| Patents for H04N 21 - Selective content distribution, e.g. interactive television, vod [video on demand] (56,445) |
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| 03/04/2009 | CN100466691C Image sensing apparatus and the control method thereof |
| 03/04/2009 | CN100466685C Information equipment and portable information device |
| 03/04/2009 | CN100466679C Image sensor |
| 03/04/2009 | CN100466673C Method for realizing official telephone of SDH device using IP telephone |
| 03/04/2009 | CN100466667C A method for implementing calling and called party pay intelligent service |
| 03/04/2009 | CN100466662C Process, apparatus, devices for seizure of a shared telephone line |
| 03/04/2009 | CN100466655C Method and system for requesting to read user registration state |
| 03/04/2009 | CN100466651C Methods and systems for application instance level workload distribution affinities |
| 03/04/2009 | CN100466647C Method and system for transferring ip packets by aggregating multiple wireless communication channels for high data rate transfers |
| 03/04/2009 | CN100466643C Digital implementation of multi-channel demodulators |
| 03/04/2009 | CN100466639C Method for realizing two-directional interacting of circuit zone and grouping zone, and system thereof |
| 03/04/2009 | CN100466635C Method and apparatus for transmitting message |
| 03/04/2009 | CN100466631C Blank-interface text transmission method, network accessing apparatus and system |
| 03/04/2009 | CN100466627C Method and device for searching address prefixion and message transfer method and system |
| 03/04/2009 | CN100466623C Route information update method and network equipment based on OSPF |
| 03/04/2009 | CN100466620C Loading balance method based on data flow in large scale paralle processing of mass data |
| 03/04/2009 | CN100466616C Method for controlling reverse congestion of ABIS interface and transceiver base station |
| 03/04/2009 | CN100466613C Method for processing service |
| 03/04/2009 | CN100466610C Method for identifying net load type in multi-protocol sign exchange network |
| 03/04/2009 | CN100466607C Method for improving the service quality in intercommunicate wireless local area network |
| 03/04/2009 | CN100466604C Method and system for facilitating data transfer in a pageable mode virtual environment |
| 03/04/2009 | CN100466601C Data read/write device and method |
| 03/04/2009 | CN100466598C Method for realizing data message transmission based on RTP |
| 03/04/2009 | CN100466595C Method for processing error indication message |
| 03/04/2009 | CN100466592C Method and method for transmitting data from a first data network into a second data network |
| 03/04/2009 | CN100466589C Method for realizing virtual special net access |
| 03/04/2009 | CN100466586C Transmitter device and relay device for performing data transmission control |
| 03/04/2009 | CN100466583C Fast ring network method against attack based on RRPP, apparatus and system |
| 03/04/2009 | CN100466580C Initial method and device of bus system |
| 03/04/2009 | CN100466577C Method and system for enquiring data of sensor network and sensor node |
| 03/04/2009 | CN100466574C Mobile communications terminal for transmitting data frames in wireless lan and method thereof |
| 03/04/2009 | CN100466571C Handling broadcast and multicast traffic as unicast traffic in a wireless network |
| 03/04/2009 | CN100466568C Household network system, the address setting method and associated electrical appliance equipment |
| 03/04/2009 | CN100466565C Loopback control method and device |
| 03/04/2009 | CN100466562C Method and system for transmitting test route |
| 03/04/2009 | CN100466559C Method for judging spring grouping ring topology stability |
| 03/04/2009 | CN100466557C Communication net node fault monitoring method |
| 03/04/2009 | CN100466554C Communication adaptation layer system and method for obtaining the network element information |
| 03/04/2009 | CN100466552C NGN system and end to end tracing method and device applied in this system |
| 03/04/2009 | CN100466550C Method, device and system for implementing multi-service type structure |
| 03/04/2009 | CN100466548C Searching method and its system for equipment traffic data |
| 03/04/2009 | CN100466546C System and method for realizing business protection using LCAS protocol |
| 03/04/2009 | CN100466544C Method for reporting board performance data of equipment |
| 03/04/2009 | CN100466542C Service gradation based loss distribution method |
| 03/04/2009 | CN100466540C State detection method based on main and backup Ethernet interface |
| 03/04/2009 | CN100466538C Method and apparatus for changing the operation mode of an agent of a management network |
| 03/04/2009 | CN100466536C System and method for managing protocol network failures in a cluster system |
| 03/04/2009 | CN100466534C Method for processing faults in multimedia sub-system equipment |
| 03/04/2009 | CN100466532C Set-up method and its system for broadcast multi-cast service transmission mode |
| 03/04/2009 | CN100466530C Method and device for connecting a plurality of conferences |
