| Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445) |
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| 04/13/2005 | CN1606876A Recording/reproducing system |
| 04/13/2005 | CN1606871A Systems and methods for reducing cut-offs in program recording |
| 04/13/2005 | CN1606868A Method and system for displaying time ordered options |
| 04/13/2005 | CN1606857A Method and system for transferring ip packets by aggregating multiple wireless communication channels for high data rate transfers |
| 04/13/2005 | CN1606746A Television program recommender with interval-based profiles for determining time-varying conditional probabilities |
| 04/13/2005 | CN1197386C Bit rate allocation in joint bit rate transcoding |
| 04/13/2005 | CN1197378C Transmitting non-interlaced video sequence suitable to movable image expert group and other data format |
| 04/13/2005 | CN1197376C Wireless communication system with frequency drift correction in subscriber terminals |
| 04/13/2005 | CN1197367C A frame generating method and video data transmitting/receiving device and method |
| 04/13/2005 | CN1197366C Process and apparatus for converting MPEG-2 bitstream into SMPTE-259 compatible bitstream |
| 04/13/2005 | CN1197358C Method and system for limiting repetitive presentations based on content filtering |
| 04/13/2005 | CN1197354C System and method of baseband digital television |
| 04/13/2005 | CN1197347C TV receiving system, channel selecting device and display device |
| 04/13/2005 | CN1197299C Method and apparatus for emitting broadcasting message to hand equipment |
| 04/13/2005 | CN1197074C 数据复制装置 Data replication device |
| 04/13/2005 | CN1197060C Optical disk, method for recording and reading out information on disk and used device |
| 04/12/2005 | US6880171 Browser for use in navigating a body of information, with particular application to browsing information represented by audiovisual data |
| 04/12/2005 | US6880169 Image down-loading apparatus and system, and image down-loading method |
| 04/12/2005 | US6880018 Motion image distributing method and system for the same |
| 04/12/2005 | US6879725 Method, system, and program for decoding a section from compressed data |
| 04/12/2005 | US6879330 Graphics display system with anti-flutter filtering and vertical scaling feature |
| 04/12/2005 | CA2371906C Advertisement subgroups for digital streams |
| 04/12/2005 | CA2352628C Data transmitter |
| 04/12/2005 | CA2302188C A method and apparatus for generating and displaying a broadcast system program guide |
| 04/12/2005 | CA2247627C Method and system for implementing interactive broadcast programs and commercials |
| 04/12/2005 | CA2199526C Conditional access system |
| 04/10/2005 | CA2793116A1 Media stream scheduling for hiccup-free fast-channel-change in the presence of network chokepoints |
| 04/10/2005 | CA2793005A1 Media stream scheduling for hiccup-free fast-channel-change in the presence of network chokepoints |
| 04/07/2005 | WO2005032136A1 Video information providing device, video information reception device, and video information edition device |
| 04/07/2005 | WO2005032019A1 Transport network multiplexer |
| 04/07/2005 | US20050076394 System and method to remotely manage and audit set top box resources |
| 04/07/2005 | US20050076379 Video on demand methods and systems |
| 04/07/2005 | US20050076375 Data transmission apparatus and power supply control method for use in the same |
| 04/07/2005 | US20050076367 System and method for creating user profiles |
| 04/07/2005 | US20050076365 Method and system for recommending content |
| 04/07/2005 | US20050076134 Apparatus and method for multiple rich media formats video broadcasting |
| 04/07/2005 | US20050076077 Data storing method, data storing system, data recording control apparatus, data recording instructing apparatus, data receiving apparatus, and information processing terminal |
| 04/07/2005 | US20050073613 Method and apparatus for selecting among multiple tuners |
| 04/07/2005 | DE10129270B4 Informationsbereitstellungssystem mit automatischer Abrechnung Information providing system with automatic payroll |
| 04/06/2005 | EP1521472A2 URI pointer system and method for the carriage of MPEG-4 data in an MPEG-2 transport stream |
| 04/06/2005 | EP1521471A1 Information access system, information providing device, information access device, information providing method, and information access method |
| 04/06/2005 | EP1521453A1 Image display system, image display method and display unit |
| 04/06/2005 | EP1269751A4 System and method for displaying near video on demand |
| 04/06/2005 | CN1605203A Interactive protocol for remote management of access control to scrambled data |
| 04/06/2005 | CN1605202A System and method for automatic switching to interactive application during television program breaks |
| 04/06/2005 | CN1605199A Internally generated close captioning/tele-texting for set-up menus of network-capable signal-processing apparatus |
