Noise identification in a communication system
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United States of America Patent
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Dec 19, 2006
Grant Date -
Sep 25, 2003
app pub date -
Oct 18, 2002
filing date -
Feb 28, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A method is provided to automatically identify noise events in a channel of a communication system comprising the steps of: receiving an input signal from the channel; determining the mean energy of the input signal; determining the recent energy of the input signal; identifying a beginning of the noise event when the recent energy is greater than the product of the mean energy and a predefined first threshold; identifying an end of a noise event when the recent energy is less that the product of the mean energy and a predefined second threshold; and providing for output the beginning of the noise event and the end of the noise event. Other systems and methods are disclosed.
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