| Patents for H04N 7 - Television systems (274,023) |
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| 09/25/1991 | EP0448534A2 Method and apparatus for encryption/decryption of digital multisound in television |
| 09/25/1991 | EP0448493A1 Flexible broadcasting method of image sequences towards mobile stations and receiver therefor |
| 09/25/1991 | EP0448491A1 Method of coding and transmitting digital images of an image sequence with at least two quality levels and corresponding devices |
| 09/25/1991 | EP0448468A1 Method and installation for broadcasting high definition television programmes on a narrow band channel |
| 09/25/1991 | EP0448450A1 Method and apparatus for coding and decoding a digital wide-band high-definition television signal |
| 09/25/1991 | EP0448449A1 Method and device for movement estimation of digital high definition television pictures |
| 09/25/1991 | EP0448388A2 Image filtering system |
| 09/25/1991 | EP0448311A2 Image encoding and recording apparatus |
| 09/25/1991 | EP0448164A2 Method and apparatus for processing a signal |
| 09/25/1991 | EP0448060A2 Automatic travelling apparatus |
| 09/25/1991 | EP0448059A2 Automatic travelling apparatus |
| 09/25/1991 | EP0447968A2 Apparatus for providing TV program information |
| 09/25/1991 | EP0447473A1 Colour television transmission system |
| 09/25/1991 | EP0365538B1 Method for reading out an image signal stored in a transparent photostimulable phosphor |
| 09/25/1991 | EP0267280A4 Interactive television and data transmission system |
| 09/25/1991 | CN1054873A Simulative interference video signals generator |
| 09/25/1991 | CN1014106B Frequency generation for extended bandwidth mac color television encoding and decoding |
| 09/24/1991 | US5052047 Modulator-remodulator with common local oscilator |
| 09/24/1991 | US5052037 Video telephone employing pulse width modulation for data transmission |
| 09/24/1991 | US5051840 Device for coding a picture signal by compression |
| 09/24/1991 | US5051837 Home entertainment equipment control apparatus |
| 09/24/1991 | US5051829 Method for automatically controlling optimal tuning point for receiving teletext |
| 09/24/1991 | US5051827 Television signal encoder/decoder configuration control |
| 09/24/1991 | US5051826 Vertical edge detection circuit for a television image motion adaptive progressive scanning conversion circuit |
| 09/24/1991 | US5051825 Dual image video inspection apparatus |
| 09/24/1991 | US5051822 Telephone access video game distribution center |
| 09/24/1991 | US5051616 Zero crossing detector arrangements |
| 09/24/1991 | US5051450 Diiodomethylsulfone insecticides |
| 09/24/1991 | CA2038916A1 Method and apparatus for encryption/decryption of digital multisound in television |
| 09/24/1991 | CA1289658C Compatibility of widescreen and non-widescreen television transmission |
| 09/24/1991 | CA1289657C Motion detection circuit |
| 09/24/1991 | CA1289656C Interframe adaptive vector quantization encoding apparatus |
| 09/24/1991 | CA1289654C 4.5 mhz (intercarrier) fm modulator |
| 09/24/1991 | CA1289653C Apparatus for compressing and/or expanding time base |
| 09/21/1991 | WO1991015064A1 Cable television radio frequency return method |
| 09/21/1991 | WO1991015063A1 Cable television radio frequency subscriber data transmission apparatus and calibration method |
| 09/21/1991 | WO1991015062A1 Cable television radio frequency data processor |
| 09/21/1991 | CA2078562A1 Cable television radio frequency data processor |
| 09/21/1991 | CA2078561A1 Cable television radio frequency return method |
| 09/21/1991 | CA2078548A1 Cable television radio frequency subscriber data transmission apparatus and calibration method |
| 09/20/1991 | CA2037757A1 Pam signal modulation with mappings to improve utilization of available transmission capacity |
| 09/20/1991 | CA2037756A1 High definition television arrangement with signal selections adapted to the available transmission capacity |
| 09/19/1991 | WO1991014346A1 Television broadcasting system |
| 09/19/1991 | WO1991014343A1 Interactive telebroadcasting network with tree architecture |
| 09/19/1991 | WO1991014340A1 Digital image processing including block edges filtering |
| 09/19/1991 | WO1991014339A1 Digital image coding with quantization level computation |
| 09/19/1991 | WO1991014334A1 Electronic still camera providing multi-format storage of full and reduced resolution images |
| 09/19/1991 | WO1991014295A1 Digital image coding using a random scanning of image frames |
| 09/18/1991 | EP0447328A2 Scalar data processing method and apparatus |
