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. 08, 2013
Filed:
Aug. 17, 2009
Gang Sun, Beijing, CN;
Jian Min Zhou, Beijing, CN;
Zhan Shi, Beijing, CN;
Hui LI, Beijing, CN;
Fujitsu Limited, Kawasaki, JP;
Abstract
This invention relates to a nonlinear degree measuring apparatus and method for a power amplifier, and a predistortion compensation apparatus. The nonlinear degree measuring apparatus comprises a delayer (), for delaying inputted pilot frequency data; a subtracter (), for subtracting, from the pilot frequency data delayed by the delayer, subsequently inputted pilot frequency data; a power calculating unit (), for calculating an instantaneous power of an outputted signal from the subtracter (); and an averager (), for averaging the instantaneous power calculated by the power calculating unit () to obtain an averaged power.