA2041017A1 Method and apparatus for correcting color in graphic recorders
10/24/1991DE4012344A1 TV signal recording system coping with letter-box format - uses notch filter adjusted via code mode for additional signals
10/23/1991EP0453285A2 Time base error signal generating apparatus
10/23/1991EP0453037A2 Circuit for recognising the transmission norm of a colour television signal
10/23/1991EP0452933A2 An image reading method and apparatus therefor
10/23/1991EP0452770A2 Image pickup apparatus
10/23/1991EP0452473A1 A hierarchical storage and display method for high resolution digital images in a multiuse environment.
10/23/1991EP0452438A1 Light control devices with liquid crystals
10/23/1991CN1014477B Colour display tube
10/22/1991US5060058 Modulation system for projection display
10/22/1991US5060057 Intraframe processor and luminance-chrominance adaptive separator apparatus
10/22/1991US5060056 Luminance signal/color signal separating circuit and noise reduction circuit using a comb filter
10/22/1991US5060054 Device for controlling a color video display
10/22/1991US5060053 Information signal processing device
10/22/1991US5059872 Digital convergence correction device
10/22/1991CA1291261C Video theater system
10/22/1991CA1291260C Coloring a black and white signal using motion detection
10/22/1991CA1291203C Projection television system with display tubes having an interference filter
10/17/1991WO1991015931A1 Stacked display panel construction and method of making same
10/17/1991WO1991015928A2 Displays having improved contrast
10/17/1991WO1991015923A1 Projection systems
10/17/1991WO1991015921A1 Process and device for modifying a zone of successive images
10/17/1991WO1991015843A2 Video display systems
10/17/1991CA2079790A1 Displays having improved contrast
10/16/1991EP0452066A2 Video signal processing apparatus
10/16/1991EP0451415A2 Video signal recording-reproduction device
10/16/1991EP0271547B1 System for noise reduction
10/16/1991EP0261137B1 Tv picture motion measurement
10/16/1991CN1055445A Cathode-ray tube having improved 16x9 aspect ratio faceplate
10/15/1991US5057994 Control system for industrial plant
10/15/1991US5057934 Circuit for tape duplication in video tape recorder
10/15/1991US5057932 Audio/video transceiver apparatus including compression means, random access storage means, and microwave transceiver means
10/15/1991US5057922 Black level clamping circuit including video output stage
10/15/1991US5057913 Hard copy simulator with stored data to correct for lighting conditions
10/15/1991US5057912 Cathode-ray tube with interference filter and projection television system employing same
10/15/1991US5057911 System and method for conversion of digital video signals
10/15/1991US5057739 Matrix array of cathode ray tubes display device
10/15/1991CA1290800C Large screen display apparatus having a modular structure
10/09/1991EP0451034A1 Device for image projection
10/09/1991EP0450952A2 Optical system for a colour picture display
10/09/1991EP0450895A2 Apparatus for recording and reproducing information
10/09/1991EP0450867A2 Hue compensation apparatus for a color hard copy machine
10/09/1991EP0450857A2 D.c. restore for a remote video interconnect
10/09/1991EP0450745A1 Composite disk playing method
10/09/1991EP0450445A2 Digital television signal processing circuit with orthogonal output clock
10/09/1991EP0450025A1 Temperature compensation of liquid-crystal parameters.
10/09/1991EP0449916A1 Process for storing colour television signals
10/09/1991CN1055273A Display of projection tv set
10/09/1991CN1014294B Vidio display system for displaying wide and standard, aspect radio vidio signals
10/08/1991US5055939 Method system & apparatus for synchronizing an auxiliary sound source containing multiple language channels with motion picture film video tape or other picture source containing a sound track
10/08/1991US5055938 Reproduction apparatus for reproducing successive image signals of different frequency bands
10/08/1991US5055928 Digital video frame recorder with video display test pattern signal generator
10/08/1991US5055922 Color tv projection lens system
10/08/1991US5055921 Color reading line sensor
10/08/1991US5055920 Still picture decoder for color television signals having a phase changing color carrier
10/08/1991US5055918 Pixel image enhancer
10/08/1991US5055917 Output apparatus for image signals
10/08/1991US5054910 Projection apparatus
10/03/1991WO1991015080A1 Beam current limiting arrangement having a peak amplitude responsive threshold
10/03/1991WO1991015078A1 Method and apparatus for improving the color rendition of hardcopy images from electronic cameras
10/02/1991EP0449656A2 Time domain television noise reduction system
10/02/1991EP0449626A1 Degaussing circuit
10/02/1991EP0449508A2 Drive circuit for a liquid crystal display
10/02/1991EP0449501A2 Time base corrector
10/02/1991EP0449370A2 Circuit arrangement for steepening signal edges
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