Methods, apparatus and articles of manufacture to cancel echo for communication paths having long bulk delays
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United States of America Patent
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May 28, 2013
Grant Date -
Mar 24, 2011
app pub date -
Sep 18, 2009
filing date -
Sep 18, 2009
priority date (Note) -
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Abstract
Example methods, apparatus and articles of manufacture to cancel echo for communication paths having long bulk delays are disclosed. A disclosed example method includes determining a first location of a first largest magnitude of a first plurality of coefficients of an echo canceller, the first plurality of coefficients separated by two or more sample intervals, and cancelling an echo contained in a received signal using a second plurality of coefficients of the echo canceller and a first offset selected based on the first location, the second plurality of coefficients separated by one sample interval.
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