Loudspeaker with motional feedback

Details Loudspeaker with motional feedback Loudspeaker with motional feedback

1984-07-23

1986-09-02

Rubinson, Gene Z.

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

1791155R, 1791155VC, 381 96, H04R 900, H04R 308, H04R 902, H04R 906

Patent

active

046097848

ABSTRACT:
A loudspeaker having a main magnet assembly 10,14,16 and voice coil 20 driving a diaphragm 24 via a coupling 22 is provided with a motional feedback transducer comprising twin axially-disposed coils 38,40 mounted on the coupling 22 for movement in a secondary, radial magnetic field produced by magnets 28 and 30.

REFERENCES:
patent: 3798374 (1974-03-01), Meyers
patent: 3937905 (1976-02-01), Manger
patent: 4243839 (1981-01-01), Takahashi et al.
patent: 4256923 (1981-03-01), Meyers
patent: 4276443 (1981-06-01), Meyers
patent: 4295006 (1981-10-01), Tanaka et al.
patent: 4421956 (1983-12-01), O'Neill

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