| Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445) |
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| 06/22/1999 | US5914712 Interactive video system |
| 06/22/1999 | US5914707 Compact portable audio/display electronic apparatus with interactive inquirable and inquisitorial interfacing |
| 06/22/1999 | US5914706 Compact portable audio-display electronic apparatus with interactive inquirable and inquisitorial interfacing |
| 06/17/1999 | WO1999030504A1 Encoder and encoding method |
| 06/17/1999 | WO1999030503A2 Method and apparatus for encoding and slicing digital video bit streams |
| 06/17/1999 | WO1999030501A1 Virtual lan printing over interactive cable television system |
| 06/17/1999 | WO1999030500A1 Interactive cable television system with frame server |
| 06/17/1999 | WO1999030499A1 Method for protecting the audio/visual data across the nrss inte rface |
| 06/17/1999 | WO1999030496A1 Distributed scrambling method and system |
| 06/17/1999 | WO1999030493A1 System and method for inserting individualized data content in television broadcast signals |
| 06/17/1999 | WO1999030491A1 Program guide system with browsing display |
| 06/17/1999 | WO1999030468A2 System for monitoring and reporting viewing of television programming |
| 06/17/1999 | WO1999030452A1 A method of maintaining a minimum level of data quality while allowing bandwidth-dependent quality enhancement |
| 06/17/1999 | WO1999030324A1 Integrated circuit with flag register for block selection of nonvolatile cells for bulk operations |
| 06/17/1999 | CA2313133A1 Virtual lan printing over interactive cable television system |
| 06/17/1999 | CA2294797A1 Integrated circuit with flag register for block selection of nonvolatile cells for bulk operations |
| 06/16/1999 | EP0923243A1 Editing device, editing method, splicing device, splicing method, encoding device, and encoding method |
| 06/16/1999 | EP0922360A2 System and method for interfacing mpeg-coded audiovisual objects permitting adaptive control |
| 06/16/1999 | EP0922248A1 Systems and methods for secure transaction management and electronic rights protection |
| 06/16/1999 | EP0906691A4 Ir transmitter with magnetic stripe card reader |
| 06/16/1999 | EP0900499A4 Television schedule system with access control |
| 06/16/1999 | EP0613600A4 Transaction based interactive television system. |
| 06/16/1999 | CN1220065A System and method for creating trick play video streams from compressed normal play video bitstream |
| 06/15/1999 | US5913038 Computer-implemented method for rendering a data stream of a source |
| 06/15/1999 | US5913031 Encoder system level buffer management |
| 06/15/1999 | US5913026 Method of allocating multiple users to a multiple user data distribution system |
| 06/15/1999 | US5912972 Method and apparatus for embedding authentication information within digital data |
| 06/15/1999 | US5912969 Information receiving and recording/reproducing apparatus/method having function for limiting/delimiting for protecting copyright of recording information |
| 06/15/1999 | US5912866 Method of reproducing multimedia data and multimedia data server system |
| 06/15/1999 | US5912709 Method and apparatus for editing or mixing compressed pictures |
| 06/15/1999 | US5912697 Video mail system capable of transferring large quantities of data without hampering other data transmissions |
| 06/15/1999 | US5912696 Multidimensional rating system for media content |
| 06/10/1999 | WO1999029109A1 Electronic program guide system with advertising messages in pop-ups |
| 06/10/1999 | WO1999029107A2 Method and apparatus for video-on-demand with fast play capability |
| 06/10/1999 | WO1999017228A9 Hierarchical method and system for object-based audiovisual descriptive tagging of images for information retrieval, editing, and manipulation |
| 06/10/1999 | CA2312326A1 Electronic program guide system with advertising messages in pop-ups |
| 06/09/1999 | EP0921689A2 Method and apparatus for preparing and transmitting electronic program information and apparatus for producing electronic program guide from the electronic program information |
| 06/09/1999 | EP0920739A1 Method and apparatus for providing control channel communications for an information distribution system |
| 06/09/1999 | EP0756789A4 Complexity determining apparatus |
| 06/09/1999 | CN1219265A Recording of a digital information signal on a record carrier |
| 06/09/1999 | CN1219075A Inforamtion processing apparatus, information processing method and trasmitting media |
| 06/09/1999 | CN1219053A Dynamic network device for one-way adapter |
| 06/09/1999 | CN1219033A Clock forming device |
| 06/08/1999 | US5911046 Audio-video data transmission apparatus, audio-video data transmission system and audio-video data server |
| 06/08/1999 | US5910987 Systems and methods for secure transaction management and electronic rights protection |
| 06/03/1999 | WO1999027713A2 Video buffer for seamless splicing of mpeg streams |
| 06/03/1999 | WO1999027692A1 Protocol for digital data transmission in the form of mpeg-ts elements |
