Radio telephone and independently controlled booster

Details Radio telephone and independently controlled booster Radio telephone and independently controlled booster

1997-10-08

1999-11-30

Eisenzopf, Reinhard J.

Telecommunications

Transmitter

Power control, power supply, or bias voltage supply

455 69, 455115, 455571, H04B 102

Patent

active

059958138

ABSTRACT:
In a radio telephone equipment which includes a portable radiotelephone (100) and a booster (400), an output from the portable radiotelephone (100) whose output level is set according to a level control signal transmitted from a base station is amplified with a preset amplification factor by an automatic gain control circuit (22) provided in the booster (400). As a result, since the amplification factor of the amplifier in the booster and the portable radiotelephone are independently controlled, the booster can be connected to even a portable radiotelephone which is designed without considering that it will be connected to the booster.

REFERENCES:
patent: 4380089 (1983-04-01), Weir
patent: 4776034 (1988-10-01), Matsuo
patent: 5048117 (1991-09-01), Aisaka et al.
patent: 5081713 (1992-01-01), Miyazaki
patent: 5109541 (1992-04-01), Park
patent: 5146614 (1992-09-01), Furuno
patent: 5276918 (1994-01-01), Cornforth et al.
patent: 5444867 (1995-08-01), Marui et al.
patent: 5450620 (1995-09-01), Vaisanen
patent: 5457814 (1995-10-01), Myrskog et al.
patent: 5524044 (1996-06-01), Takeda

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