Patent ID: 11901912
Assignee: SILICON MOTION, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. The method as claimed in claim 7, wherein in the decoding phase, during each LDPC decoding iterative operation, the method further comprises:
calculating a syndrome weight according to the syndrome;
obtaining one or more first codeword bits in the previous codeword with the value of the register being 1 from the variable-node memory, and regarding other second codeword bits in the previous codeword as 0;
performing a bit-flipping algorithm according to the syndrome weight to flip one or more codeword bits in the first codeword bits and the second codeword bits in the previous codeword to generate an updated codeword;
subtracting the previous codeword from the updated codeword to generate the codeword difference; and
transmitting the codeword difference to the check-node circuit to update the syndrome.