Patents for H04N 7 - Television systems (274,023)
04/1990
04/17/1990US4918718 Quadrature amplitude modulation with line synchronization pulse for video telephone
04/17/1990US4918524 HDTV Sub-band coding using IIR filter bank
04/17/1990US4918523 Digital video formatting and transmission system and method
04/17/1990US4918522 Method of taking pictures of a quick-moving object by means of video method
04/17/1990US4918517 System and process for video monitoring a welding operation
04/17/1990US4918516 Closed circuit television system having seamless interactive television programming and expandable user participation
04/17/1990US4918515 Compatible television transmission system with separate preemphasis path within single channel
04/17/1990CA1267970A1 Real-time video signal processing device capable of typically executing interframe coding
04/14/1990CA2000709A1 Compatible extended-definition television
04/12/1990DE3933706A1 Verfahren und vorrichtung zum neukalibrieren der farbsalven eines farbfernseh-videosignals Method and device for recalibrate the color salvos of a color television video signal
04/12/1990DE3933488A1 Transmission system for video telephone
04/12/1990DE3932696A1 Video recorder code reading circuit for preprogramming - includes demodulation stage, compares stored and transmitted code data, also displays title
04/12/1990DE3834024A1 System for transmitting colour television signals
04/11/1990EP0363081A2 Impulse pay per view programming distribution control system
04/11/1990EP0362940A2 Teletext decoders
04/11/1990EP0362737A1 Apparatus and method for converting pictures in video signals
04/11/1990EP0362610A2 Videophone system
04/11/1990EP0362427A1 X-ray diagnostic apparatus with a detector for the average image brightness
04/11/1990EP0194289B1 Information display scheme for subscribers of a subscription television system
04/11/1990CN1041254A Transmission system
04/11/1990CA2000294A1 Method and apparatus for improving vertical definition of a television signal by scan conversion
04/11/1990CA2000292A1 High definition b-mac television signal transmission system
04/10/1990US4916737 Secure anti-piracy encoded television system and method
04/10/1990US4916736 Method and apparatus for encrypting and decrypting time domain signals
04/10/1990US4916640 Video image processing system
04/10/1990US4916544 Method and device for compression by the conditional encoding of digital image signals without loss of data
04/10/1990US4916539 Communications system having receivers which can be addressed in selected classes
04/10/1990US4916538 Apparatus and methods for enhancing a video display
04/10/1990US4916537 Image information signal transmitting system
04/10/1990US4916533 Endoscope insertion direction detecting method
04/10/1990US4916532 Television local wireless transmission and control
04/10/1990US4916525 High definition TV system
04/10/1990CA1267721A1 Apparatus for an efficient coding of television signals
04/05/1990WO1990003706A1 Television programme distribution system
04/05/1990WO1990003705A1 Video signal processing and video stores
04/05/1990WO1990003704A1 Slow motion video signal generation
04/05/1990WO1990003619A1 Method and device for estimation of motion in animated image sequences
04/05/1990DE3833670A1 Bildtelefonanlage Videophone system
04/05/1990DE3833367A1 Processor for real-time transformation coding of video signals
04/04/1990EP0361947A2 Synchronous sampling system
04/04/1990EP0361761A2 Digital video encoder
04/04/1990EP0361747A2 A sampled data phase locking system
04/04/1990EP0361565A2 High-definition television with frequency multiplexing
04/04/1990EP0361564A2 High-definition television signal transmission and reception with time and frequency multiplexing
04/04/1990EP0361563A2 High-definition television channel with time and frequency multiplexing
04/04/1990EP0361384A2 Variable rate coder
04/04/1990CN1041076A Widescreen television signal processor system with interpolator for reducing artifacts
04/03/1990US4914745 Method of correcting image errors
04/03/1990US4914695 Method and apparatus for frequency control of multiple oscillators using a single frequency-locked-loop
04/03/1990US4914694 Modifying a television signal to inhibit recording/reproduction
04/03/1990US4914675 Apparatus for efficiently packing data in a buffer
04/03/1990US4914520 Video transfer method using time-spaced interleaved fields
04/03/1990US4914515 Method of transmitting update information for a stationary video picture
04/03/1990US4914513 Multi-vision component alignment system
04/03/1990US4914508 Method and system for compressing and statistically encoding color video data
04/03/1990US4914505 High definition television system
04/03/1990US4914289 Article inspection system for analyzing end and adjacent sides
03/1990
03/29/1990DE3931411A1 Simultaneous transmission system for digital data and television - uses time compression of colour and brightness components prior to multiplexing
03/29/1990DE3832563A1 Memory arrangement for a narrow-band picture transmission device
03/29/1990DE3831994A1 Antenna system
03/28/1990EP0360778A2 A method and a device for jamming television signals
03/28/1990EP0360698A1 Movement estimation process and device in a moving picture sequence
03/28/1990EP0360670A1 Method for quantizing with a variable threshold with a transform coding for the transmission of picture signals
03/28/1990EP0360615A2 Embedment of data in a video signal
03/28/1990EP0360502A1 Efficient image signal coding system
03/28/1990EP0360413A2 Slow motion video signal generation
03/28/1990EP0360155A2 Image transformation method and device
03/28/1990EP0360026A1 Two-way vision device
03/28/1990CN1040898A System for adaptively generating signal in alternate formats as for edtv system
03/28/1990CN1040896A Improvements in interactive video systems
03/28/1990CN1007398B Synchronization recovery in communications system
03/28/1990CN1007395B Switch dividing device for common reception
03/27/1990USRE33189 Security system for SSTV encryption
03/27/1990US4912775 RF converter circuit
03/27/1990US4912760 Off-premises cable television channel interdiction method and apparatus
03/27/1990US4912721 Cable television spread spectrum data transmission apparatus
03/27/1990US4912691 Video stabilizer
03/27/1990US4912668 Mono-dimensional reverse cosine transform computing device
03/27/1990US4912556 Apparatus for compensating contour of television signal
03/27/1990US4912555 Television receiver including a teletext decorder
03/27/1990US4912553 Wideband video system for single power line communications
03/27/1990US4912549 Video signal synchronization system as for an extended definition widescreen television signal processing system
03/27/1990US4911543 Microscope viewing apparatus for viewing a specimen image and an optical overlay pattern image in a comparison manner
03/27/1990CA1267218A1 Video encryption system
03/22/1990WO1990003085A1 Synchronization system for an extended definition widescreen television signal
03/22/1990WO1990003084A1 Widescreen television signal processor system with interpolator for reducing artifacts
03/22/1990WO1990003082A1 Transmission system
03/22/1990WO1990002937A1 Inspection of container finish
03/22/1990DE3831054A1 Method for the digital coding of information of one, two or more channels and/or reducing the frequency of the alternating coding current or currents and transmission thereof
03/21/1990EP0359729A2 Encryption with subsequent source coding
03/21/1990EP0359660A1 Optical control of micro piercings in turbine blades
03/21/1990EP0359334A2 High-definition television system
03/21/1990EP0359325A1 Device for transmitting data words representing a digitized analog signal and device for receiving the transmitted data words
03/21/1990EP0359312A1 Television standard converting apparatus
03/21/1990EP0359267A2 Method for generating radiation image signals
03/21/1990EP0359094A1 System for transmitting a picture signal with a high temporal and spatial resolution
03/21/1990EP0358911A2 Image recognition audience measurement system
03/21/1990EP0358910A2 Image recognition system and method
03/21/1990EP0358828A2 Scanning equalization radiography
03/21/1990CN1040722A High definition telenision transmission and reception system with improved motion estimator and with reduced data throughput