Patents
Patents for H04N 9 - Details of colour television systems (80,494)
03/1988
03/08/1988US4730211 Projection-type color television receiver wherein the center lines of right and left projection lenses intersect a display screen at points which are offset from a point at which the center line of a center projection lens intersects the display screen
03/08/1988US4730210 Wideband analog RGB video processor with negative feedback capability and black level control
03/08/1988CA1233903A1 Method and device for displaying primary colours utilizing input values representative of brightness, saturation and hue of a coloured background
03/08/1988CA1233902A1 Automatic beam current control with an envelope detector for a color television camera tube with a stripe filter
03/02/1988EP0258001A2 Solid-state imaging apparatus
03/02/1988EP0257914A2 Chrominance signal processing circuits
03/02/1988EP0257129A1 Process for the reproduction of television signals with improved image quality
03/02/1988EP0147449B1 Improvements in or relating to optical beam splitters
03/02/1988CN86105443A Colour tv set
03/01/1988US4729042 Clock signal generating circuit for digital signal recording device
03/01/1988US4729041 Information reproducing device with dynamic drop-out compensation inhibiting means
03/01/1988US4729040 Tracking apparatus for playing back rotary magnetic recording medium
03/01/1988US4729028 Television receiver with multipicture display
03/01/1988US4729014 Digital circuit for steepening color-signal transitions
03/01/1988US4729013 Time base error corrector
03/01/1988US4729012 Dual mode television receiver for displaying wide screen and standard aspect ratio video signals
03/01/1988CA1233560A1 Signal processing system with digital-to-analog conversion
03/01/1988CA1233558A1 Digital video signal processing system
03/01/1988CA1233557A1 Adaptive luminance-chrominance separation apparatus
03/01/1988CA1233556A1 Digital vertical beam landing correction circuit
03/01/1988CA1233554A1 Interlace to non-interlace scan converter for rgb format video input signals
03/01/1988CA1233352A1 Television camera with prism mounted imager
02/1988
02/25/1988WO1988001460A2 Improvements in or relating to merged field operation of an image sensor in a still video camera
02/24/1988EP0256579A1 Display tube and colour television projection device comprising such a display tube
02/24/1988EP0256264A2 Method for receiving television signals with a high number of lines
02/23/1988US4727426 Digital television receiver with memory refreshing circuitry
02/23/1988US4727415 Variable direction filter for separation of luminance and chrominance signals
02/23/1988US4727413 Image sensing apparatus
02/23/1988US4727412 Video signal correction system with low chrominance circuit for modifying currections
02/23/1988US4727411 Mirror image generator for composite signals with chroma inversion
02/23/1988US4727284 Light source display for a large picture screen
02/23/1988CA1233245A1 Raster distortion correction for progressive scan television system
02/23/1988CA1233241A1 Vertical detail enhancer for a video display system
02/23/1988CA1233240A1 Video signal recursive filter with luma/chroma separation
02/23/1988CA1233231A1 Filtering system for processing a reduced-resolution video image
02/17/1988EP0255868A2 Split drift ring for focus deflection in light valves
02/17/1988CN87105454A Display tube and colour television projection device comprising such display tube
02/16/1988US4725900 Apparatus employing adjustable modulation index for reducing cross talk between recorded audio and video signals
02/16/1988US4725897 Sound recording system for electronic still camera
02/16/1988US4725896 Magnetic recording apparatus for recording two kinds of mutually different information signals on independent tracks of a magnetic tape
02/16/1988US4725895 Still picture reproduction system with color framing phase synchronization
02/16/1988US4725894 Digital conversion system for a color video signal that is capable of converting an analog composite and an analog component video signal into a digital composite signal and a digital component color signal
02/16/1988US4725881 Method for increasing the resolution of a color television camera with three mutually-shifted solid-state image sensors
02/16/1988US4725880 Color solid-state imaging apparatus wherein one imager receives an image of a first color and another imager receives an offset image of the first color and a second color
02/16/1988US4725879 Chroma responsive inspection apparatus selectively producing analog voltage levels based on the luminance, the phase of the chrominance subcarrier, or the amplitude of the chrominance subcarrier
02/16/1988US4725757 Color television tube incorporating correction of coma defects of small amplitude
