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. 13, 2012
Filed:
Feb. 17, 2011
Satoshi Matsubara, Kawasaki, JP;
Shuya Hirata, Kawasaki, JP;
Takeshi Ohba, Kawasaki, JP;
Hideharu Shako, Kawasaki, JP;
Jun Sugiyama, Kawasaki, JP;
Satoshi Matsubara, Kawasaki, JP;
Shuya Hirata, Kawasaki, JP;
Takeshi Ohba, Kawasaki, JP;
Hideharu Shako, Kawasaki, JP;
Jun Sugiyama, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An error between the power of an input signal, which is input to a power amplifier, and the power of an output signal, which is output from the power amplifier, is calculated. The calculated error is normalized according to the power of the input signal or the power of the output signal. A distortion correction coefficient, which is stored in a predetermined storage unit in association with the power of the input signal, is updated using the normalized error.