| Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445) |
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| 08/01/2002 | US20020101442 Audio-video data switching and viewing system |
| 07/31/2002 | EP1227684A2 Encoding of video signals |
| 07/31/2002 | EP1227682A1 Television apparatus for storage broadcasting, information display, distributing device, and information distributing method |
| 07/31/2002 | EP1227676A2 Method of selecting among multiply-categorised items |
| 07/31/2002 | EP1227612A1 Contents recording apparatus, recording medium, contents reproducing apparatus, contents transmission method, transmission medium, and contents reception method |
| 07/31/2002 | EP1226518A2 Timedependent hyperlink system in videocontent |
| 07/31/2002 | EP1053642A4 A host apparatus for simulating two way connectivity for one way data streams |
| 07/31/2002 | EP1033019B1 Protocol for digital data transmission in the form of mpeg-ts elements |
| 07/31/2002 | CN1361990A 电视节目指南 TV Program Guide |
| 07/31/2002 | CN1361980A Program guide processing |
| 07/31/2002 | CN1361975A Programming interface for television settop core system software |
| 07/31/2002 | CN1361952A HFC return path system using digital conversion and transport |
| 07/31/2002 | CN1361633A Image transmitting method, image processing method and image processing apparatus |
| 07/31/2002 | CN1361589A Electrical apparatus of shielding plate and emitting device for filtering electric signal at two two side of shielding plate |
| 07/31/2002 | CN1361530A Content recording device and media, reproducing device, transmitting method and media, and receiving method |
| 07/30/2002 | USRE37810 Digital video signal reproducing apparatus with high-speed play mode |
| 07/30/2002 | US6427238 Module manager for interactive television system |
| 07/30/2002 | US6427237 Network for distributing multimedia signals over a primary signal distribution path |
| 07/30/2002 | US6427194 Electronic system and method for display using a decoder and arbiter to selectively allow access to a shared memory |
| 07/30/2002 | US6427140 Systems and methods for secure transaction management and electronic rights protection |
| 07/30/2002 | US6426820 Remote control incorporating self-test capability |
| 07/30/2002 | US6426779 Method and apparatus for providing favorite station and programming information in a multiple station broadcast system |
| 07/30/2002 | US6426705 Control that enables/disables a user interface |
| 07/30/2002 | CA2333460C Multimedia time warping system |
| 07/25/2002 | WO2002058400A2 Client-assisted motion estimation for client-server video communication system |
| 07/25/2002 | WO2002058391A2 Selectable mode multimedia system |
| 07/25/2002 | WO2002058387A1 Vsb reception system with enhanced signal detection for processing supplemental data |
| 07/25/2002 | WO2002057951A2 Portable high speed internet access device |
| 07/25/2002 | WO2002057934A1 Method of collecting data using an embedded media player page |
| 07/25/2002 | WO2002057877A2 Uncompressed multimedia data transmission and switching |
| 07/25/2002 | WO2002057848A2 A method and system providing a digital cinema distribution network having backchannel feedback |
| 07/25/2002 | WO2002042959A8 Television program recommender with interval-based profiles for determining time-varying conditional probabilities |
| 07/25/2002 | WO2002035847A3 Apparatus and method for improving the quality of video communication over a packet-based network |
| 07/25/2002 | WO2002032121A3 Virtual creature displayed on a television |
| 07/25/2002 | WO2001093580B1 Authentication and authorization epochs |
| 07/25/2002 | WO2001065732A3 Application of digital processing scheme for enhanced cable television network performance |
| 07/25/2002 | US20020100063 Video interaction |
| 07/25/2002 | US20020100062 Content with advertisement information segment |
| 07/25/2002 | US20020100060 External noise intrusion prevention device, signal amplifier, protector and antenna plug |
| 07/25/2002 | US20020100059 Systems and methods for establishing and administering sessions in digital cable systems |
| 07/25/2002 | US20020100056 Distributed broadband cable modem termination system |
| 07/25/2002 | US20020100055 Method for advertisers to sponsor broadcasts without commercials |
| 07/25/2002 | US20020100053 Semiconductor processing video monitoring system |
| 07/25/2002 | US20020100045 System and method for enabling anonymous personalization |
| 07/25/2002 | US20020100043 Content with advertisement information segment |
| 07/25/2002 | US20020100039 Media interactivity method and architecture |
| 07/25/2002 | US20020099968 Method and system for improving clock speed for data and function opcodes between two different clock speeds |
| 07/25/2002 | US20020099955 Method for securing digital content |
| 07/25/2002 | US20020099949 Systems and methods for detecting tampering of a computer system by calculating a boot signature |
| 07/25/2002 | US20020099841 Management of virtual and physical network inventories |
| 07/25/2002 | US20020099839 Method and storage device for expanding and contracting continuous play media seamlessly |
