Invention Grant
US09344809B2 Digital acoustic low frequency response control for MEMS microphones
有权
用于MEMS麦克风的数字声学低频响应控制
- Patent Title: Digital acoustic low frequency response control for MEMS microphones
- Patent Title (中): 用于MEMS麦克风的数字声学低频响应控制
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Application No.: US14211583Application Date: 2014-03-14
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Publication No.: US09344809B2Publication Date: 2016-05-17
- Inventor: John Matthew Muza , Philip Sean Stetson , Michael James Daley , Davin Luther Yuknis , Joseph R. Fitzgerald
- Applicant: Robert Bosch GmbH
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Michael Best & Friedrich LLP
- Main IPC: H04R23/00
- IPC: H04R23/00 ; H04R19/00

Abstract:
A system and method for controlling and adjusting a low-frequency response of a MEMS microphone. The system comprising the MEMS microphone, a controller, and a memory. The MEMS microphone includes a membrane and a plurality of air vents. The membrane configured such that acoustic pressures acting on the membrane cause movement of the membrane. The plurality of air vents are positioned proximate to the membrane. Each air vent of the plurality of air vents are configured to be selectively positioned in an open position or a closed position. The controller determines an integer number of air vents to be placed in the closed positioned, and generate a signal that causes the integer number of air vents to be placed in the closed position and causes any remaining air vents to be placed in the open position.
Public/Granted literature
- US20140270273A1 DIGITAL ACOUSTIC LOW FREQUENCY RESPONSE CONTROL FOR MEMS MICROPHONES Public/Granted day:2014-09-18
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