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:
Oct. 10, 2006

Filed:

Sep. 26, 2003
Applicants:

Ki-hyun Kim, Seongnam-si, KR;

In-sik Park, Suwon-si, KR;

Jae-seong Shim, Seoul, KR;

Sung-hyu Han, Seoul, KR;

Inventors:

Ki-hyun Kim, Seongnam-si, KR;

In-sik Park, Suwon-si, KR;

Jae-seong Shim, Seoul, KR;

Sung-hyu Han, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); H03M 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An LDPC decoding method and apparatus of LDPC decoding a codeword formed by c code bits transmitted through a channel include receiving the codeword and a p×c parity check matrix formed of 0 and 1 values, comparing the codeword with each of p rows of the parity check matrix, the rows formed with c elements, generating an R matrix by obtaining a first minimum value that is a minimum value among elements that are not 0 in each row, a second minimum value that is a second smallest value in the same row, and a location of the first minimum value, and outputting a decoded codeword formed by c code bits by determining one code bit by adding elements of each column of the R matrix.


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