Patents
Patents for H04N 9 - Details of colour television systems (80,494)
08/1988
08/16/1988US4764809 Apparatus and method for producing a variety of video wipe borders
08/16/1988US4764806 Aplanatic image combiner for use in projection television systems with reduced spherical and coma aberration
08/16/1988US4764670 Color filter arrays
08/16/1988CA1240792A1 Adaptive field or frame store processor
08/16/1988CA1240788A1 Compression of pixels in a reduced-size video image
08/10/1988EP0277808A2 Comb filter circuits
08/10/1988EP0277714A2 Electronic imaging apparatus and method
08/10/1988EP0099406B1 Stereoscopic television system
08/10/1988CN85108684B Signal to noise ration enhancement using baseband signal in an fm television system
08/09/1988US4763283 Color transcoding process permitting the interconnection of two definition equipments of different colors and the corresponding transcoder
08/09/1988US4763206 Apparatus for recording video and audio signals
08/09/1988US4763203 Time base corrector with accurate timing corrector control
08/09/1988US4763202 Time division multiplex video recorder with high resolution
08/09/1988US4763186 Color correction system with monitor for use in recalling color corrections and corresponding method
08/09/1988US4763048 Method and circuit for controlling the operating point of a video amplifier
08/09/1988US4763040 Picture display device
08/09/1988CA1240359A1 Luminescence detecting devices
08/03/1988EP0277019A2 Disk playing method and device
08/03/1988EP0277000A2 Magnetic recording and/or reproducing apparatus
08/03/1988EP0276809A1 Rotary head type recording/reproducing method and apparatus
08/03/1988EP0276786A2 Polychromatic monitor for connection to electric apparata, in particular of numeric type
08/03/1988EP0276343A1 Method and apparatus for PCM recording and reproducing audio signal
08/03/1988CN87108229A Projection television system and display tubes for use therein
08/02/1988US4761694 Apparatus for recording/reproducing a composite video signal with a rotary recording medium and circuit arrangement therefor
08/02/1988US4761692 Method and apparatus for data recording disc playback
08/02/1988US4761690 Video tape recorder with particular format chrominance and luminance information
08/02/1988US4761689 Apparatus for driving a solid state image pickup device
08/02/1988US4761686 TV receiver having freeze field display
08/02/1988US4761685 Apparatus and method for solid-state image sensor element registration adjustment
08/02/1988US4761683 In a scanner system for detecting images on a surface
08/02/1988US4761682 Optical low-pass filter including three crystal plates for a solid-state color TV camera
08/02/1988US4761641 Information display system
08/02/1988CA1239974A1 Beam index type color cathode ray tube
07/1988
07/27/1988EP0275601A1 Projection device and associated display device
07/26/1988US4760489 Video display degaussing apparatus
07/26/1988US4760470 Circuit for replacing dropouts in a video signal
07/26/1988US4760469 Electronic still image camera system with enhanced resolution
07/26/1988US4760468 Color video signal recording and reproducing apparatus
07/26/1988US4760449 Video signal processing apparatus
07/26/1988US4760441 Solid-state color imaging apparatus having color filter array which eliminates vertical color error
07/26/1988US4760331 Spectrum display device
07/20/1988EP0275090A2 Method of recording and reproducing color video signals
07/20/1988EP0275041A2 Multiplex magnetic recording and reproducing apparatus of the rotary head type
07/20/1988EP0274854A1 Cathode ray tube degaussing control circuit
07/20/1988EP0274820A2 Color imaging apparatus
07/20/1988EP0274775A1 Device for and method of substraction imaging with reduction of motion artefacts
07/19/1988US4758903 Apparatus for recording and reproducing video signal and digital signal other than video signal
07/19/1988US4758900 Field/frame conversion method for magnetic picture recording with demodulation, interpolation and de-emphasis after conversion
07/19/1988US4758898 Video signal recording and reproducing apparatus
07/19/1988US4758890 Quantizing television horizontal phase to subcarrier zero crossings
07/19/1988US4758884 Electronically switched field sequential color video display having parallel color inputs
07/19/1988US4758883 Electronic picture camera with reduced memory capacity
07/19/1988US4758882 Chrominance detection circuit comparing the polarity of high frequency signals separated by a field or frame
07/19/1988US4758881 Still video frame store memory
07/19/1988US4758880 Video matte generator
07/19/1988US4758879 Circuit arrangement for controlling an oscillator in a colour television receiver or a video recording and/or reproducing apparatus having a phase alternating subcarrier.
