| Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445) |
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| 10/29/2009 | US20090271604 Apparatus and method to drive devices |
| 10/29/2009 | US20090269037 Audiovisual (av) device and control method thereof |
| 10/29/2009 | US20090269031 Multimedia stream processing system |
| 10/29/2009 | US20090269024 Multimedia signal processing system |
| 10/28/2009 | EP2112827A1 Method and apparatus for selecting from multiple versions of a television program |
| 10/28/2009 | EP2112585A1 Content display device, television receiver, content display method, content display control program, and recording medium |
| 10/28/2009 | EP2111718A2 Methods and apparatus for supporting content distribution |
| 10/28/2009 | CN101569190A Adaptive time allocation in a TDMA MAC layer |
| 10/28/2009 | CN101567012A Contextual WEB page system and method |
| 10/28/2009 | CN100556127C Receiver and interactive type digital video frequency system |
| 10/28/2009 | CN100556124C Information processing device and information processing method |
| 10/28/2009 | CN100556121C Broad cast TV playing and control method and system |
| 10/28/2009 | CN100556045C Method for tracking the size of a multicast audience |
| 10/27/2009 | US7610629 Access control apparatus, access control method, and access control program |
| 10/27/2009 | US7610605 Method and apparatus for conversion and distribution of data utilizing trick-play requests and meta-data information |
| 10/27/2009 | US7610600 Television reception system, channel selection apparatus and display apparatus |
| 10/27/2009 | US7610427 Functional module card for transferring digital broadcasting signal using a clock generated based on a synchronous signal extracted from a received data signal |
| 10/27/2009 | US7610358 System and method for effectively presenting multimedia information materials |
| 10/27/2009 | US7610301 Program information processing system, program information management server, program information operation terminal, and computer program |
| 10/27/2009 | US7610013 Wireless audio for entertainment systems |
| 10/27/2009 | US7609287 Two-way broadcasting system allowing a viewer to produce and send a program |
| 10/24/2009 | CA2663180A1 Method and recording media for providing a recording service |
| 10/22/2009 | US20090265478 Method and apparatus for data stream analysis and decoding apparatus |
| 10/21/2009 | EP2111045A1 Method and apparatus for data stream analysis and decoding apparatus |
| 10/21/2009 | EP2111041A1 Audio processing device, audio processing method, and program |
| 10/21/2009 | EP2110732A2 Systems and methods for secure transaction management and electronic rights protection |
| 10/21/2009 | EP1374574B1 Method for searching of an electronic program guide |
| 10/21/2009 | CN101563890A Media access control protocol data unit aggregation in a time division multiple access media access control layer |
| 10/21/2009 | CN101562689A Audio processing device, audio processing method, and program |
| 10/21/2009 | CN100553323C Demultiplexer and demultiplexing methods for digital broadcasting receiver |
| 10/21/2009 | CN100553308C Digital motion picture reproduction apparatus |
| 10/20/2009 | US7607160 Open cable set-top box diagnosing system and method thereof |
| 10/20/2009 | US7607159 Open cable set-top box diagnosing system and method thereof |
| 10/20/2009 | US7607156 Bi-directional remote control unit and method of using the same |
| 10/20/2009 | US7607149 System and method for merging interactive television data with closed caption data |
| 10/20/2009 | US7607147 Interactive service device metering systems |
| 10/20/2009 | US7605840 Internet surveillance system and method |
| 10/20/2009 | CA2318524C Interactive digital radio broadcasting system |
| 10/15/2009 | US20090260036 Multiple database, user-choice-compiled program and event guide |
| 10/15/2009 | US20090257735 Coded signal reproduction apparatus |
| 10/15/2009 | US20090256963 Electronic device, communication system, method of communication, and program |
| 10/14/2009 | EP1400927B1 Communication apparatus and method |
| 10/14/2009 | CN101558645A Text-based anti-piracy system and method for digital cinema |
| 10/14/2009 | CN100551054C System for forming and processing an MPEG compatible datastream incorporating internet information |
| 10/14/2009 | CN100551053C Recording/output apparatus and recording/output method |
| 10/14/2009 | CN100551052C Video device having software update function using wireless communication and method for controlling the same |
| 10/14/2009 | CN100551036C System and method for broadcast-synchronized interactive content interrelated to broadcast content |
| 10/14/2009 | CN100551031C Method and apparatus for partitioning a plurality of items into groups of similar items in a recommender of such items |
| 10/14/2009 | CN100551015C Method of managing user key for broadcast encryption |
| 10/14/2009 | CN100550173C Data recording method and apparatus, data recording medium, and data reproducing method and apparatus |
