Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445) |
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08/11/2004 | CN1161929C Communication control method, system and equipment |
08/10/2004 | US6775273 Simplified IP service control |
08/10/2004 | US6774908 System and method for tracking an object in a video and linking information thereto |
08/05/2004 | US20040150652 Graphics display system with window descriptors |
08/05/2004 | CA2457505A1 Internet-based language archiving system and education facility |
08/04/2004 | EP1443709A2 Network control system for home appliances |
08/04/2004 | EP1443708A2 Network control system for home appliance |
08/04/2004 | EP1443465A1 Face information transmission system |
08/04/2004 | EP1443406A1 INFORMATION DELIVERY APPARATUS, INFORMATION PROCESSING TERMINAL, EXTERNAL CONTENT STORAGE METHOD, EXTERNAL CONTENT OUTPUT METHOD, CONTENT DATA, OUTPUT CONTROL PROGRAM, AND INFORMATION DELIVERY SYSTEM |
08/04/2004 | EP1442598A1 Command packets for personal video recorder technical field of the invention |
08/04/2004 | EP1442596A1 Business models, methods and apparatus for unlocking value-added services on the broadcast receivers |
08/04/2004 | EP1442595A2 Video on demand gateway |
08/04/2004 | EP1442592A1 Automatic viewing history based television control system |
08/04/2004 | EP1442566A2 Method and system for transferring ip packets by aggregating multiple wireless communication channels for high data rate transfers |
08/04/2004 | EP1442386A1 Mechanism for implementing network discovery in a cable network |
08/04/2004 | EP1352523B1 Method for storing encrypted data |
08/04/2004 | CN1518832A System and data format for providing seamless stream switching in digital video decoder |
08/04/2004 | CN1518831A Pulling internet content onto interactive television using usage data |
08/04/2004 | CN1518690A Electronic programe guide including virtual channels for interactive TV. |
08/04/2004 | CN1518336A Electronic camera and information equipment and portable information device |
08/03/2004 | US6772434 Device and method for the integrated presentation of a secondary service as a part of a primary service |
08/03/2004 | US6772433 Interactive program guide for designating information on an interactive program guide display |
08/03/2004 | US6772432 Interactive television program guide with selectable non-program options |
08/03/2004 | US6772212 Audio/Visual server |
08/03/2004 | US6771886 Method and apparatus to adaptively program a recording device |
08/03/2004 | US6771885 Methods and apparatus for recording programs prior to or beyond a preset recording time period |
08/03/2004 | US6771724 Method and apparatus for recording time information for digital data streams |
08/03/2004 | CA2226588C Waveform generator for insertion of data into digital television signals |
08/03/2004 | CA2190984C Apparatus and method for generating product coupons in response to televised offers |
07/29/2004 | WO2003032553B1 Method and apparatus for encrypting media programs for later purchase and viewing |
07/29/2004 | US20040148626 Information processing apparatus |
07/29/2004 | US20040148197 Adaptive display system |
07/28/2004 | EP1441525A1 System for receiving broadcast digital data comprising a master digital terminal, and at least one slave digital terminal |
07/28/2004 | EP1441450A1 Process for the relative locating of two electrical appliances |
07/28/2004 | EP1440579A1 Selective decoding of enhance video stream |
07/28/2004 | EP1440577A1 Packetizing devices for secure scalable data streaming |
07/28/2004 | EP1440569A1 Program guide data selection device |
07/28/2004 | EP1440528A2 System and method for displaying group viewing statistics during television viewing |
07/28/2004 | EP0965087A4 Multicasting method and apparatus |
07/28/2004 | CN1516972A Method and apparatus for determining broadcast schedule based on most recent client demand feedback |
07/28/2004 | CN1516971A Method and apparatus for periodically delivering optimal batch broadcast schedule based on distributed client feedback |
07/28/2004 | CN1516969A Information providing system, broadcast reception apparatus, and server apparatus |
07/28/2004 | CN1516967A External memory for PVR |
07/28/2004 | CN1516966A System and method for selecting relevant products to be transparently acquired for consumer |
07/28/2004 | CN1516957A System and method for interactive television |
07/28/2004 | CN1516939A Method and apparatus to send feedback from clients to server in content distribution broadcast system |
07/28/2004 | CN1516474A Data transmission control system and data transmission control method |
07/28/2004 | CN1516470A Digital signature for digital TV |
07/28/2004 | CN1516466A Internet TV programme guide system |
