Microphone

Details Microphone Microphone

2006-07-25

2011-10-04

Le, Huyen D (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Housed microphone

C381S113000, C381S355000

Reexamination Certificate

active

08031899

ABSTRACT:
A microphone in which a core of an output transformer can be grounded without soldering and degradation of magnetic properties of the core can be prevented by preventing mechanical damage to the output transformer even if an impact force of the microphone is applied is obtained. A grounding pattern is formed in an output transformer mounting location of a circuit board incorporated in the microphone, a conductive fabric is put on the grounding pattern, a core of the output transformer is stacked and arranged on the conductive fabric, and the core of the output transformer is grounded through the conductive fabric. A second conductive fabric that covers the output transformer and is in contact with an inner circumferential surface of a microphone case may be provided and the microphone case may be grounded by bringing the second conductive fabric into contact with the core of the output transformer.

REFERENCES:
patent: 7558397 (2009-07-01), Akino
patent: 2005/0259835 (2005-11-01), Akino
patent: 2006/0133626 (2006-06-01), Akino
patent: 59-192885 (1984-12-01), None
patent: 2-45195 (1990-02-01), None
patent: 8-130387 (1996-05-01), None
patent: 2002-216464 (2002-08-01), None
patent: 2005-86231 (2005-03-01), None
patent: 2005-94575 (2005-04-01), None

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