| Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445) |
|---|
| 10/07/1997 | US5675372 Wireless two-way communication system between center and user stations |
| 10/02/1997 | WO1997036424A1 System and method for applying an image to a television display in response to a user change |
| 10/02/1997 | WO1997036408A2 Transition controlled balanced encoding scheme |
| 10/02/1997 | WO1997036391A1 Computer controlled home entertainment system |
| 10/02/1997 | WO1997022201A3 Method and system for transmitting real-time video |
| 10/02/1997 | CA2250189A1 Computer controlled home entertainment system |
| 10/01/1997 | EP0797891A1 Synchronization method and appartus for playback system |
| 10/01/1997 | EP0682833B1 Flow control by evaluating network load |
| 09/25/1997 | WO1997035437A1 Video decoder with closed caption data on video output |
| 09/25/1997 | WO1997035436A1 Analog video encoder with metered closed caption data on digital video input interface |
| 09/25/1997 | WO1997035432A1 Interactive satellite broadcast system |
| 09/24/1997 | EP0796538A2 System and method for scheduling broadcast of and access to video programs and other data using customer profiles |
| 09/24/1997 | EP0796493A1 Multiplex signal decoding |
| 09/24/1997 | CN1160328A Acquiring and error recovery of audio data carried in packetized data stream |
| 09/23/1997 | US5671377 System for supplying streams of data to multiple users by distributing a data stream to multiple processors and enabling each user to manipulate supplied data stream |
| 09/23/1997 | US5671267 Interactive system for communications between a cordless telephone and a remotely operated device |
| 09/23/1997 | US5671253 Apparatus for demodulating and decoding video signals encoded in different formats |
| 09/18/1997 | WO1997034414A1 Method and apparatus for displaying television programs and related text |
| 09/18/1997 | WO1997034413A1 Combination of vcr index and epg |
| 09/18/1997 | CA2777513A1 Method and apparatus for displaying television programs and an electronic program guide (epg) |
| 09/17/1997 | EP0795253A1 Secure authorization and control method and apparatus for a game delivery service |
| 09/17/1997 | CN1159705A Device and method for recording on record-medium and reproducing video data from it |
| 09/16/1997 | US5668948 Media streamer with control node enabling same isochronous streams to appear simultaneously at output ports or different streams to appear simultaneously at output ports |
| 09/16/1997 | US5668946 System for cable communication wherein interpretively coded data transmitted from headend selectively initiate loop free instruction sets stored in receiver-decoder to affect the behavior thereof |
| 09/16/1997 | US5668918 Method for recording digital data using a series of adjacent heads of alternating azimuths located on a headwheel to record data at a rate that is less than the full recording rate possible using the heads |
| 09/16/1997 | US5668916 Apparatus for reproducing data not successively located on a recording medium |
| 09/16/1997 | US5668915 Method for automatically setting VCR clock based on a broadcast time signal and displaying time |
| 09/16/1997 | US5668831 For the reception of data packets |
| 09/16/1997 | US5668810 Data transmission protocol method and apparatus |
| 09/16/1997 | US5668599 Digital video decoder |
| 09/16/1997 | CA2108872C Audio/video telephone communications |
| 09/10/1997 | CN1159265A Apparatus and method for generating product coupons in response to televised offers |
| 09/09/1997 | US5666487 Network providing signals of different formats to a user by multplexing compressed broadband data with data of a different format into MPEG encoded data stream |
| 09/09/1997 | US5666412 Secure access systems and methods utilizing two access cards |
| 09/09/1997 | US5666170 Apparatus for decoding video signals encoded in different formats |
| 09/09/1997 | US5666161 Method and apparatus for creating less amount of compressd image data from compressed still image data and system for transmitting compressed image data through transmission line |
| 09/09/1997 | US5666151 Multiple audio and video signal providing apparatus |
| 09/09/1997 | US5664948 Delivery of data including preloaded advertising data |
| 09/04/1997 | WO1997032435A1 Method and apparatus for generating television program guides |
| 09/04/1997 | WO1997032434A1 Improved television tuning system |
| 09/04/1997 | CA2247878A1 Improved television tuning system |
| 09/03/1997 | EP0695446B1 Multimedia synchronization system |
| 09/03/1997 | CN1158683A Point-of-purchase video distribution system |
| 09/02/1997 | US5664220 Information transmission/reception system for transmitting information to requesters, where it is recorded, in response to a plurality of requests |
| 09/02/1997 | US5664164 Synchronization of one or more data streams |
| 09/02/1997 | US5664046 Autoconfigurable video system |
| 08/28/1997 | WO1997031476A1 Multimedia computer and television apparatus |
| 08/28/1997 | WO1997019565A3 Set-top electronics and network interface unit |
