The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 26, 2005
Filed:
Oct. 29, 1999
Applicant:
Luc Dartois, Carrieres sous Poissy, FR;
Inventor:
Luc Dartois, Carrieres sous Poissy, FR;
Assignee:
Alcatel, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L025/03 ; H04L025/49 ;
U.S. Cl.
CPC ...
Abstract
A method for the linearization of a wide frequency band power amplifier. The frequency band of operation of the amplifier is divided into at least two groups or subbands. The instantaneous frequency of each sampled input signal is measured in order to determine the group or subband to which it belongs, and predistortions are applied to the input signal, these predistortions depending on the frequency group. The method is particularly useful for the linearization of a power amplifier of a transmitter.