Radio telephone apparatus

Claim 2

A portable telephone apparatus capable of being selectively connected to an adaptor unit for transmitting a radio fre­quency signal at a certain power level responsive to a level control signal, said radio telephone apparatus comprising: amplifying means for amplifying said radio frequency signal by an amplification factor; radiating means for radiating said amplified radio fre­quency signal; an operator actuatable switch coupled to an output of said amplifying means and selectively coupled to said radiating means and said adaptor unit for selectively applying the output signals of said amplifying means either to said radiating means or to said adaptor unit; control means coupled to said amplifying means and to said operator actuatable switch and responsive to said level control signal for controlling said amplifying means so that said amplification factor of said amplifying means is fixed at a predetermined level when said operator actuatable switch means is in a first state and so that said amplification factor of said amplifying means is variable in response to said level control signal when said operator actuatable switch is in a second state.

Claim 3

The apparatus of claim 1 wherein said radiating means comprises an antenna capable of being extended and said operator actuatable switch is activated in cooperation with the extension of said antenna.

Claim 4

The apparatus of claim 1 further comprises power supply means for supplying power to each section of said apparatus when said operator actuatable switch is actuated.

Claim 5

The apparatus of claim 3 in which power is supplied from said adaptor unit when said operator actuatable switch is not actuated.

Claim 6

A radio telephone apparatus for transmitting signals having a predetermined level in response to a level control signal comprising a portable unit and an adaptor unit capable of being attached to said portable unit: wherein said portable unit includes signal source means for generating signals to be transmitted; first amplifying means coupled to said signal source means for amplifying said signals generated by said signal source means at an amplification factor; first radiating means for radiating applied signals; switch means, coupled to said first amplifying means and selectively coupled to either of said first radiating means and an output terminal for selectively applying the output signals from said first amplifying means either to said first radiating means or to said output terminal; control means coupled to said first amplifying means and said switch means for controlling the amplification factor of said first amplifying means in response to the actuation of said switch means and said level control signal; said adaptor unit including: an input terminal capable of being connected to said out­put terminal of said portable unit; second amplifying means coupled to said input terminal for amplifying signals applied from said input terminal at an amplifica­tion factor; second radiating means coupled to said second amplifying means for radiating an output signal of said second amplifying means.

Claim 7

A radio telephone apparatus for transmitting signals having a predetermined level in response to a level control signal comprising a portable unit and an adaptor unit capable of being attached to said portable unit: wherein said portable unit includes signal source means for generating signals to be transmitted; first amplifying means coupled to said signal source means for amplifying said signals generated by said signal source means at an amplification factor; first radiating means for radiating applied signals; switch means, coupled to said first amplifying means and selectively coupled to either of said first radiating means and an output terminal for selectively applying the output signals from said first amplifying means either to said first radiating means or to said output terminal; control means coupled to said first amplifying means and said switch means for controlling the amplification factor of said first amplifying means in response to the actuation of said switch means and said level control signal; said adaptor unit including: an input terminal capable of being connected to said out­put terminal of said portable unit; second amplifying means coupled to said input terminal for amplifying signals applied from said input terminal at an amplifica­tion factor; second radiating means coupled to said second amplifying means for radiating an output signal of said second amplifying means.

Claim 8

The apparatus of claim 6 wherein said control means con­trols said first amplifying means so that the amplification factor of said first amplifying means is fixed at a predetermined level when said switch means is not actuated.

Claim 9

The apparatus of claim 6 wherein said control means fur­ther controls second amplifying means so that the amplification factor of said second amplifying means is changeable in response to said level control means.

Claim 10

The apparatus of claim 5 wherein said control means con­trols said first amplifying means so that the amplification factor of said first amplifying means is changeable in response to said level con­trol signal when said switch means is actuated.

Claim 11

The apparatus of claim 5 wherein said first radiating means comprises an antenna capable of being extended and said switch means is activated in cooperation with the extension of said antenna.

Claim 12

The apparatus of claim 5 wherein said portable unit com­prises first power supply means for supplying power to each section of said portable unit when said switch means is actuated.

Claim 13

The apparatus of claim 10 wherein said adaptor unit com­prises second power supply means for supplying power to each section of said portable unit and said adaptor unit when said switch means is not actuated.