| Patents for H04H 20 - Arrangements for broadcast or for distribution combined with broadcast (21,050) |
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| 03/26/2009 | US20090081944 Techniques for distributing content to multiple devices in a communication network |
| 03/26/2009 | US20090080554 Tone allocation in multipoint-to-point communication using orthogonal frequency division multiplexing |
| 03/26/2009 | US20090080553 Synchronization techniques in multipoint-to-point communication using orthogonal frequency division multiplexing |
| 03/26/2009 | US20090080552 System for multiple use subchannels |
| 03/26/2009 | US20090080505 Ranging and round trip delay timing adjustment in a multi-point to point bidirectional communication system |
| 03/26/2009 | US20090080365 Generating multicast flow identifiers |
| 03/26/2009 | US20090080364 Supporting a multicast session within a wireless communications network |
| 03/26/2009 | US20090080363 Mobility management within a wireless communications network |
| 03/26/2009 | US20090080362 Regulating broadcast overhead messages within a wireless communications network |
| 03/26/2009 | US20090080361 De-registering a multicast group member from a multicast group within a wireless communications network |
| 03/26/2009 | US20090080360 Reducing an occurrence of false grants for a multicast session within a wireless communications network |
| 03/26/2009 | US20090080359 Tracking locations of multicast group members within a wireless communication system |
| 03/26/2009 | US20090080358 Terminating a multicast session within a wireless communications network |
| 03/26/2009 | US20090080357 Multicast messaging within a wireless communication system |
| 03/26/2009 | US20090080356 Managing acknowledgment transmissions from multicast group members of a multicast group within a wireless communications network |
| 03/26/2009 | US20090080355 Responding to an intractive multicast message within a wireless communication system |
| 03/26/2009 | US20090080354 Multimedia Broadcast Multicast Service Providing System and Method Thereof |
| 03/26/2009 | US20090080353 Method and apparatus for transmitting multiple multicast communications over a wireless communication network |
| 03/26/2009 | US20090080352 Packet relay method and home agent |
| 03/26/2009 | US20090080351 Method of controlling data transmission for multimedia and broadcasting services in a broadband wireless access system |
| 03/26/2009 | US20090079660 Distributed antenna system using overhead power lines |
| 03/26/2009 | US20090079199 Electric generator operated by reciprocating wellbore pump and monitoring system used therewith |
| 03/26/2009 | DE102008041141A1 Radio mit automatischer Abstimmung auf ein moduliertes Audiogerät Radio with automatic tuning to a modulated audio device |
| 03/26/2009 | CA2789783A1 Method and apparatus to enable fast channel switching with limited dvb receiver memory |
| 03/26/2009 | CA2704727A1 Broadcast information transmission method, radio base station and mobile station |
| 03/26/2009 | CA2699593A1 Systems and methods for media packaging |
| 03/26/2009 | CA2696624A1 Method and apparatus to enable fast channel switching with limited dvb receiver memory |
| 03/26/2009 | CA2689574A1 Mega-frame initialization packet generation and synchronous re-generation with bit rate adaptation for single frequency networks with multiple modulation schemes |
| 03/25/2009 | EP2040436A1 Access network handover for a mobile television system |
| 03/25/2009 | EP2039154A2 System and method for inserting media based on keyword search |
| 03/25/2009 | EP2039068A1 Method and apparatus for providing internet protocol datacasting (ipdc) service, and method and apparatus for processing ipdc service |
| 03/25/2009 | CN101394235A Path sharing method and apparatus for vehicle-mounted information service system |
| 03/25/2009 | CN100473144C Processes for exploiting electronic tokens to increase broadcasting revenue |
| 03/24/2009 | US7509430 Networked video delivery system for displaying data content and video content referenced by the data content |
| 03/24/2009 | US7509181 System and method for request, delivery and use of multimedia files for audiovisual entertainment |
| 03/24/2009 | US7509180 Extending digital rights management and authentication to audio speakers |
| 03/24/2009 | US7509115 Ensuring EAS performance in audio signal encoding |
| 03/24/2009 | US7508789 Information distribution and processing system |
| 03/19/2009 | WO2009033254A1 Multimedia broadcast multicast service channel mapping and multiplexing |
| 03/19/2009 | WO2008152407A3 Broadcast receiver |
| 03/19/2009 | US20090077604 Connected Video and Audio |
| 03/19/2009 | US20090077593 Interactive Reward Associated With A Broadcast |
| 03/19/2009 | US20090077588 Device for sending-out data in which associated data is multiplexed with main data |
| 03/19/2009 | US20090076801 Method and Apparatus for Introducing Information into a Data Stream and Method and Apparatus for Encoding an Audio Signal |
| 03/19/2009 | US20090075584 Mobile broadcasting system and method for transmitting and receiving broadcast service therefor |
| 03/19/2009 | US20090075583 Contents distribution system, and contents distribution method |