| 08/27/1997 | CN1158203A System for processing a video signal via series-connected high speed signal processing smart cards |
| 08/27/1997 | CN1158202A Safety improved access control system using intelligence card |
| 08/27/1997 | CN1158201A Transmission of graphic images |
| 08/26/1997 | US5661787 System for on-demand remote access to a self-generating audio recording, storage, indexing and transaction system |
| 08/26/1997 | US5661665 Multi-media synchronization |
| 08/26/1997 | US5661516 System and method for selectively distributing commercial messages over a communications network |
| 08/21/1997 | WO1997030549A1 Multicast downloading of software and data modules and their compatibility requirements |
| 08/21/1997 | WO1997030547A1 Method and apparatus for navigating an on-screen program guide |
| 08/21/1997 | WO1997030546A1 Method and apparatus for sorting and searching a television program guide |
| 08/20/1997 | EP0789970A2 Information handling for interactive apparatus |
| 08/20/1997 | EP0754378A4 High speed bidirectional digital cable transmission system |
| 08/20/1997 | CN1157517A Reformatting of variable rate data for fixed rate communication |
| 08/19/1997 | US5659613 Method and apparatus for copy protection for various recording media using a video finger print |
| 08/19/1997 | US5659539 Method and apparatus for frame accurate access of digital audio-visual information |
| 08/19/1997 | US5659353 Television distribution system and method |
| 08/19/1997 | US5659351 Switch and insertion networks in optical cable TV system |
| 08/14/1997 | WO1997029591A1 Media online services access system and method |
| 08/14/1997 | WO1997029458A1 System for providing an interactive presentation |
| 08/13/1997 | EP0788717A1 Digital data packet multiplexer, in particular for digital television |
| 08/13/1997 | EP0788716A1 Digital data packet multiplexer, in particular for digital television |
| 08/13/1997 | EP0788715A1 Digital data packet multiplexer, particularly for digital television |
| 08/13/1997 | EP0788714A1 Video indexing protocol |
| 08/13/1997 | CN1156942A Apparatus and method for recording and reproducing data |
| 08/12/1997 | US5657454 Data processing system |
| 08/12/1997 | US5657415 Apparatus for reproducing moving pictures from motion parameters and moving picture coding and decoding system |
| 08/12/1997 | US5657414 Auxiliary device control for a subscriber terminal |
| 08/12/1997 | US5657387 Video signal format converting circuit |
| 08/12/1997 | US5657247 Method of playing back a sequence of images, in particular an animated sequence, as received successively in digitized form from a remote source, and corresponding apparatus |
| 08/12/1997 | US5657091 Video display controller, user interface and programming structure for such interface |
| 08/12/1997 | US5657072 Interactive entertainment network system and method for providing program listings during non-peak times |
| 08/07/1997 | WO1997028611A1 Synchronization and downconversion in tdm/tdma systems |
| 08/06/1997 | EP0788279A2 Television receiver and additional information transmitting method |
| 08/06/1997 | EP0787406A2 Method of transmitting and receiving compressed television signals |
| 08/06/1997 | EP0787405A2 Method of receiving compressed video signals |
| 08/06/1997 | EP0787391A1 Conditional access system |
| 08/05/1997 | US5655214 Television broadcast distribution systems comprising base station with a tuner and computer outstations |
| 08/05/1997 | US5655144 Audio synchronization system |
| 08/05/1997 | US5654962 Error detection and correction method for an asynchronous transfer mode (ATM) network device |
| 08/05/1997 | US5654748 Interactive program identification system |
| 08/05/1997 | US5654746 Secure authorization and control method and apparatus for a game delivery service |
| 07/30/1997 | EP0786908A2 MPEG data stream decoder |
| 07/30/1997 | EP0786180A1 Method and apparatus for electronic distribution of digital multi-media information |
| 07/30/1997 | EP0786126A1 System for distributing and selecting audio and video information and method implemented by said system |
| 07/30/1997 | EP0786125A1 Home digital audiovisual information recording and playback apparatus |
| 07/30/1997 | EP0786124A1 Intelligent digital audiovisual playback system |
| 07/30/1997 | EP0786122A1 Intelligent digital audiovisual playback system |
| 07/30/1997 | EP0786121A1 Intelligent digital audiovisual playback system |
| 07/30/1997 | EP0786108A1 Delivery of data including preloaded advertising data |
| 07/30/1997 | CN1155959A Transport processor interface and video recorder/playback apparatus for a digital television system |
| 07/30/1997 | CN1155802A Recorded telephone message/number identifying method and apparatus using television set |
| 07/29/1997 | US5652824 Multilingual recording medium and reproducing apparatus with automatic selection of substitutes and languages based on frequency of selections |
| 07/29/1997 | US5652795 Method and apparatus for an adapter card providing conditional access in a communication system |