| Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445) |
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| 11/30/1999 | US5995667 Image information encoding/decoding system |
| 11/30/1999 | US5995518 System and method for communication of information using channels of different latency |
| 11/30/1999 | US5995516 Data transmitting system |
| 11/30/1999 | US5995491 Method and apparatus for multiple media digital communication system |
| 11/30/1999 | US5995159 Closed-caption scrolling method and apparatus suitable for syllable characters |
| 11/30/1999 | US5995155 Database navigation system for a home entertainment system |
| 11/30/1999 | US5995153 Video processing system with real time program duration compression and expansion |
| 11/30/1999 | US5995150 Dual compressed video bitstream camera for universal serial bus connection |
| 11/30/1999 | US5995146 Multiple video screen display system |
| 11/30/1999 | US5995133 Method for changing a rating code with a macro function key and receiving apparatus having a function for blocking out a program |
| 11/30/1999 | US5995106 Graphical user interface for displaying and navigating in a directed graph structure |
| 11/30/1999 | US5995091 System and method for streaming multimedia data |
| 11/30/1999 | CA2179215C Video messaging arrangement |
| 11/25/1999 | WO1999060815A2 Scalable mixing for speech streaming |
| 11/25/1999 | WO1999060789A1 Interactive television program guide system for determining user values for demographic categories |
| 11/25/1999 | WO1999060785A1 Information processing device and method, providing medium, and recording medium |
| 11/25/1999 | WO1999060784A1 Program guide system with video window browsing |
| 11/25/1999 | WO1999060783A1 Systems and methods for advertising television networks, channels, and programs |
| 11/25/1999 | WO1999060782A1 Epg and advertisement on a remote control display |
| 11/25/1999 | WO1999060748A1 Data disc modulation for minimizing pirating |
| 11/25/1999 | WO1999060741A1 Method for minimizing pirating or unauthorized copying of data |
| 11/25/1999 | WO1999060568A1 Copy protection method using broken modulation rules |
| 11/25/1999 | WO1999060493A1 Personalized time-shifted programming |
| 11/25/1999 | WO1999050988A3 A method of relaying digital video and audio data via a communication media |
| 11/25/1999 | CA2797662A1 Program guide system with video-on-demand browsing |
| 11/25/1999 | CA2775730A1 Interactive television program guide system for determining user values for demographic categories |
| 11/25/1999 | CA2715681A1 Personalized time-shifted programming |
| 11/25/1999 | CA2295587A1 Information processing device and method, providing medium, and recording medium |
| 11/24/1999 | EP0959629A2 Variable transfer rate information reproducing apparatus |
| 11/24/1999 | EP0958703A2 Method and apparatus for encoding and slicing digital video bit streams |
| 11/24/1999 | CN1236526A Digital camcorder apparatus with MPEG-2 compatible video compression |
| 11/24/1999 | CN1236525A Video transmission apparatus employing intra-frame-only video compression that is MPEG-2 compatible |
| 11/24/1999 | CN1236524A Information system |
| 11/24/1999 | CN1236523A Information transmitting method and television broad cast receiver |
| 11/24/1999 | CN1236522A Editing device, editing method, splicing device splicing method, encoding device and encoding method |
| 11/24/1999 | CN1236266A Decoder device and receiver using the same |
| 11/23/1999 | US5991912 Digital video transport error handling in cell based communications systems |
| 11/23/1999 | US5991842 Communication system for providing digital data transfer, electronic equipment for transferring data using the communication system, and an interface control device |
| 11/23/1999 | US5991811 Information transmission system utilizing both real-time data transmitted in a normal-in-time direction and in a retrospective-in-time direction |
| 11/23/1999 | US5991800 Method and apparatus for providing internet service at a subscriber premise |
| 11/23/1999 | US5990972 System and method for displaying a video menu |
| 11/23/1999 | US5990969 Method and apparatus for refreshing a display screen of a television system with images representing network application data |
| 11/23/1999 | US5990927 Advanced set top terminal for cable television delivery systems |
| 11/23/1999 | US5990890 System for data entry and navigation in a user interface |
| 11/23/1999 | US5990885 Personalized services, including a personal presence, for customers based upon collected personal preferences |
| 11/23/1999 | US5990883 Unified presentation of programming from different physical sources |
| 11/23/1999 | US5990803 Multifunctional remote controller and control method for multiple appliances using the same |
| 11/18/1999 | WO1999059334A1 Personal navigator system |
