| Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445) |
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| 05/04/2011 | CN102047678A Systems, methods and apparatus for reducing unauthorized use in a television distribution system |
| 05/04/2011 | CN102047677A A method for switching a multimedia source and multimedia sink from an operating mode to a standby mode, and from a standby mode to an operating mode |
| 05/04/2011 | CN102047676A Server device, communication method, and program |
| 05/04/2011 | CN102047675A Server device, communication method, and program |
| 05/04/2011 | CN102047660A Systems, methods and apparatus for exchanging data between television receivers over a wireless communication link |
| 05/04/2011 | CN102047641A Methods and apparatus for sampling usage information from a pool of terminals in a data network |
| 05/04/2011 | CN102047640A Multi-head hierarchically clustered peer-to-peer live streaming system |
| 05/04/2011 | CN102047628A IPTV security in a communication network |
| 05/04/2011 | CN102047285A Systems and methods for distributing and redeeming credits on a broadcast system |
| 05/04/2011 | CN102045639A Order relation authentication method, system and receiving system of mobile multimedia broadcasting condition |
| 05/04/2011 | CN102045597A Method of processing application in digital broadcast receiver and digital broadcast receiver |
| 05/04/2011 | CN102045596A Mobile phone terminals and method for forwarding mobile phone television program information |
| 05/04/2011 | CN102045595A System for realizing standby and awakening of set top box by utilizing singlechip |
| 05/04/2011 | CN102045594A Method for forecasting adult height of children by using set top box |
| 05/04/2011 | CN102045593A Set top box and method for calculating body weight |
| 05/04/2011 | CN102045592A STB (Set Top Box) and method for realizing personalized advertisement play through same |
| 05/04/2011 | CN102045591A Method for recording media access control (MAC) address and K code of set top box of disposable recorder |
| 05/04/2011 | CN102045590A System and method for partially encrypted multimedia stream |
| 05/04/2011 | CN102045589A Method and device for surveying television or radio audience rating |
| 05/04/2011 | CN102045588A Digital TV (television) advertisement and VOD (video on demand) integrated system |
| 05/04/2011 | CN102045587A Broadcasting system interworking with electronic devices |
| 05/04/2011 | CN102045586A Network device, information processing apparatus, stream switching method and content distribution system |
| 05/04/2011 | CN102045521A Digital television channel searching method and digital television employing same |
| 05/04/2011 | CN102045382A Method and system for providing content |
| 05/04/2011 | CN102045351A Streaming media publishing platform and method |
| 05/04/2011 | CN102043983A Excess feed rate division calculator model, set top box device and mobile storage device |
| 05/04/2011 | CN102043933A SD (Secure Digital) card reader module with controllable operating state |
| 05/04/2011 | CN102043842A USB interface tag extension method based on HSML |
| 05/04/2011 | CN102043825A Motion picture providing apparatus, motion picture providing method, and program |
| 05/04/2011 | CN101640786B Video navigation method and video navigation system |
| 05/04/2011 | CN101631250B Synchronizing device and method |
| 05/04/2011 | CN101631232B Method and device for identifying roaming of digital TV user |
| 05/04/2011 | CN101562724B Method for realizing switching between two CA systems on set-top box |
| 05/04/2011 | CN101502108B Method of controlling epg receiver and epg receiver using the same |
| 05/04/2011 | CN101448137B Method for video ordering |
| 05/04/2011 | CN101399676B Power saving via variable listen intervals in a wlan |
| 05/04/2011 | CN101395916B Method and apparatus for storing and reproducing interactive service of digital broadcast |
| 05/04/2011 | CN101389015B Decoder with elastic length |
| 05/03/2011 | US7937729 Receiving apparatus |
| 05/03/2011 | US7934834 Method and apparatus for wireless image transmission to a projector |
| 05/03/2011 | CA2684678A1 System and method for dynamic post-processing on a mobile device |
| 05/03/2011 | CA2421788C Regeneration of program clock reference data for mpeg transport streams |
| 05/03/2011 | CA2364733C System and method for interactive distribution of selectable presentations |
| 04/30/2011 | CA2719315A1 Network interface to content source |
| 04/28/2011 | WO2011048562A1 Bookmark calibration for video on demand applications incorporating dynamic advertising |
| 04/28/2011 | US20110099573 Program guide application interface system |
| 04/28/2011 | US20110099288 Dynamic server side filter creation |
| 04/27/2011 | EP2315455A2 AV delay measurement and correction via signature curves |
| 04/27/2011 | EP2315441A1 Data transmission device, data reception device, method for transmitting data, method for receiving data, and method for controlling audio-visual environment |
