METHODS AND APPARATUS TO DETECT AN IMBALANCED SUBSCRIBER LINE IN A DIGITAL SUBSCRIBER LINE (DSL) SYSTEM
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United States of America Patent
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Issued Date -
Sep 10, 2009
app pub date -
Mar 4, 2008
filing date -
Mar 4, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Methods and apparatus to detect an imbalanced subscriber line in a digital subscriber line (DSL) system are disclosed. An example method comprises identifying a contiguous set of performance parameters in a plurality of performance parameters for respective ones of a plurality of DSL sub-carriers of a subscriber line associated with a DSL modem, the identified set have values representative of degraded performance and corresponding to an operating frequency of a geographically proximate AM interference source. The example method further comprises comparing a number of DSL sub-carriers contained in the identified set with a threshold to determine whether the subscriber line has an imbalanced condition.
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