Patents for H04N 7 - Television systems (274,023)
06/1997
06/10/1997US5638127 Adaptive blocking image signal coding system
06/10/1997US5638126 Method and apparatus for deciding quantization parameter
06/10/1997US5638125 Quantization step size control apparatus using neural networks
06/10/1997US5638124 Video signal processing apparatus having an image inserting and extracting circuit for inserting an image into or extracting an image from video signal based on a detected result of a motion detecting circuit
06/10/1997US5638116 Object recognition apparatus and method
06/10/1997US5638114 Multi-location control apparatus, television conference terminal unit, and multi-location television conference system
06/10/1997US5638113 Transaction based interactive television system
06/10/1997US5638069 High throughput variable length decoder and apparatus comprising such decoder
06/10/1997US5638068 Processing images using two-dimensional forward transforms
06/10/1997US5638063 Code modulation method, code demodulation method, and code detection method
06/10/1997US5638035 Coaxial cable distribution network having a reversible directional coupler
06/10/1997CA2092841C Bidirectional video telephony between cable television and switched telephone systems
06/10/1997CA2092839C Video telephony dialing
06/10/1997CA2047320C Television signal transmission processing apparatus and reception processing apparatus
06/05/1997WO1997020433A1 Methods and apparatus for traffic incident detection
06/05/1997WO1997020432A1 Home communications terminal having an applications module
06/05/1997WO1997020431A1 Method and device for loading a user interface
06/05/1997WO1997020430A1 Method and apparatus for multiple access over randomized slots with collision detection in a cable telephony system
06/05/1997WO1997020413A1 Packet switching system using telephonic and satellite transmission
06/05/1997WO1997020407A1 Method and apparatus for assigning communications channels in a cable telephony system
06/05/1997DE19650096A1 Satellite radio receiver tuner
06/05/1997DE19646215A1 Video data playback stop and recording device
06/05/1997DE19645969A1 Wide-screen television receiver with picture tube and deflection unit
06/05/1997DE19544582A1 Transmission of additional information in unused lines of video signal
06/05/1997DE19543755A1 Stepper multiswitch for satellite receiver
06/04/1997EP0777392A2 Information storage control method
06/04/1997EP0777388A2 Video encoder and decoder with noise reduction
06/04/1997EP0777387A2 Method and apparatus for encoding digital video signals
06/04/1997EP0777386A2 Method and apparatus for encoding and decoding an image
06/04/1997EP0777385A2 A method and apparatus for screening audio-visual materials presented to a subscriber
06/04/1997EP0777384A2 Video conferencing
06/04/1997EP0777383A1 Data communication device
06/04/1997EP0777358A2 Method and apparatus for contention resolution in a broadband network
06/04/1997EP0777349A2 Head end station for the reception of digital broadcast signals
06/04/1997EP0777335A2 Satellite broadcast tuner capable of processing both QPSK modulation signal and FM signal
06/04/1997EP0777228A2 Data storage/transfer apparatus and method
06/04/1997EP0776574A1 Method, requiring reduced memory capacity, for decoding compressed video data
06/04/1997EP0776573A1 A video security system
06/04/1997EP0776570A2 Composing an image from sub-images
06/04/1997EP0776559A1 System and method for inverse discrete cosine transform implementation
06/04/1997EP0776499A1 Content-based haptic input device for video
06/04/1997EP0573406B1 Program transmission optimisation
06/04/1997EP0557310B1 Process for adaptive quantisation to reduce data in the transmission of digital images
06/04/1997EP0532504B1 Cable television radio frequency data processor
06/04/1997CN1151233A Conditional access information arrangement
06/04/1997CN1151230A Scalable multimedia network
06/04/1997CN1151081A Real-time image recording/producing method and apparatus and video library system
06/04/1997CN1035094C Video memory system with field memory for motion adaptive compensation
06/04/1997CN1035093C Video-frequency display system for displaying an interlaced scan and noninterlaced video signal
06/03/1997US5636346 Method and system for selectively targeting advertisements and programming
