LOW DENSITY PARITY CHECK DECODER WITH MISCORRECTION HANDLING

摘要

PROBLEM TO BE SOLVED: To provide a data processing system that includes a decoder circuit, a syndrome calculation circuit and a hash calculation circuit.SOLUTION: The decoder circuit is operable to apply a decoding algorithm to a decoder input on the basis of a first portion of a composite matrix to yield a codeword. The syndrome calculation circuit is operable to calculate a syndrome on the basis of the codeword and the first portion of the composite matrix. The hash calculation circuit is operable to calculate a hash on the basis of a second portion of the composite matrix. The decoder circuit is also operable to correct the codeword on the basis of the hash when the syndrome indicates that the codeword based on the first portion of the composite matrix is correct but a second test indicates that the codeword is miscorrected.