| Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445) |
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| 04/05/2000 | CN1249621A Prepay broadcast system with enhanced secret measure to prevent illegal watching downloaded program |
| 04/05/2000 | CN1249620A Inverted signal transmission apparatus in service system using cable TV network |
| 04/05/2000 | CN1249593A Communication control method, system and equipment |
| 04/04/2000 | US6047374 Method and apparatus for embedding authentication information within digital data |
| 04/04/2000 | US6047317 System and method for enabling a user to rapidly access images in cyclically transmitted image streams |
| 04/04/2000 | US6047121 Method and apparatus for controlling a display monitor in a PC/TV convergence system |
| 04/04/2000 | US6047086 Image information encoding/decoding system |
| 04/04/2000 | US6046971 Apparatus for insertion of information into existing information record |
| 04/04/2000 | US6046780 Broadcasting facility management system and method |
| 04/04/2000 | US6046778 Apparatus for generating sub-picture units for subtitles and storage medium storing sub-picture unit generation program |
| 04/04/2000 | US6046760 Set top board for video on demand service and a computer system mounting the same |
| 04/04/2000 | CA2196407C Smart-card based access control system with improved security |
| 04/04/2000 | CA2174988C Data transmission protocol method and apparatus |
| 03/30/2000 | WO2000018137A1 Frame-level rate control for video compression |
| 03/30/2000 | WO2000017789A1 Customized upgrading of internet-enabled devices based on user-profile |
| 03/30/2000 | WO2000002380A3 Interactive television program guide system with local advertisements |
| 03/29/2000 | CN1249094A Apparatus for reproduction of encoded signal |
| 03/29/2000 | CN1249041A Techniques for defining, using and manipulating rights management data structures |
| 03/29/2000 | CN1248862A Channel information transmission method and receiving device |
| 03/28/2000 | USRE36633 Synchronous residual time stamp for timing recovery in a broadband network |
| 03/28/2000 | US6044397 System and method for generation and interfacing of bitstreams representing MPEG-coded audiovisual objects |
| 03/28/2000 | US6044396 Method and apparatus for utilizing the available bit rate in a constrained variable bit rate channel |
| 03/28/2000 | US6044175 Image information encoding/decoding system |
| 03/28/2000 | US6044124 Delta sigma PLL with low jitter |
| 03/28/2000 | US6044090 Method and apparatus for channel management in a communication system |
| 03/28/2000 | US6044089 System and method for scaleable audio transmission over a network |
| 03/28/2000 | US6044083 Synchronous code division multiple access communication system |
| 03/28/2000 | US6043814 Method of displaying display mode using OSD |
| 03/28/2000 | CA2168641C Image information encoding/decoding system |
| 03/28/2000 | CA2166387C System for multiplexed transmission of compressed video and auxiliary data |
| 03/23/2000 | WO2000016560A1 Adaptive rate control for insertion of data packets into a bitstream |
| 03/23/2000 | WO2000016555A1 Data transmitting/receiving method and its receiver |
| 03/23/2000 | WO2000016548A1 Electronic program guide with digital storage |
| 03/23/2000 | WO2000016518A2 Method and apparatus for controlling communication within a computer network |
| 03/23/2000 | WO2000016336A1 Method and apparatus for editing a broadcast program |
| 03/23/2000 | WO2000016217A1 Maintaining access to a video stack after an application crash |
| 03/23/2000 | WO2000016204A1 System for capturing and processing data streams upon availability of a process buffer |
| 03/23/2000 | CA2810355A1 Electronic program guide with digital storage |
| 03/23/2000 | CA2344422A1 Method and apparatus for editing a broadcast program |
| 03/23/2000 | CA2344420A1 Maintaining access to a video stack after an application crash |
| 03/23/2000 | CA2339629A1 Electronic program guide with digital storage |
| 03/22/2000 | EP0987904A2 Method and apparatus for adaptive synchronization of digital video and audio playback |
| 03/22/2000 | EP0987854A1 Apparatus for reproduction of encoded signal |
| 03/22/2000 | EP0987847A2 Communication network for the distribution of television broadcast signals in a first frequency range and for the transmission of telephone signals in a second frequency range |
| 03/22/2000 | EP0986915A1 Transmission of mpeg-2 encoded video in atm networks |
| 03/22/2000 | EP0986909A1 System and method for recording pay tv programs |
| 03/22/2000 | EP0986907A1 Method and apparatus for splicing compressed information signals |
| 03/22/2000 | EP0986904A1 System and method for processing audio-only programs in a television receiver |
| 03/22/2000 | EP0986903A1 System and method for sorting program guide information |
| 03/22/2000 | EP0986902A1 System and method for changing program guide format |
| 03/22/2000 | EP0820673A4 Networked video downloading servers with customized services |