| 07/25/2002 | US20020099811 Time managing apparatus for managing time to synchronize with other apparatuses |
| 07/25/2002 | US20020099709 Method of selecting among multiply-categorized items |
| 07/25/2002 | US20020099632 Method and system of connecting an internet |
| 07/25/2002 | US20020099459 Future capture of block matching clip |
| 07/25/2002 | US20020098852 Methods and apparatus for identifying as set location in communication networks |
| 07/25/2002 | US20020098240 Compositions comprising modafinil compounds |
| 07/25/2002 | US20020097989 Optical disc, a recorder, a player, a recording method, and a reproducing method that are all used for the optical disc |
| 07/25/2002 | US20020097984 Replaying a video segment with changed audio |
| 07/25/2002 | US20020097979 Content with advertisement information segment |
| 07/25/2002 | US20020097879 Broadcasting method and broadcast receiver |
| 07/25/2002 | US20020097872 Method of providing secure content-based user experience enhancement within a content protection architecture |
| 07/25/2002 | US20020097870 Method and system for tracing an analog copy of a digital work to a unique digital copy and a particular digital player |
| 07/25/2002 | US20020097801 Method of switching video sequences and corresponding switching device and decoding system |
| 07/25/2002 | US20020097798 System and method for coding and decoding |
| 07/25/2002 | US20020097678 Method and apparatus for bandwidth management associated with misbehaving sessions |
| 07/25/2002 | US20020097265 User interface for collecting viewer ratings of media content and facilitating adaption of content recommenders |
| 07/25/2002 | US20020097182 Methods and apparatus for identifying asset location in communication networks |
| 07/24/2002 | EP1225767A2 Method and system for delivering digital content |
| 07/24/2002 | EP1225766A2 Viewing history system and apparatus |
| 07/24/2002 | EP1225763A1 Interactive communication techniques |
| 07/24/2002 | EP1225717A2 Method of broadcasting a broadcast programme where the programme is transmitted with a store command and is stored on a storage medium and is reproduced when a play command is being received, and broadcast receiver using the method |
| 07/24/2002 | EP1224803A1 Identifying ancillary information associated with an audio/video program |
| 07/24/2002 | EP1224527A1 Scheduling storage accesses for rate-guaranteed and non-rate-guaranteed requests |
| 07/24/2002 | EP1059001B1 Method for protecting the audio/visual data across the nrss inte rface |
| 07/24/2002 | EP0862842B1 Set-top electronics and network interface unit arrangement |
| 07/24/2002 | EP0756793B1 Complexity determining apparatus for controlling encoding of video signal |
| 07/24/2002 | CN1088301C Trellis coded modulation system for HDTV |
| 07/23/2002 | US6425133 Method for configuring cable television converter terminal using multiple channels and arrangement therefor |
| 07/23/2002 | US6425132 Ingress testing of CATV system utilizing remote selection of CATV node |
| 07/23/2002 | US6425129 Channel preview with rate dependent channel information |
| 07/23/2002 | US6425128 Video system with a control device for displaying a menu listing viewing preferences having a high probability of acceptance by a viewer that include weighted premium content |
| 07/23/2002 | US6425127 Method and system for controlling visual access by a user to broadcast video segments |
| 07/23/2002 | US6425012 System creating chat network based on a time of each chat access request |
| 07/23/2002 | US6424789 System and method for performing fast forward and slow motion speed changes in a video stream based on video content |
| 07/23/2002 | US6424714 Method and apparatus for providing conditional access in connection-oriented interactive networks with a multiplicity of service providers |
| 07/23/2002 | US6424713 Cryptographic system with concealed work factor |
| 07/23/2002 | US6424677 Video/audio processing system providing real time program duration alteration |
| 07/23/2002 | US6424380 Digital broadcast receiving apparatus for displaying still images at high speed |
| 07/23/2002 | US6424185 NCO based frequency synthesizer with jitter modulation |
| 07/23/2002 | CA2124000C Transaction based interactive television system |
| 07/18/2002 | WO2002056595A1 Method and equipment for managing interactions in the mpeg-4 standard |
| 07/18/2002 | WO2002056592A1 Method for storing encrypted data |
| 07/18/2002 | WO2002056591A1 Variable spare circuit group size and quantity having multiple active circuits |
| 07/18/2002 | WO2002056580A1 Contents directory service system |
| 07/18/2002 | WO2002056579A2 Automatic on-screen display of auxiliary information |
| 07/18/2002 | WO2002056578A2 Method of disseminating advertisements using an embedded media player page |
| 07/18/2002 | WO2002056576A2 Methods and apparatus for securely transmitting and processing digital image data |
| 07/18/2002 | WO2002037839A3 Method and apparatus for automatic generation of query search terms for a program recommender |
| 07/18/2002 | WO2002028006A3 Method and apparatus for networked information dissemination through secure transcoding |