| 04/27/2011 | EP2315440A2 Television apparatus and circuit |
| 04/27/2011 | EP2315437A2 Video interaction |
| 04/27/2011 | EP2315408A2 Apparatuses, systems, and methods for renewability with digital content protection systems |
| 04/27/2011 | EP2315385A2 Method and apparatus for encoding multimedia contents based on quality and rate information |
| 04/27/2011 | EP2315187A2 Display apparatus, system and method for outputting data |
| 04/27/2011 | EP2314072A1 Method and apparatus for track and track subset grouping |
| 04/27/2011 | CN201813499U Digital set top box with multimedia movie playing function |
| 04/27/2011 | CN201813498U Dual-mode set-top box |
| 04/27/2011 | CN201813497U Terminal device for realizing control on multiple set top boxes |
| 04/27/2011 | CN201813496U Digital video broadcasting (DVB) video gateway system |
| 04/27/2011 | CN201813464U 电视接收设备 Television receiving equipment |
| 04/27/2011 | CN201813400U Technical system for cloud video multi-device fusion |
| 04/27/2011 | CN201810968U Set top box bracket |
| 04/27/2011 | CN102036123A Synchronization method and system for single frequency network digital broadcast television system |
| 04/27/2011 | CN102036122A Method, device and system for transmitting email information to Internet protocol television (IPTV) terminal |
| 04/27/2011 | CN102036121A Digital television browser based mosaic video navigation method |
| 04/27/2011 | CN102036120A Favorite program management and intelligent prompting technique for TV (television) |
| 04/27/2011 | CN102036119A 电子节目指南 Electronic program guide |
| 04/27/2011 | CN102036118A Content broadcast device, content broadcast method, content reception device, content reception method, program, and content broadcast system |
| 04/27/2011 | CN102036117A Television program broadcasting method for remembering user interests and system thereof |
| 04/27/2011 | CN102036116A Method and system for obtaining standby information based on web television |
| 04/27/2011 | CN102036115A Digital television service data management method, server and terminal |
| 04/27/2011 | CN102036114A Digital television service data management method, server and terminal |
| 04/27/2011 | CN102036113A Control method of digital television programs, television data card and digital televiewing system |
| 04/27/2011 | CN102036112A Digital television terminal and use method of Internet Protocol Television business thereof |
| 04/27/2011 | CN102036111A Home gateway and digital television as well as method for selecting programs by remotely controlling home gateway |
| 04/27/2011 | CN102036110A Method and device for realizing interactive entertainment through television |
| 04/27/2011 | CN102036109A Digital television interactive application middleware system based on three-network convergence |
| 04/27/2011 | CN102036108A Method and equipment for realizing audience rating investigation by using digital television terminal |
| 04/27/2011 | CN102036107A Method, system and commodity service terminal for TV shopping based on interactive VOD system |
| 04/27/2011 | CN102036106A Insertion method and system of content into media streams |
| 04/27/2011 | CN102036105A Method and system for multicasting digital TV signal monitoring instructions |
| 04/27/2011 | CN102036104A Video on demand access control method |
| 04/27/2011 | CN102036103A Set-top box and video-on-demand method thereof |
| 04/27/2011 | CN102036102A System and method for transcoding multimedia and system and method for playing multimedia |
| 04/27/2011 | CN102036101A Digital television short-message-on-demand system |
| 04/27/2011 | CN102036100A Method and system for realizing internet fictitious KTV (Karaok TV) entertainment |
| 04/27/2011 | CN102036079A Omni-directional prediction error histogram modification-based reversible image watermarking algorithm |
| 04/27/2011 | CN102036058A Method, server, terminal and system for switching videos in video monitoring system |
| 04/27/2011 | CN102036048A Method and system for voice and video calls |
| 04/27/2011 | CN102036040A Fixing device for television receiving box of panel television |
| 04/27/2011 | CN102035829A Encryption apparatus, decryption apparatus, licensing apparatus and content data generation method |
| 04/27/2011 | CN102035825A Adaptive QOS (quality of service) multimedia transmission method applicable to set top box |
| 04/27/2011 | CN102034405A Interactive advertising announcement system |
| 04/27/2011 | CN102034197A Method and system for managing an interactive video display system |
| 04/27/2011 | CN101500147B Digital television receiving control method and apparatus based on bi-directional network |
| 04/27/2011 | CN101483565B Stream data network transmission system and method |
| 04/27/2011 | CN101313571B Network camera, network camera system, monitor method |
| 04/26/2011 | US7934234 Transmission and reception of television programmes and other data |
| 04/26/2011 | US7934232 Navigation paradigm for access to television services |
| 04/26/2011 | US7934009 Discovery information for IP multicast |