| 03/22/2000 | EP0764380B1 A two-way multiple access communication system, and a central station and a user station for use in such a system |
| 03/22/2000 | EP0671102B1 Picture-in-picture tv with insertion of a mean only frame into a full size frame |
| 03/22/2000 | CN1248360A Transmitter and transmitting method, information editor and editing method, receiver and receiving method, information storage and storing method, and broadcasting system |
| 03/21/2000 | US6041162 Method for recording video signals by storing digital video data into DCT blocks for a digital VCR |
| 03/21/2000 | US6041143 Multiresolution compressed image management system and method |
| 03/21/2000 | US6041068 Method and apparatus for multiplexing and transmitting autonomously/intra coded pictures along with the main or I, P, B pictures/video |
| 03/21/2000 | US6041067 Device for synchronizing data processing |
| 03/21/2000 | US6041056 Full service network having distributed architecture |
| 03/21/2000 | US6040874 Peripheral unit connection status display device of composite video apparatus and methods thereof |
| 03/21/2000 | US6040872 Communication control device and method for television receiver |
| 03/21/2000 | US6040851 Small-format subsystem for broadband communication services |
| 03/21/2000 | US6040829 Personal navigator system |
| 03/16/2000 | WO2000014963A1 Method and apparatus for using digital televisions as remote personal computer displays |
| 03/16/2000 | WO2000014953A1 Method and apparatus for processing variable bit rate information in an information distribution system |
| 03/16/2000 | WO2000014658A1 Cloning protection scheme for a digital information playback device |
| 03/15/2000 | EP0986215A1 Digital communication system, transmitter, and data selector |
| 03/15/2000 | EP0985316A2 Automatic installation |
| 03/15/2000 | EP0985287A1 Audience measurement system for digital television |
| 03/15/2000 | EP0850538A4 Telecommunications multimedia conferencing system and method |
| 03/15/2000 | EP0838948B1 Multimedia optical disk, reproducing device, and reproducing method capable of superposing sub-video upon main video in well-balanced state irrespective of position of main video on screen |
| 03/15/2000 | CN1247668A Television appts. for simultaneous decoding of auxiliary data included in multiple television signals |
| 03/14/2000 | US6038614 Active volume control with hot key |
| 03/14/2000 | US6038367 Playing a Video Responsive to a comparison of two sets of Content Preferences |
| 03/14/2000 | US6038256 Statistical multiplexed video encoding using pre-encoding a priori statistics and a priori and a posteriori statistics |
| 03/14/2000 | US6038232 MPEG-2 multiplexer for ATM network adaptation |
| 03/14/2000 | US6038000 Information stream syntax for indicating the presence of a splice point |
| 03/14/2000 | US6037998 Electronic program guide system and electronic program guide displaying method |
| 03/14/2000 | US6037994 Sync signal processing device for combined video appliance |
| 03/14/2000 | US6037981 Method and apparatus for using digital televisions as remote personal computer displays |
| 03/14/2000 | US6037969 Method and apparatus for blocking out improper television programs |
| 03/09/2000 | WO2000013419A2 Dynamic bit allocation for statistical multiplexing of compressed and uncompressed digital video signals |
| 03/09/2000 | CA2843698A1 Television message system |
| 03/09/2000 | CA2341040A1 Dynamic bit allocation for statistical multiplexing of compressed and uncompressed digital video signals |
| 03/08/2000 | EP0984626A2 Method of acquiring program guide information, program guide method appropriate for the same, and program guide apparatus |
| 03/08/2000 | EP0984590A2 Data bus communication |
| 03/08/2000 | EP0983665A2 Method and apparatus for providing remote site administrators with user hits on mirrored web sites |
| 03/08/2000 | EP0787405B1 Method of receiving compressed video signals |
| 03/07/2000 | US6035364 Independent use of bits on an on-chip bus |
| 03/07/2000 | US6035092 Data reproducing device |
| 03/07/2000 | US6034967 Adaptive random access protocol and dynamic search tree expansion resolution for multiple station networks |
| 03/07/2000 | US6034925 Accessing control method for identifying a recording medium in a jukebox |
| 03/07/2000 | US6034746 System and method for inserting data into a digital audio/video data stream |
| 03/07/2000 | US6034738 On-screen display timing |
| 03/07/2000 | US6034732 Digital broadcast receiving terminal apparatus |
| 03/07/2000 | US6034731 MPEG frame processing method and apparatus |
| 03/07/2000 | US6034689 Web browser allowing navigation between hypertext objects using remote control |
| 03/02/2000 | WO2000011871A1 Transaction system for transporting media files from content provider sources to home entertainment devices |
| 03/02/2000 | WO2000011870A1 Secure information distribution system utilizing information segment scrambling |
| 03/02/2000 | WO2000011869A1 Client-server electronic program guide |