| 09/18/1991 | EP0447269A2 An image data processing system |
| 09/18/1991 | EP0447247A2 Image encoding method and apparatus |
| 09/18/1991 | EP0447234A2 Data compression and decompression system and method |
| 09/18/1991 | EP0447214A2 Compatible television system with companded auxiliary signal |
| 09/18/1991 | EP0447213A1 Multiplex transmitter and multiplex receiver for an additional signal |
| 09/18/1991 | EP0447212A1 Voice and video communication apparatus |
| 09/18/1991 | EP0447203A2 Data compression and decompression system and method |
| 09/18/1991 | EP0447068A2 Motion image data compression system |
| 09/18/1991 | EP0447050A2 Including break slots in broadcast video signals |
| 09/18/1991 | EP0446968A2 Vector quantizer |
| 09/18/1991 | EP0446956A2 An ATM transmission system with a variable transmission rate |
| 09/18/1991 | EP0446903A2 Automatic travelling apparatus |
| 09/18/1991 | EP0446902A2 Automatic travelling apparatus |
| 09/18/1991 | EP0446894A2 Television signal scanning line converting apparatus |
| 09/18/1991 | EP0446613A2 Method of processing several television signals for transmission and device |
| 09/18/1991 | EP0446612A2 Method for the preparation of several television signals for transmission purposes and applications |
| 09/18/1991 | EP0446334A1 Device for programmed recording by recognition of reference signals. |
| 09/18/1991 | EP0446280A1 Off-premises cable television channel interdiction method and apparatus. |
| 09/18/1991 | EP0446209A1 Adaptive transform coding system. |
| 09/18/1991 | EP0379486B1 Detection system for a radiation profile line |
| 09/18/1991 | CN1054696A 电视传输系统 Television transmission system |
| 09/18/1991 | CN1054693A Continous cipher synchronization for cellular communication system |
| 09/17/1991 | US5050230 Hybrid residual-based hierarchical storage and display method for high resolution digital images in a multiuse environment |
| 09/17/1991 | US5050198 Method and system for processing X-ray image in X-ray equipment |
| 09/17/1991 | US5050188 Method and apparatus for transmitting coded information |
| 09/17/1991 | US5049994 System for converting interlaced video signals to sequential video signals |
| 09/17/1991 | US5049993 Format conversion preprocessing method and circuit |
| 09/17/1991 | US5049992 HDTV system with receivers operable at different levels of resolution |
| 09/17/1991 | US5049991 Movement compensation predictive coding/decoding method |
| 09/17/1991 | US5049990 Highly efficient coding apparatus |
| 09/17/1991 | US5049028 Control system of multi-joint arm robot apparatus |
| 09/17/1991 | US5048534 Method of and device for determining quantities characterizing the flow of a liquid in a vascular system |
| 09/17/1991 | CA2038478A1 Image data processing system |
| 09/15/1991 | CA2038163A1 System for compression and decompression of video data using discrete cosine transform and coding techniques |
| 09/15/1991 | CA2038131A1 System for compression and decompression of video data using discrete cosine transform and coding techniques |
| 09/12/1991 | DE4007133A1 TV receiver with teletext display |
| 09/12/1991 | DE4007092A1 TV video signal transmission system of letter-box type - modulates chrominance carrier by extra information signals using filters |
| 09/12/1991 | DE4006933A1 Universal decoder for program-accompanying data - is of modular type usable in VHF and TV receivers for wide range evaluation |
| 09/12/1991 | DE4006930A1 Communication signal reception system - has VHF or TV receiver including audio cassette part with incorporated or added decoder |
| 09/12/1991 | DE4004857A1 Bandwidth reduction video signal coding systems - uses low and high pass filtering to divide signal into partial bands for different data reduction |
| 09/11/1991 | EP0446194A1 Continous cipher synchronization for cellular communication system |
| 09/11/1991 | EP0446029A1 Image compression |
| 09/11/1991 | EP0446018A2 Image processing apparatus |
| 09/11/1991 | EP0446001A2 Motion vector detection circuit used in hierarchical processing of moving picture signal |
| 09/11/1991 | EP0445886A1 Television receiver with reduced threshold level frequency demodulator |
| 09/11/1991 | EP0445727A2 Variable length coding method |
| 09/11/1991 | EP0445715A2 Television receiver with cyclical teletext reproduction |
| 09/11/1991 | EP0445532A1 ISDN multimedia communications system |
| 09/11/1991 | EP0445459A1 Technique for monitoring magazine readers |
| 09/11/1991 | EP0445177A1 Compatible television transmission method. |
| 09/11/1991 | CN1054516A Improved interference filter for tvro reveiver systems and like |