An apparatus for encoding using a low-density parity check code

摘要

Disclosed is an encoding apparatus for carrying out encoding by an LDPC (Low Density Parity Check) code. The apparatus is comprised of encoding means and a parity check matrix. The encoding means is configured for carrying out encoding by an LDPC code which has a code length of 64,800 bits and an encoding rate of 2/3. The parity check matrix of the LDPC code is configured such that elements of the value 1 of an information matrix are arranged in a period of every 360 columns in the column direction. The information matrix corresponds to the code length of the parity check matrix and an information length corresponding to the encoding rate, decided by a parity check matrix initial value table representative of the positions of the elements of the value 1 of the information matrix.