Bone-conduction speaker

Details Bone-conduction speaker Bone-conduction speaker

1999-06-08

2000-10-31

Le, Huyen

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Body contact wave transfer

381326, 381396, H04R 2500

Patent

active

061414271

ABSTRACT:
A yoke 1 having a center magnetic pole 2 around which a voice coil is wound is provided, the yoke 1 is extended in four directions, magnets 4 are disposed on two parts 7 and 7 facing to each other among the extensions, respectively, and diaphragm fixing sections 6 are erected on the other two parts 8 and 8 and a diaphragm is fixed on the diaphragm fixing section 6.

REFERENCES:
patent: 2459325 (1949-01-01), Knowles
patent: 2482044 (1949-09-01), Vernier

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