Patent ID: 8832526
Filing Date: 2014-09-09
Classification: G06F,G11C,H03M

Abstract:
1. A data reading method, adapted to a rewritable non-volatility memory module, wherein the rewritable non-volatility memory module has a plurality of physical blocks, and each of the physical blocks has a plurality of physical pages, the data reading method comprising: partitioning each of the physical pages into a plurality of bit data areas, wherein in each of the physical pages, at least one of the bit data areas has a data length different from the other bit data areas; writing data into the bit data areas, wherein each of the bit data areas is corresponding to an error checking and correcting (ECC) frame, and among the ECC frames, the ECC frame corresponding to the at least one bit data area has a relatively short data length; reading the data from the bit data areas; executing a data processing procedure according to the read data to obtain an error bit information; and adjusting a log likelihood ratio (LLR) lookup table or at least one threshold voltage according to the error bit information.