Loudspeaker

Details Loudspeaker Loudspeaker

1994-07-20

1996-04-23

Kuntz, Curtis

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having electrostatic element

381199, 381188, 381205, 381194, 381197, H04R 2500

Patent

active

055111319

ABSTRACT:
A loudspeaker has two magnets disposed directly with respect to voice coils for generating a repulsion magnetic field at the voice coils, without interposition of yoke but with mutually repulsing magnetic polarities of the magnets, and a diaphragm directly coupled at inner peripheral edge substantially to the center of outer periphery of the voice coils. Driving force is transmitted highly efficiently from the voice coils to the diaphragm, and the loudspeaker can be sufficiently minimized in the thickness and weight.

REFERENCES:
patent: 3201529 (1965-08-01), Surch
patent: 4783824 (1988-11-01), Kobayashi
patent: 4817165 (1987-01-01), Amalaha
patent: 4868882 (1989-09-01), Ziegenbert et al.
patent: 5062140 (1989-04-01), Inanaga et al.
patent: 5123053 (1992-06-01), House
patent: 5214710 (1993-05-01), Ziegenberg et al.

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