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:
Jan. 12, 2010
Filed:
Dec. 30, 2004
Pansoo Kim, Daejon, KR;
Yun-jeong Song, Daejon, KR;
Soon-ik Jeon, Daejon, KR;
Deock-gil OH, Daejon, KR;
Ho-jin Lee, Daejon, KR;
Pansoo Kim, Daejon, KR;
Yun-Jeong Song, Daejon, KR;
Soon-Ik Jeon, Daejon, KR;
Deock-Gil Oh, Daejon, KR;
Ho-Jin Lee, Daejon, KR;
Abstract
Provided are an apparatus for estimating frequency offset from received signal and method for the same. The apparatus and method estimates frequency offset precisely without increment of autocorrelator by performing moving average filtering on a noised signal to thereby alleviate jitter. The frequency offset estimating apparatus includes: moving average filter for alleviating jitter of received signal; multiplier for multiplying a filtered signal by conjugate complex operanded pilot signal; phase-rotation value calculator for calculating a phase-rotation value from multiplicand operanded signal by using of symbol delay and an autocorrelation function; frequency offset estimator for estimating frequency offset from the phase-rotation value based on a smoothing function multiplication.