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.

Date of Patent:
Apr. 08, 2008

Filed:

Dec. 20, 2004
Applicants:

Soo-bok Yeo, Suwon-si, KR;

Sang-min Bae, Gyeonggi-do, KR;

Jong-han Lim, Seongnam-si, KR;

Ji-won Ha, Seoul, KR;

Yong-won Shin, Suwon-si, KR;

Inventors:

Soo-Bok Yeo, Suwon-si, KR;

Sang-Min Bae, Gyeonggi-do, KR;

Jong-Han Lim, Seongnam-si, KR;

Ji-Won Ha, Seoul, KR;

Yong-Won Shin, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus for removing a DC offset during frequency direct conversion in a reception device of a wireless communication system. In the apparatus, an adder receives a digital baseband signal comprising a DC component, receives an estimated DC offset value, and calculates a difference between the digital baseband signal with the DC component and the estimated DC offset value. A DC offset calculator receives gain mode information of an analog element of the reception device, and calculates the estimated DC offset value according to the gain mode.


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