APPARATUS AND METHOD FOR NOISE CANCELLATION IN VOICE COMMUNICATION
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United States of America Patent
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Issued Date -
Nov 25, 2010
app pub date -
May 25, 2009
filing date -
May 25, 2009
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Abandoned
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Abstract
The present invention provides an apparatus and method for noise cancellation of voice communication. The apparatus includes a main body, loudspeaker, in-ear microphone, speaking microphone and adaptive control system. The method includes an external noise microphone arranged externally onto the main and used to acquire the noise outside of the ear drum, which is taken as the reference noise signal of adaptive control system. The in-ear anti-noise is estimated, so that the noise disturbance can be reduced when the receiving end receives remote voices. After noises and near-end voices are separated from near-end voices subjecting to noise disturbance, so that the accuracy of estimating anti-noise and the applicability of active noise cancellation is increased.
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