Condenser microphone

Details Condenser microphone Condenser microphone

2005-05-02

2008-11-04

Ni, Suhan (Department: 2615)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Housed microphone

C381S189000

Reexamination Certificate

active

07447326

ABSTRACT:
In a gooseneck condenser microphone, the generation of noise caused by strong electromagnetic waves sent from a cellular phone etc. is prevented by adding a simple element. In a gooseneck condenser microphone comprising a microphone capsule10which includes a condenser microphone unit and generates an audio signal via an impedance converter; a flexible support pipe20which supports the microphone capsule10on the upper end side thereof; and a microphone cord (a two-core shielded cable)30one end of which is connected to the impedance converter and the other end of which is pulled out of a base end portion21of the support pipe20after passing through the support pipe20and is connected to an output circuit section40, an upper end of the support pipe20being connected electrically to a shield covered line included in the microphone cord30on one end side of the microphone cord30, the base end portion21of the support pipe20is further connected electrically to a part of the shield covered line of the microphone cord30.

REFERENCES:
patent: 2579162 (1951-12-01), Veneklasen
patent: 3736632 (1973-06-01), Barrow
patent: 4880570 (1989-11-01), Sanborn et al.
patent: 5645445 (1997-07-01), Siemon et al.
patent: 2004/0005070 (2004-01-01), Kanda et al.

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