| Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445) |
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| 01/03/2002 | US20020002709 Method and system for transmitting multimedia data with downstream data transfer over local TV broadcasting channel and for receiving request with upstream data transfer over another channel |
| 01/03/2002 | US20020002706 Authentication and authorization epochs |
| 01/03/2002 | US20020002542 Information reproducing method and information providing business method |
| 01/03/2002 | US20020001452 Method of and apparatus for merging bit streams for seamless reproduction, and recording medium for recording control information for bit stream merging |
| 01/03/2002 | US20020001309 Multiplexer, multimedia communication apparatus and time stamp generation method |
| 01/03/2002 | US20020001043 Timing recovery apparatus and method for digital TV |
| 01/03/2002 | US20020001042 Control device, control method, electric apparatus, control method of an electric apparatus, electric apparatus system, control method of an electric apparatus system, and transmission medium |
| 01/03/2002 | CA2720407A1 Automatic identification of a set-top box user to a network |
| 01/02/2002 | EP1168845A1 Video server system |
| 01/02/2002 | EP1168738A2 Set-top electronics and network interface unit arrangement |
| 01/02/2002 | EP1168693A1 Method and system for distributing audiovisual information |
| 01/02/2002 | EP1168644A2 Transmission/reception integrated radio-frequency apparatus |
| 01/02/2002 | EP1166563A1 Digital optical transmitter with compression |
| 01/02/2002 | EP1166559A1 System and method for serving local and global media content |
| 01/02/2002 | EP1166558A1 System and method of inserting advertisements into an information retrieval system display |
| 01/02/2002 | EP1166556A1 System and method for the near-real time capture and reporting of large population consumer behaviors concerning television use |
| 01/02/2002 | EP1166554A1 System and method for information filtering |
| 01/02/2002 | EP1166270A1 Multimedia visual progress indication system |
| 01/02/2002 | EP1166207A1 Secure streaming of digital audio/visual content |
| 01/01/2002 | US6336219 Audiovisual reproduction system |
| 01/01/2002 | US6336218 Method of controlling reservation program by using settop box and the settop box |
| 01/01/2002 | US6335768 Method and system for broadcasting digital audio and video to an analog wireless device |
| 01/01/2002 | US6335766 System and method for transmitting advanced television signals |
| 01/01/2002 | US6335763 Television receiver and additional information transmitting method |
| 01/01/2002 | US6335736 Interactive graphical user interface for television set-top box |
| 01/01/2002 | CA2257566C System and method for generation and interfacing of bitstreams representing mpeg-coded audiovisual objects |
| 12/27/2001 | WO2001099411A1 Method and system for delivering media services and applications over networks |
| 12/27/2001 | WO2001098913A1 Display facility supplementing experience of a visitor |
| 12/27/2001 | WO2001067752A3 Method and apparatus for displaying television program recommendations |
| 12/27/2001 | WO2001065855A3 A method and apparatus for streaming scalable video |
| 12/27/2001 | WO2001033418A3 Timedependent hyperlink system in videocontent |
| 12/27/2001 | US20010056578 System for providing video-on-demand services in wireless network environment and method therefor |
| 12/27/2001 | US20010056577 Data structure and methods for providing an interactive program guide |
| 12/27/2001 | US20010056575 Method of relaying digital video & audio data via a communications medium |
| 12/27/2001 | US20010056573 System and method for advertisement sponsored content distribution |
| 12/27/2001 | US20010056474 Multimedia providing system, multimedia conversion server, and multimedia terminal |
| 12/27/2001 | US20010056401 Integrated system for providing financial services including internet TV capabilities |
| 12/27/2001 | US20010055951 Telephone device with enhanced audio-visual features for interacting with nearby displays and display screens |
| 12/27/2001 | US20010055336 Compressed-video reencoder system for modifying the compression ratio of digitally encoded video programs |
| 12/27/2001 | US20010055302 Method and apparatus for processing variable bit rate information in an information distribution system |
| 12/26/2001 | CN1076937C Apparatus for processing code data flow expressed by image |
| 12/26/2001 | CN1076931C Method and apparatus for displaying textual or graphic data on screen of television receiver |
| 12/25/2001 | US6334187 Information embedding method, information extracting method, information embedding apparatus, information extracting apparatus, and recording media |
| 12/25/2001 | US6333950 Encoding apparatus and method and computer readable recording medium in which encoding program has been recorded |
| 12/25/2001 | US6333938 Method and system for extracting control information from packetized data received by a communications interface device |
| 12/20/2001 | WO2001097531A2 Electronic stereoscopic media delivery system |
| 12/20/2001 | WO2001097522A2 System and method for providing internet addresses corresponding to an electronic signal to a user |
| 12/20/2001 | WO2001097521A1 Tv broadcasting system |
