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:
Aug. 14, 2012
Filed:
Apr. 17, 2009
Taichi Ikedo, Kanagawa, JP;
Taichi Ikedo, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The amplitude control circuit of the present invention can reduce output noise and suppress a decrease in reception sensitivity. An amplitude control section (), which is an amplitude control circuit, is provided with: a DA converter () that converts amplitude data into differential amplitude signals and outputs the differential amplitude signals; a level control section () that controls the levels of the differential amplitude signals according to transmission power information P; and an offset calculating section () that assigns the DC voltage based upon transmission power information P to the differential amplitude signals subjected to level control in the level control section ().