Speaker, and module, electronic apparatus, and device that...

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having protective or sheilding feature

Reexamination Certificate

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C381S386000

Reexamination Certificate

active

07548627

ABSTRACT:
A net made of material containing at least metal is bonded to a protector of a loud speaker, and hence shields electromagnetic waves. Electromagnetic interference can be prevented in an electronic apparatus such as a portable phone employing the loud speaker.

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patent: 5-18197 (1993-03-01), None
patent: 7-20796 (1995-04-01), None
patent: 10-136478 (1998-05-01), None

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