| Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445) |
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| 09/25/2002 | EP0968608B1 Receiver/decoder and method of reception |
| 09/25/2002 | CN1371573A Client server based interactive television program guide system with remote server recording |
| 09/25/2002 | CN1371216A Method and system for starting multimedia content timely |
| 09/25/2002 | CN1371190A Historical use viewing system and device about it |
| 09/25/2002 | CN1371081A Data disabling device to disable digital content recorded in record medium |
| 09/24/2002 | US6457178 Pulse width modulator for communication system including fiber optic communications |
| 09/24/2002 | US6456783 Data structure of stream data, and recording and playback method thereof |
| 09/24/2002 | US6456607 Apparatus and method for transmitting an image signal modulated with a spreading code |
| 09/24/2002 | US6456338 Television tuning system |
| 09/24/2002 | US6456334 Method and apparatus for displaying video in a data processing system |
| 09/24/2002 | US6456331 Method and apparatus for displaying textual or graphic data on the screen of television receivers |
| 09/23/2002 | CA2378281A1 System and method for interactively producing a web-based multimedia presentation |
| 09/22/2002 | CA2341813A1 A method of communicating over an interactive medium |
| 09/19/2002 | WO2002073970A1 Method and apparatus for controlling traffic loading on a cable modem termination system |
| 09/19/2002 | WO2002073967A2 Affinity marketing for interactive media systems |
| 09/19/2002 | WO2002073966A2 A system and method for processing conditional access data |
| 09/19/2002 | WO2002073963A1 A low-delay video encoding method for concealing the effects of packet loss in multi-channel packet switched networks |
| 09/19/2002 | WO2002073962A2 Time division multiplexing over broadband modulation method and apparatus |
| 09/19/2002 | WO2002073957A1 A television receiver having a notepad/message recorder functionality |
| 09/19/2002 | WO2002073952A1 Dynamic key frame generation and usage |
| 09/19/2002 | WO2002073873A1 Method and apparatus for controlling traffic loading on links between interntet service providedrs and a cable modem termination system |
| 09/19/2002 | WO2002073851A1 Maintaining a global time reference among a group of networked devices |
| 09/19/2002 | WO2002073393A1 Method and system for managing and updating metadata associated with digital assets |
| 09/19/2002 | WO2002073386A1 Enhanced communication, monitoring and control system |
| 09/19/2002 | WO2002060118A3 Method for tracing traitor receivers in a broadcast encryption system |
| 09/19/2002 | WO2002058391A3 Selectable mode multimedia system |
| 09/19/2002 | WO2002054196A3 System and method for the secure distribution of digital content in a sharing network |
| 09/19/2002 | WO2002039730A3 Method and system for limiting repetitive presentations based on content filtering |
| 09/19/2002 | WO2002035823A3 Interactive video manipulation |
| 09/19/2002 | WO2002025939A3 Television program recommender with automatic identification of changing viewer preferences |
| 09/19/2002 | US20020133829 Dynamic upstream amplifier power management |
| 09/19/2002 | US20020133828 Method, apparatus and system for video delivery using head-end pass through |
| 09/19/2002 | US20020133824 Wireless Entertainment system |
| 09/19/2002 | US20020133823 Broadcasting program displaying system and device |
| 09/19/2002 | US20020133821 Activity schedule controls personalized electronic content guide |
| 09/19/2002 | US20020133820 Method and apparatus for producing program information and receiving apparatus for processing the program information |
| 09/19/2002 | US20020133817 Affinity marketing for interactive media systems |
| 09/19/2002 | US20020133722 Broadband services system and method |
| 09/19/2002 | US20020133701 Method for tracing traitor receivers in a broadcast encryption system |
| 09/19/2002 | US20020133592 Information processing apparatus and method, information processing system and program providing medium |
| 09/19/2002 | US20020133558 Large hotel entertainment and/or information system |
| 09/19/2002 | US20020133546 Method and apparatus for implementing multi-user grouping nodes in a multimedia player |
| 09/19/2002 | US20020133465 Usage rights grammar and digital works having usage rights created with the grammar |
| 09/19/2002 | US20020133393 Viewing information collection system and method using data braodcasting, and broadcast receiver, viewing information server, shop terminal, and advertiser terminal used therein |
| 09/19/2002 | US20020131759 Portable entertainment device |
| 09/19/2002 | US20020131509 Digital Data transmission apparatus and transmission method thereof |
| 09/19/2002 | US20020131508 Digital data transmission apparatus and transmission method thereof |
| 09/19/2002 | US20020131443 Bandwidth optimization of video program bearing transport streams |
