Patents
Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445)
07/2004
07/01/2004CA2802371A1 Information processing apparatus, information processing method and recording medium
07/01/2004CA2802364A1 Information processing apparatus, information processing method and recording medium
06/2004
06/30/2004EP1434432A2 Interactive television program guide system with local advertisements
06/30/2004EP1433341A2 Dynamic content delivery responsive to user requests
06/30/2004EP1433334A1 Recording and re-insertion of teletext data
06/30/2004EP1433331A2 Video capture device and method of sending high quality video over a low data rate link
06/30/2004EP1433327A2 Method and system for providing an audio/video in-route entertainment system
06/30/2004EP1433324A2 System for delivering data over a network
06/30/2004EP1433321A1 Storage of audio/visual program data with associated promotional material
06/30/2004EP1433320A2 Implementation of mandatory segments in multimedia content
06/30/2004EP1433315A1 Displaying program guide responsive to program guide data and program recording indicators
06/30/2004EP1433312A1 Real-time event recommendation system and method for media programming using personal schedule
06/30/2004EP1433311A2 Method and system for displaying time-ordered options
06/30/2004EP1433104A2 Non-deterministic method and system for the optimization of targeted content delivery
06/30/2004EP1433083A2 Personalized recommender profile modification using profiles of others
06/30/2004EP1433080A1 Multi-lingual transcription system
06/30/2004EP1433063A1 Method of securely processing a digital signal
06/30/2004EP1303979A4 System for displaying an integrated portal screen
06/30/2004CN1156171C Device for raising processing efficiency of image and sound
06/30/2004CN1156162C Apparatus and method for synchronizing audio/video signal
06/30/2004CN1156158C Data receiving-processing apparatus and method and broadcasting method
06/30/2004CN1156103C Method and apparatus for digital radio broadcasting performance, apparatus for receiving said performance and digital radio receiver
06/29/2004US6757913 Wireless music and data transceiver system
06/29/2004US6757912 Channel server functionality
06/29/2004US6757911 Digital broadcasting system, digital broadcasting apparatus, and a reception apparatus for digital broadcasts
06/29/2004US6757909 Internet set-top box having an in-band tuner and cable modem
06/29/2004US6757765 Electronic device, method for using electronic device, and electronic device system for reserving bus usage time on a bus to conduct communications between electronic devices
06/29/2004US6757735 Method for distributing multiple description streams on servers in fixed and mobile streaming media systems
06/29/2004US6757707 Displayed complementary content sources in a web-based TV system
06/29/2004US6757691 Predicting content choices by searching a profile database
06/29/2004US6757478 Method and apparatus for receiving a digital signal and apparatus for recording and reproducing the digital signal
06/29/2004US6757333 Video signal processing
06/29/2004US6757288 Device and method for controlling a data transmission operation between a first ATM device and a second ATM device
06/29/2004US6757253 Spectrum management method for a cable data system
06/29/2004US6757024 Timing recovery apparatus and method for digital TV using envelope of timing error
06/29/2004US6757001 Method of using physical buttons in association with a display to access and execute functions available through associated hardware and software
06/29/2004CA2151457C Digital cable headend for cable television delivery system
06/24/2004US20040123312 Contents distributing method via a communications network
06/24/2004US20040123135 Method of setting parental lock levels based on example content
06/24/2004US20040122753 System for card-based service access
06/24/2004US20040121297 Interactive communication system for communicating video game and karaoke software
06/24/2004US20040119815 Simplified interactive user interface for multi-video channel navigation
06/24/2004US20040119706 Display control device and method
06/23/2004EP1432248A1 Menu-driven television program access system and method
06/23/2004EP1431864A2 Systems and methods for secure transaction management and electronic rights protection
06/23/2004EP1430727A1 Method for generating a scalable encoded video bitstream with a constant quality
06/23/2004EP1430722A1 Metadata handling device
06/23/2004EP1430721A2 Method for delivering transport stream data
