Telecommunications – Transmitter and receiver at same station – Having particular housing or support of a transceiver
Patent
1995-05-30
1998-06-23
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at same station
Having particular housing or support of a transceiver
455351, 455575, 343702, 343882, 403 92, H04B 138, H04B 108
Patent
active
057714665
ABSTRACT:
A portable radio transceiver of the invention includes an antenna base portion, a coil spring for producing a predetermined repulsive force between an antenna base portion and a casing and a hook portion for housing the antenna base portion within a rear surface of the casing when the coil spring is compressed. One end portion of the antenna base portion is constituted with a pin shaped shaft fixedly implanted in the casing and a rotary base portion in the form of a hollow cylinder having an elliptic cross section. The rotary base portion which is movable along an axis of the hollow portion thereof and and rotatable therein is biased by the coil spring in a direction away from the casing. When a communication is to be done, the antenna is rotated to protrude it in a direction away from a user to thereby reduce influence of the user on the antenna.
REFERENCES:
patent: 3811151 (1974-05-01), Kummerlin
patent: 3946317 (1976-03-01), Ishimaru et al.
patent: 4538155 (1985-08-01), Stewart
patent: 5218370 (1993-06-01), Blaese
Nagai Michio
Tsugane Yoshiyuki
Eisenzopf Reinhard J.
NEC Corporation
Sobutka Philip J.
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