Patents
Sitemap › H04 - Electric communication technique › H04N - Pictorial communication, e.g. television › H04N 7 - Television systems
Patents for H04N 7 - Television systems (274,023)
12/1981
12/10/1981WO1981003593A1 Television scrambling and unscrambling method and apparatus
12/10/1981EP0032499A4 Optical illumination and distortion compensator.
12/09/1981EP0041121A1 Method of transmitting additional information
12/08/1981US4305101 Method and apparatus for selectively recording a broadcast
12/08/1981US4305097 Automated opto-electronic test system for quality control of two-dimensional elements with high geometric figure density
12/08/1981CA1114083A1 Picture/audio information transmission system
12/08/1981CA1114059A1 Television system with two fm soundcarriers
12/08/1981CA1114056A1 Television picture special effect system using digital memory techniques
12/08/1981CA1114054A1 Tv game apparatus
12/01/1981US4303945 Image motion compensation for a TV sensor system
12/01/1981US4303942 Sampling clock reproducing apparatus
12/01/1981US4303941 Videotex system
12/01/1981US4303937 Communication system for supplementing off-air or cable TV signals with locally generated video messages
11/1981
11/24/1981US4302776 Digital still picture storage system with size change facility
11/24/1981US4302775 Digital video compression system and methods utilizing scene adaptive coding with rate buffer feedback
11/24/1981US4302771 Wire broadcasting system with subscriber controlled switched program selection
11/24/1981CA1113158A1 Digital transmission and reception of information
11/17/1981US4301474 Residual clamp error compensation circuit
11/11/1981EP0039565A1 Methods of and apparatuses for processing binary data
11/11/1981EP0039554A1 Improvements in or relating to display units for use in viewdata/teletext system
11/11/1981EP0039385A2 Transmission of video and other signals and also of a return message by a single unshielded two-wire cable
11/10/1981US4300166 System for transmitting signals between a television camera and the associated control unit
11/10/1981US4300162 Field interpolation circuit
11/10/1981US4300161 Time compression multiplexing of video signals
11/10/1981US4300159 Scanner
11/10/1981CA1112380A1 Picture/audio signal transmission system
11/04/1981EP0039150A2 Methods of and apparatuses for processing binary data
11/04/1981EP0039102A1 Bidirectional information transmission via a long distance video interface (LDVI) cable
11/03/1981US4298888 Non-interlaced to interlaced format video converter
11/03/1981CA1111956A1 Switching method for measuring two neighboring flying targets in succession
10/1981
10/28/1981EP0038666A1 Radiographic apparatus and method with automatic exposure control
10/28/1981EP0038665A1 Bias lighting in a radiographic apparatus and method
10/28/1981EP0038664A1 Radiographic apparatus with logarithmic video compression
10/27/1981US4297693 Apparatus for displaying graphics symbols
10/27/1981CA1111546A1 Digital preprogrammed television game system
10/20/1981CA1110982A1 Card retrieval device
10/15/1981WO1981002961A1 Addressable cable television control system with video format data transmission
10/14/1981EP0037722A1 Dynamic image enhancement method and apparatus therefor
10/13/1981US4295223 Digital signal/noise ratio amplifier apparatus for a communication system
10/13/1981US4295155 Gray scale sync video processing system
10/13/1981US4295154 Digital video and audio file system
10/07/1981EP0037077A2 Method of reducing waiting time in information systems
10/06/1981US4293920 Two-dimensional transform processor
10/06/1981US4293876 Television monitoring system
09/1981
09/29/1981US4292672 Inspection system for detecting defects in regular patterns
09/29/1981US4292653 Method and circuit for reading-out data from a television pickup (image sensor)
09/29/1981US4292652 Method of receiving a video signal
09/29/1981US4292651 Expansion and compression of television signals by use of differential coding
09/29/1981US4292650 Stv Subscriber address system
09/15/1981US4290142 Interactive cable television system
09/15/1981US4290062 System for digital transmission and text display
09/09/1981EP0035436A1 Television system using a marking code superimposed on the picture
09/09/1981EP0035227A1 Central receiving station for a cable television network
09/08/1981US4288858 Inverse two-dimensional transform processor
09/08/1981US4288820 Time-axis picture-signal converter for facsimile and the like
09/08/1981US4288819 Multi-field imaging device
09/08/1981US4288809 Television receiver apparatus for selectively displaying a video picture or alphanumeric data information
09/03/1981WO1981002499A1 Method and system for secure transmission and reception of video information particularly for television
09/02/1981EP0034993A1 A video system for assisting automobile traffic
09/01/1981US4287528 Television system
09/01/1981CA1108289A1 Subscription television billing system
08/1981
08/25/1981US4286291 Digital video processor
08/25/1981US4286288 Apparatus and method for tamper resistant channel attenuation in subscription television converter
08/25/1981CA1107857A1 Actuating system for a rental television
08/25/1981CA1107834A1 Defect detecting device
08/25/1981CA1107821A1 Digital frequency-translated, plural-channel vestigial sideband television communication system
08/18/1981CA1107388A1 Circuitry for line recognition of a television signal
08/11/1981US4283787 Cyclic redundancy data check encoding method and apparatus
08/11/1981US4283740 Apparatus for discriminating television signal
08/11/1981US4283736 Video signal reproducing apparatus for converting a video signal from a first format to a second format
08/11/1981US4283137 Image scanning system
08/11/1981CA1106963A1 Slow scan television scan converter
08/11/1981CA1106962A1 Tv monitor
08/11/1981CA1106961A1 System for passing two color tv signals through non- linear path
08/05/1981EP0033306A1 Method and installation for transmitting television signals by means of a digital encoding of these signals
07/1981
07/29/1981EP0032499A1 Optical illumination and distortion compensator.
07/28/1981US4281354 Apparatus for magnetic recording of casual events relating to movable means
07/28/1981US4281348 Television signal receiving apparatus
07/28/1981US4281344 Video interframe transform coding technique
07/28/1981US4281249 Stepped scanner imaging system
07/23/1981WO1981002085A1 System for remote monitoring and data transmission over non-dedicated telephone lines
07/21/1981CA1105609A1 Line sampling circuit for television receiver
07/14/1981US4278996 Technique for encoding pictorial information
07/14/1981US4278992 PCM Detector for video reproducer apparatus
07/14/1981CA1105128A1 Tv monitor
07/08/1981EP0031458A2 Light-wave guide frequency multiplex transmission system
07/08/1981EP0031457A2 Wide-band switching system
07/07/1981US4277804 System for viewing the area rearwardly of a vehicle
07/01/1981EP0031014A1 Telecommunication system
06/1981
06/30/1981US4276570 Method and apparatus for producing an image of a person's face at a different age
06/30/1981US4276565 Method and apparatus for standards conversion of television signals
06/30/1981US4276562 TV Switching system
06/30/1981US4276560 Color signal reproducing system and circuit for the same
06/30/1981US4276544 Code converting circuits
06/24/1981EP0030598A1 Method and apparatus for colourmetric evaluation of photographic film
06/23/1981US4275422 Telecine machines
06/23/1981US4275416 PCM Detector
06/23/1981US4275411 Dither-quantized signalling for color television
06/16/1981CA1103355A1 Method for digital ru-length coding with redundance reduction for transmission of binarily coded picture informations
06/09/1981US4272820 Method of and device for reducing artefacts in computed tomography images
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