Dynamic transducer device

Details Dynamic transducer device Dynamic transducer device

1985-08-22

1988-01-19

Brown, Thomas W.

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Plural or compound reproducers

381194, 381195, 381199, 381186, H04R 124, H04R 900

Patent

active

047208686

ABSTRACT:
A dynamic speaker device having a small-sized vibrating plate for reproducing a high frequency sound is further provided with an additional coil in the vicinity of the magnet assembly of the speaker. The additional coil is mounted on a comparatively heavy vibrating element which is supported by a spring plate. The additional coil and the vibrating element vibrates to reproduce lower frequency sound and vibration in response to audio signal supplied to the additional coil.

REFERENCES:
patent: 2539672 (1951-01-01), Olson et al.
patent: 4064376 (1977-12-01), Yamada
patent: 4550428 (1985-10-01), Yanagishima et al.
patent: 4635287 (1987-01-01), Hirano

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