Frequency domain signal processor for close talking differential microphone array
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United States of America Patent
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-
Apr 5, 2016
Grant Date -
May 16, 2013
app pub date -
Jan 4, 2013
filing date -
Mar 9, 2007
priority date (Note) -
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Abstract
A system and method for processing close talking differential microphone array (CTDMA) signals in which incoming microphone signals are transformed from time domain signals to frequency domain signals having separable magnitude and phase information. Processing of the frequency domain signals is performed using the magnitude information, following which phase information is reintroduced using phase information of one of the original frequency domain signals. As a result, high pass filtering effects of conventional differential signal processing of CTDMA signals are substantially avoided.
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International Classification(s)
- 2013 Application Filing Year
- H04M Class
- 4233 Applications Filed
- 3996 Patents Issued To-Date
- 94.41 % Issued To-Date
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- 9 Age
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