Pulse or digital communications – Transmitters – Antinoise or distortion
Reexamination Certificate
2005-01-03
2009-06-02
Payne, David C (Department: 2611)
Pulse or digital communications
Transmitters
Antinoise or distortion
C455S114300
Reexamination Certificate
active
07542518
ABSTRACT:
A polynomial predistortion apparatus and method for compensating for a nonlinear distortion characteristic of a power amplifier is provided. The apparatus and method comprise an adaptation controller for determining polynomial coefficients by calculating an inverse nonlinear distortion characteristic of the power amplifier, and calculating complex predistortion gains for all possible amplitudes of an input signal using the determined polynomial coefficients; and a predistorter for receiving an input signal which is a combination of complex-modulated previous baseband input signal samples and current input signal samples, predistorting the input signal using the complex predistortion gains output from the adaptation controller, and outputting the predistorted input signal to the power amplifier.
REFERENCES:
patent: 5867065 (1999-02-01), Leyendecker
patent: 6236837 (2001-05-01), Midya
patent: 2004/0052313 (2004-03-01), Hovakimyan
patent: 2004/0198268 (2004-10-01), Rashev et al.
Kim Dong-Hyun
Shin Dong-Won
Guarino Rahel
Payne David C
Roylance Abrams Berdo & Goodman LLP
Samsung Electronics Co,. Ltd.
LandOfFree
Predistortion apparatus and method for compensating for a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Predistortion apparatus and method for compensating for a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Predistortion apparatus and method for compensating for a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4145492