Patents
Sitemap › H04 - Electric communication technique › H04N - Pictorial communication, e.g. television › H04N 7 - Television systems
Patents for H04N 7 - Television systems (274,023)
03/1990
03/21/1990CN1040721A Enchanced tv system using transmitted error signals
03/20/1990US4910798 Providing a transfer function
03/20/1990US4910772 Video scrambling apparatus and method based on space filling curves
03/20/1990US4910771 Television signal converter
03/20/1990US4910767 Impulse pay per view television receiver system for communicating
03/20/1990US4910661 Method and apparatus for decorating cakes and other foods
03/20/1990US4910609 Teleradiology system
03/20/1990US4910608 Imagery data compression mechanism employing adaptive vector quantizer
03/20/1990US4910604 Image transmission apparatus
03/20/1990US4910595 Teletext decoders
03/20/1990US4910594 Method and apparatus for adaptively compressing a video signal in accordance with the valves of individual pixels
03/20/1990US4910591 Side and rear viewing apparatus for motor vehicles
03/20/1990US4910586 Hybrid DPCM codec for composite color television signals
03/20/1990US4910585 Frequency selective video signal intraframe processor
03/20/1990US4909600 For use in a video system
03/20/1990CA1266912A1 Method and apparatus for coding motion image signal
03/15/1990DE3831277A1 Method for storing and reproducing video signals
03/15/1990DE3831103A1 Transmission system
03/15/1990DE3829925A1 Optical probe for 3D measurement of teeth in the buccal cavity
03/15/1990DE3829816A1 Digital image processing device
03/14/1990EP0358625A2 Process for forming a field of movement vectors for transmission of information relating to moving pictures
03/14/1990EP0358624A2 Process for transmitting information relating to moving pictures
03/14/1990EP0358267A2 Picture motion measurement
03/14/1990EP0357944A1 Diagnostic dental X-ray installation for carrying out a panoramic tomography of a patient's jaw
03/14/1990EP0357908A2 Circuit for recognizing picture frames of C,D and D2-Mac packet signals
03/14/1990CN1040476A In-band controller
03/14/1990CN1040475A High definition television transmission and reception system with reduced data throughput
03/14/1990CN1007203B Wide band signal space coupling arrange ments
03/13/1990US4908875 Adaptive thresholding technique
03/13/1990US4908862 Encoding system capable of accomplishing a high efficiency by anterior and/or posterior processing to quantization
03/13/1990US4908860 System for the secret transmission of audio signals and television receiver for receiving such signals
03/13/1990US4908859 Receiver access interface to service components in television channel
03/13/1990US4908842 Flash synchronized gated sample clock generator
03/13/1990US4908834 High security pay television system
03/13/1990US4908707 Video cassette recorder programming via teletext transmissions
03/13/1990US4908706 Teletext decoder arrangements
03/13/1990US4908704 Method and apparatus for obtaining an object image and distance data of a moving object
03/13/1990US4908700 Display control apparatus for displacing and displacing color image data
03/08/1990WO1990002469A1 System for adaptively generating signal in alternate formats as for an edtv system
03/08/1990WO1990002468A1 Enhanced tv system using transmitted error signals
03/08/1990WO1990002467A1 Interactive video communication assembly
03/08/1990WO1990002466A1 Teleconference facility with high resolution video display
03/08/1990WO1990002465A2 Hierarchically range adaptive coding method for signals, especially suitable for picture analysis and codings
03/08/1990WO1990002453A1 Apparatus and method for monitoring television viewers
03/08/1990WO1990002370A1 Remote operated vehicle control
03/07/1990EP0357386A2 Image encoding apparatus
03/07/1990EP0357281A2 High definition TV system
03/07/1990EP0357144A1 EDTV system
03/07/1990EP0357010A2 Method of identifying spectra
03/07/1990EP0356903A2 Television transmission system having improved separation of audio and video spectra
03/07/1990EP0356432A1 Digital image noise suppression method using svd block transform
03/06/1990US4907288 Image contrast enhancement arrangement
03/06/1990US4907273 High security pay television system
03/06/1990US4907269 Process and circuit layout for the recognition of an identification sign (signum) contained in a video signal
03/06/1990US4907218 Multiplex signal processing apparatus
03/06/1990US4907101 Method and apparatus for digital data transmission and/or recording and playback
03/06/1990US4907087 Transmission of signals through analog channels using adaptive frequency modulation
03/06/1990US4907081 Compression and coding device for video signals
03/06/1990US4907071 Method of color correction of video signals
03/06/1990US4907069 Two-channel compatible HDTV system
03/06/1990CA1266525A1 Information display scheme for subscribers of a subscription television system
03/06/1990CA1266520A1 Restoring framing in a communications system
03/05/1990WO1990004904A1 Television receiver
03/01/1990DE3828485A1 Videotelephone
02/1990
02/28/1990EP0356200A1 Video scrambling system
02/28/1990EP0356105A2 Image processing system for teleconference system
02/28/1990EP0356055A1 Interference suppression for transmitted signals and demodulation of vestigial sideband signals
02/28/1990EP0355919A1 Device for synchronizing on digital data packets, and playback device comprising the same
02/28/1990EP0355894A1 Determination of liquid flow features by a spatial temporal method
02/28/1990EP0355838A2 Visual telephone apparatus
02/28/1990EP0355697A2 Multimedia bidirectional broadcast system
02/28/1990EP0355567A2 Date and time correcting device and method therefor
02/28/1990EP0083352B1 Colour television system
02/28/1990CN1040121A Frequency selectiv video signal intraframe
02/27/1990US4905280 High security videotext and videogame system
02/27/1990US4905278 Scrambling of analogue electrical signals
02/27/1990US4905085 Synchronous sampling system
02/27/1990US4905084 Compatible and spectrum efficient high definition television
02/27/1990US4905080 Apparatus for collecting television channel data and market research data
02/27/1990US4904962 Gated high stability LC stabilized oscillator
02/27/1990US4903705 Digital radiography apparatus
02/22/1990WO1990001853A1 Side and rear viewing apparatus for motor vehicles
02/22/1990WO1990001851A1 Transmission apparatus
02/22/1990WO1990001830A1 Interference suppression for transmitted signals and demodulation of vestigial sideband signals
02/22/1990WO1990001744A1 Maskable bilevel correlator
02/22/1990DE3828269A1 Method for the coded transmission of videotelephone signals
02/22/1990DE3828115A1 Method for coding information of one, two or more channels and/or frequency reduction of the alternating coding current or currents and transmission of the latter
02/22/1990DE3828100A1 Method for coding information of one, two or more channels and/or frequency reduction of the alternating coding current or currents and transmission of the latter
02/22/1990DE3827928A1 Videotelephone
02/21/1990EP0354964A1 Teletext receiver
02/20/1990US4903317 Image processing apparatus
02/20/1990US4903297 Restricted access television transmission system
02/20/1990US4903269 Error detector for encoded digital signals
02/20/1990US4903138 Method of and apparatus for eliminating interblock distortion due to compressed image data
02/20/1990US4903131 Method for the automatic correction of errors in image registration during film scanning
02/20/1990US4903128 Method and device for the reduction of noise generated by a digital image encoder/decoder operating by blocks
02/20/1990US4903126 Method and apparatus for tv broadcasting
02/20/1990US4903125 Method and apparatus for conveying information signals
02/20/1990US4903124 Image information signal transmission apparatus
02/20/1990US4903019 Sampling frequency converter for converting a lower sampling frequency to a higher sampling frequency and a method therefor
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