07/19/1988US4758878 Circuit for converting a monochrome test signal to a color video signal
07/19/1988US4758799 Broadband, high speed video amplifier
07/19/1988CA1239481A1 Color coding conversion process for interconnecting two apparatuses with different color definitions and corresponding coding conversion
07/13/1988EP0274255A2 Video disc reproducing device and method of reproducing video information
07/13/1988CN87108261A Vertical supplementary sampling and memory synchronization system used in television picture receiver
07/13/1988CN85101293B Recording and/or replaying apparatus for colour carries signal
07/12/1988US4757391 Helical scan type magnetic recording and reproducing apparatus recording multiple signals on multiple axially displaced tape tracks
07/12/1988US4757390 Video recorder with a magnetic recording medium in the form of a tape
07/12/1988US4757377 Color television image pickup device with a stripe filter parallel to scanning direction
07/12/1988US4757376 Color television image pickup device with a stripe filter parallel to scanning direction
07/12/1988US4757375 Color television image pickup device with a stripe filter parallel to scanning direction
07/12/1988US4757373 Amplifier circuit operative with an adaptive signal compression
07/12/1988US4757231 Beam-index type color cathode ray tube device
07/12/1988CA1239219A1 Digital process and apparatus for convergence correction
07/12/1988CA1239198A1 Am synchronous detecting circuit
07/07/1988DE3644400A1 Circuit for reducing cross-colour
07/06/1988EP0273638A2 Image scanner systems
07/06/1988EP0273476A1 Image projection system
07/06/1988EP0107687B1 Display for a computer
07/06/1988CN85102068A Colour kinescope
07/05/1988US4755889 Audio and video digital recording and playback system
07/05/1988US4755885 Eliminating undesirable noise recordation in image sensing/sound recording device
07/05/1988US4755870 Coloring a black and white signal using motion detection
07/05/1988US4755868 High brightness projection TV system using one or more CRTs with a concave phosphor surface acting to concentrate light into a lens system
07/05/1988US4755768 Amplifier and display using the former
07/05/1988US4755714 Electromagnetic deflection unit for a television picture display tube
07/05/1988CA1238764A1 Production of chlorine dioxide
06/1988
06/29/1988EP0272763A2 Image display apparatus
06/29/1988EP0272719A1 Projection lens system
06/29/1988EP0272634A2 Video signal generating device
06/29/1988EP0165246B1 Image registration system
06/29/1988CN85101121B Recording and/or replaying apparatus for video frequency signal
06/28/1988US4754340 Method of reproducing a chrominance signal from a previously low-range-converted chrominance signal using comb filtering and sampling
06/28/1988US4754339 Information recording disc pre-recorded with address and pseudo address signals
06/28/1988US4754323 Color image pickup device in which the level of a sequential color-difference signal is controlled on the basis of the level of the luminance signal
06/28/1988US4754322 YC-signal separation circuit responsive to magnitude of vertical correlation
06/28/1988US4754321 Integratable color correction circuit
06/28/1988US4754204 Digital apparatus for convergence correction
06/28/1988US4754174 Circuit arrangement for deriving a control signal
06/28/1988US4753519 Optical system for projection television apparatus
06/28/1988CA1238729A1 Color display system
06/23/1988DE3742108A1 Aperture correction method for video signal
06/22/1988EP0271940A2 Picture pick-up device for simultaneously generating interlaced, complementary picture pick-up signals at separate device outputs
06/22/1988EP0271906A2 Color image display tube apparatus