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