Patents for H04N 7 - Television systems (274,023) |
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01/29/1985 | US4496986 Subscription television interface |
01/29/1985 | US4496985 Line-locked digital fluorography system |
01/29/1985 | US4496975 One-way data transmission systems |
01/29/1985 | US4496974 Conversion of the scanning line count of television pictures |
01/29/1985 | US4496972 Method for the representation of video images or scenes, in particular aerial images transmitted at reduced frame rate |
01/29/1985 | CA1181862A1 Gray scale image data compression with code words a function of image history |
01/23/1985 | EP0132151A1 Method of and apparatus for automatically correcting position of TV camera |
01/23/1985 | EP0132007A1 Authorising coded signals |
01/23/1985 | EP0131983A2 Secure television transmission system |
01/23/1985 | EP0131752A2 Audio volume control for CATV and method therefor |
01/23/1985 | EP0131663A1 Apparatus for scrambling a television signal |
01/16/1985 | EP0131454A2 Circuit arrangement and method for moving characters superimposed on an image represented by a video signal |
01/15/1985 | US4494144 Reduced bandwidth video transmission |
01/15/1985 | US4494143 Television descrambler with security plug having folded flexible printed circuit board providing tier tag memory |
01/15/1985 | US4494142 Method of and apparatus for scrambled television program addressable subscription selection and decoding |
01/15/1985 | US4494140 T.V. apparatus for movement control |
01/15/1985 | US4494138 Segmented upstream management for cable television |
01/15/1985 | US4493691 Device for performing plasmapheresis by centrifugation |
01/15/1985 | CA1181163A1 Motion and intrustion detecting system |
01/09/1985 | EP0130778A1 Systems and components for detecting electromagnetic radiation and displaying images produced thereby |
01/09/1985 | EP0130693A2 A technique for the time compression multiplexing of three television signals |
01/09/1985 | EP0130692A2 A technique for the time frequency multiplexing of three television signals |
01/09/1985 | EP0130569A2 Scanning imaging apparatus and method |
01/09/1985 | EP0130535A2 Apparatus and method for testing and verifying the timing logic of a cathode ray tube display |
01/09/1985 | EP0130426A1 Transmission system for a frequency-modulated audio carrier, especially a video recorder |
01/09/1985 | EP0130345A2 Integrated lighting and camera system |
01/08/1985 | US4492978 Transmission system for TV signals |
01/08/1985 | US4492976 Line standard conversion circuit for a television signal |
01/08/1985 | US4492937 Terminated switch |
01/08/1985 | CA1180832A1 Method and apparatus for producing optical displays |
01/02/1985 | EP0129910A1 X-ray diagnostic apparatus for allowing stereoscopic visualization on X-ray images of an object under examination |
01/02/1985 | EP0129563A1 Data transmission system with alarm |
01/01/1985 | US4491983 Information distribution system |
01/01/1985 | US4491953 For use in a digital transmission system |
01/01/1985 | US4491865 For use in the viewing head of an endoscope |
12/27/1984 | EP0129299A2 Secure television transmission system |
12/27/1984 | EP0128921A1 Apparatus for deriving information signals for component television video signal reception. |
12/25/1984 | US4490742 Encoding apparatus for a closed circuit television system |
12/20/1984 | WO1984005001A1 Downsampling and prefilter implementation in television systems |
12/19/1984 | EP0128771A2 Timing generator for sync suppressed television signals |
12/19/1984 | EP0128770A2 Video encryption system |
12/19/1984 | EP0128769A2 Address-programmable CATV converter |
12/19/1984 | EP0128707A2 Signal processing apparatus for a video signal |
12/19/1984 | EP0128604A1 Scrambled television signals |
12/19/1984 | EP0128555A2 Prepaid pay-per-view television method and apparatus |
12/19/1984 | EP0128554A2 Master/slave converter system |
12/19/1984 | EP0128481A2 Television viewer data collection system |
12/18/1984 | US4489347 Sine-wave decoding technique |
12/18/1984 | US4489343 Television image receiver provided with vertical synchronizing circuit count system |
