Low noise differential microphone arrays

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United States of America Patent

PATENT NO 9237391
APP PUB NO 20150163577A1
SERIAL NO

13816430

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Abstract

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A differential microphone array (DMA) is provided that includes a number (M) of microphone sensors for converting a sound to a number of electrical signals and a processor that is configured to apply linearly-constrained minimum variance filters on the electrical signals over a time window to calculate frequency responses of the electrical signals over a plurality of subbands and sum the frequency responses of the electrical signals for each subband to calculate an estimated frequency spectrum of the sound.

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Patent Owner(s)

Patent OwnerAddress
NORTHWESTERN POLYTECHNICAL UNIVERSITYXIAN SHAANXI 710072

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Benesty, Jacob Montreal, CA 23 407
Chen, Jingdong Shanxi, CN 50 623

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