Patents
Sitemap › H04 - Electric communication technique › H04N - Pictorial communication, e.g. television › H04N 7 - Television systems
Patents for H04N 7 - Television systems (274,023)
07/1985
07/24/1985EP0149214A2 Adaptive comb filter
07/23/1985US4531153 Method and apparatus for encoding and decoding a binary digital information signal
07/23/1985US4531151 System for the redundancy-reducing digital transmission of television video signals
07/23/1985US4531024 Multilocation video conference terminal including video switching contention control
07/23/1985US4531020 Multi-layer encryption system for the broadcast of encrypted information
07/23/1985CA1190980A1 Slit radiography
07/18/1985WO1985003184A1 Technique for the transmission of video and audio signals over a digital transmission system
07/17/1985EP0148766A2 Real time single frame memory for converting video interlaced formats
07/17/1985EP0148578A2 Programmable video display generator
07/17/1985EP0148575A2 Horizontal smooth scrolling system and method for a video display generator
07/17/1985EP0148528A2 Method and circuit for increasing the resolution of a digital time-dependent signal
07/17/1985EP0148351A1 Method for programming a receiver, in particular a videorecorder
07/17/1985EP0148235A1 Encrypted broadcast television system.
07/16/1985US4530008 Secured communications system
07/16/1985US4530007 X-ray diagnostic system having an image intensifier television chain
07/16/1985US4529840 Multilocation video conference terminal including controllable conference location reconfiguration
07/16/1985US4529839 Multilocation video conference terminal including an arrangement to reduce disruption in video switching
07/16/1985CA1190675A1 Wide-band communications system
07/10/1985EP0148164A2 Digitizer for an image processing system
07/10/1985EP0148098A2 Circuit for regenerating periodic signals
07/10/1985EP0148063A1 Process for compressing the rate of data which are successively transmitted between a television emitter and a television receiver, and system for realizing the process
07/09/1985US4528695 Distribution system for a local fibre network
07/09/1985US4528663 Peak load access in a two-way CATV contention system
07/09/1985US4528589 Method and system for subscription television billing and access
07/09/1985US4528588 Method and apparatus for marking the information content of an information carrying signal
07/03/1985EP0146713A1 Multiplex subsampling transmission system for a high definition color television picture signal
07/03/1985EP0146601A1 Downsampling and prefilter implementation in television systems.
07/03/1985EP0105902B1 Synchronization apparatus in transmitting information on a simplex bus
07/03/1985EP0032499B1 Optical illumination and distortion compensator
07/02/1985US4527268 Structure of an access point toward a data pack broadcasting network
07/02/1985US4527195 Apparatus for encoding and decoding information
07/02/1985US4527194 Channel assignment for CATV system
07/02/1985US4527187 High sensitivity FM signal demodulation system
07/02/1985CA1219065B Television display system with reduced line-scan artifacts
07/02/1985CA1189962A1 Television display system with reduced line-scan artifacts
07/02/1985CA1189958A1 High sensitivity fm signal demodulation system
07/02/1985CA1189953A1 Interface apparatus and method for asynchronous encoding of digital television
07/01/1985EP0097159A4 Two bit per symbol sec/ded code.
