Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having protective or sheilding feature
Reexamination Certificate
2005-02-01
2009-06-16
Le, Huyen D (Department: 2614)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having protective or sheilding feature
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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Fukuyama Takanori
Honda Kazuki
Kawabe Masashi
Koike Toshiyuki
Kubo Kazutaka
Le Huyen D
Panasonic Corporation
Wenderoth , Lind & Ponack, L.L.P.
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