| 11/18/1999 | WO1999059275A1 Audience measurement system for digital television |
| 11/18/1999 | WO1999059072A2 Media manager for controlling autonomous media devices within a network environment |
| 11/18/1999 | CA2330879A1 Personal navigator system |
| 11/17/1999 | EP0957636A2 On-screen electronic resources guide |
| 11/17/1999 | EP0957602A2 Multiplexer |
| 11/17/1999 | EP0956669A1 Source detection apparatus and method for audience measurement |
| 11/17/1999 | EP0879534A4 Media online services access system and method |
| 11/17/1999 | CN1235473A Digital multimedia recorder with enhanced EPG-related functions |
| 11/16/1999 | US5987621 Hardware and software failover services for a file server |
| 11/16/1999 | US5987518 Method and apparatus for communicating internet protocol data over a broadband MPEG channel |
| 11/16/1999 | US5987501 Multimedia system having server for retrieving media data as indicated in the list provided by a client computer |
| 11/16/1999 | US5987180 Multiple component compression encoder motion search method and apparatus |
| 11/16/1999 | US5987126 Device having a digital interface and a network system using such a device and a copy protection method |
| 11/16/1999 | US5986650 Electronic television program guide schedule system and method with scan feature |
| 11/16/1999 | US5984548 Data entry system |
| 11/11/1999 | WO1999057905A1 System and method for providing a plurality of programming services in a television system |
| 11/11/1999 | WO1999057903A1 Method and apparatus for pay-per-view system |
| 11/11/1999 | WO1999057898A1 Method and apparatus for capacity increase and enhanced communications performance in catv networks |
| 11/11/1999 | WO1999057891A1 Method and apparatus for browsing television channel information by category |
| 11/11/1999 | WO1999057889A1 Communication network |
| 11/11/1999 | WO1999057707A1 Method of delivering information over a communication network |
| 11/11/1999 | WO1999057673A2 Transcoding of a data stream |
| 11/10/1999 | EP0955774A2 Method of creating device page upon connecting device which does not support predetermined protocol to home network |
| 11/10/1999 | EP0955757A1 Packet routing and queuing at headend of shared data channel |
| 11/10/1999 | EP0954927A2 Video buffer for seamless splicing of mpeg streams |
| 11/10/1999 | EP0954829A1 System for providing an interactive presentation |
| 11/10/1999 | CN1234945A Method for converting video-frequency series, and respondent conversion device and decoding system |
| 11/10/1999 | CN1234940A Television schedule system with pop-up action menu and incons |
| 11/10/1999 | CN1234936A Transmission of digital signals by orthogonal frequency division multiplexing |
| 11/10/1999 | CN1234687A System for selecting,switching in and watching information section by television companion apparatus |
| 11/10/1999 | CN1234682A Method and apparatus for receiving digit broadcast |
| 11/10/1999 | CN1234556A Path and queuing of data pack on header of shared data channel |
| 11/09/1999 | US5983069 Point of purchase video distribution system |
| 11/09/1999 | US5983005 Multicasting method and apparatus |
| 11/09/1999 | US5983004 Computer, memory, telephone, communications, and transportation system and methods |
| 11/09/1999 | US5982891 Systems and methods for secure transaction management and electronic rights protection |
| 11/09/1999 | US5982830 Hysteretic synchronization system for MPEG audio frame decoder |
| 11/09/1999 | US5982828 Synchronous data transfer system using time stamp |
| 11/09/1999 | US5982786 Circuits and methods for framing one or more data streams |
| 11/09/1999 | US5982448 Multi-language closed captioning system |
| 11/09/1999 | US5982436 Method for seamless splicing in a video encoder |
| 11/09/1999 | US5982414 Bidirectional signal distributing system for inducing a relaxing feeling |
| 11/09/1999 | US5982413 Mixed analog-digital service distribution system and method |
| 11/09/1999 | US5982360 Adaptive-selection method for memory access priority control in MPEG processor |
| 11/04/1999 | WO1999056473A1 Program guide system with flip and browse advertisements |
| 11/04/1999 | WO1999056471A2 System for editing compressed image sequences |
| 11/04/1999 | WO1999056466A1 Program guide system with advertisements |
| 11/04/1999 | WO1999056438A1 Method and apparatus for providing contents, method and apparatus for reception, and method and system for communication |
| 11/04/1999 | WO1999037056A9 Method and apparatus for media data transmission |
| 11/04/1999 | WO1999031871A3 Method and apparatus for receiving full-motion digital video multi-casts, interactive data and interactive voice via a dsl circuit |
| 11/04/1999 | WO1998059282A3 Browser based command and control home network |
| 11/04/1999 | CA2780339A1 Program guide system with flip and browse advertisements |