12/18/1984 | CA1179767A2 Television monitoring system |
12/18/1984 | CA1179766A2 Television monitoring system |
12/18/1984 | CA1179765A1 Dynamic video scrambling |
12/18/1984 | CA1179535A1 Apparatus for the point-by-point scanning of an object |
12/12/1984 | EP0128093A1 A general technique to add multilingual speech to videotext systems at a low data rate |
12/11/1984 | US4488179 Television viewing center system |
12/11/1984 | US4488176 Method of and apparatus for modifying a video signal to inhibit recording thereof |
12/11/1984 | US4488175 DPCM Video signal processing technique with spatial subsampling |
12/11/1984 | US4488174 Method for eliminating motion induced flicker in a video image |
12/05/1984 | EP0127525A1 Method and apparatus for coding at a small cost data flow for television systems with conditional replenishment |
12/05/1984 | EP0127383A1 Video signal scrambling and descrambling systems |
12/05/1984 | EP0127382A1 Digital audio scrambling system with error conditioning |
12/05/1984 | EP0127381A1 Key signal encryption and distribution system for controlling scrambling and selective, remote descrambling of television signals |
12/05/1984 | EP0127125A2 Video signal transmission system |
12/05/1984 | EP0127068A2 Apparatus for the acquisition of data concerning viewers' habits of switching-on a television set |
12/05/1984 | EP0126759A1 Apparatus for deriving synchronisation signals for component television video signal reception. |
12/04/1984 | US4486779 Apparatus to display graphic messages transmitted by videotext systems |
12/04/1984 | US4486776 Inspection apparatus |
12/04/1984 | US4486773 CATV Pay system |
12/04/1984 | CA1179032A1 Coaxial cable/fiber optic bus network |
11/28/1984 | EP0126495A1 Descrambler for television pictures scrambled by circular permutation |
11/28/1984 | EP0126434A2 X-ray image pick-up device |
11/28/1984 | EP0126375A1 Method and device for the transmission of digital luminance and chrominance television signals |
11/28/1984 | EP0126295A2 Pulse code modulation transmission system with data reduction, in particular for television signals |
11/27/1984 | US4485401 Television system for high-definition television and a television transmitter and receiver suitable therefore |
11/27/1984 | US4485400 Video telephone |
11/27/1984 | US4485399 Method and apparatus approximately correcting errors in a digital video signal |
11/27/1984 | CA1178709A1 Method and means for merging, transmitting and printing orthographic and imaginal data |
11/27/1984 | CA1178682A1 Bidirectional information transmission via a long distance video interface (ldvi) cable |
11/21/1984 | EP0125878A2 Print apparatus for videotext terminal |
11/21/1984 | EP0125840A1 Digital video tape recorder apparatus |
11/21/1984 | EP0125802A2 Multiplexed digital data transmission |
11/21/1984 | EP0125268A1 Signal encoding-decoding apparatus. |
11/20/1984 | US4484328 Television line multiplexed data communication system |
11/20/1984 | US4484231 Printing apparatus |
11/20/1984 | US4484218 Video distribution control system |
11/20/1984 | US4484217 Method and system for remote reporting, particularly for pay television billing |
11/20/1984 | US4484027 Security system for SSTV encryption |
11/20/1984 | CA1178369A1 High definition television system |
11/14/1984 | EP0125130A1 X-ray image correction apparatus |
11/14/1984 | EP0124980A1 Inverted microscope |
11/14/1984 | EP0124940A1 Phase-locked loop and device for demodulating frequency-modulated signals comprising such a loop |
11/13/1984 | USRE31735 Subscriber-limited reception television broadcast security encoder-decoder system |
11/13/1984 | US4483011 Narrow band television transmission system |
11/13/1984 | US4482920 Protective apparatus for pick-up tube |
11/13/1984 | US4482918 Method and apparatus for X-ray image subtraction |
11/13/1984 | CA1177952A1 Image analysis system |
11/08/1984 | WO1984004438A1 Arrangement for the encryption and decryption of a digital signal |
11/07/1984 | EP0124332A2 A double conversion tuner |
11/07/1984 | EP0124222A2 Monochrome-compatible color slow scan television system |
11/07/1984 | EP0123893A1 Method and circuit for picture error correction |