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:
Jan. 06, 2004
Filed:
Dec. 28, 1999
Applicant:
Inventors:
Richard Steven Griph, Mesa, AZ (US);
Albert Howard Higashi, Lawrenceville, GA (US);
Assignee:
General Dynamics Decision Systems, Inc., Scottsdale, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/500 ; H04N 5/21 ;
U.S. Cl.
CPC ...
H04B 1/500 ; H04N 5/21 ;
Abstract
A post-HPA filter rejection equalizer system and method locally equalizes post-HPA filtering. A predistorter ( ) uses a phase error to control the predistortion, and an equalizer ( ) uses a magnitude error to control the equalization. The equalizer samples the HPA output multiple occurrences in a burst fashion. The equalized signal is then used to determine phase and magnitude errors. The phase errors ( ) are used to update the predistorter ( ), and the magnitude errors ( ) are used to update the analytic equalizer.