Power amplifier capable of saturation and linear amplification

Details Power amplifier capable of saturation and linear amplification Power amplifier capable of saturation and linear amplification

1991-10-16

1995-02-21

Kuntz, Curtis

Telecommunications

Transmitter

Convertible to different type

455127, 330284, 375 5, H04B 104, H04L 2708, H03G 310

Patent

active

053924630

ABSTRACT:
A power amplifier used in a mobile radio apparatus operated selectively in an analog mode and a digital mode comprises an amplifying circuit for saturation-amplifying and linear-amplifying a speech signal and a switch for selectively switching the amplifying circuit to a saturation amplification and a linear amplification in accordance with the analog mode and the digital mode.

REFERENCES:
patent: 3984783 (1976-10-01), Bickley
patent: 4234853 (1980-11-01), Yamaguchi
patent: 5060294 (1991-10-01), Schwent
patent: 5101173 (1992-03-01), DiPiazza et al.
patent: 5179353 (1993-01-01), Miyake
patent: 5241694 (1993-08-01), Vaisanen et al.
Fisher, "Dual Mode Mobile Unit For Next Generation Digital Narrow Channel Cellular Telephone System", 38th IEEE Vehicular Technology Conference, 17 Jun. 1988, pp. 543-547.
Henn et al., "AT & T Next Generation Digital Cellular Base Station Technology", International Switching Symposium 1990, vol. 6, 1 Jun. 1990, pp. 195-198.

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