| Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445) |
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| 11/15/2000 | CN1273489A Data processing method/equipment and data regenerateion method/equipment and recording medium |
| 11/15/2000 | CN1058597C Multi-video/audio system and method of driving the same |
| 11/14/2000 | US6148142 Multi-user, on-demand video server system including independent, concurrently operating remote data retrieval controllers |
| 11/14/2000 | US6148135 Video and audio reproducing device and video decoding device |
| 11/14/2000 | US6148082 Scrambling and descrambling control word control in a remultiplexer for video bearing transport streams |
| 11/14/2000 | US6148051 Synchronous data transfer system using time stamp |
| 11/14/2000 | US6148049 Method for synchronization of a clock signal, which can be generated in a data receiving station, with a clock signal which is used in a data transmission station |
| 11/14/2000 | US6148005 Layered video multicast transmission system with retransmission-based error recovery |
| 11/14/2000 | US6147715 Combination of VCR index and EPG |
| 11/14/2000 | US6147700 Noise-having reverse signal isolator and reverse signal combining device in service system using CATV network |
| 11/09/2000 | WO2000067477A1 Watermark system |
| 11/09/2000 | WO2000067392A1 Method and apparatus for quality evaluation of cable circuit |
| 11/09/2000 | WO2000016518A3 Method and apparatus for controlling communication within a computer network |
| 11/09/2000 | WO2000004727A3 Use of a watermark for the purpose of copy protection |
| 11/08/2000 | EP1051038A2 Processing digital video data |
| 11/08/2000 | EP1051035A1 Data processing device and method, and recording device and method |
| 11/08/2000 | EP1051027A1 Methods and apparatus for data processing, methods and apparatus for data reproducing and recording media |
| 11/08/2000 | EP1050186A1 Communication network, method for transmitting a signal, network connecting unit and method for adjusting the bit rate of scaled data flow |
| 11/08/2000 | EP1050165A1 Navigational user interface for interactive television |
| 11/08/2000 | CN1272938A Scalable mixing for speech streaming |
| 11/07/2000 | US6144998 Subscriber system for interactive interfacing with broadcast information |
| 11/07/2000 | US6144413 Synchronization signal detection and phase estimation apparatus and method |
| 11/07/2000 | US6144411 Image processing apparatus with format conversion capabilities |
| 11/07/2000 | US6144402 Internet transaction acceleration |
| 11/07/2000 | US6144401 Television schedule system with access control |
| 11/07/2000 | US6144400 Data delivery system, data receiving apparatus, and storage medium for video programs |
| 11/07/2000 | US6144376 Method and apparatus for merging, displaying and accessing personal computer content listings via a television user interface |
| 11/02/2000 | WO2000065838A2 Conversion of a media file into a scalable format for progressive transmission |
| 11/02/2000 | WO2000065753A2 Hfc return path system using digital conversion and transport |
| 11/02/2000 | WO2000038428A9 A method and apparatus for providing on-demand electronic advertising |
| 11/02/2000 | WO2000027121A9 Consumption distance based rendering of entertainment programming |
| 11/02/2000 | EP1049305A1 Service relay apparatus for providing multimedia content information to a user terminal |
| 11/02/2000 | EP1049284A2 Multiresolution transmission with multicarrier signals |
| 11/02/2000 | EP1049283A2 Multiresolution transmission with multicarrier signals |
| 11/02/2000 | EP1049282A2 Multiresolution modulation with multicarrier signals |
| 11/02/2000 | EP1048172A2 Use of a watermark for the purpose of copy protection |
| 11/02/2000 | EP1048159A1 Emulation of streaming over the internet in a broadcast application |
| 11/02/2000 | EP1048156A2 Method and apparatus for media data transmission |
| 11/02/2000 | EP1048140A2 Cryptographic system with concealed work factor |
| 11/02/2000 | EP1048136A1 Interactive digital radio broadcasting system |
| 11/02/2000 | CA2370855A1 Hfc return path system using digital conversion and transport |
| 11/01/2000 | CN1272282A Information processing device and method, providing medium, and recording medium |
| 10/31/2000 | US6141702 Model and command set for an AV/C-based disc media player recorder |
| 10/31/2000 | US6141691 Apparatus and method for controlling transfer of data between and processing of data by interconnected data processing elements |
| 10/31/2000 | US6141682 Method and apparatus for integrating interactive local internet access and downstream data transfer over a cable TV system with upstream data carried by other media |
| 10/31/2000 | US6141678 Presenting information relating to a program by recognizing text in closed captioning data |
| 10/31/2000 | US6141446 Compression and decompression system with reversible wavelets and lossy reconstruction |
