Wireless microphone

Details Wireless microphone Wireless microphone

2011-07-12

2011-07-12

Nguyen, Tuan D (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Housed microphone

C381S360000, C381S361000

Reexamination Certificate

active

07978869

ABSTRACT:
A wireless microphone includes a perforated front cover mounted on a front open end of a tubular housing, and a control module mounted fixedly on a rear open end of the housing and having an outer surrounding surface provided with a power switch and electrode plates. A rear cover is connected detachably to the control module, and is formed with a switch-receiving groove and through holes. The rear cover is operable so as to be disposed between an adjusted position, where the power switch is exposed from the switch-receiving groove and where the electrode plates are respectively exposed from the through holes, and a used position, where the power switch and the electrode plates are fully covered by the rear cover. A positioning member positions the rear cover at a selected one of the used and adjusted positions.

REFERENCES:
patent: 5781644 (1998-07-01), Chang
patent: 6477257 (2002-11-01), Chang
patent: 6496588 (2002-12-01), Chang
patent: 6778814 (2004-08-01), Koike
patent: 6968070 (2005-11-01), Chiang

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