06/1985
06/26/1985EP0145805A1 Correction method for symbol errors in video/teletext signals
06/25/1985CA1189613A1 Simultaneous transmission of two information signals within a band-limited communications channel
06/25/1985CA1189612A1 System for digital transmission and display of texts on a television set screen
06/20/1985WO1985002744A1 Peak load access in a two-way catv contention system
06/20/1985WO1985002743A1 Two-way catv system with aml commands
06/20/1985WO1985002742A1 Upstream data packet time slot synchronization with downstream vbi for two-way catv system
06/19/1985EP0145677A2 Improved teletext receiver
06/19/1985EP0145063A2 Cable television network
06/19/1985EP0144770A2 CATV Signal Transmitting System and Related Receiving System
06/19/1985EP0144457A1 Data slicer circuit for separating and regenerating digital teletext signals
06/18/1985US4524384 Video and audio security system
06/18/1985US4524379 Double-scanning non-interlace television receiver with vertical aperture correction circuit
06/12/1985EP0144085A2 Television and market research data collection system and method
06/12/1985EP0144066A2 Circuit arrangement for the swift detection of the greatest difference among three represented digital values
06/12/1985EP0143896A2 Television receiver with circuit for the descrambling of an analogue scrambled signal
06/11/1985US4523232 Video signal analog-to-digital converter for an image display apparatus
06/11/1985US4523228 Sync suppression scrambling of television signals for subscription TV
06/11/1985US4523220 Compatible high-definition television system utilizing Hadamard basis functions
06/11/1985US4523190 Switching system
06/11/1985US4523158 Clock regenerator using two on-off oscillators
06/06/1985WO1985002511A1 Television receiver
06/05/1985EP0143657A2 Digital radiography apparatus
06/05/1985EP0143527A2 Video game system
06/05/1985EP0143269A2 Process and device for inserting a digial binary narrow-band signal in, or for extracting this narrow-band signal from a time division multiplex signal
06/05/1985EP0143268A2 Process and device for inserting a digital binary narrow-band signal in, or for extracting this norrow-band signal from a time division multiplex signal
06/04/1985US4521809 Method and apparatus for controlling access to selected television programs
06/04/1985US4521806 Recorded program communication system
06/04/1985US4521802 Double-scanning non-interlace color television receiver
05/1985
05/29/1985EP0143010A1 Method and device for detecting moving television picture elements for digital data flow compression television systems with conditional replenishment
05/29/1985EP0142902A1 Colour television transmission or data storage system having time-division multiplex encoding and data generator and receiver suitable therefor
05/29/1985EP0142864A2 X-ray diagnostic apparatus utilizing x-ray shield member
05/29/1985EP0142779A2 Apparatus for automatically variably controlling display parameters
05/28/1985US4520508 Subscriber terminal for monitoring radio-frequency signal ingress into cable television systems
05/28/1985US4520404 System, apparatus and method for recording and editing broadcast transmissions
05/28/1985US4520392 Teletext reception indicator
05/28/1985US4519391 Endoscope with signal transmission system and method of operating same
05/28/1985CA1187978A1 Tv signal median prediction coding system
05/28/1985CA1187977A1 Switching system
05/23/1985WO1985002312A1 Television receiver
05/22/1985EP0142210A1 Video game device with standby mode
05/22/1985EP0141969A1 Method and circuit arrangement for improving picture quality by movement-controlled DPCM coding
05/21/1985US4519085 Differential data coding and decoding process and system restricting propagation of transmission errors
05/21/1985US4518994 Communication system compandor
05/21/1985US4518993 Television signal receiving system
05/21/1985US4518990 Observation system for military vehicles
05/21/1985US4517976 High frequency scalpel and endoscope system and method of operating same
05/15/1985EP0141721A2 Receiving device in a transmission system for asynchronous video information
05/15/1985EP0141460A1 Teletext decoder for use in a television receiver arrangement
05/15/1985EP0141431A2 Digital signal transmitting and/or receiving system
05/15/1985EP0141127A1 Arrangement for bidimensional differential pulse code modulation
05/15/1985EP0140957A1 Audio digital recording and playback system.
05/14/1985US4517604 Method for reducing line width variations in bilevel video images
05/14/1985US4517599 In an imaging system
05/14/1985US4517598 Method and apparatus for electronic publishing
05/14/1985US4517597 Method and apparatus for encoding and decoding video
05/14/1985US4517596 Encoding system
05/14/1985US4517595 Pay television channel selector
05/14/1985US4517593 For scoring an event area
05/14/1985US4517586 Digital television receiver with analog-to-digital converter having time multiplexed gain
05/14/1985CA1187169A1 Video/audio simultaneous transmission system
05/14/1985CA1187165A1 Method of and apparatus for modifying a video signal to inhibit recording thereof
05/09/1985WO1985002082A1 Data retrieval system
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