Diaphragm and loudspeaker using same

Details Diaphragm and loudspeaker using same Diaphragm and loudspeaker using same

2005-11-18

2009-12-01

Le, Huyen D (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S398000, C381S432000

Reexamination Certificate

active

07627133

ABSTRACT:
A diaphragm has a through-hole for fixing a voice coil at its center part, and has a fixing part of an edge at its outer periphery which is substantially circular. The shape of the outer periphery of diaphragm is formed as follows: a first circle and a second circle overlap each other with their center points displaced in such a manner that at least one part of an outer periphery of the first circle and the second circle forms a part of the substantially circular outer periphery of the entire shape. Using this structure, signal reproduction characteristics can significantly be flattened by reducing the resonance level.

REFERENCES:
patent: 3180945 (1965-04-01), Tatsuo Suzuki
patent: 6134337 (2000-10-01), Isaka
patent: 2003/0185415 (2003-10-01), Funahashi et al.
patent: 36-18103 (1961-07-01), None
patent: 45-2459 (1970-01-01), None
patent: 47-41471 (1972-12-01), None
patent: 50-10231 (1975-02-01), None
patent: 61-121687 (1986-06-01), None
patent: 63-236499 (1988-10-01), None
patent: 7-162992 (1995-06-01), None
patent: 9-284886 (1997-10-01), None
patent: 2004-04832 (2004-02-01), None

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