| 09/19/2002 | US20020131398 Maintaining a global time reference among a group of networked devices |
| 09/19/2002 | US20020130976 Dynamic key frame generation and usage |
| 09/19/2002 | US20020130972 Television receiver having a notepad/message recorder functionality |
| 09/19/2002 | US20020130901 Enhanced program listing |
| 09/19/2002 | DE10153544A1 Vorrichtung zur Steuerung des Durchflusses in einem Galvanisierungsprozeß Apparatus for controlling the flow in a galvanizing |
| 09/19/2002 | CA2452805A1 Affinity marketing for interactive media systems |
| 09/19/2002 | CA2440401A1 Time division multiplexing over broadband modulation method and apparatus |
| 09/19/2002 | CA2440279A1 Method and system for managing and updating metadata associated with digital assets |
| 09/19/2002 | CA2438569A1 Maintaining a global time reference among a group of networked devices |
| 09/18/2002 | EP1241885A2 Dynamically changing the control channel for broadband communication devices |
| 09/18/2002 | EP1241874A2 Methods and apparatus for constructing a program association table when reducing multiplexed data streams |
| 09/18/2002 | EP1240716A1 Programming a universal remote control device |
| 09/18/2002 | EP1240635A2 Universal remote control method and apparatus |
| 09/18/2002 | EP1166207A4 Secure streaming of digital audio/visual content |
| 09/18/2002 | EP1078525B1 Interactive television program guide system for determining user values for demographic categories |
| 09/18/2002 | EP1078516B1 Systems and methods for advertising television networks, channels, and programs |
| 09/18/2002 | EP0997038B1 Interactive program guide navigator menu system |
| 09/18/2002 | CN1370015A Video decoder for sychronous decoding displaying using image as unit |
| 09/18/2002 | CN1370014A Video decoder for synchronous decoding displaying using image as unit |
| 09/18/2002 | CN1370013A Video decoder for synchronous decoding displaying using image as unit |
| 09/18/2002 | CN1370012A Video decoder for synchronous decoding displaying using image as unit |
| 09/18/2002 | CN1370011A Video decoder for sychronous decoding displaying using image as unit |
| 09/18/2002 | CN1370010A Video Decoder for synchronous decoding displaying using image as unit |
| 09/18/2002 | CN1091336C Caption data processing circuit and method therefor |
| 09/17/2002 | US6453472 Method and apparatus for performing periodic ranging for cable modems |
| 09/17/2002 | US6453471 Electronic programming guide with movie preview |
| 09/17/2002 | US6453355 Method and apparatus for media data transmission |
| 09/17/2002 | US6453304 Digital information recording apparatus for recording digital information |
| 09/17/2002 | US6453116 Recording medium of stream data, and recording method and playback method of the same |
| 09/17/2002 | US6453112 Encoded stream generating apparatus and method, data transmission system and method, and editing system and method |
| 09/17/2002 | US6452935 Stream allocation in home networks |
| 09/17/2002 | US6452923 Cable connected wan interconnectivity services for corporate telecommuters |
| 09/17/2002 | US6452640 Sound bite augmentation |
| 09/17/2002 | US6452638 Decoder device and receiver using the same |
| 09/17/2002 | US6452615 System and apparatus for notetaking with digital video and ink |
| 09/17/2002 | US6452610 Method and apparatus for displaying graphics based on frame selection indicators |
| 09/17/2002 | US6452598 System and method for authoring and testing three-dimensional (3-D) content based on broadcast triggers using a standard VRML authoring tool |
| 09/17/2002 | CA2069164C Satellite receiver retuning system |
| 09/14/2002 | CA2375288A1 Dynamic movement of the control channel for broadband communication devices |
| 09/12/2002 | WO2002071755A1 Apparatus and method for building a playlist |
| 09/12/2002 | WO2002071753A1 Information alert via an interactive video system |
| 09/12/2002 | WO2002071752A1 Content distribution/protecing method and apparatus |
| 09/12/2002 | WO2002071742A1 Method and apparatus for personalized presentation of television/internet contents |
| 09/12/2002 | WO2002071684A1 Secure document access system |
| 09/12/2002 | WO2002071664A1 Wireless music and data transceiver system |
| 09/12/2002 | WO2002071403A1 Enhanced copy protection of proprietary material employing multiple watermarks |
| 09/12/2002 | WO2002071266A1 Activity schedule controls personalized electronic content guide |
| 09/12/2002 | WO2002057877A3 Uncompressed multimedia data transmission and switching |
| 09/12/2002 | WO2002044828A3 System and method for media stream adaptation |
| 09/12/2002 | WO2002037838A3 System and method for receiving digital and analog television signals |
| 09/12/2002 | WO2002023311A3 Method and system for managing rights in digital information over a network |
| 09/12/2002 | WO2002019621A3 Method for controlling remote storage devices |