Piston-diaphragm speaker

Details Piston-diaphragm speaker Piston-diaphragm speaker

1982-03-01

1984-09-11

Rubinson, Gene Z.

Acoustics

Anatomic or prosthetic relation

Ear and mouth

181170, H04R 900

Patent

active

044711735

ABSTRACT:
A planar diaphragm type magnetic transducer with an acoustically transparent magnetic backing, and a diaphragm overlying and spaced from the magnetic backing, the magnetic backing having magnetized strips lying parallel to each other and adjacent magnetized strips having opposite polarities at their faces confronting the diaphragm, the diaphragm being stiff and resisting flexing and connected by a flexible surround at its periphery.

REFERENCES:
patent: 3674946 (1972-07-01), Winey
patent: 3829623 (1974-08-01), Willis
patent: 3833771 (1974-09-01), Collinson
patent: 3922502 (1975-11-01), Tabuchi
patent: 3922503 (1975-11-01), Tabuchi
patent: 4242541 (1980-12-01), Ando
S. Rich, "Electrodynamic Loudspeaker . . . ," Electronics, Jun. 11, 1961.

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