06/23/2004EP1430718A2 Cable modem upstream amplifier power management
06/23/2004EP1430717A1 Processing of a broadcast signal
06/23/2004EP1430707A2 System and method for multichannel short range media transfer and storage
06/23/2004EP1430692A1 Quality adaption for real-time multimedia content delivery based on user attention
06/23/2004EP1430613A1 Scene cut detection in a video bitstream
06/23/2004EP1348194B1 System and method for switching voltage
06/23/2004CN1155252C Method for computering moderate distorsion in vide compressing system
06/23/2004CN1155251C 场识别系统 Field identification system
06/23/2004CN1155248C Decoding apparatus/method and data format for processing and storing encrypted video data
06/23/2004CN1155241C Receiver and transmitter-receiver
06/23/2004CN1155240C Video signal transmission device
06/23/2004CN1155236C TV system and method for selecting custom amony various lists of TV channel
06/23/2004CN1155192C Method and apparatus for providing enciphered key to enciphered processed information
06/22/2004US6754905 Data structure and methods for providing an interactive program guide
06/22/2004US6754904 Informing network users of television programming viewed by other network users
06/22/2004US6754443 Media server system having improved asset types for playback of digital media
06/22/2004US6754394 Compression and decompression system with reversible wavelets and lossy reconstruction
06/22/2004US6754392 Switching between decoded image channels
06/22/2004US6754315 Internet telephone system and terminal device
06/22/2004US6754280 Method for dealing with missing or untimely synchronization signals in digital communications systems
06/22/2004US6754276 System stream creating apparatus which adjusts system clock reference based on total number of pictures to be stored and decoded during certain time period
06/22/2004US6753758 System and method for switching voltage
06/17/2004WO2003047235A3 Interactive television program guide for recording enhanced video content
06/17/2004US20040117841 Digital broadcast reception apparatus
06/17/2004US20040117830 Receiving apparatus and method
06/17/2004US20040114811 Computational graceful degradation method using priority information in multiple objects case
06/17/2004US20040114810 Compression and decompression system with reversible wavelets and lossy reconstruction
06/17/2004US20040113939 Adaptive display system
06/16/2004EP1429558A2 Adaptive display system
06/16/2004EP1429550A2 Compositing MPEG video streams for combined image display
06/16/2004EP1429549A1 Program detail information display apparatus and method thereof
06/16/2004EP1428390A1 Mpeg-4 remote communication device
06/16/2004EP1428386A1 Control device with easy lock feature
06/16/2004EP1428384A1 Communicating a channel-change event from a set top box to a digital video recorder
06/16/2004EP1428383A1 System and method for enabling a remote control to automatically and dynamically set-up a v-chip
06/16/2004EP1428382A1 Method and apparatus to select content
06/16/2004EP1428376A2 Methods and apparatus for transmission of television and additional data on separate channels
06/16/2004EP1428374A1 Process, arrangement, devices for seizure of a shared telephone line
06/16/2004EP1428147A2 Automatic content analysis and representation of multimedia presentations
06/16/2004EP1428108A1 Device for interacting with real-time streams of content
06/16/2004EP1371170A4 Encrypted media key management
06/16/2004EP0862831B1 Method and apparatus for displaying textual or graphic data on the screen of television receivers
06/16/2004CN1505898A System and method for distinguishing between indentically titled programs
06/16/2004CN1505896A Method for searching of an electronic program guide
06/16/2004CN1505895A System and method for simplifying different types of searches in electronic program guide
06/16/2004CN1505291A Audience measurement system for digital television
06/16/2004CN1154362C Method for controlling and transferring digital compressed viewdata in heterogeneous communication network and its equipment
06/16/2004CN1154359C Method for selecting upgraded media feature related to entertainment program
06/16/2004CN1154357C Reverse signal transmission apparatus in service system using cable TV network
06/16/2004CN1154351C System for forming and processing program speific information for terrestrial, cable or satellite broadcast
06/16/2004CN1154105C System and method for copy protection for digital signals
06/15/2004US6751802 Method of transmitting and receiving compressed television signals