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:
Jun. 07, 2011
Filed:
Jan. 29, 2008
Taichi Ikedo, Kanagawa, JP;
Akihiko Matsuoka, Kanagawa, JP;
Taichi Ikedo, Kanagawa, JP;
Akihiko Matsuoka, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
Provided is a power voltage forming device which can correct an offset voltage of a high-frequency power amplifier without degrading distortion characteristic of a high-frequency power amplifier. The power voltage forming device () includes: a level adjusting unit () which adjusts the level of input data subjected to analog conversion, according to an output level control value for controlling the output level of the high-frequency power amplifier (); an analog adder () which performs analog addition of the offset data subjected to the analog conversion, to the signal after the level adjustment; a digital adder () which performs digital addition of the offset data to the input data before the analog conversion; and a selection unit () which selects whether to perform addition by the analog adder () or addition by the digital adder () according to the output level control value.