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. 16, 2010
Filed:
Mar. 13, 2006
Takeshi Ishigami, Kodaira, JP;
Takeshi Ishigami, Kodaira, JP;
Hitachi Kokusai Electric Inc., Tokyo, JP;
Abstract
In a distortion compensating amplifier that compensates for distortion occurring in main amplifiers, a first amplifying unit amplifies, with a first main amplifier, a first signal consisting of a main signal to be amplified and detects distortion occurring in the first main amplifier, a distortion adjusting unit subjects the distortion detected by the first amplifying unit to vector adjustment, a second amplifying unit combines a second signal consisting of the main signal to be amplified and the distortion supplied from the distortion adjusting unit and amplifies a combined signal with a second main amplifier, and a combining unit combines an amplified signal supplied from the first amplifying unit and an amplified signal supplied from the second amplifying unit.