Telecommunications – Transmitter and receiver at same station – With transmitter-receiver switching or interaction prevention
Patent
1997-08-12
2000-06-06
Bost, Dwayne D.
Telecommunications
Transmitter and receiver at same station
With transmitter-receiver switching or interaction prevention
4552771, 455 99, 455345, 455120, 455121, 455123, 4551931, H04B 144, H04B 106, H04B 1034, H01Q 1112
Patent
active
060729937
ABSTRACT:
A portable radio transceiver selectively transmits and/or receives RF signals in two frequency bands and in two modes of operation. The radio transceiver selectively switches between two antennas for operating in either of the two modes, such as a handheld mode of operation using the transceiver's on-board antenna and battery, or a car mode of operation using an external antenna and battery. Either antenna can transmit and/or receive RF signals in the two frequency bands, such as PCS and cellular, for example.
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Berg Roger William
Trikha Pushp Kumar
Bost Dwayne D.
Frommer William S.
Legree Tracy M.
Sony Corporation
Sony Electronics Inc.
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