Waterproof acoustic structure applicable in conjunction with...

Details Waterproof acoustic structure applicable in conjunction with... Waterproof acoustic structure applicable in conjunction with...

2005-12-13

2005-12-13

Le, Huyen (Department: 2646)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Mounting or support feature of housed loudspeaker

C381S189000, C381S391000

Reexamination Certificate

active

06975740

ABSTRACT:
The invention relates to an acoustic structure which complies with protection standard IP 67 and which can be used to provide hands-free capability e.g. in cellular terminals or small radio receivers. The acoustic structure comprises, in a device body (100), two interconnected, separate cavities for speaker means (151, 152, 153) and isolating means (120, 125, 130, 140). An isolating diaphragm (125) belonging to the speaker arrangement according to the invention is utilized simultaneously as an isolating means against dust and water and as a sound-reproduction element.

REFERENCES:
patent: 2004/0037441 (2004-02-01), Konishi et al.
patent: 2064265 (1981-10-01), None
Patent Abstracts of Japan, JP2002271465, Hitachi Kokusai Electric, Inc., Sep. 2, 2002.
Patent Abstracts of Japan, JP11069472, Uniden Corp., Sep. 3, 1999.

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