Variable geometry electromagnetic transducer

Details Variable geometry electromagnetic transducer Variable geometry electromagnetic transducer

1997-05-05

2000-10-24

Le, Huyen

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

381423, 381431, H04R 2500

Patent

active

061378917

ABSTRACT:
A variable geometry transducer diaphragm having an electrical conductor layer, with a conductor pattern, is positioned on an insulating layers. Magnets used to create an electromagnetic field around the conductors may be placed in the insulating layer or formed as part of the frame supporting the diaphragm. Alternatively, the frame may be constructed to function as plates of a capacitor creating an electrostatic field around the diaphragm.

REFERENCES:
patent: 4276449 (1981-06-01), Sawafuji
patent: 4322698 (1982-03-01), Takahashi
patent: 4491698 (1985-01-01), Larson
patent: 4782471 (1988-11-01), Klein
patent: 5430805 (1995-07-01), Stevenson

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