Electret condenser microphone

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element

Reexamination Certificate

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Details

C381S174000

Reexamination Certificate

active

10379007

ABSTRACT:
A condenser microphone having a housing, a diaphragm assembly and backplate located within the housing. A spacer isolates the diaphragm assembly from the housing and spaces the diaphragm assembly from the backplate. The spacer has a first portion disposed between the backplate and the diaphragm assembly, and a second portion disposed between the diaphragm assembly and the wall of the housing. A conductive member electrically connects the backplate to a ground.

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International Search Report for Application No. PCT/US03/33894 dated Mar. 3, 2004.

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