Telecommunications – Transmitter and receiver at same station – With a common signal processing stage
Patent
1994-07-18
1996-02-20
Pham, Chi H.
Telecommunications
Transmitter and receiver at same station
With a common signal processing stage
455 90, 455127, 455349, 455351, 379 58, 379454, H04B 138, H04Q 732
Patent
active
054937035
ABSTRACT:
A portable radio device includes a radio device main body, a man-machine interface unit, a first interface unit, a fixing adaptor, and a cord. The radio device main body has a radio unit for transmitting/receiving a radio speech signal and a control unit for controlling a signal transmitting/receiving operation of the radio unit. The man-machine interface unit has a telephone transmitter unit and a telephone receiver unit, which are used for speech communication, and is detachably coupled to the radio device main body. The first interface unit electrically connects the radio device main body to the man-machine interface unit in a coupled state. The radio device main body is detachably mounted on the fixing adaptor. The fixing adaptor supplies power to the radio device main body in a mounted state of the radio device main body. The cord is detachably connected to the man-machine interface unit and electrically connects the man-machine interface unit to the radio device main body through the fixing adaptor.
REFERENCES:
patent: 5054115 (1991-10-01), Sawa et al.
patent: 5259018 (1993-11-01), Grimmett et al.
NEC Corporation
Pham Chi H.
LandOfFree
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