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:
Feb. 21, 2012

Filed:

Aug. 18, 2008
Applicants:

Hyun Suk Lee, Gyunggi-do, KR;

SE Bin Im, Gyunggi-do, KR;

Je Hyuk Ryu, Gyunggi-do, KR;

Jae Goon Aum, Gyunggi-do, KR;

Jung Tae Kim, Gyunggi-do, KR;

Hyung Jin Choi, Seoul, KR;

Inventors:

Hyun Suk Lee, Gyunggi-do, KR;

Se Bin Im, Gyunggi-do, KR;

Je Hyuk Ryu, Gyunggi-do, KR;

Jae Goon Aum, Gyunggi-do, KR;

Jung Tae Kim, Gyunggi-do, KR;

Hyung Jin Choi, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 27/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is an apparatus for estimating a delay spread of a multi-path fading channel in an Orthogonal Frequency Division Multiplexing (OFDM) system. The apparatus is applied to an OFDM receiver including a channel equalization unit compensating channel distortion by estimating channel distortion at pilot locations with respect to output signals of an FFT unit.


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