Mems microphone

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12267636
APP PUB NO 20230345157A1
SERIAL NO

17994026

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention provides a MEMS microphone, including a housing body with a containment space, a sound hole penetrating the housing body, a MEMS microphone chip, an ASIC chip and a subtractor accommodated in the containment space. The MEMS microphone chip includes at least a first MEMS microphone chip and a second MEMS microphone chip. the first MEMS microphone chip is different from the frequency response droop characteristic of the second MEMS microphone chip. the first MEMS microphone chip and the output signal of the second MEMS microphone chip are output to the subtractor, and are output to the ASIC chip after the subtractor performs subtraction processing. Compared with the related art, the MEMS microphone of the present invention has good anti-interference performance and good sensitivity.

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Patent Owner(s)

  • AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Yangmeng Singapore, SG 2 0
Chua, Tiongkee Singapore, SG 3 0
Pu, Jingxin Shenzhen, CN 2 0
Tan, Siewseong Singapore, SG 3 0
Zhang, Rui Shenzhen, CN 806 5113

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