Patents
Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445)
08/2004
08/11/2004CN1161929C Communication control method, system and equipment
08/10/2004US6775273 Simplified IP service control
08/10/2004US6774908 System and method for tracking an object in a video and linking information thereto
08/05/2004US20040150652 Graphics display system with window descriptors
08/05/2004CA2457505A1 Internet-based language archiving system and education facility
08/04/2004EP1443709A2 Network control system for home appliances
08/04/2004EP1443708A2 Network control system for home appliance
08/04/2004EP1443465A1 Face information transmission system
08/04/2004EP1443406A1 INFORMATION DELIVERY APPARATUS, INFORMATION PROCESSING TERMINAL, EXTERNAL CONTENT STORAGE METHOD, EXTERNAL CONTENT OUTPUT METHOD, CONTENT DATA, OUTPUT CONTROL PROGRAM, AND INFORMATION DELIVERY SYSTEM
08/04/2004EP1442598A1 Command packets for personal video recorder technical field of the invention
08/04/2004EP1442596A1 Business models, methods and apparatus for unlocking value-added services on the broadcast receivers
08/04/2004EP1442595A2 Video on demand gateway
08/04/2004EP1442592A1 Automatic viewing history based television control system
08/04/2004EP1442566A2 Method and system for transferring ip packets by aggregating multiple wireless communication channels for high data rate transfers
08/04/2004EP1442386A1 Mechanism for implementing network discovery in a cable network
08/04/2004EP1352523B1 Method for storing encrypted data
08/04/2004CN1518832A System and data format for providing seamless stream switching in digital video decoder
08/04/2004CN1518831A Pulling internet content onto interactive television using usage data
08/04/2004CN1518690A Electronic programe guide including virtual channels for interactive TV.
08/04/2004CN1518336A Electronic camera and information equipment and portable information device
08/03/2004US6772434 Device and method for the integrated presentation of a secondary service as a part of a primary service
08/03/2004US6772433 Interactive program guide for designating information on an interactive program guide display
08/03/2004US6772432 Interactive television program guide with selectable non-program options
08/03/2004US6772212 Audio/Visual server
08/03/2004US6771886 Method and apparatus to adaptively program a recording device
08/03/2004US6771885 Methods and apparatus for recording programs prior to or beyond a preset recording time period
08/03/2004US6771724 Method and apparatus for recording time information for digital data streams
08/03/2004CA2226588C Waveform generator for insertion of data into digital television signals
08/03/2004CA2190984C Apparatus and method for generating product coupons in response to televised offers
07/2004
07/29/2004WO2003032553B1 Method and apparatus for encrypting media programs for later purchase and viewing
07/29/2004US20040148626 Information processing apparatus
07/29/2004US20040148197 Adaptive display system
07/28/2004EP1441525A1 System for receiving broadcast digital data comprising a master digital terminal, and at least one slave digital terminal
07/28/2004EP1441450A1 Process for the relative locating of two electrical appliances
07/28/2004EP1440579A1 Selective decoding of enhance video stream
07/28/2004EP1440577A1 Packetizing devices for secure scalable data streaming
07/28/2004EP1440569A1 Program guide data selection device
07/28/2004EP1440528A2 System and method for displaying group viewing statistics during television viewing
07/28/2004EP0965087A4 Multicasting method and apparatus
07/28/2004CN1516972A Method and apparatus for determining broadcast schedule based on most recent client demand feedback
07/28/2004CN1516971A Method and apparatus for periodically delivering optimal batch broadcast schedule based on distributed client feedback
07/28/2004CN1516969A Information providing system, broadcast reception apparatus, and server apparatus
07/28/2004CN1516967A External memory for PVR
07/28/2004CN1516966A System and method for selecting relevant products to be transparently acquired for consumer
07/28/2004CN1516957A System and method for interactive television
07/28/2004CN1516939A Method and apparatus to send feedback from clients to server in content distribution broadcast system
07/28/2004CN1516474A Data transmission control system and data transmission control method
07/28/2004CN1516470A Digital signature for digital TV
07/28/2004CN1516466A Internet TV programme guide system
07/28/2004CN1516457A Multimedia optical disk, reproducing device and reproducing method
