Boundary microphone

Details Boundary microphone Boundary microphone

2008-10-15

2011-10-25

Tran, Long (Department: 2829)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Housed microphone

C381S094100, C381S177000, C381S356000, C381S357000, C381S358000, C381S359000, C381S360000, C381S369000

Reexamination Certificate

active

08045741

ABSTRACT:
A boundary microphone, comprising: a base made of a metal; a cover made of a metal having a plurality of holes for introducing sound waves; and internal components including a microphone unit that is disposed in an internal space enclosed by the base and the cover; a first metallic part disposed on one side of the upper and lower sides of the internal components; and a second metallic part, which is disposed on other side of the upper and lower sides of the internal components and which encloses the internal components along with the first metallic part from all directions, are provided, wherein the base, the cover, the first metallic part, and the second metallic part are alternately overlapped at their peripheral portions, and wherein at least one of the first metallic part and the second metallic part is made of a metallic mesh.

REFERENCES:
patent: 7471802 (2008-12-01), Akino et al.
patent: 7602931 (2009-10-01), Akino et al.
patent: 2005/0259842 (2005-11-01), Akino et al.
patent: 2006/0078149 (2006-04-01), Akino et al.
patent: 2008/0025532 (2008-01-01), Yonehara et al.
patent: 2008/0159578 (2008-07-01), Akino et al.
patent: 2005-333180 (2005-12-01), None
patent: 2006-148325 (2006-06-01), None
patent: 2008-167175 (2008-07-01), None
patent: 2008-187581 (2008-08-01), None

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