| Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445) |
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| 09/05/2002 | US20020124250 Hybrid advertising broadcast method |
| 09/05/2002 | US20020124249 Targeted advertising during playback of stored content |
| 09/05/2002 | US20020124246 Methods, systems and program products for tracking information distribution |
| 09/05/2002 | US20020124193 System and method for switching voltage |
| 09/05/2002 | US20020124182 Method and system for targeted content delivery, presentation, management and reporting in a communications nertwork |
| 09/05/2002 | US20020124093 Storage medium and downloading method |
| 09/05/2002 | US20020124077 Advertising and audience authentication with server-side measurement and client-side verification |
| 09/05/2002 | US20020124071 Method and apparatus for customizing multimedia channel maps |
| 09/05/2002 | US20020122585 Electronic stereoscopic media delivery system |
| 09/05/2002 | US20020122568 Digital authentication with digital and analog documents |
| 09/05/2002 | US20020122430 System and method for seamless switching |
| 09/05/2002 | US20020122154 Apparatus and method for building a playlist |
| 09/05/2002 | US20020122137 System for selecting, accessing, and viewing portions of an information stream(s) using a television companion device |
| 09/05/2002 | US20020122136 Methods and apparatus for the provision of user selected advanced closed captions |
| 09/05/2002 | US20020122079 Multimedia interactive device function selection based upon button depression duration |
| 09/05/2002 | US20020122052 Apparatus and method for monitoring the status of a digital cinema system |
| 09/05/2002 | US20020122042 System and method for tracking an object in a video and linking information thereto |
| 09/04/2002 | EP1237367A1 Program guide system with targeted advertising |
| 09/04/2002 | EP1237366A2 Methods and apparatus for the provision of user selected advanced closed captions |
| 09/04/2002 | EP1237319A1 Methods and apparatus for efficient and accurate coarse timing synchronization in burst demodulators |
| 09/04/2002 | EP1236357A2 Method and apparatus for two-way internet access over a catv network with channel tracking |
| 09/04/2002 | EP1236355A1 Method and system for automatically locating set-top terminals within a cable television system |
| 09/04/2002 | EP1236354A1 Internet radio and broadcast method |
| 09/04/2002 | EP1236333A2 Telephone answering device with digital video recorder |
| 09/04/2002 | EP1034633A4 Method of providing and retrieving a data segment |
| 09/04/2002 | EP0683955B1 Management of channel buffer in video decoders |
| 09/04/2002 | CN1367986A Scaling independent technique for watermarking images |
| 09/04/2002 | CN1367610A Noise-preventing device and signal amplifier, protector and wireless plug |
| 09/04/2002 | CN1367486A 数据复制装置 Data replication device |
| 09/03/2002 | US6446261 Set top device for targeted electronic insertion of indicia into video |
| 09/03/2002 | US6446130 Multimedia delivery system |
| 09/03/2002 | US6446082 Method of receiving time-specified program contents |
| 09/03/2002 | US6445738 System and method for creating trick play video streams from a compressed normal play video bitstream |
| 09/03/2002 | US6445421 Method and apparatus for displaying the subtitle of multiple language between human-machine interface |
| 09/03/2002 | US6445306 Remote control program selection by genre |
| 08/29/2002 | WO2002067591A2 Video bitstream washer |
| 08/29/2002 | WO2002067588A2 Video communication system employing multiple state encoding and path diversity |
| 08/29/2002 | WO2002067587A1 Content based video selection |
| 08/29/2002 | WO2002067586A1 Transmitter |
| 08/29/2002 | WO2002067580A1 System and method for selling advertising space on electronic displays using digital television spectrum |
| 08/29/2002 | WO2002067579A1 System and method for delivering radio programs and related schedule information |
| 08/29/2002 | WO2002067578A2 Television viewer profile initializer and related methods |
| 08/29/2002 | WO2002067571A2 A system and method for processing multiple broadcast multimedia streams |
| 08/29/2002 | WO2002067548A1 Encrypted media key management |
| 08/29/2002 | WO2002067537A2 Data streaming system substituting local content for unicasts |
| 08/29/2002 | WO2002067473A2 Broadcast and processing of meta-information associated with content material |
| 08/29/2002 | WO2002067225A2 Grouping advertisement subavails |
| 08/29/2002 | WO2002067130A1 Advertising and audience authentication with server-side measurement and client-side verification |
| 08/29/2002 | WO2002067120A1 System and method for multicast stream failover |
