Loudspeaker

Details Loudspeaker Loudspeaker

2006-09-12

2006-09-12

Ni, Suhan (Department: 2615)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S400000, C381S412000

Reexamination Certificate

active

07106879

ABSTRACT:
In a loudspeaker, even if an interval between a diaphragm and a yoke is small, a lead wire, an end of the coil wire of a voice coil, moves upward and downward in and/or over a cutout portion formed in the yoke, and does not collide with the yoke. The loudspeaker does not have disadvantages, such as noises and disconnection of the end of the coil wire, and can be thin.

REFERENCES:
patent: 2216961 (1940-10-01), Sanial
patent: 2532413 (1950-12-01), Levy
patent: 3358089 (1967-12-01), Parker
patent: 5524151 (1996-06-01), Bleim
patent: 6724908 (2004-04-01), Fukuyama
patent: 6847139 (2005-01-01), Ueda et al.
patent: 29 05 566 (1980-08-01), None
patent: 57-151096 (1982-09-01), None
patent: 4-362900 (1992-12-01), None
patent: 2001-0088726 (2001-09-01), None
International Search Report corresponding to application No. PCT/JP03/11295 dated Dec. 16, 2003.

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