02/16/1988CA1232965A1 Magnetic disc reproducing apparatus
02/11/1988WO1988001068A1 Liquid crystal motion picture projector with memory
02/11/1988DE3626089A1 System for distributing reference signals in a television studio
02/09/1988US4724495 Digital formatter, controller, and head assembly for video disk recording system, and method
02/09/1988US4724494 Tracking apparatus responsive to multiple frequency-modulated carriers on different tracks
02/09/1988US4724492 Recording disk data playback apparatus
02/09/1988US4724486 Apparatus for deriving information signals for component television video signal reception
02/09/1988US4724476 Chrominance signal processing apparatus
02/09/1988US4724405 Modulator
02/09/1988US4724395 Median filter for reconstructing missing color samples
02/09/1988US4724364 CRT Control circuit
02/09/1988US4724355 Backside disc flush for light valve projector
02/09/1988US4724354 Image intensifier for producing a color image having a color separation filter sequentially passing visible blue light and its second order wavelengths, visible green light and its second order wavelengths, and visible red light
02/09/1988CA1232679A1 Vtr having automatic carrier detection
02/03/1988EP0255098A1 Novel 8-(lower alkyl) bicyclo [4.2.0] octane derivatives with valuable therapeutic properties
02/03/1988EP0254894A1 Demagnetizing device for a colour television picture tube
02/02/1988US4723175 Video signal reproducing apparatus for reproducing recorded video signal from a magnetic recording medium
02/02/1988US4723170 Camera for recording television, photographic or cinematographic images
02/02/1988US4723158 Method and apparatus for performing scan line diagnostic testing in a video monitor during a last-line overscan of a normal display raster
02/02/1988US4723119 Large-sized color display device
02/02/1988US4723094 Color picture device having magnetic pole pieces
02/02/1988US4722593 Liquid-crystal projector with light beam reduction lens array for improved brightness of image outer portions
02/02/1988CA1232250A1 Bias light supply device for a color tv imaging device using a color separation stripe filter
01/1988
01/28/1988WO1988000783A1 Improvements relating to television
01/27/1988EP0254622A1 Process for generating a standard colour television signal and pick-up device therefor
01/27/1988EP0254217A2 Color film writing system with closed loop control for electronic images
01/27/1988EP0254072A1 Signal phase shift circuit
01/27/1988EP0254062A2 Circuit arrangement for recognizing a video signal
01/27/1988CN85101116B Device for displaying predetermined programme of tv set
01/26/1988US4722007 TV receiver having zoom processing apparatus
01/26/1988US4722006 Clamp circuit for a video signal processor
01/26/1988US4721998 Method and apparatus for processing color video signals
01/26/1988US4721951 Method and apparatus for color selection and production
01/26/1988US4721881 Neutralizing electrode for schlieren dark field light valve
01/26/1988CA1232062A1 Signal-dropout correction circuit for correcting video signals disturbed by signal dropouts
01/26/1988CA1232057A1 Colour television transmission or data storage system
01/21/1988EP0147394A4 Automated encoded signal color image compositing.
01/21/1988DE3722912A1 Verfahren und vorrichtung zur erzeugung von mehreren farben A method and apparatus for generating a plurality of colors
01/20/1988EP0253379A2 Large screen display apparatus
01/20/1988EP0253296A2 Frequency converter for video tape recorder
01/20/1988EP0253218A2 Colour television transmission system
01/20/1988EP0253192A2 Magnetic recording and reproducing device
01/20/1988EP0253030A1 Cathode ray tube display with combined degauss and surge limiting circuit
01/20/1988CN87103859A Device for reproducing picture
01/20/1988CN87103858A Picture reproducing apparatus
01/20/1988CN87103855A Picture reproducing apparatus
01/20/1988CN87103833A Picture reproducer
01/20/1988CN85106834B Circuit for the synchronisation of the reference carrier oscillator in pal colour tv receiver
01/19/1988US4720751 Video recording apparatus which records chrominance information at a lower frequency band coincident with the luminance signal frequency band
01/19/1988US4720745 Method and apparatus for enhancing video displays
01/14/1988WO1988000422A1 Motion detection apparatus employing information contained in the frequency spectrum of a television signal
01/12/1988US4719522 Method of magnetic recording
01/12/1988US4719520 Method and apparatus for setting recording current in perpendicular magnetic recording apparatus
01/12/1988US4719519 Component video signal magnetic recording and reproducing apparatus including means for expanding and compressing luminance and color difference signals