06/03/1997US5636296 Image analysis system
06/03/1997US5636295 Apparatus for reducing quantization noise in image signals
06/03/1997US5636293 Multiple module architecture for implementing full search block matching
06/03/1997US5636292 Steganography methods employing embedded calibration data
06/03/1997US5636279 Scramble apparatus and descramble apparatus
06/03/1997US5636276 Device for the distribution of music information in digital form
06/03/1997US5636252 Automatic gain control of radio receiver for receiving digital high-definition television signals
06/03/1997US5636251 Receiver for a trellis coded digital television signal
06/03/1997US5636250 Automatic VSB/QAM modulation recognition method and apparatus
06/03/1997US5636218 Gateway system that relays data via a PBX to a computer connected to a pots and a computer connected to an extension telephone and a lanand a method for controlling same
06/03/1997US5636209 Modem to support multiple site call conferenced data communications
06/03/1997US5636186 Multiple audio channels recording and reproduction apparatus
06/03/1997US5636141 Method and appartus for accumulating and supplying signals
06/03/1997US5636139 Information service control point which retreives information as blocks of data
06/03/1997US5636039 TV conference system and terminal equipment for use in the same
06/03/1997US5636036 Interactive video system having frame recall dependent upon user input and current displayed image
06/03/1997US5635994 In a video signal representing a video image
06/03/1997US5635989 Method and apparatus for sorting and searching a television program guide
06/03/1997US5635987 Method of an apparatus for displaying teletext information for a wide-screen television receiver
06/03/1997US5635986 Method for encoding a contour of an object in a video signal by using a contour motion estimation technique
06/03/1997US5635985 Low cost joint HD/SD television decoder methods and apparatus
06/03/1997US5635982 System for automatic video segmentation and key frame extraction for video sequences having both sharp and gradual transitions
06/03/1997US5635981 Visitor identification system
06/03/1997US5635980 System and method for customer premises broadband interface with on-hook alerting
06/03/1997US5635979 Dynamically programmable digital entertainment terminal using downloaded software to control broadband data operations
06/03/1997US5635978 Electronic television program guide channel system and method
06/03/1997US5635947 Eye movement tracking display
06/03/1997US5635938 Quantizing and dequantizing circuit with reduced size
06/03/1997US5635929 Low bit rate video encoder and decoder
06/03/1997US5635881 Switched pedestal/aerial port coaxial cable distribution network
06/03/1997US5635864 Comparator circuit
06/03/1997US5634850 Image processing device and method
06/03/1997US5634849 Content-on-demand interactive video method and apparatus
06/03/1997US5634848 Video game system
06/03/1997CA2119778C Audio processing system for teleconferencing system
06/02/1997CA2543179A1 System for identifying a broadcast utilizing a network address
05/1997
05/31/1997CA2308021A1 Spherical viewing/projection apparatus
05/29/1997WO1997019565A2 Set-top electronics and network interface unit
05/29/1997WO1997019562A1 Method and apparatus for increasing channel utilization for digital video transmission
05/29/1997WO1997019561A1 Method and apparatus for multiplexing video programs
05/29/1997WO1997019560A1 Method and apparatus for multiplexing and distributing data with preformatted real-time video
05/29/1997WO1997019559A1 Method and apparatus for modifying encoded digital video for improved channel utilization
05/29/1997WO1997019558A1 Video surveillance apparatus and system
05/29/1997WO1997019557A1 Frequency drift correction in subscriber terminals
05/29/1997WO1997019556A1 Interactive television
05/29/1997WO1997019555A1 Interactive special events video signal navigation system
05/29/1997WO1997019554A1 Method and apparatus for recovering the clock of mpeg signals
05/29/1997WO1997019553A1 Transmission of data items
05/29/1997WO1997019552A2 Method and apparatus for implementing playback features for compressed video data
05/29/1997WO1997019532A1 Method for avoiding interference in a cable telephony system