| 03/04/2009 | CN100466528C Interconnected network web information issuing method |
| 03/04/2009 | CN100466525C Buffer-based magnitude charging middle message processing method |
| 03/04/2009 | CN100466522C Farend access communication system, and control method |
| 03/04/2009 | CN100466519C Method for downloading a plurality of files simultaneously in broadcasting network |
| 03/04/2009 | CN100466516C Biological identifying method for resisting replay attach |
| 03/04/2009 | CN100466513C System and method for protecting received and sent data by parity check bit |
| 03/04/2009 | CN100466510C A method for preventing network address translation (NAT) device from being attacked by network user |
| 03/04/2009 | CN100466507C Method and device for connecting sensors or actuators to a bus system |
| 03/04/2009 | CN100466504C Read enable generator, read enable signal generating method and data transmission method |
| 03/04/2009 | CN100466501C Method for producing long code mask for cluster service |
| 03/04/2009 | CN100466498C Method and equipment for reaching synchronization to base station |
| 03/03/2009 | US7500258 Advertisement subgroups for digital streams |
| 03/03/2009 | US7500202 Remote control for navigating through content in an organized and categorized fashion |
| 03/03/2009 | US7500159 Data transmission apparatus and method |
| 03/03/2009 | US7500007 Method and apparatus for identifying media content presented on a media playing device |
| 03/03/2009 | US7499993 Media contents monitoring apparatus and method thereof |
| 03/03/2009 | US7499918 Information processing apparatus and method, program, and recording medium |
| 03/03/2009 | US7499078 Method of and apparatus for generating a precise frame rate in digital video transmission from a computer system to a digital video device |
| 03/03/2009 | US7499077 Summarization of football video content |
| 02/26/2009 | US20090055213 Contents billing system, contents acquiring apparatus, contents acquiring method and program therefor and contents providing apparatus, contents providing method and program therefor |
| 02/25/2009 | EP2028862A2 MPEG table structure |
| 02/25/2009 | EP2028861A2 Method and apparatus for changing received streaming content channels |
| 02/25/2009 | EP2028859A1 System for interactive television |
| 02/25/2009 | EP2028856A2 Systems and Methods for Interactive Program Guides with Personal Video Recording features |
| 02/25/2009 | EP2028853A2 Video signal repeating device with display resolution information management |
| 02/25/2009 | EP2028852A2 Method of generating channel table according to user preferences in relation to broadcasting stations |
| 02/25/2009 | EP2028617A2 Apparatus and method for watermarking a digital image |
| 02/25/2009 | EP2027698A1 Method and device for wireless transmission of internet protocol tv |
| 02/25/2009 | EP1464169A4 Controlling buffer capacity for personal video recorder while displaying available disk space |
| 02/25/2009 | EP1166554B1 System and method for information filtering |
| 02/25/2009 | CN101374057A Contents billing system, contents acquiring apparatus, contents acquiring method and program therefor and contents providing apparatus, contents providing method and program therefor |
| 02/25/2009 | CN100464532C Method and system for multimedia communications |
| 02/24/2009 | US7496947 Cache device and method for generating a virtual radio or television broadcast |
| 02/24/2009 | US7496946 System for collating data from multiple sources to form a composite program guide for display |
| 02/24/2009 | US7496945 Interactive program guide for bidirectional services |
| 02/24/2009 | US7496807 Data transmission apparatus and method |
| 02/24/2009 | US7496328 Method of using a telephone device having enhanced audio-visual features for interacting with nearby displays and display screens |
| 02/24/2009 | US7496275 System and method for providing recording function when no program information is available |
| 02/24/2009 | US7496146 Communication system |
| 02/24/2009 | US7496098 Method of generating timestamps for isochronous data |
| 02/24/2009 | US7496092 System and method for allocating packet identifiers in a transport stream in a subscriber network |
| 02/24/2009 | CA2201916C Home digital audiovisual information recording and playback apparatus |
| 02/19/2009 | US20090049489 Control apparatus, content transmission system and content transmission method |
| 02/19/2009 | US20090049302 System And Method For Processing Conent For Later Insertion Of Digital Watermark And Other Data |
| 02/19/2009 | US20090048978 Systems and methods for secure transaction management and electronic rights protection |
| 02/18/2009 | EP2026579A1 Communication system and method thereof |
| 02/18/2009 | EP2026277A1 Optimized data transmission system and method |
| 02/18/2009 | EP1397918B1 Splicing of digital video transport streams |
| 02/18/2009 | EP1388035A4 Contextual web page system and method |
| 02/18/2009 | EP1163749A4 Method and apparatus for remote update of clients by a server via broadcast satellite |