Microphone

Details Microphone Microphone

2005-12-13

2005-12-13

Le, Huyen (Department: 2646)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Microphone capsule only

C381S355000, C381S369000

Reexamination Certificate

active

06975736

ABSTRACT:
A microphone includes a diaphragm for receiving a sound pressure, a back plate disposed parallel to the diaphragm, a support for holding the diaphragm and the back plate with a fixed gap in between, and a mechanoelectric transducer coupled to the back plate. These items are housed in a case, and a hole is provided on the side of the case that is not directly opposite the diaphragm. By making the volume of the confined space small by using the diaphragm as the boundary surface, mechanical resistance can be increased, and sensitivity to an excessive sound pressure can be reduced thus enabling suppression of generation of distortion.

REFERENCES:
patent: 4281222 (1981-07-01), Nakagawa et al.
patent: 61-025399 (1986-02-01), None
patent: 06-292288 (1994-10-01), None
patent: 09-168198 (1997-06-01), None
patent: 2002-135880 (2002-05-01), None
International Search Report for application No. PCT/JP03/08271 dated Sep. 30, 2003.

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