Patent ID: 11950054
Assignee: AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. The MEMS condenser microphone as described in claim 3, wherein the electrostatic clutch comprises an eighth connecting part, a fourth suspension beam and a fourth suspension plate,
wherein the eighth connecting part comprises an end connected to the connecting rod, and another end connected to arrays of high impedance nodes electrodes,
wherein two sides of the fourth suspension plate are suspended and supported in the vacuum cavity through the fourth suspension beam, arrays of biased electrodes are arranged at the fourth suspension plate at intervals, and fifth gaps and a sixth gap are respectively formed at the fourth suspension plate at two opposite sides of the array of biased electrodes,
wherein the arrays of high impedance nodes electrodes are in one-to-one correspondence with the fifth gaps, and extend into the fifth gaps, respectively,
wherein the fifth gaps are evenly distributed at two opposite sides of the sixth gap, and
wherein the sixth gap is provided therein with a light reflector, and the base plate is provided with a light emitter and a light detector.