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. 25, 2009
Filed:
Dec. 22, 2005
Hae-moon Seo, Yongin, KR;
Yeon-kuk Moon, Seoul, KR;
Young-kuk Park, Yongin, KR;
Kwang-ho Won, Yongin, KR;
Myung-hyun Yoon, Sungnam, KR;
Seong-dong Kim, Daegu, KR;
Hae-Moon Seo, Yongin, KR;
Yeon-Kuk Moon, Seoul, KR;
Young-Kuk Park, Yongin, KR;
Kwang-Ho Won, Yongin, KR;
Myung-Hyun Yoon, Sungnam, KR;
Seong-Dong Kim, Daegu, KR;
Korea Electronics Technology Institute, Kyunggi-Do, KR;
Abstract
The present invention relates to an I/Q modulator using a current-mixing method used for a direct conversion wireless communication transmitter. In accordance with the present invention, an EVM of a wireless communication system, a linearity and a power consumption are improved by converting a D/A converted signal to a current level and then performing a frequency modulation.