System for managing feedback
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United States of America Patent
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Oct 25, 2011
Grant Date -
May 6, 2010
app pub date -
Oct 31, 2008
filing date -
Oct 31, 2008
priority date (Note) -
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Abstract
Feedback detection, adaptive notch filtering, and gain adjustment are combined for managing feedback. Feedback detection includes detection of short term and long term spectral peaks and assessing their magnitude, shape, rate of growth, and power concentration ratio. A plurality of notch filters are available and are allocated according to the spectral magnitude of the feedback detected. Wide band gain adjustment supplements the notch filters.
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