| 04/06/2005 | CN1605192A Method and apparatus for providing a reminder message to a television display |
| 04/06/2005 | CN1605090A Activity-based remote control device |
| 04/06/2005 | CN1605057A Rich communication over internet |
| 04/06/2005 | CN1605052A Processing data |
| 04/06/2005 | CN1196339C Method and apparatus for stream transmitting scalable video |
| 04/06/2005 | CN1196335C Client-server based interactive television program guide system |
| 04/06/2005 | CN1196128C Access content method and device |
| 04/05/2005 | US6877038 Data transmission method and apparatus |
| 04/05/2005 | US6877017 Device and method for filtering added information |
| 04/05/2005 | US6877010 System and method for computer-assisted manual and automatic logging of time-based media |
| 04/05/2005 | US6876746 Encryption/decryption engine for multiple isochronous data streams |
| 04/05/2005 | US6876310 Method and apparatus to locate a device in a dwelling or other enclosed space |
| 04/05/2005 | US6875021 Interactive communication system for communicating video game and karaoke software |
| 04/05/2005 | CA2337061C Interactive television program guide with remote access |
| 04/05/2005 | CA2318942C Program signal blocking system |
| 04/05/2005 | CA2257505C A modem with ip support |
| 03/31/2005 | WO2005029853A1 Data conversion system |
| 03/31/2005 | WO2003051040A3 Methods, systems, and apparatus for tuning television components using an internet appliance |
| 03/31/2005 | US20050071889 URI pointer system and method for the carriage of MPEG-4 data in a DVB-HMP MPEG-2 transport stream |
| 03/31/2005 | US20050071878 Cradle, radio frequency receiving system, and radio frequency receiving method |
| 03/31/2005 | US20050071863 System and method for storing and distributing television viewing patterns form a clearinghouse |
| 03/31/2005 | US20050071491 Multimedia streaming service system and method |
| 03/31/2005 | US20050069132 Transport stream encryption device and its editing device and method for use therein |
| 03/30/2005 | EP1519586A2 System and method for data packet substitution |
| 03/30/2005 | EP1519585A2 System and method for demultiplexing video signals |
| 03/30/2005 | EP1519583A1 Multimedia streaming service system and method |
| 03/30/2005 | EP1519579A1 Secure verification of an STB |
| 03/30/2005 | EP1519573A2 Information transmitting method and television broadcasting receiving apparatus |
| 03/30/2005 | EP1519349A2 Bypassing pixel clock generation and CRTC circuits in a graphics controller chip |
| 03/30/2005 | EP1302070B1 Method and system for enabling channel set up in a television signal receiver |
| 03/30/2005 | EP1105810A4 System and method for a master scheduler |
| 03/30/2005 | EP1095504B1 Interactive television program guide system with local advertisements |
| 03/30/2005 | CN1602634A Video capture device and method of sending high quality video over a low data rate link |
| 03/30/2005 | CN1602632A Playback of interactive television applications |
| 03/30/2005 | CN1602626A Script-based method for unattended control and feature extensions of a TV or set top box device |
| 03/30/2005 | CN1602624A Charger system for receiving and transferring data to an electronic device |
| 03/30/2005 | CN1602592A Scene cut detection in a video bitstream |
| 03/30/2005 | CN1602493A Selection of commercials on television |
| 03/30/2005 | CN1602076A Converter and method with hybrid RGB chart and YUV video signal |
| 03/30/2005 | CN1601998A Multimedia streaming service system and method |
| 03/30/2005 | CN1601598A Bypassing pixel clock generation and CRTC circuits in a graphics controller chip |
| 03/30/2005 | CN1601429A Systems and methods for secure transaction management and electronic rights protection |
| 03/30/2005 | CN1195383C Aerial level display equipment and method and receiving device |
| 03/30/2005 | CN1195379C Image content providing method, and system, |
| 03/30/2005 | CN1195371C Internet telephone system and terminal apparatus |
| 03/29/2005 | US6874075 System and method for a communication terminal to manage memory and maintain a current application version for multiple applications |
| 03/29/2005 | US6873853 Method and apparatus for providing commercial broadcasting service in cellular mobile communication network |
| 03/29/2005 | US6873622 Broadband circuit identification method for controlling service access |
| 03/29/2005 | US6873485 Recording medium and apparatus for protecting copyrighted digital data |
| 03/29/2005 | US6872288 Apparatus for controlling flow in an electrodeposition process |
| 03/29/2005 | CA2379992C A scaling independent technique for watermarking images |
| 03/29/2005 | CA2265954C Method and apparatus for providing control channel communications for an information distribution system |
| 03/24/2005 | US20050066360 Program detail information display apparatus and method thereof |
| 03/24/2005 | US20050066359 EPG-conditioned letterbox-to-anamorphic conversion |