Bone conductive speaker

Details Bone conductive speaker Bone conductive speaker

2007-11-06

2007-11-06

Tran, Sinh (Department: 2615)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Body contact wave transfer

C381S326000

Reexamination Certificate

active

10515842

ABSTRACT:
A bone conductive speaker is downsized without causing any loss in efficiency, simple in construction low in cost, and comprises yoke (2), magnet (3) disposed in a central area of the yoke, and voice coil (4) wound on the magnet. The yoke has its peripheral area divided into a plurality of upright portions; of the upright portions, each of first ones (5) oppositely disposed from each other is provided with a first engaging means (9) in its upper surface; second engaging means (8) each corresponding to the first engaging means are provided in a vibrating plate (7). The vibrating plate is mounted on a lid portion of the housing in a manner such that the vibrating plate is disposed on the upright portions of the yoke and fixedly mounted by means of the second engaging means in a manner such that the vibrating plate floats in the housing.

REFERENCES:
patent: 2062372 (1936-12-01), Nicholides
patent: 2127468 (1938-08-01), Henry
patent: 2463786 (1949-03-01), Lybarger
patent: 6141427 (2000-10-01), Fukuda
patent: 6668065 (2003-12-01), Lee et al.
patent: 6839443 (2005-01-01), Fukuda
patent: 2001/0009586 (2001-07-01), Suzuki

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