| 12/20/2001 | WO2001097513A2 Method and system for enabling channel set up in a television signal receiver |
| 12/20/2001 | WO2001097507A2 System and method for automatically determining service groups in a subscriber network |
| 12/20/2001 | WO2001097495A1 Telephone device with enhanced audio-visual features for interacting with nearby displays and display screens |
| 12/20/2001 | WO2001097420A2 Multiplexing digital communication system |
| 12/20/2001 | WO2001097084A2 Personalized content management |
| 12/20/2001 | WO2001060064A3 Electronic program guide viewing history generator method and system |
| 12/20/2001 | WO2001060063A3 Method and apparatus for evaluating television program recommenders |
| 12/20/2001 | WO2001058151A3 Displaying enhanced content information on a remote control unit |
| 12/20/2001 | WO2001050759A3 Method for flow scheduling |
| 12/20/2001 | US20010054184 Data display control apparatus for controlling the display of data, a data transmission apparatus for transmitting information which is used to control the display of data, and a data display control information editing apparatus for editing information used to control the display of data |
| 12/20/2001 | US20010054183 Program surf grid |
| 12/20/2001 | US20010054181 Methods and systems for forced advertisi |
| 12/20/2001 | US20010053514 Method and apparatus for distributing electrical question and corresponding video materials |
| 12/20/2001 | US20010053224 Information vending apparatus, information vending method, and program storage medium |
| 12/20/2001 | US20010053222 Data processing apparatus and method |
| 12/20/2001 | US20010053009 Multi-channel video optical transmission system, optical transmitter and optical receiver |
| 12/20/2001 | US20010052930 Reduced area imaging device incorporated within wireless endoscopic devices |
| 12/20/2001 | US20010052909 Video supply device and video supply method |
| 12/19/2001 | EP1164797A1 Set top terminal for cable television delivery systems |
| 12/19/2001 | EP1164790A2 Television reception system, channel selection apparatus and display apparatus |
| 12/19/2001 | EP1163799A1 Digital return path for hybrid fiber/coax network |
| 12/19/2001 | EP1163749A2 Method and apparatus for remote update of clients by a server via broadcast satellite |
| 12/19/2001 | EP1163572A2 Locally stored content previews: representative of programming content in an electronic programming guide through a graphic image accessed from the hard drive of a set top box |
| 12/19/2001 | CN1327683A Data transmitter |
| 12/19/2001 | CN1327349A System and method for providing multimedia business by using mobile communication terminal |
| 12/19/2001 | CN1327313A Receive and powre control method |
| 12/19/2001 | CN1076506C Data producing device |
| 12/18/2001 | US6332157 Method of accessing multiple services from multiple service providers |
| 12/18/2001 | US6331979 Method and apparatus for connecting computer to satellite antenna |
| 12/18/2001 | US6331877 Electronic television program guide schedule system and method |
| 12/18/2001 | CA2160300C Method and apparatus for partially recompressing digital signals |
| 12/13/2001 | WO2001095633A2 Video size conversion and transcoding from mpeg-2 to mpeg-4 |
| 12/13/2001 | WO2001095624A1 Method apparatus and system for video fast forward playback functionality in a mobile phone |
| 12/13/2001 | WO2001095623A1 Pay by time system for content delivery to media playback systems |
| 12/13/2001 | WO2001095617A2 Auxiliary information processing system with a bitmapped on-screen display using limited computing resources |
| 12/13/2001 | WO2001095613A1 A system to deliver encrypted access control information |
| 12/13/2001 | WO2001095587A2 System and method for calculating concurrent network connections |
| 12/13/2001 | WO2001095513A1 Streaming panoramic video |
| 12/13/2001 | WO2001095112A1 Receiving/storing device, transmission device, broadcasting system, receiving/storing method, transmission method, broadcasting method, programme and medium |
| 12/13/2001 | WO2001062002A3 Automatic channel selection system |
| 12/13/2001 | WO2000007361A3 Digital tv system with synchronized world wide web content |
| 12/13/2001 | US20010052135 Method and system for implementing interactive broadcast programs and commercials |
| 12/13/2001 | US20010052134 Local upstream hub for one-way cable system data/video/services requests |
| 12/13/2001 | US20010052127 Recording medium menu supporting method |
| 12/13/2001 | US20010052124 Method and apparatus for displaying channel information and selecting channel on digital television |
| 12/13/2001 | US20010052076 Information embedding method, information extracting method, information embedding apparatus, information extracting apparatus, and recording media |
| 12/13/2001 | US20010051900 Interactive display |
| 12/13/2001 | US20010051037 Personal versatile recorder: enhanced features, and methods for its use |
| 12/13/2001 | US20010050979 Two-tiered authorization and authentication for a cable data delivery system |
| 12/13/2001 | CA2412329A1 Pay by time system for content delivery to media playback systems |
| 12/13/2001 | CA2411852A1 Streaming panoramic video |
| 12/12/2001 | EP1162844A2 Dynamic feature extraction from compressed digital video signals for content-based retrieval in a video playback system |