Predistorter

Details Predistorter Predistorter

2007-03-13

2007-03-13

Pascal, Robert (Department: 2817)

Amplifiers

Hum or noise or distortion bucking introduced into signal...

Reexamination Certificate

active

11042521

ABSTRACT:
A predistortion distortion signal generating unit uses a signal to be amplified to generate a predistortion distortion signal including odd-order signal components of the signal. A delay time difference adjusting unit adjusts a delay time difference between a signal to be amplified and a distortion signal for predistortion such that an influence by the memory effect occurring in the amplifier can be reduced. A predistortion distortion signal giving unit gives a predistortion distortion signal to a signal to be amplified in a form that the delay time difference is adjusted.

REFERENCES:
patent: 5589797 (1996-12-01), Gans et al.
patent: 6388518 (2002-05-01), Miyatani
patent: 7023273 (2006-04-01), Johnson et al.
patent: 2004/0239429 (2004-12-01), Kermalli

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