Electric acoustic converter having a rear surface terminal

Details Electric acoustic converter having a rear surface terminal Electric acoustic converter having a rear surface terminal

2005-01-11

2005-01-11

Le, Huyen D. (Department: 2643)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S386000, C381S410000

Reexamination Certificate

active

06842530

ABSTRACT:
The present invention relates to an electric acoustic converter used as a speaker or a receiver of a mobile communication device such as a portable telephone or the like. In the electric acoustic converter according to the present invention, the size reduction and thinning of the thickness of the electric acoustic converter can be promoted by providing surface-like rear surface terminals 81 and 82 on the exposed surface 33 which is a rear surface of the yoke 3.

REFERENCES:
patent: 10-164693 (1998-06-01), None
patent: 11-27777 (1999-01-01), None
patent: 11-355409 (1999-12-01), None

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