Acoustic pipe for flip style cellular telephone

Details Acoustic pipe for flip style cellular telephone Acoustic pipe for flip style cellular telephone

2005-11-15

2005-11-15

Craver, Charles (Department: 2682)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S128000, C455S347000, C379S433130

Reexamination Certificate

active

06965790

ABSTRACT:
A flip style cellular telephone includes a main housing, a microphone mounted in the main housing and a flip, pivotably mounted to the main housing by a hinge. The flip is formed with an acoustic pipe on a peripheral edge of the flip. The acoustic pipe extends from the free end to the hinged end of the flip, and includes a plurality of holes for a sound inlet at the free end of the flip. The hinge is hollow, and the acoustic pipe connects with the microphone through the hollow hinge. Sound of the user's voice is carried by the acoustic pipe from the inlet to the microphone. The acoustic pipe advantageously only minimally changes the profile and aesthetics of the telephone.

REFERENCES:
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patent: 5197091 (1993-03-01), Takagi et al.
patent: 5832079 (1998-11-01), Rabe
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patent: 5915015 (1999-06-01), Thornton
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patent: 6091964 (2000-07-01), Frohlund
patent: 6091972 (2000-07-01), Ogasawara
patent: 6101402 (2000-08-01), Bartha et al.
patent: 0 120 418 (1984-10-01), None
patent: 0 275 996 (1988-07-01), None
patent: 97 42746 (1997-11-01), None
Abstracts of Japan, vol. 013, No. 046, (E-711) Feb. 2, 1989, of JP 63 24244A.

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