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. 25, 2012
Filed:
Jun. 03, 2009
Bon Young Koo, Gyunggi-do, KR;
Hyung Jin Choi, Seoul, KR;
SE Bin Im, Gyunggi-do, KR;
Jung IN Kim, Gyunggi-do, KR;
Bon Young Koo, Gyunggi-do, KR;
Hyung Jin Choi, Seoul, KR;
Se Bin Im, Gyunggi-do, KR;
Jung In Kim, Gyunggi-do, KR;
Samsung Electro-Mechanics Co., Ltd., Gyunggi-do, KR;
Sungyunkwan University Foundation for Corporate Collaboration, Gyunggi-do, KR;
Abstract
A frequency synchronization apparatus includes: a correlating unit that obtains a first correlation value by correlating a known reference guard interval of an OFDM symbol and a reference copy interval corresponding to the reference guard interval, and obtains a second correlation value by correlating the estimate guard interval and an estimate copy interval corresponding to the estimate guard interval; a determining unit that compares the first and second correlation values to determine a first case where the first correlation value is larger by a pre-set magnification than the second correlation value, a second case where the second correlation value is larger by a pre-set magnification than the first correlation value, and a third case which is not the first case nor the second case; and a frequency offset estimating unit that estimates a frequency offset by using a correlation value corresponding to any one of the first to third.