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:
Sep. 13, 2011
Filed:
Sep. 16, 2010
Jae-ho Jung, Daejeon, KR;
Gweon-do JO, Daejeon, KR;
Young-hoon Kim, Daejeon, KR;
Jung-hoon OH, Daejeon, KR;
Kwang-chun Lee, Daejeon, KR;
Jae-Ho Jung, Daejeon, KR;
Gweon-Do Jo, Daejeon, KR;
Young-Hoon Kim, Daejeon, KR;
Jung-Hoon Oh, Daejeon, KR;
Kwang-Chun Lee, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
A pre-distortion apparatus of a power amplifier includes: a pre-distortion unit configured to generate a pre-distorted signal of an input signal by calculating a magnitude of the input signal and outputting a complex correction coefficient corresponding to the calculated magnitude of the input signal, and provide the generated pre-distorted signal as an input of the power amplifier; and a complex correct coefficient update unit configured to generate an error signal by comparing an output signal of the power amplifier with the input signal and updating the complex correction coefficient to minimize a magnitude of the generated error signal, wherein the pre-distortion unit provides a constant bias value corresponding to the magnitude of the input signal as a bias of the power amplifier while updating the complex correction coefficient.