Speaker

Details Speaker Speaker

2011-08-30

2011-08-30

Nguyen, Tuan (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S412000

Reexamination Certificate

active

08009855

ABSTRACT:
A degree of freedom in designing a circuit board to which a speaker is attached is enhanced. The speaker including: a frame with a yoke of a magnetic circuit portion embedded inside a central through hole; a diaphragm having a voice coil inserted in a magnetic circuit of the magnetic circuit portion; a cap having a sound dispersing hole that covers over the diaphragm and the frame; and a terminal electrically connected to the voice coil on a side opposite to the cap of the frame, wherein an insulating body is attached to an exposing portion of the yoke on the side opposite to the cap, a back pressure adjusting hole is provided in the exposing portion with respect to the diaphragm, and the terminals are provided to be retractable in the back pressure adjusting hole.

REFERENCES:
patent: 6072887 (2000-06-01), Wei
patent: 6154556 (2000-11-01), Takahashi et al.
patent: 2003/0059079 (2003-03-01), Asahina et al.
patent: 2003-134585 (2003-09-01), None
patent: 2005/260771 (2005-09-01), None
patent: 02/34005 (2002-04-01), None
patent: 2006/001228 (2006-01-01), None

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