Adapter unit for a portable radio telephone enabling either one

Details Adapter unit for a portable radio telephone enabling either one Adapter unit for a portable radio telephone enabling either one

1992-01-09

1996-12-31

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at same station

With a common signal processing stage

455 90, 379420, H04B 140

Patent

active

055904149

ABSTRACT:
An adapter unit for a portable radio telephone is disclosed. The adapter unit is selectively used for either one of the data transmission and the hand-free operation in response to a control signal from the portable radio telephone. The signal paths for the data transmission and the hand-free operation may be established in the adapter unit when the portable radio telephone is attached to the adapter unit. The adapter unit may be activated upon a connection of the portable radio telephone and the adapter unit.

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