Patent ID: 9621190
Date: 2017-04-11
CPC Classifications: H03M,H04L

Claim:
1. A method of decoding an LDPC code by an LDPC (Low Density Parity Check) decoder device, the method comprising: receiving an LDPC codeword; and decoding the received LDPC codeword corresponding to a parity check matrix, wherein the parity check matrix includes: a first matrix, a dual diagonal matrix which has the same number of rows and columns as the number of rows of the first matrix, a zero matrix which has the same number of rows as the number of columns of the dual diagonal matrix, a second matrix which has the same number of rows as the number of the columns of the zero matrix, and an identity matrix which has the same number of rows and columns as the number of the columns of the zero matrix, wherein a last column of the first matrix is adjacent to a first column of the dual diagonal matrix in the parity check matrix, a last row of the first matrix and a last row of the dual diagonal matrix are adjacent to a first row of the second matrix in the parity check matrix.