Condenser microphone

Details Condenser microphone Condenser microphone

2007-04-10

2011-12-27

Tsang, Fan (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Housed microphone

C381S174000, C381S355000, C381S362000, C381S094100

Reexamination Certificate

active

08085965

ABSTRACT:
A condenser microphone provided with a battery compartment having a coil spring electrode is adapted to: extend a return stroke of the coil spring electrode; prevent high frequency current from penetrating into the microphone from the coil spring electrode to suppress the occurrence of noise; and prevent the coil spring electrode from generating mechanical noise. The condenser microphone includes: a body case into which a condenser microphone unit is incorporated; a battery compartment provided in the body case; a coil spring electrode that is provided at an end of the battery compartment, and pushed and compressed by an electrode of a battery by the battery being inserted therein; and a conductive cushion that is disposed within the coil spring electrode, and can contact with the coil spring electrode while being compressed together with the coil spring electrode at least when the coil spring electrode is compressed.

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patent: 4819141 (1989-04-01), Maglica et al.
patent: 6463159 (2002-10-01), Ming-Cheng
patent: 6904155 (2005-06-01), Yonehara et al.
patent: 2006/0093177 (2006-05-01), Kobayashi
patent: 58-130362 (1983-08-01), None
patent: 2003-178735 (2003-06-01), None

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