Radio telephone apparatus

Details Radio telephone apparatus Radio telephone apparatus

1991-05-20

1992-03-10

Kuntz, Curtis

Telecommunications

Transmitter and receiver at same station

With a common signal processing stage

455127, 455343, H04B 138

Patent

active

050955411

ABSTRACT:
A portable telephone apparatus which is capable of being selectively connected to an adaptor unit for transmitting a radio frequency (RF) signal at a certain power level in response to a level control signal. The telephone apparatus includes an amplifier for amplifying the RF signal by a predetermined amplification factor and an antenna for radiating the amplified RF signal. An operator actuatable switch is coupled to the output of the amplifier and is selectively coupled to the antenna and the adaptor unit. A control device is coupled to the amplifier and the operator actuatable switch and is responsive to the level control signal for controlling the amplifier so that the amplification factor of the amplifier is fixed to a predetermined level when the operator actuatable switch is in a first state and to a variable level when the actuatable switch is in a second state.

REFERENCES:
patent: 4636741 (1987-01-01), Mitzlaff
patent: 4723304 (1988-02-01), Maeda
patent: 4903325 (1990-02-01), Yoshitake et al.
patent: 4962543 (1990-10-01), Kuge et al.
patent: 4977611 (1990-12-01), Maru

Affiliated with

Also associated with

Rating

Radio telephone apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radio telephone apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio telephone apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2290707