Ribbon speaker

Details Ribbon speaker Ribbon speaker

1991-07-31

1993-05-18

Ng, Jin F.

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

381202, 381190, H04R 2500

Patent

active

052127362

ABSTRACT:
A vibrating diaphragm is disposed in a magnetic gap. The diaphragm comprises two organic films superimposed on each other, and two metal films overlaid on the organic films, respectively. One of the organic films has a smaller polarization and the other organic film has a large polarization. Both metal films are different in work function, and electrically connected by a metal film. Electric current is supplied to the vibrating diaphragm to vibrate it.

REFERENCES:
patent: 3564163 (1971-02-01), Hobrough
patent: 4027111 (1977-05-01), Kasatkin et al.
patent: 4216271 (1980-08-01), Takeuchi et al.
patent: 4550228 (1985-10-01), Walker et al.
patent: 4726443 (1988-02-01), Ugaji et al.
Japanese Journal of Applied Physics, vol. 29, No. 3, Mar., 1990, pp. L486-L489.

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