Driver for a speaker

Details Driver for a speaker Driver for a speaker

2011-07-12

2011-07-12

Nguyen, Tuan D (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S340000

Reexamination Certificate

active

07978872

ABSTRACT:
A driver for a speaker including: an upper housing, a lower housing and a vibration device, wherein said upper housing combines with said lower housing to form a chamber therein. The vibration device is received in the chamber. The vibration device is basically constituted with an acoustic phase equalizer, a diaphragm, a flux guiding plate, a magnet and a yoke. By the design of the flux guiding plate, the magnet and the yoke in present invention, the disadvantage of highly concentrated heat in prior art can be improved and extends the operation period.

REFERENCES:
patent: 4031337 (1977-06-01), Okamura et al.
patent: 4514599 (1985-04-01), Yanagishima et al.
patent: 5253301 (1993-10-01), Sakamoto et al.
patent: 5987148 (1999-11-01), Hsieh
patent: 375346 (1999-11-01), None

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