Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2005-04-13
2009-08-04
Pham, Chi H (Department: 2416)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C370S463000, C370S465000, C375S219000, C375S377000
Reexamination Certificate
active
07570599
ABSTRACT:
Methods, systems, and computer program products adaptively apply a target noise margin to a DSL loop to establish a DSL data rate on the DSL loop. A method involves receiving performance data associated with a quantity of errors detected over a period of time on the DSL loop and adjusting the target noise margin for the DSL loop based on the performance data. The target noise margin is inversely associated with the DSL data rate that can be established and is adjusted in order to maximize the DSL data rate while minimizing the quantity of errors detected over the period of time. Thus, embodiments of the present invention allow a maximum data rate that can be sustained on a DSL loop without an excessive quantity of errors.
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AT&T Intellectual Property I, LLP.
Faroul Farah
Hanley Flight & Zimmerman LLC
Pham Chi H
LandOfFree
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