Option selection method and apparatus

Details Option selection method and apparatus Option selection method and apparatus

1991-10-10

1993-10-26

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at same station

With a common signal processing stage

455 68, 455350, 379447, H04B 138, H04B 120

Patent

active

052574130

ABSTRACT:
A radio circuit (10) provides for the selection of a mode of operation for the radio in response to sensing an external accessory (22, 22') including a speaker or an earpiece being connected to the radio circuit.

REFERENCES:
patent: 4792986 (1988-12-01), Garner et al.
patent: 5108335 (1992-04-01), Carey et al.

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