| Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445) |
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| 06/20/2006 | US7065498 Supply of digital audio and video products |
| 06/20/2006 | US7065418 Systems and methods for encoding a DMX data stream and decoding an AES digital audio stream |
| 06/20/2006 | US7065287 Apparatus, method and database for control of audio/video equipment |
| 06/20/2006 | US7065213 In a subscriber network receiving digital packets and transmitting digital packets below a predetermined maximum bit rate |
| 06/15/2006 | US20060130109 Multimode interactive television chat |
| 06/15/2006 | US20060129805 Method of managing user key for broadcast encryption |
| 06/15/2006 | US20060129688 Method and system for enabling presenation of auxiliary content |
| 06/15/2006 | US20060129519 Signal output apparatus and signal output method |
| 06/15/2006 | US20060129493 Usage rights grammar and digital works having usage rights created with the grammar |
| 06/15/2006 | US20060129492 Usage rights grammar and digital works having usage rights created with the grammar |
| 06/15/2006 | US20060125959 Video processing device |
| 06/15/2006 | US20060125690 Methods and apparatus for identifying asset location in communication networks |
| 06/15/2006 | US20060124720 Method for tracking the size of a multicast audience |
| 06/15/2006 | CA2826977A1 Technique for securely communicating programming content |
| 06/14/2006 | EP1668914A1 Audio based methods and apparatus for detecting a channel change event |
| 06/14/2006 | EP1388260B1 Interactive media response processing system |
| 06/14/2006 | CN1787618A Audio video wireless receiving device |
| 06/14/2006 | CN1259798C Interactive television program guide system with local advertisements |
| 06/13/2006 | US7062779 Methods and apparatus for accessing synchronized broadcast data |
| 06/13/2006 | US7062777 Television control interface with electronic guide |
| 06/13/2006 | US7062467 Information distributing method and system |
| 06/13/2006 | US7062097 Computational graceful degradation method using priority information in multiple objects case |
| 06/13/2006 | US7062046 Method and system for tracing an analog copy of a digital work to a unique digital copy and a particular digital player |
| 06/13/2006 | US7061937 Communication system |
| 06/13/2006 | US7061930 Data selection/storage apparatus and data processing apparatus using data selection/storage apparatus |
| 06/13/2006 | US7061920 Streaming media quality analyzer system |
| 06/13/2006 | US7059724 Image projection system and a method of controlling a projected pointer |
| 06/13/2006 | CA2272921C Method of processing encrypted video data for generating decrypted program data |
| 06/10/2006 | CA2841284A1 Accelerated channel charge in rate-limited environments |
| 06/08/2006 | US20060123459 AV equipment |
| 06/08/2006 | US20060123443 Inserting local signals during channel changes |
| 06/08/2006 | US20060120562 Apparatus and method for watermarking a digital image |
| 06/08/2006 | US20060120525 Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels |
| 06/08/2006 | US20060120466 Editing system, editing controlling apparatus, and editing controlling method |
| 06/07/2006 | EP1667468A1 Multiple content supplier video asset scheduling |
| 06/07/2006 | EP1667458A1 AV equipment |
| 06/07/2006 | EP1667447A1 Data conversion system |
| 06/07/2006 | EP1472845B1 Targeted scalable video multicast based on client bandwidth or capability |
| 06/07/2006 | EP1402704B1 System and method for receiving multiple description media streams in fixed and mobile streaming media systems |
| 06/07/2006 | EP1371225A4 A low-delay video encoding method for concealing the effects of packet loss in multi-channel packet switched networks |
| 06/07/2006 | EP1273169B1 Systems and methods for reducing cut-offs in program recording |
| 06/07/2006 | EP1040664B1 System for acquiring information requested by a user via a program guide selection |
| 06/07/2006 | EP0966715B1 System and method for selection and retrieval of diverse types of video data on a computer network |
| 06/07/2006 | CN1783999A Flow control for multiple information sources |
| 06/07/2006 | CN1783997A Mobile multimedia terminal for digital video broadcast |
| 06/07/2006 | CN1783949A Information equipment and portable information device |
| 06/07/2006 | CN1783779A Authentification of data in a digital transmission system |
| 06/07/2006 | CN1783140A Information content transmission apparatus |
| 06/07/2006 | CN1258928C Error concealing method for error concealing in improved video encoding and encoder |
| 06/07/2006 | CN1258898C Method for managing symmetrical secret key in communication network, and device for carrying out such method |
| 06/06/2006 | US7058967 Video distribution system and method |
| 06/06/2006 | US7058966 Optical communication system for transmitting RF signals downstream and bidirectional telephony signals which also include RF control signals upstream |
