| Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445) |
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| 03/31/1999 | EP0905932A2 Method and apparatus for receiving and processing digital broadcast signals |
| 03/31/1999 | EP0905928A1 Game machine system, broadcasting system, data distribution system and its method, and program executing device and its method |
| 03/31/1999 | EP0905669A2 A method and apparatus for enabling a user to access data network applications from a television system |
| 03/31/1999 | EP0904585A2 Recording of a digital information signal on a record carrier |
| 03/31/1999 | EP0870235A4 Apparatus and method for preprocessing computer programs prior to transmission across a network |
| 03/30/1999 | US5890124 Windowing method for decoding of MPEG audio data |
| 03/30/1999 | US5889950 Method and apparatus for distribution of broadcast data |
| 03/30/1999 | US5889949 Processing system with memory arbitrating between memory access requests in a set top box |
| 03/30/1999 | US5889921 Apparatus for controlling a sum of varying information amount of a video signal and a varying information amount of an audio signal so that the sum is within a predetermined amount of data range |
| 03/30/1999 | US5889919 Copy protect recording and playback system that enables single authorized recording of protected broadcasts be made |
| 03/25/1999 | WO1999014953A1 Access system and method for providing interactive access to an information source through a networked distribution system |
| 03/25/1999 | WO1999014687A2 Continuous media file server and method for scheduling network resources |
| 03/25/1999 | CA2304228A1 Access system and method for providing interactive access to an information source through a networked distribution system |
| 03/24/1999 | EP0903698A2 Recording and/or reproducing three-dimensional image data |
| 03/24/1999 | EP0903041A2 Improvements in or relating to changing the bit rate of a signal |
| 03/24/1999 | EP0903039A1 Program guide for dbs and cable tv |
| 03/24/1999 | EP0903038A1 An adaptive decoding system for processing encrypted and non-encrypted video data |
| 03/24/1999 | EP0903036A1 Processing of digital data and program guide information |
| 03/24/1999 | EP0903035A1 Packetized data formats for digital data storage media |
| 03/24/1999 | EP0903034A1 Decoding of digital data including program specific information |
| 03/24/1999 | EP0902928A1 System for using media content in interactive digital media program |
| 03/24/1999 | EP0738450B1 Consumer interface for a digital television system |
| 03/24/1999 | EP0677834B1 Portable liquid crystal display device and method for changing receivable channel of it |
| 03/24/1999 | EP0627153B1 Hdtv receivers with a circuit for conversion of high resolution data into lower resolution data |
| 03/23/1999 | US5887130 Information processing apparatus, information processing method, data recording medium, and information processing system |
| 03/23/1999 | US5887110 Video data playback system using effective scheme for producing coded video data for fast playback mode |
| 03/23/1999 | US5887061 Compression coding device with scrambling function and expansion reproducing device with descrambling function |
| 03/23/1999 | US5886995 Dynamic mapping of broadcast resources |
| 03/23/1999 | US5886752 Spurious free wideband phase and frequency modulator using a direct digital synthesis alias frequency band |
| 03/23/1999 | US5886733 Method and apparatus for successive refinement of broadcasted video frames |
| 03/23/1999 | US5886732 Set-top electronics and network interface unit arrangement |
| 03/23/1999 | US5886697 Method and apparatus for improved graphical user interface having anthropomorphic characters |
| 03/23/1999 | CA2147908C Circuit for broadband video transmission over unshielded twisted wire pairs |
| 03/23/1999 | CA2123814C Audio/visual apparatus and remote-controller for the control thereof |
| 03/18/1999 | WO1999013641A1 Program guide application interface system |
| 03/18/1999 | WO1998054910A3 Method of switching video sequences and corresponding switching device and decoding system |
| 03/18/1999 | WO1998052285A3 Digital video transport error handling in cell based communications systems |
| 03/17/1999 | EP0901718A1 Method and apparatus for splicing compressed information streams |
| 03/16/1999 | US5884256 Networked stenographic system with real-time speech to text conversion for down-line display and annotation |
| 03/16/1999 | US5883661 Output switching for load levelling across multiple service areas |
| 03/16/1999 | US5883621 Device control with topology map in a digital network |
| 03/11/1999 | WO1999012348A1 Optical disc for recording high resolution and normal image, optical disc player, optical disc recorder, and playback control information generator |
| 03/11/1999 | WO1999012126A1 Computational graceful degradation method using priority information in multiple objects case |
| 03/11/1999 | WO1999012091A2 Multiple-screen video adapter with television tuner |
| 03/10/1999 | EP0901285A1 Device, system, and method for distributing video data |
