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Browse by Category: Main > Communications
Class Information
Number: 370/494
Name: Multiplex communications > Communication techniques for information carried in plural channels > Combining or distributing information via frequency channels > Combined voice and data transmission > Data over voice
Description: Subject matter wherein data are transmitted on a carrier frequency higher than the voice frequency range.


Patents under this class:
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Patent Number Title Of Patent Date Issued
7619995 Transcoders and mixers for voice-over-IP conferencing Nov. 17, 2009
7602769 Audio packet switching system Oct. 13, 2009
7590072 Interworking network maps of network management and element management systems Sep. 15, 2009
7535894 System and method for a communication network May. 19, 2009
7529270 Communication information bandwidth control apparatus and method May. 5, 2009
7515927 Method of reverse link dynamic power control in a wireless communication system using per-flow quality feedback for multi-flow data traffic Apr. 7, 2009
7489674 Method for wireless local area network communication using multiple channels Feb. 10, 2009
7463731 Apparatus and method for dual mode phone Dec. 9, 2008
7411982 Digital wireless voice and data modem Aug. 12, 2008
7397791 Telephone communication system over a single telephone line Jul. 8, 2008
7283512 Intelligent network and method for providing voice telephony over ATM and point-to-multipoint connectivity Oct. 16, 2007
7266109 System and method for providing base band voice telephony using derived voice over data technology Sep. 4, 2007
7266111 Intelligent network and method for providing voice telephony over ATM Sep. 4, 2007
7133899 Method and apparatus for providing interactive text messages during a voice call Nov. 7, 2006
7133670 Roaming agreement application and database for carrying out roaming between private and public wireless networks Nov. 7, 2006
7126711 Voice/facsimile/modem call discrimination method for voice over packet networks Oct. 24, 2006
7117001 Simultaneous voice and data communication over a wireless network Oct. 3, 2006
7106723 Delay reduction method for telephony systems with multiple packet generators Sep. 12, 2006
7039399 Distribution of wireless telephony and data signals in a substantially closed environment May. 2, 2006
7010026 Enhanced line card and packetizing CPE for lifeline packet voice telephone Mar. 7, 2006
6925093 Communication apparatus, communication system and method for integrating speech and data Aug. 2, 2005
6904052 Operating system independent method and apparatus for transporting voice-over-IP information Jun. 7, 2005
6804225 System and method for establishing long distance voice communications using the internet Oct. 12, 2004
6782005 Communication system and communication method Aug. 24, 2004
6751315 High bandwidth phone line transceiver with capacitor isolation Jun. 15, 2004
6747995 System for multiple voice lines with data over a single subscriber loop Jun. 8, 2004
6747992 Communication system and communication method Jun. 8, 2004
6744786 Method and apparatus for using telephone house wiring for voice/data network Jun. 1, 2004
6707827 Method and apparatus for optimizing audio response in telephony-over-LAN systems Mar. 16, 2004
6707826 Method and apparatus for wireless bandwidth efficient multi-way calling Mar. 16, 2004
6704324 Apparatus and method for transmission of voice band signals over a DSL line Mar. 9, 2004
6665404 Method and device for power supply in telecommunication systems Dec. 16, 2003
6633589 Switching apparatus for use in telephone house wiring Oct. 14, 2003
6614786 Enhanced dual mode telephone for internet telephony Sep. 2, 2003
6611521 Data link layer extensions to a high latency wireless MAC protocol Aug. 26, 2003
6480487 Digital loop carrier remote terminal having integrated digital subscriber plug-in line cards for multiplexing of telephone and broadband signals Nov. 12, 2002
6459684 Multiplexed codec for an ADSL system Oct. 1, 2002
6407997 Asynchronous transfer mode system for providing telephony service Jun. 18, 2002
6351530 Modem having a digital high voltage isolation barrier Feb. 26, 2002
6324212 Apparatus using low spectrum selectively for providing both ADSL and POTS service Nov. 27, 2001
6320879 Communication system and method for interleaving or transmission of telephone rings and data Nov. 20, 2001
6314181 Bridged tap canceller Nov. 6, 2001
6298124 Method for transmitting data signals on analog subscriber lines Oct. 2, 2001
6285754 Odd-order low-pass pots device microfilter Sep. 4, 2001
6240178 Bridged tap terminator May. 29, 2001
6226529 System for providing a simultaneous data and voice channel within a single channel of a portable cellular telephone to provide position-enhanced cellular services (PECS) May. 1, 2001
6192109 Apparatus and method for improved DSL communication Feb. 20, 2001
6104726 Simultaneous transfer of voice and data information using multi-rate vocoder and bit control protocol Aug. 15, 2000
6069899 Home area network system and method May. 30, 2000
6061392 Apparatus and method for communicating voice and data between a customer premises and a central office May. 9, 2000

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