| 08/29/2002 | WO2002013430A3 Clock analysis |
| 08/29/2002 | WO2002009432A3 Branded channel |
| 08/29/2002 | WO2001084831A3 Navigation menu for access to television services |
| 08/29/2002 | US20020120945 Software bus and interface for digital television application software environments |
| 08/29/2002 | US20020120941 Cable modem apparatus and frequency setting method applied thereto |
| 08/29/2002 | US20020120939 Webcasting system and method |
| 08/29/2002 | US20020120935 Interactive order system for television and streaming media |
| 08/29/2002 | US20020120934 Interactive television browsing and buying method |
| 08/29/2002 | US20020120933 Program guide system with flip and browse advertisements |
| 08/29/2002 | US20020120932 Omni menu for an audio/visual network |
| 08/29/2002 | US20020120931 Content based video selection |
| 08/29/2002 | US20020120929 Method and system for mass customization of digital television broadcasts |
| 08/29/2002 | US20020120927 Broadcasting system and an information broadcast receiving terminal apparatus used therein |
| 08/29/2002 | US20020120885 Apparatus and method for upgrading software |
| 08/29/2002 | US20020120818 Method of cache replacement for streaming media |
| 08/29/2002 | US20020120790 Content proxy method and apparatus for digital television environment |
| 08/29/2002 | US20020120675 Method of transferring media files over a communications network |
| 08/29/2002 | US20020120504 Computerized system and method for increasing the effectiveness of advertising |
| 08/29/2002 | US20020118960 Optical disc, a recorder, a player, a recording method, and a reproducing method that are all used for the optical disc |
| 08/29/2002 | US20020118954 Data storage management and scheduling system |
| 08/29/2002 | US20020118952 Video playback unit, video delivery unit and recording medium |
| 08/29/2002 | US20020118834 Analog privacy scrambler and scrambling method |
| 08/29/2002 | US20020118747 Frame bit-size allocation for seamlessly spliced, variable-encoding-rate, compressed digital video signals |
| 08/29/2002 | US20020118699 Allocating access across a shared communications medium to user classes |
| 08/29/2002 | US20020118680 Media router and method for recording/reproducing broadcasting signal by using the same |
| 08/29/2002 | US20020118679 Efficient transport of program clock reference for audio services delivered on an MPEG-2 transport stream |
| 08/29/2002 | US20020118676 Access network over a shared medium |
| 08/29/2002 | US20020118608 Transmission device and method, reception device and method, recording medium and program |
| 08/29/2002 | US20020118307 Method for controlling memory in digital system |
| 08/29/2002 | US20020118306 Method for controlling memory in digital system |
| 08/29/2002 | US20020118131 Transformer remote control |
| 08/29/2002 | CA2438620A1 Content based video selection |
| 08/29/2002 | CA2438451A1 System and method for selling advertising space on electronic displays using digital television spectrum |
| 08/28/2002 | EP1235433A2 Fiber to the home (FTTH) multimedia access system with reflection pon |
| 08/28/2002 | EP1235223A2 Advanced television system |
| 08/28/2002 | EP0986902B1 System and method for changing program guide format |
| 08/28/2002 | EP0947096B1 Set top device for targeted electronic insertion of indicia into video |
| 08/28/2002 | EP0945020B1 Scalable media delivery system |
| 08/28/2002 | EP0938810B1 Semiconductor imaging sensor with on-chip encryption |
| 08/28/2002 | EP0772927A4 Method for dynamically allocating communication channel bandwidth between competing applications |
| 08/28/2002 | CN1366779A Bit rate allocation in joint bit rate transcoding |
| 08/28/2002 | CN1366771A Electronic program guide viewing history generator method and system |
| 08/28/2002 | CN1366770A System and method for improving video transmission over wireless network |
| 08/27/2002 | US6442757 System and method of channel map correction in an EPG guide |
| 08/27/2002 | US6442756 System and method for transporting, processing, storing and displaying EIT and EPG information in a television system context |
| 08/27/2002 | US6442755 Electronic program guide using markup language |
| 08/27/2002 | US6442658 Method and apparatus for improving playback of interactive multimedia works |
| 08/27/2002 | US6442630 Electronic device that controls the vailidity of information based on a selected function unit |
| 08/27/2002 | US6442604 Incremental archiving and restoring of data in a multimedia server |
| 08/27/2002 | US6442599 Video storage unit architecture |
| 08/27/2002 | US6442334 Data recording method and apparatus, data recording medium, and data reproducing method and apparatus |