Structural arrangement for a radio communication terminal...

Details Structural arrangement for a radio communication terminal... Structural arrangement for a radio communication terminal...

2006-11-28

2006-11-28

Nguyen, Lee (Department: 2618)

Telecommunications

Transmitter and receiver at same station

Having particular housing or support of a transceiver

C455S569100, C381S335000

Reexamination Certificate

active

07142827

ABSTRACT:
In a structural arrangement for radio communication terminals comprising a casing in which are disposed at least a first sound transducer having an earpiece function and a second sound transducer having a loudspeaker function, the two transducers being respectively connected to two opposite faces of a printed circuit card, and each transducer comprising at least one resonating membrane vibrating in a front acoustical cavity and a rear acoustical cavity. The rear acoustical cavities of the transducers communicate with each other via orifices formed in the printed circuit card to form a twin rear acoustical cavity.

REFERENCES:
patent: 6324284 (2001-11-01), Hawker et al.
patent: 2001/0014161 (2001-08-01), Baiker et al.
patent: 2003/0068987 (2003-04-01), Dufosse et al.
patent: 100 52 909 (2002-05-01), None
patent: 1 091 539 (2001-04-01), None
patent: 1 294 051 (2003-03-01), None
patent: WO00/38475 (2000-06-01), None

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