Loudspeaker structure

Details Loudspeaker structure Loudspeaker structure

1996-06-13

1997-09-16

Tran, Sinh

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having electrostatic element

381202, 381203, 381193, H04R 2500

Patent

active

056688865

ABSTRACT:
A high performance loudspeaker structure is provided which is of reduced thickness yet resistible to large vibration amplitudes. A repulsion magnetic circuit is formed by two magnets with the same poles being faced each other and a center plate interposed between the two magnets. The repulsion magnetic circuit is held in position by two frames. A diaphragm is mounted at the level flush with the center of the winding width of a voice coil. The outer periphery of an edge (suspension) bonded to the outer circumference of the diaphragm is held by flanges of the frames.

REFERENCES:
patent: 3746898 (1973-07-01), Austin et al.
patent: 3937905 (1976-02-01), Manger
patent: 4198550 (1980-04-01), Matsuda et al.
patent: 4868882 (1989-09-01), Ziegenberg et al.
patent: 5123053 (1992-06-01), House
patent: 5371806 (1994-12-01), Kohara et al.

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