| 06/03/1999 | WO1999027471A1 Method and apparatus for analyzing media-related data |
| 06/03/1999 | WO1999020010A8 Variable bandwidth communication systems and methods |
| 06/03/1999 | WO1999004567A3 System and method for automated audio/video archive and distribution |
| 06/02/1999 | EP0920208A1 Method and apparatus for gathering program watched data |
| 06/02/1999 | EP0920207A1 Interactive terminal for television delivery system |
| 06/02/1999 | EP0920206A1 Advanced set top terminal with electronic mailbox for cable television delivery systems |
| 06/02/1999 | EP0919098A2 Transmission of digital signals by orthogonal frequency division multiplexing |
| 06/02/1999 | EP0919034A1 Cyclic transmission of a plurality of mutually related objects |
| 06/02/1999 | CN1218600A Interactive satellite broadcast system |
| 06/02/1999 | CN1218598A Method and apparatus for displaying television programs and related text |
| 06/02/1999 | CN1218597A Combination of VCR index and EPG |
| 06/02/1999 | CN1218241A Apparatus for and method of transmitting and receiving data streams representing 3-dimensional virtual space |
| 06/01/1999 | US5909638 High speed video distribution and manufacturing system |
| 06/01/1999 | US5909468 Method and apparatus for encoding PCR data on a frequency reference carrier |
| 06/01/1999 | US5909439 Satellite communications system |
| 06/01/1999 | US5909257 Apparatus and method of receiving broadcasted digital signal |
| 06/01/1999 | US5909238 Image transmission system with billing based on the kind of MPEG frame transmitted |
| 06/01/1999 | US5909224 Apparatus and method for managing a frame buffer for MPEG video decoding in a PC environment |
| 06/01/1999 | US5909218 Transmitter-receiver of three-dimensional skeleton structure motions and method thereof |
| 05/27/1999 | WO1999026409A1 Packet filtering |
| 05/26/1999 | EP0917766A1 Decoder for trellis encoded interleaved data stream and hdtv receiver including said decoder |
| 05/26/1999 | EP0917679A2 Spatial browsing approach to multimedia information retrieval |
| 05/26/1999 | EP0761064B1 Method and apparatus for processing a conditional access program guide for a satellite tv service |
| 05/26/1999 | CA2254463A1 Television advertising automated billing system |
| 05/25/1999 | US5907686 Computer |
| 05/25/1999 | US5907683 System for maintaining a quality of service in a multimedia datastream system by inhibiting blocking of real-time writes to a multimedia file system |
| 05/25/1999 | US5907659 Optical disc for which a sub-picture can be favorably superimposed on a main image, and a disc reproduction apparatus and a disc reproduction method for the disc |
| 05/25/1999 | US5907366 Vertical blanking insertion device |
| 05/25/1999 | US5907351 Method for selecting a transmission signal |
| 05/25/1999 | US5907350 Television signal activated interactive smart card system |
| 05/25/1999 | US5907323 Interactive program summary panel |
| 05/25/1999 | US5907322 Television event marking system |
| 05/25/1999 | US5907321 Method for transmitting and displaying an interchannel interval image in a cable system |
| 05/20/1999 | WO1999025119A1 Interactive electronic television program guide with database configurability |
| 05/20/1999 | WO1999025082A1 Transmitter and transmitting method, information editor and editing method, receiver and receiving method, information storage and storing method, and broadcasting system |
| 05/20/1999 | WO1999016235A3 Computational resource allocation in an information stream decoder |
| 05/20/1999 | WO1999014687A3 Continuous media file server and method for scheduling network resources |
| 05/20/1999 | WO1998058496A3 Transmission of digital signals by orthogonal frequency division multiplexing |
| 05/20/1999 | EP0919098A3 Transmission of digital signals by orthogonal frequency division multiplexing |
| 05/19/1999 | EP0917356A1 Packet filtering |
| 05/19/1999 | EP0916226A1 System and method for digitally encoding and compressing vbi signals |
| 05/19/1999 | EP0916223A1 Return path ingress noise measurement system |
| 05/19/1999 | EP0886963A4 Improved television tuning system |
| 05/18/1999 | US5905882 Electronic-equipment control apparatus, electronic-equipment control method and electronic-equipment control system |
| 05/18/1999 | US5905879 System and method for transferring periodic data streams on a multimedia bus |
| 05/18/1999 | US5905847 Client-server system with parity storage |
| 05/18/1999 | US5905769 System and method for high-speed skew-insensitive multi-channel data transmission |
| 05/18/1999 | US5905732 PCR restamper |
| 05/18/1999 | US5905497 Automatic and seamless cursor and pointer integration |
| 05/14/1999 | WO1999023820A1 Link adapter interface for upgrading existing satellite communication system for enhanced modulation and coding |
| 05/14/1999 | WO1999023813A2 Automatic characterization of a television signal |
| 05/12/1999 | EP0915621A2 Synchronized presentation of television programming and internet content |
| 05/12/1999 | EP0914745A1 Method for seamless splicing in a video encoder |