| 03/19/2009 | US20090074213 Apparatus and method for down converting multichannel programs to dual channel programs using a smart coefficient generator |
| 03/19/2009 | US20090074095 System for multi-frame alignment |
| 03/19/2009 | US20090074087 System for follow-up synchronization to maintain synchronization throughout transmission |
| 03/19/2009 | US20090073949 Filtered Antenna Assembly |
| 03/19/2009 | US20090073912 Method and system for digital communication through infrastructure network with receiving stations according to their geographical status |
| 03/19/2009 | US20090073910 Radio multi-hop network, node, multicast route control method, and program thereof |
| 03/19/2009 | US20090073908 Indication of Multicast Control Information |
| 03/19/2009 | CA2699082A1 Multimedia broadcast multicast service channel mapping and multiplexing |
| 03/18/2009 | EP2036344A2 Method and apparatus for creating and viewing customized multimedia segments |
| 03/18/2009 | EP2036343A2 In-band data recognition and synchronization system |
| 03/18/2009 | EP2036231A1 Broadcast channel identification |
| 03/18/2009 | EP2036230A2 Information broadcasting system and method |
| 03/18/2009 | CN201210386Y Wireless transmission video advertisement machine |
| 03/18/2009 | CN101390313A Method and apparatus for supporting mobility in dvb-h cbms system |
| 03/18/2009 | CN101388735A Digital broadcasting wave receiving device |
| 03/18/2009 | CN101388675A Method of providing broadcast service and broadcasting receiver therefor |
| 03/18/2009 | CN101388166A Electronic guide apparatus and electronic guide implementing method |
| 03/18/2009 | CN101388165A Embedded intelligent wireless multimedia electronic guiding system |
| 03/18/2009 | CN100471281C Method of providing broadcast service and broadcasting receiver therefor |
| 03/18/2009 | CN100471234C Video play system and method |
| 03/18/2009 | CA2638185A1 Broadcast content distribution system, and distribution apparatus and broadcast reception terminal device for use in the system |
| 03/17/2009 | US7506355 Tracking end-user content viewing and navigation |
| 03/17/2009 | US7506351 Receiving apparatus, program notifying method, recording medium, and program with determination of whether or not it is suitable for user to view program in real time |
| 03/17/2009 | US7505922 Method and apparatus for utilizing a unique transaction code to update a magazine subscription over the internet |
| 03/17/2009 | US7505733 Broadcast signal receiver |
| 03/17/2009 | US7505732 Broadcasting user-specific information |
| 03/17/2009 | US7505731 System and method for delivery of content by a network based upon a predefined condition |
| 03/17/2009 | US7505605 Portable devices and methods employing digital watermarking |
| 03/17/2009 | US7505594 Discontinuous transmission (DTX) controller system and method |
| 03/17/2009 | US7505430 Alternative frequency strategy for DRM |
| 03/17/2009 | US7505426 Multi-channel mesh network |
| 03/12/2009 | WO2009032257A1 Digital radio broadcast receiver, broadcasting methods and methods for tagging content of interest |
| 03/12/2009 | US20090070104 Acoustic communication system |
| 03/12/2009 | US20090067516 Ranging and round trip delay timing adjustment in a multi-point to point bidirectional communication system |
| 03/12/2009 | US20090067360 Method and apparatus for allocating multicast connection identifier used for ip multicast packet transmission over portable internet network and transmitting packet using the multicast connection identifier |
| 03/12/2009 | US20090067359 Method and mobile communication network for providing multicast and/or broadcasting services |
| 03/12/2009 | US20090067358 Method and System for Multicast Retry in a Communication Network |
| 03/12/2009 | US20090067319 Systems and method for orthogonal frequency divisional multiplexing |
| 03/12/2009 | CA2698336A1 Digital radio broadcast receiver, broadcasting methods and methods for tagging content of interest |
| 03/11/2009 | EP2034732A1 Digital broadcasting receiver |
| 03/11/2009 | EP2034639A1 Automatic TV/audio channel switching upon reception of information from special control channels |
| 03/11/2009 | EP2033346A1 Method, transmitter and receiver for transmitting text information |
| 03/11/2009 | CN201207641Y Automatically channel selecting frequency modulating transmitting system and wireless transmission system |
| 03/11/2009 | CN101383800A Digital multimedia receiver and digital multimedia receiving method thereof |
| 03/11/2009 | CN101383714A Urgent broadcast transmission method and apparatus |
| 03/11/2009 | CN101383669A Duplicate playing data transmitting and receiving apparatus and method using pulse signal |
| 03/11/2009 | CN101383668A Terminal, chip and method for receiving urgent broadcast message |
| 03/10/2009 | US7502926 802.1X protocol-based multicasting control method |
| 03/10/2009 | US7502604 Wireless environment method and apparatus |
| 03/10/2009 | US7502587 Method and device for band translation |
| 03/10/2009 | US7502513 Commercial detector with a start of active video detector |
| 03/10/2009 | US7502386 Communication apparatus and communication method |
| 03/10/2009 | US7502355 Adaptive multiplexing device for multi-carrier wireless telecommunication systems |
| 03/05/2009 | WO2009029188A2 System for audio broadcast channel remapping and rebranding using content insertion |