| 10/14/2009 | CN100550172C Data recording method and apparatus, data recording medium, and data reproducing method and apparatus |
| 10/14/2009 | CN100550167C Method and apparatus for controlling copy or reproduction of coding digital data |
| 10/13/2009 | US7603695 Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same |
| 10/13/2009 | US7603692 Open cable set-top box diagnosing system and method thereof |
| 10/13/2009 | US7603691 Open cable set-top box diagnosing system and method thereof |
| 10/13/2009 | US7603690 Interactive television program guide system with pay program package promotion |
| 10/13/2009 | US7603689 Fast start-up for digital video streams |
| 10/13/2009 | US7603683 Method of and client device for interactive television communication |
| 10/13/2009 | US7602813 Decoder device |
| 10/13/2009 | US7602416 Internet surveillance system and method |
| 10/13/2009 | US7602414 Internet surveillance system and method |
| 10/13/2009 | CA2337463C Television system with aided user program searching |
| 10/08/2009 | US20090254950 Home media network |
| 10/08/2009 | US20090254939 Content delivery system, repeater, terminal device, content delivery method, program and recording medium |
| 10/08/2009 | US20090254935 Method and apparatus for collecting and providing viewer feedback to a broadcast |
| 10/08/2009 | US20090252483 Optical disk for high resolution and general video recording, optical disk reproduction apparatus, optical disk recording apparatus, and reproduction control information generation apparatus |
| 10/08/2009 | US20090252478 Method and apparatus for receiving a digital signal and apparatus for recording and reproducing the digital signal |
| 10/07/2009 | EP2107810A2 Receiving apparatus and control method thereof |
| 10/07/2009 | EP2107555A2 Data structure, information processing apparatus, information processing method, transmitting apparatus, transmitting method, multiplexing apparatus, multiplexing method, and program |
| 10/07/2009 | EP2107477A2 Summarizing reproduction device and summarizing reproduction method |
| 10/07/2009 | EP1421785B1 Interactive program guide configuration system |
| 10/07/2009 | CN101552895A Electronic device, communication system, method of communication, and program |
| 10/06/2009 | US7600250 Communicating ancillary information associated with a plurality of audio/video programs |
| 10/06/2009 | US7600242 Program detail information display apparatus and method thereof |
| 10/06/2009 | US7600238 Method for verifying television receiver sets with access control and corresponding receiver set |
| 10/06/2009 | US7600085 Apparatus and method for determining erasability of data |
| 10/06/2009 | US7599605 Data recording method and apparatus, data recording medium, and data reproducing method and apparatus |
| 10/06/2009 | US7599602 Method and apparatus for reproducing data using management data |
| 10/06/2009 | US7598962 Graphics display system with window descriptors |
| 10/06/2009 | CA2401715C Browser based command and control home network |
| 10/06/2009 | CA2350253C Television reception system, channel selection apparatus and display apparatus |
| 10/01/2009 | US20090249390 Methods and Systems for Forced Advertising |
| 10/01/2009 | US20090249176 Delivery of navigation data for playback of audio and video content |
| 10/01/2009 | US20090248182 Audio player using audible prompts for playback selection |
| 10/01/2009 | US20090245389 Object-Based Audio-Visual Terminal And Bitstream Structure |
| 10/01/2009 | US20090245348 Method and apparatus for generating information signal to be recorded |
| 10/01/2009 | US20090244374 Identifying Ancillary Information Associated With An Audio/Video Program |
| 09/30/2009 | EP2105012A1 Systems and methods for creating custom video mosaic pages with local content |
| 09/30/2009 | EP2104938A1 Apparatus for processing audio and/or video data and method to be run on said apparatus |
| 09/30/2009 | EP1300016B1 Systems and methods for characterizing television preferences over a wireless network |
| 09/30/2009 | EP1295472B1 Method for receiving and displaying thematic audio-visual programme sequences, and receiver therefor |
| 09/30/2009 | EP0862835B1 Method for modifying encoded digital video for improved channel utilization by reduction of coded B-frame data |
| 09/30/2009 | EP0856226B1 Security device managed access to information |
| 09/30/2009 | CN101547330A Video signal transmission method and video processing device |
| 09/30/2009 | CN100546369C Method, apparatus for recording and playing back content data |
| 09/30/2009 | CN100546365C Copy protection method, CableCARD module and video system of digital cable broadcasting channel |
| 09/29/2009 | US7596297 Information processing apparatus and method program, and recording medium |
| 09/29/2009 | CA2499802C Multiple user data storage, retrieval and distribution system |
| 09/29/2009 | CA2461105C Advanced set top terminal for cable television delivery systems |
| 09/29/2009 | CA2329183C Method of delivering information over a communication network |