| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus for generating a low-density parity check matrix and methods thereof. SOLUTION: The apparatus includes at least one index generator for generating row indexes of "1"s, which indicate row positions of the "1"s in each column of the parity check matrix, wherein the index generator is implemented by utilizing a modular shift register generator that generates a row index of a "1" at each clock. Thus, the parity check matrix is not stored in a memory, thereby reducing memory capacity required for an encoder and a decoder. COPYRIGHT: (C)2006,JPO&NCIPI
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