Microphone

Details Microphone Microphone

2011-03-08

2011-03-08

Ensey, Brian (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Microphone capsule only

C381S113000, C381S355000, C381S170000, C381S356000

Reexamination Certificate

active

07903829

ABSTRACT:
A microphone having: a first bidirectional microphone unit formed by connecting two unidirectional microphone units, each of which has a vibrating section on a front side thereof, back to back; and a second bidirectional microphone unit formed by connecting two unidirectional microphone units, each of which has a vibrating section on a front side thereof, back to back, and a directional axis of the second bidirectional microphone unit is arranged to be shifted by 90 degrees with respect to a directional axis of the first bidirectional microphone unit.

REFERENCES:
patent: 4329547 (1982-05-01), Imai
patent: 2004/0105557 (2004-06-01), Matsuo
patent: 55-120300 (1980-09-01), None
patent: 57-010597 (1982-01-01), None
patent: 58-073692 (1983-05-01), None
patent: 60-022897 (1985-02-01), None
patent: 04-109798 (1992-04-01), None
patent: 04-158000 (1992-05-01), None
patent: 2000-197180 (2000-07-01), None
Japanese Office Action dated Dec. 18, 2007 for Japanese Application No. 2005-124767.
Japanese Office Action issued Jul. 14, 2009 for corresponding Japanese Application No. 2005-124767.

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