| 10/31/2000 | US6141384 Decoder for trellis encoded interleaved data stream and HDTV receiver including such a decoder |
| 10/31/2000 | US6141380 Frame-level rate control for video compression |
| 10/31/2000 | US6141358 Method and apparatus for aligning sub-stream splice points in an information stream |
| 10/31/2000 | US6141060 Method and apparatus for adding a graphic indication of a first down to a live video of a football game |
| 10/31/2000 | US6141002 System and method for downloading and rendering glyphs in a set top box |
| 10/31/2000 | US6140051 Fluorescent dibenzazole derivatives and methods related thereto |
| 10/31/2000 | US6139197 Method and system automatically forwarding snapshots created from a compressed digital video stream |
| 10/31/2000 | CA2197726C Method for communicating audiovisual programs over a communications network |
| 10/26/2000 | WO2000064177A1 Data broadcast system |
| 10/26/2000 | WO2000064174A1 Network bandwidth optimization by dynamic channel allocation |
| 10/26/2000 | WO2000064172A1 Enabling and/or disabling selected types of broadcast triggers |
| 10/26/2000 | WO2000064170A1 Improved data structure and methods for providing an interactive program guide |
| 10/26/2000 | WO2000064169A1 Data structure and methods for providing an interactive program guide |
| 10/26/2000 | WO2000064166A1 Transmitting viewable data objects |
| 10/26/2000 | WO2000064161A1 Method and device for data transmission |
| 10/26/2000 | WO2000064150A1 Concurrent viewing of video programming and of text communications concerning the video programming |
| 10/26/2000 | WO2000039978A3 Internet group broadcast system and method |
| 10/26/2000 | CA2775625A1 Improved data structure and methods for providing an interactive program guide |
| 10/26/2000 | CA2721609A1 Method and apparatus for compressing video sequences |
| 10/26/2000 | CA2370370A1 Data broadcast system |
| 10/26/2000 | CA2370228A1 Transmitting viewable data objects |
| 10/25/2000 | EP1046301A1 Context life time management of a user interface in a digital tv broadcast |
| 10/25/2000 | EP1046299A1 System for controlling data output rate to a network |
| 10/25/2000 | EP1046285A1 Methods and systems for providing television related services via a networked personal computer |
| 10/25/2000 | EP1046284A1 Graphic layout controller for television environment |
| 10/25/2000 | EP1046279A1 Channel map manager for multiple input devices |
| 10/25/2000 | EP1046264A1 Portable internet-enabled controller and information browser for consumer devices |
| 10/25/2000 | EP1046257A2 A home audio/video network with device control |
| 10/25/2000 | EP1046251A1 A method of maintaining a minimum level of data quality while allowing bandwidth-dependent quality enhancement |
| 10/25/2000 | EP1046169A1 System and method for copy protection for digital signals |
| 10/25/2000 | EP1046164A1 Embedding supplemental data in an information signal |
| 10/25/2000 | EP0920739A4 Method and apparatus for providing control channel communications for an information distribution system |
| 10/24/2000 | US6138196 Communication system for providing digital data transfer, electronic equipment for transferring data using the communication system, and an interface control device |
| 10/24/2000 | US6138163 Mediate server and real time delivery method between different networks |
| 10/24/2000 | US6138147 Method and apparatus for implementing seamless playback of continuous media feeds |
| 10/24/2000 | US6138119 Techniques for defining, using and manipulating rights management data structures |
| 10/24/2000 | US6137834 Method and apparatus for splicing compressed information streams |
| 10/24/2000 | US6137549 Program guide data distribution system with configurable queues |
| 10/24/2000 | US6137539 Digital television status display |
| 10/24/2000 | US6137486 Image display control device for restricting display of video data viewed on a television in accordance with a restrict level of the video data |
| 10/24/2000 | US6137469 Computer-TV video converting apparatus |
| 10/24/2000 | CA2155353C Digital media data stream network management system |
| 10/19/2000 | WO2000062533A1 Television viewer interface system |
| 10/19/2000 | WO2000062476A1 Data transmission system |
| 10/19/2000 | WO2000062299A1 Multimedia visual progress indication system |
| 10/19/2000 | WO2000062228A2 Electronic book alternative delivery systems |
| 10/19/2000 | WO2000062163A1 Consumer electronics devices with adaptable upgrade capability |
| 10/18/2000 | EP1045541A2 Multiresolution transmission and error correction coding with multicarrier signals |
| 10/18/2000 | EP1044564A1 System for dual-display interaction with integrated television and internet content |
| 10/18/2000 | EP1044563A2 Method and apparatus for video-on-demand with fast play capability |
| 10/18/2000 | EP1044422A1 Customized upgrading of internet-enabled devices based on user-profile |
| 10/18/2000 | CN1270737A System and method for recording pay TV programs |
| 10/17/2000 | US6134695 Code image data output apparatus and method |