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:
Nov. 28, 2006
Filed:
Aug. 19, 2002
Naoki Hongo, Tokyo, JP;
Yoichi Okubo, Tokyo, JP;
Masaki Suto, Tokyo, JP;
Masato Horaguchi, Tokyo, JP;
Toshio Takada, Tokyo, JP;
Naoki Hongo, Tokyo, JP;
Yoichi Okubo, Tokyo, JP;
Masaki Suto, Tokyo, JP;
Masato Horaguchi, Tokyo, JP;
Toshio Takada, Tokyo, JP;
Hitachi Kokusai Electric Inc., Tokyo, JP;
Abstract
A distortion compensator for compensating for distortion produced in an amplifier that amplifies a signal includes a signal level detector for detecting a level of a signal to be amplified and a distortion compensator for conducting distortion compensation based on the detection result separately for each frequency band signal of multiple frequency band signals contained in the signal to be amplified. The distortion compensator improves distortion compensation performance by reducing the effect of frequency characteristics that restrict the distortion compensation performance limit.