| 06/06/2006 | US7058815 Method and system for digitally signing MPEG streams |
| 06/06/2006 | US7058809 Method and system to uniquely associate multicast content with each of multiple recipients |
| 06/06/2006 | US7058635 Method and apparatus for searching through an electronic programming guide |
| 06/06/2006 | US7058609 Pay by time system for content delivery to media playback systems |
| 06/06/2006 | US7058606 Method for loaning digital works |
| 06/06/2006 | US7058356 Telephone device with enhanced audio-visual features for interacting with nearby displays and display screens |
| 06/06/2006 | US7058179 Method and system for a secure high bandwidth bus in a transceiver device |
| 06/06/2006 | US7057670 Cursor control system |
| 06/06/2006 | US7057669 Language displaying apparatus for digital TV and method for the same |
| 06/06/2006 | US7057635 High-speed RF link for a multi-user meeting |
| 06/06/2006 | US7057622 Graphics display system with line buffer control scheme |
| 06/06/2006 | CA2226505C Apparatus for decoding video signals encoded in different formats |
| 06/01/2006 | WO2006057256A1 Restriction removal card for removing restriction on pay content |
| 06/01/2006 | US20060117366 Television tuning device screen saver advertising |
| 06/01/2006 | US20060117359 Fast Start-up for Digital Video Streams |
| 06/01/2006 | US20060117358 Fast Start-up for Digital Video Streams |
| 06/01/2006 | US20060117348 System and method for displaying editorial content through television navigation controls and electronic program guides |
| 06/01/2006 | US20060116869 Automatic keyword extraction apparatus, method, recording medium and program |
| 06/01/2006 | US20060115237 Advancing playback of video data based on parameter values of video data |
| 06/01/2006 | US20060115084 Conditional access for a multimedia broadcast service using a wireless terminal |
| 06/01/2006 | US20060114926 Methods of allocating access across a shared communications medium |
| 06/01/2006 | US20060114315 Mixed media telecommunication call manager |
| 05/31/2006 | EP1662792A2 Client-server based interactive television progrm guide system with remote server recording |
| 05/31/2006 | EP1662791A2 Client-server based interactive television program guide system with remote server recording |
| 05/31/2006 | EP1662768A2 Client-server based interactive television program guide system with remote server recording |
| 05/31/2006 | EP1662475A2 Method of and apparatus for setting-up configuration of display devices |
| 05/31/2006 | EP1662418A2 Systems and methods for secure transaction management and electronic rights protection |
| 05/31/2006 | EP1166558A4 System and method of inserting advertisements into an information retrieval system display |
| 05/31/2006 | CN1780337A Free disturbance service realization in telecommunication network |
| 05/31/2006 | CN1258286C EPG having PIP window history and sample view function |
| 05/31/2006 | CN1258275C Household network for controlling household electric appliance and its method |
| 05/30/2006 | US7055165 Method and apparatus for periodically delivering an optimal batch broadcast schedule based on distributed client feedback |
| 05/30/2006 | US7054849 Functional planning system |
| 05/30/2006 | US7054543 Recording medium of stream data, and recording method and playback method of the same |
| 05/30/2006 | US7054388 Signal detection method and apparatus, relevant program, and storage medium storing the program |
| 05/30/2006 | US7054371 System for real time transmission of variable bit rate MPEG video traffic with consistent quality |
| 05/30/2006 | US7054369 Method and system to improve the transport of compressed video data |
| 05/30/2006 | US7054368 Method and system to improve the transport of compressed video data |
| 05/30/2006 | US7054365 Method for providing variable bit rate in streaming service |
| 05/30/2006 | US7054335 Method and system for midstream transcoding of secure scalable packets in response to downstream requirements |
| 05/30/2006 | CA2348405C Method and system for facilitating telecommunications service provisioning and service assurance |
| 05/25/2006 | US20060112415 Method for parsing the size of contents to be reproduced in a mobile communication device |
| 05/25/2006 | US20060112401 Method and apparatus for signaling transmission code set in data broadcasting |
| 05/25/2006 | US20060109871 Method and apparatus for signaling transmission code set in data broadcasting |
| 05/25/2006 | US20060109858 Method and apparatus for signaling transmission code set in data broadcasting |
| 05/24/2006 | EP1659736A2 Conditional access for a multimedia broadcast service using a wireless terminal |
| 05/24/2006 | CN1778109A Information recording device, information output device, information recording program, information output program, recording medium, and information recording medium |
| 05/24/2006 | CN1777284A Image encoding method, image decoding method, and apparatus thereof |