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:
Feb. 05, 2013
Filed:
Apr. 09, 2009
Maki Nakamura, Osaka, JP;
Kaoru Ishida, Osaka, JP;
Maki Nakamura, Osaka, JP;
Kaoru Ishida, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The polar modulation apparatus of the present invention can control the output power of a transmission signal over a wide range and compensate characteristic degradation reliably upon temperature change. Polar modulation transmission apparatusis provided with: temperature sensor; temperature compensation section-that corrects an amplitude signal and performs temperature compensation for transmission power amplification section; temperature compensation section-that corrects a power amplification signal and performs temperature compensation for power adjustment section; and correction value setting sectionthat sets correction values for temperature compensation section-and temperature compensation section-, and, while only the amplitude signal is corrected according to a measurement result in temperature sensorin the first mode, the amplitude signal and the power adjustment signal are corrected according to a measurement result in the second mode.