07/28/2004 | CN1516457A Multimedia optical disk, reproducing device and reproducing method |
07/28/2004 | CN1516454A Data signal receiving device |
07/28/2004 | CN1516449A Method for editing programme guide |
07/28/2004 | CN1516443A TV programme making-up system and method |
07/28/2004 | CN1516154A Method, device and system for controlling digital data use copy to medium |
07/28/2004 | CN1516153A Method for controlling using digital data in medium, control device and control system |
07/28/2004 | CN1516152A Method, device and system for controlling copy and reproducing digital data |
07/28/2004 | CN1516151A Method, system and device for controlling copy from coding digital data to recording medium |
07/28/2004 | CN1516150A Method and device for controlling copy from digital data to medium, and recording reproducing device |
07/28/2004 | CN1516022A Technique for defining, using and controlling authority management data structure |
07/28/2004 | CN1159925C 多媒体多路复用方法 Multimedia multiplexing method |
07/27/2004 | US6769133 Termination circuitry for dual forward and reverse test points for amplifiers |
07/27/2004 | US6769132 Signal splitter matrix for a cable modem termination system |
07/27/2004 | US6769127 Method and system for delivering media services and application over networks |
07/27/2004 | US6768863 Recording medium of stream data, and recording method and playback method of the same |
07/27/2004 | US6768809 Digital watermark screening and detection strategies |
07/22/2004 | WO2004062283A1 Digital television transmitter and receiver for transmitting and receiving dual stream using 4 level vestigial side band robust data |
07/22/2004 | WO2003050661A3 Processing data |
07/22/2004 | US20040143622 Information processing apparatus and communication control method for use in the apparatus |
07/22/2004 | US20040141730 Image signal, decoding method, decoding apparatus, data storage medium, and computer program implementing a display cycle identifier |
07/22/2004 | US20040141053 Network camera system |
07/21/2004 | EP1439693A1 Television receiver and method for counting the number of accesses from the receiver |
07/21/2004 | EP1439679A2 Multicarrier transmission with variable guard intervals |
07/21/2004 | EP1439678A2 Multicarrier transmission with variable guard intervals |
07/21/2004 | EP1439666A1 Information processing apparatus and communication control method for use in the apparatus |
07/21/2004 | EP1439664A2 Method and apparatus for controlling devices in a home network |
07/21/2004 | EP1438860A1 Adaptive overlay element placement in video |
07/21/2004 | EP1438859A1 Transmission of video using variable rate modulation |
07/21/2004 | EP1438858A1 Robust method for recovering a program time base in mpeg-2 transport streams and achieving audio/video synchronization |
07/21/2004 | EP1438856A1 Program recommendation method and system utilizing a viewing history of commercials |
07/21/2004 | EP1438855A2 Method for verifying television receiver sets with access control and corresponding receiver set |
07/21/2004 | EP1438854A1 Smartcard uart for minimizing processor demands in a conditional access system |
07/21/2004 | EP1438849A1 Searching for frames to perform a trick mode |
07/21/2004 | EP1438840A1 Method and system for displaying multiple programs in the same time slot |
07/21/2004 | EP1438836A1 Video and digital multimedia acquisition and delivery system and method |
07/21/2004 | EP1438824A2 Digital content catering system |
07/21/2004 | EP1287692B1 Pay by time system for content delivery to media playback systems |
07/21/2004 | EP1272955A4 Integrated system for providing financial services including internet tv capabilities |
07/21/2004 | EP1068727A4 Apparatus and method for web-casting over digital broadcast tv network |
07/21/2004 | EP0882357B1 Copy protect recording and playback system |
07/21/2004 | CN1515114A Method and apparatus for generating list of suggested scheduled television programs |
07/21/2004 | CN1515113A Television program selection apparatus and method |
07/21/2004 | CN1514648A Data receiving-processing apparatus and method, and broad casting method |
07/21/2004 | CN1158872C Receiving apparatus, receiving method, and terminal unit |
07/21/2004 | CN1158871C Conditional visiting information device |
07/21/2004 | CN1158861C Broadcasting signal receiving method and apparatus |
07/21/2004 | CN1158608C Multi media transmitting system using formatted data |
07/20/2004 | US6766527 CATV system, CATV distributor, processing terminal, and receiver |
07/20/2004 | US6766525 Method and apparatus for evaluating television program recommenders |
07/20/2004 | US6766492 Finite state automaton for control of frame error recovery for a universal serial bus video camera |
07/20/2004 | US6766374 System creating chat network based on a time of each chat access request |