| 03/10/1999 | EP0900499A1 Television schedule system with access control |
| 03/10/1999 | EP0900491A1 A method and apparatus for using network address information to improve the performance of network transactions |
| 03/10/1999 | CN1210423A Circuits and systems for generating and communicating advanced television signals |
| 03/09/1999 | US5881245 Method and apparatus for transmitting MPEG data at an adaptive data rate |
| 03/09/1999 | US5881203 Data recording method and apparatus data record medium and data reproducing method and apparatus |
| 03/09/1999 | US5880768 Interactive program guide systems and processes |
| 03/04/1999 | WO1999011066A1 Information transmitting method and television broadcast receiver |
| 03/04/1999 | WO1999011065A1 Systems and methods for replacing television signals |
| 03/04/1999 | WO1999011061A1 A method and apparatus for generating and displaying a broadcast system program guide |
| 03/04/1999 | WO1999011059A1 Receiver, program retrieval method, and receiving method |
| 03/04/1999 | CA2302031A1 Systems and methods for replacing television signals |
| 03/03/1999 | EP0899924A2 Apparatus for and method of transmitting data streams representing 3-dimensional virtual space |
| 03/03/1999 | EP0898838A1 A modem with ip support |
| 03/03/1999 | EP0898837A2 An access network over a dedicated medium |
| 03/03/1999 | EP0898833A1 An access network over a shared medium |
| 03/03/1999 | EP0765501B1 Smart card message transfer without microprocessor intervention |
| 03/03/1999 | EP0683955A4 Management of channel buffer in video decoders. |
| 03/03/1999 | EP0673578B1 Apparatus and method for use in a digital cable headend for cable television delivery system |
| 03/02/1999 | US5878222 Method and apparatus for controlling video/audio and channel selection for a communication signal based on channel data indicative of channel contents of a signal |
| 03/02/1999 | US5878186 Audio and video transcription system for manipulating real-time testimony |
| 03/02/1999 | US5878183 Digital video/audio recording and reproducing apparatus |
| 03/02/1999 | US5878135 Decoding system for processing encrypted broadcast, cable or satellite video data |
| 03/02/1999 | US5878134 Secure access systems utilizing more than one IC card |
| 03/02/1999 | US5877877 Apparatus for remedying errors in head end monitoring block, and control method therefor |
| 03/02/1999 | US5877812 Method and apparatus for increasing channel utilization for digital video transmission |
| 03/02/1999 | US5877755 Interactive broadband multimedia system |
| 03/02/1999 | US5876286 Game apparatus for television and control method thereof |
| 03/02/1999 | CA2123951C Output-buffer switch for asynchronous transfer mode |
| 02/25/1999 | WO1999009748A1 Digital camcorder apparatus with mpeg-2-compatible video compression |
| 02/25/1999 | WO1999009747A1 Video transmission apparatus employing intra-frame-only video compression that is mpeg-2 compatible |
| 02/25/1999 | WO1999009741A1 Channel changer for use in a switched digital video system |
| 02/25/1999 | WO1999009684A1 Post-compression hidden data transport for video |
| 02/25/1999 | WO1998053391A3 Spatial browsing approach to multimedia information retrieval |
| 02/24/1999 | EP0897625A1 System and method for high-speed skew-insensitive multi-channel data transmission |
| 02/24/1999 | EP0850541B1 Upgradable on-screen display |
| 02/24/1999 | EP0707772B1 System for multiplexed transmission of compressed video and auxiliary data |
| 02/24/1999 | CN1209247A Copy protection recording and playback system |
| 02/24/1999 | CN1042283C Favorite channel selection using extended keypress |
| 02/23/1999 | US5875007 Motion image (MPEG II) video stream multiplexing system |
| 02/23/1999 | US5875001 HDTV receiver |
| 02/23/1999 | US5874992 Cable television data bit path error analyzer |
| 02/23/1999 | US5874986 Method for communicating audiovisual programs over a communications network |
| 02/23/1999 | US5874985 Message delivery method for interactive televideo system |
| 02/23/1999 | US5874906 Data entry system |
| 02/18/1999 | WO1999008165A1 Automatic configuration mechanism for universal remote |
| 02/17/1999 | EP0897245A2 MPEG frame processing method and apparatus |
| 02/17/1999 | EP0896775A1 Information system |
| 02/17/1999 | EP0896774A1 Tv with url reception for internet access |
| 02/17/1999 | EP0786122B1 Intelligent digital audiovisual playback system |
| 02/17/1999 | EP0674824B1 Television program delivery system |
| 02/17/1999 | EP0673580B1 An operation center for a television program packaging and delivery system |
| 02/17/1999 | CN1208532A Program reception lexecution apparatus which can start execution of program even when only part of program is received, and program transmitter for it |
| 02/17/1999 | CN1208531A Method and apparatus for displaying textual or graphic data on the screen of television receivers |
| 02/17/1999 | CN1208220A Method for decoding video data in DVD player |
| 02/16/1999 | US5873022 Method of receiving compressed video signals using a latency buffer during pause and resume |