US Patent Application No: 2012/0002,709

Number of patents in Portfolio can not be more than 2000

SPLITTERLESS MULTICARRIER MODEM

ALSO PUBLISHED AS: 8400940

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A modem for use in Digital Subscriber Line communications transmits and receives data over the local subscriber loop in common with voice information over the loop, while avoiding the need for voice/data splitters. The modem responds to disruptions associated with “disturbance events” such as on-hook to off-hook transitions and the like by rapidly switching between pre-stored channel parameter control sets defining communications over the loop under varying conditions. In addition to changing parameter control sets responsive to a disturbance event, the modem may also change transmission power levels and other system parameters such as frequency domain equalizer characteristics. Further, provisions are made for reduced bandwidth communications under selected conditions.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
INTELLECTUAL VENTURES II LLCDENKENDORF521

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Greszczuk, John A Stow, MA 30 379
Gross, Richard W Chesterfield, MO 73 592
Krinsky, David M Acton, MA 30 291
Tzannes, Marcos Natick, MA 39 626
Tzannes, Michael A Lexington, MA 77 744

Cited Art Landscape

Patent Info (Count) # Cites Year
 
TEXAS INSTRUMENTS INCORPORATED (2)
* 6,389,062 Adaptive frequency domain equalizer circuits, systems, and methods for discrete multitone based digital subscriber line modem 68 1998
* 2004/0071,101 Modem host interface in a digital subscriber line telecommunication system 7 2001
 
AT&T CORP. (1)
* 6,134,274 Method and apparatus for allocating data for transmission via discrete multiple tones 36 1997
 
MOTOROLA, INC. (1)
* 4,831,624 Error detection method for sub-band coding 40 1988
 
SCIENTIFIC-ATLANTA, INC. (1)
* 5,790,523 Testing facility for a broadband communications system 117 1996
 
SUMMIT TECHNOLOGY SYSTEMS, LP (1)
* 6,026,120 System and method for using circular constellations with uncoded modulation 23 1997
* Cited By Examiner

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