07/28/2004CN1516454A Data signal receiving device
07/28/2004CN1516449A Method for editing programme guide
07/28/2004CN1516443A TV programme making-up system and method
07/28/2004CN1516154A Method, device and system for controlling digital data use copy to medium
07/28/2004CN1516153A Method for controlling using digital data in medium, control device and control system
07/28/2004CN1516152A Method, device and system for controlling copy and reproducing digital data
07/28/2004CN1516151A Method, system and device for controlling copy from coding digital data to recording medium
07/28/2004CN1516150A Method and device for controlling copy from digital data to medium, and recording reproducing device
07/28/2004CN1516022A Technique for defining, using and controlling authority management data structure
07/28/2004CN1159925C 多媒体多路复用方法 Multimedia multiplexing method
07/27/2004US6769133 Termination circuitry for dual forward and reverse test points for amplifiers
07/27/2004US6769132 Signal splitter matrix for a cable modem termination system
07/27/2004US6769127 Method and system for delivering media services and application over networks
07/27/2004US6768863 Recording medium of stream data, and recording method and playback method of the same
07/27/2004US6768809 Digital watermark screening and detection strategies
07/22/2004WO2004062283A1 Digital television transmitter and receiver for transmitting and receiving dual stream using 4 level vestigial side band robust data
07/22/2004WO2003050661A3 Processing data
07/22/2004US20040143622 Information processing apparatus and communication control method for use in the apparatus
07/22/2004US20040141730 Image signal, decoding method, decoding apparatus, data storage medium, and computer program implementing a display cycle identifier
07/22/2004US20040141053 Network camera system
07/21/2004EP1439693A1 Television receiver and method for counting the number of accesses from the receiver
07/21/2004EP1439679A2 Multicarrier transmission with variable guard intervals
07/21/2004EP1439678A2 Multicarrier transmission with variable guard intervals
07/21/2004EP1439666A1 Information processing apparatus and communication control method for use in the apparatus
07/21/2004EP1439664A2 Method and apparatus for controlling devices in a home network
07/21/2004EP1438860A1 Adaptive overlay element placement in video
07/21/2004EP1438859A1 Transmission of video using variable rate modulation
07/21/2004EP1438858A1 Robust method for recovering a program time base in mpeg-2 transport streams and achieving audio/video synchronization
07/21/2004EP1438856A1 Program recommendation method and system utilizing a viewing history of commercials
07/21/2004EP1438855A2 Method for verifying television receiver sets with access control and corresponding receiver set
07/21/2004EP1438854A1 Smartcard uart for minimizing processor demands in a conditional access system
07/21/2004EP1438849A1 Searching for frames to perform a trick mode
07/21/2004EP1438840A1 Method and system for displaying multiple programs in the same time slot
07/21/2004EP1438836A1 Video and digital multimedia acquisition and delivery system and method
07/21/2004EP1438824A2 Digital content catering system
07/21/2004EP1287692B1 Pay by time system for content delivery to media playback systems
07/21/2004EP1272955A4 Integrated system for providing financial services including internet tv capabilities
07/21/2004EP1068727A4 Apparatus and method for web-casting over digital broadcast tv network
07/21/2004EP0882357B1 Copy protect recording and playback system
07/21/2004CN1515114A Method and apparatus for generating list of suggested scheduled television programs
07/21/2004CN1515113A Television program selection apparatus and method
07/21/2004CN1514648A Data receiving-processing apparatus and method, and broad casting method
07/21/2004CN1158872C Receiving apparatus, receiving method, and terminal unit
07/21/2004CN1158871C Conditional visiting information device
07/21/2004CN1158861C Broadcasting signal receiving method and apparatus
07/21/2004CN1158608C Multi media transmitting system using formatted data
07/20/2004US6766527 CATV system, CATV distributor, processing terminal, and receiver
07/20/2004US6766525 Method and apparatus for evaluating television program recommenders
07/20/2004US6766492 Finite state automaton for control of frame error recovery for a universal serial bus video camera
07/20/2004US6766374 System creating chat network based on a time of each chat access request