Radio with a distortion compensation capability

Details Radio with a distortion compensation capability Radio with a distortion compensation capability

2007-03-27

2007-03-27

Vo, Nguyen T. (Department: 2618)

Telecommunications

Transmitter

Noise or interference elimination

C455S127100, C375S297000

Reexamination Certificate

active

10371590

ABSTRACT:
A radio comprises a power amplifier for amplifying a signal to be transmitted; a distortion compensation table storing distortion compensation coefficients for compensating a distortion of the power amplifier; a computing unit for updating the distortion compensation coefficient based on a difference between a transmission input signal and a transmission output signal; a bias voltage controller for applying a bias voltage to the power amplifier, said bias voltage determined based on a transmit control signal so as to maximize a power efficiency of the power amplifier.

REFERENCES:
patent: 4107621 (1978-08-01), Furutani et al.
patent: 5903823 (1999-05-01), Moriyama et al.
patent: 6275103 (2001-08-01), Maniwa
patent: 6737918 (2004-05-01), Oishi et al.
patent: 2000-252914 (2000-09-01), None
patent: 2001094617 (2001-04-01), None
patent: 2001-251148 (2001-09-01), None

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