ELECTRICAL APPARATUS, AUDIO-RECEIVING CIRCUIT AND METHOD FOR FILTERING NOISE
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United States of America Patent
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Issued Date -
Jul 1, 2010
app pub date -
Jun 9, 2009
filing date -
Dec 30, 2008
priority date (Note) -
Abandoned
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Abstract
An electronic apparatus at least including an audio-receiving circuit is provided. The audio-receiving circuit includes an audio receiver and a processor. The audio receiver receives a sound wave from a sound source, and generates a first audio signal containing a plurality of noises to the processor. The processor performs a signal processing of time reversal to the first audio signal to restore a sound sent at an original sound source, so as to filter noises in the first audio signal and output a second audio signal.
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