Patent ID: 9246518
Filing Date: 2016-01-26
CPC Classification: H03M,H04B,H04L

Claim Text:
1. A signal generating apparatus comprising: a first Low Density Parity Check (LDPC) encoding section that generates a first encoded data sequence by encoding transmission data using a code defined by a parity check matrix including a plurality of columns that are different in column weight; and a second LDPC encoding section that generates a second encoded data sequence by selecting, among the first encoded data sequence, an encoded data sequence as the second encoded data sequence based on column weights of the parity check matrix, the number of “1”s of a column vector, which is a column weight, corresponding to the second encoded data sequence, is equal to or greater than the number of “1”s of a column vector, which is a column weight, corresponding to an encoded data sequence not selected from the first encoded data sequence; wherein: a data length of the second encoded data sequence is shorter than a data length of the first encoded data sequence.