Electromagnetic bipolar loud speaker

Details Electromagnetic bipolar loud speaker Electromagnetic bipolar loud speaker

1976-12-27

1978-03-28

Stellar, George G.

H04R 900

Patent

active

040816273

ABSTRACT:
An electromagnetic bipolar loud speaker of the planar type utilizing a vibratable diaphragm having conductors positioned thereon and uniformly distributed over the vibratable area of the diaphragm to interact with a unidirectional, homogeneous magnetic field generated by a coil surrounding the diaphragm. The loud speaker may be made of a number of diaphragms with different sized vibratable areas and with the same conductor orientation thereon with respect to the supporting frame and energizing magnetic field to cover the wide range of frequency responses.

REFERENCES:
patent: 3919499 (1975-11-01), Winey
patent: 4020296 (1977-04-01), Dahlquist

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