Echo suppressing method and apparatus
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United States of America Patent
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Apr 30, 2013
Grant Date -
Jun 18, 2009
app pub date -
Oct 25, 2006
filing date -
Oct 26, 2005
priority date (Note) -
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Abstract
Converter 100 uses either the output signal of a sound pickup device or the signal obtained by subtracting the output signal of an echo canceller from the output signal of the sound pickup device as a first signal, uses an estimated crosstalk value indicative of an estimated value of the amount of crosstalk of an echo leaking into the first signal to correct the first signal, and limits the corrected first signal not to be smaller than estimated near-end noise.
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