Patents for H04N 7 - Television systems (274,023)
10/1988
10/05/1988EP0056402B1 Adaptive reconstruction of information signals in a plural channel system
10/04/1988US4776038 Automatic air/cable mode selection apparatus for a television tuner
10/04/1988US4776030 Block quantizer for transform coding
10/04/1988US4776029 Method of compressing image signals
10/04/1988US4776023 Pattern inspection method
10/04/1988US4776013 Method and apparatus of encryption of optical images
10/04/1988US4776010 Power supply control circuit in subscriber's terminal for control unit in subscriber's communication system
10/04/1988US4775986 DPCM decoding circuit for digital samples
10/04/1988US4775935 Video merchandising system with variable and adoptive product sequence presentation order
10/04/1988US4775898 Capable of setting the frame and the field mode
10/04/1988US4775853 Device and installation for the instantaneous detection of one or more physical phenomena having a character of risk
10/04/1988CA1242794A1 Scrambling method for television
10/04/1988CA1242793A1 Key signal encryption and distribution system for controlling scrambling and selective, remote descrambling of television signals
09/1988
09/28/1988EP0284427A2 Method and apparatus for video signal processing
09/28/1988EP0284266A2 Improvements in television
09/28/1988EP0284161A2 Source encoder for video pictures
09/28/1988EP0284019A2 Method for producing frequency and/or phase shifts in alternating currents, used in particular for quadrature amplitude modulation (QAM) and for taking samples
09/28/1988EP0283798A2 Compression and decompression of column-interlaced, row-interlaced graylevel digital images
09/28/1988EP0283715A2 Method for coding image signals
09/28/1988EP0271540A4 Mac format with alternating dc level and clock recovery signals.
09/28/1988CN88100286A Disc removal end wall structure with safety features
09/27/1988US4774587 Still video transceiver processor
09/27/1988US4774577 Analog-to-digital conversion apparatus for video signal
09/27/1988US4774574 Adaptive block transform image coding method and apparatus
09/27/1988US4774572 Video scan conversion
09/27/1988US4774562 Image transmission system with preview mode
09/27/1988US4774507 Special video effect system
09/27/1988US4773204 Cap applying apparatus
09/22/1988WO1988007312A1 Interactive microscopic image display system and method
09/22/1988WO1988007311A1 Error correction of digital image data by means of image redundancy
09/21/1988EP0283159A1 Electronic image processing
09/21/1988EP0283077A1 Apparatus for decoding dual binarily coded signals
09/21/1988EP0282569A1 Apparatus for correcting video color signals.
09/21/1988CN88101239A Television system in which digitalised picturue signals subjected to transform coding are transmitted from encoding station to decoding station
09/20/1988US4773097 Image analyzing apparatus
09/20/1988US4772961 Video signal reproducing apparatus
09/20/1988US4772956 Dual block still video compander processor
09/20/1988US4772947 Method and apparatus for transmitting compression video data and decoding the same for reconstructing an image from the received data
09/20/1988US4772946 Method for data reduction of digital picture signals by vector quantization of coefficients acquired by orthonormal transformation by means of a symmetrical, nearly cyclical Hadamard matrix
09/20/1988US4772945 Surveillance system
09/20/1988US4772870 Power line communication system
09/20/1988CA1242270A1 Noise reduction circuit for television multi-channel sound
09/20/1988CA1242263A1 Switching system with video switching matrix
09/15/1988DE3706749A1 Method for improving the image quality in progressive digital still picture transmission
09/14/1988EP0282347A2 Low-power multi-function cellular television system
09/14/1988EP0282279A2 Apparatus for compressing and/or expanding time base
09/14/1988EP0282183A1 Aircraft service systems and methods
09/14/1988EP0282135A1 Television system in which digitalised picture signals subjected to a transform coding are transmitted from an encoding station to a decoding station
09/14/1988EP0282106A1 System for synchronizing with a semi-numerical signal
09/14/1988CN87217226U Distributor for satellite tv receiving power
09/13/1988US4771469 Means and method of representing an object shape by hierarchical boundary decomposition
09/13/1988US4771458 Secure data packet transmission system and method
09/13/1988US4771457 Subscription television system
09/13/1988US4771456 Cable television channel selector/descrambler for use with cable-ready video applicances
09/13/1988US4771344 System for enhancing audio and/or visual presentation
09/13/1988US4771331 Motion compensating field interpolation method using a hierarchically structured displacement estimator
09/13/1988CA1242023A1 Video signal compressing and coding apparatus
09/07/1988WO1988006826A1 Access systems
09/07/1988WO1988006775A1 Improvements in interactive video systems
09/07/1988EP0281440A1 Signal transmission apparatus, especially for video signals
09/07/1988EP0281427A2 Radio controlled toy
09/07/1988EP0281387A2 Sub-nyquist sampling encoder and decoder
09/07/1988EP0281223A2 Secure messaging systems
09/07/1988EP0280932A1 Video system for displaying lower resolution video signals on higher resolution video monitors
09/07/1988EP0224583A4 Apparatus for adapting a digitized signal processing system for block processing with minimal blocking artifacts.
09/06/1988US4769838 Community antenna television reception controlling apparatus
09/06/1988US4769833 Wideband switching system
09/06/1988US4769826 Video encoding apparatus
09/06/1988US4769778 Circuit arrangement comprising a matrix-shaped memory arrangement for digital filtration of image signals in row and column directions
09/06/1988US4769702 Method for the compression of digital images and device for the application of a method of this type
09/06/1988US4769701 Stereo X-ray installation
09/06/1988US4769698 Interactive microscopic image display system and method
08/1988
08/31/1988EP0280574A2 Method and apparatus for predictive coding
08/31/1988EP0280316A2 Video image transforming method and apparatus
08/31/1988EP0280314A2 Image signal compressing method by vector quantization
08/31/1988EP0280313A2 Method of compressing image signals by vector quantization
08/30/1988US4768229 In a satellite receiver
08/30/1988US4768228 Data acquisition device
08/30/1988US4768090 Surveillance device using video camera
08/30/1988US4768089 Endoscopic system
08/30/1988US4768087 Education utility
08/30/1988CA1241434A1 Method and apparatus for transferring data for digitally controlling video equipment
08/29/1988EP0260307A4 A photographic system.
08/25/1988WO1988006390A1 Coder
08/25/1988WO1988006326A1 Vehicle detection through image processing for traffic surveillance and control
08/24/1988EP0279800A2 Method and means for coding and decoding picture information
08/24/1988EP0279625A2 Signal transmission system
08/24/1988EP0279608A2 Two way communication systems
08/24/1988EP0279444A2 High-speed digital image processing apparatus
08/24/1988EP0279411A2 Method and apparatus for forming multi-program video signals
08/24/1988EP0279410A2 Interleaved video system, method and apparatus
08/24/1988EP0279053A1 Method for the transmission and reproduction of sequences of television pictures
08/24/1988EP0278955A1 Motion detection apparatus employing information contained in the frequency spectrum of a television signal.
08/23/1988US4766495 Phase error correcting apparatus
08/23/1988US4766494 Line number having circuit for a sampled interlaced television signal
08/23/1988US4766491 Adaptor for a video monitoring system
08/23/1988US4766490 Method of and device for estimating motion in a sequence of pictures
08/23/1988US4766489 Electronic endoscope with image edge enhancement
08/23/1988CA1241121A1 Process for the parallel-series code conversion of a parallel digital train and a device for the transmission of digitized video signals using such a process
08/23/1988CA1241116A1 Method of and device for speech signal coding and decoding by vector quantization techniques