Double-dome speaker

Details Double-dome speaker Double-dome speaker

2005-12-27

2005-12-27

Le, Huyen (Department: 2646)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Plural or compound reproducers

C381S412000, C381S424000, C381S430000

Reexamination Certificate

active

06980664

ABSTRACT:
A loudspeaker comprising a moving coil and a membrane fastened to a chassis, where the membrane is divided into a concentrically disposed inner membrane part and a concentrically disposed outer membrane part, whereby a meeting area is defined between the inner membrane part and the outer membrane part, the inner membrane part being fastened to an inner moving coil and the outer membrane part being fastened to an outer moving coil.

REFERENCES:
patent: 3509290 (1970-04-01), Mochida et al.
patent: 3665124 (1972-05-01), Sotome
patent: 4709392 (1987-11-01), Kato et al.
patent: 5339286 (1994-08-01), Esposto
patent: 5548657 (1996-08-01), Fincham
patent: 5604815 (1997-02-01), Paddock
patent: 6647122 (2003-11-01), Jones
patent: 10-108294 (1998-04-01), None

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