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:
Mar. 29, 2011
Filed:
Dec. 23, 2008
Yoshito Shimizu, Kanagawa, JP;
Noriaki Saito, Tokyo, JP;
Yoshito Shimizu, Kanagawa, JP;
Noriaki Saito, Tokyo, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A distortion compensating circuit is provided in which, in the polar modulation system, while suppressing increase of compensation data and increase of the circuit scale, a modulated signal can be correctly expressed, or low-distortion characteristics of a power amplifier can be realized. Based on a steady characteristic compensating circuitwhich stores an output signal amplitude and output phase characteristics with respect to a control voltage in a steady state, amplitude adjustment is executed on amplitude information r(t) on which amplitude correction is performed, by a first amplitude information adjusting portion, whereby the output-response characteristics of an output signal amplitude of an amplifier with respect to a change of the control voltage can be improved.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile