Method, Memory Controller and System for Reading Data Stored in Flash Memory,申请号US201213402615-传众专利搜索

Method, Memory Controller and System for Reading Data Stored in Flash Memory

申请公布号：US2013215678(A1)

申请号：US201213402615

申请日期：2012.02.22

申请公布日期：2013.08.22

申请人：

YANG TSUNG-CHIEH;SILICON MOTION, INC.

发明人：YANG TSUNG-CHIEH

分类号：G11C16/26

主分类号：G11C16/26

摘要：An exemplary method for reading data stored in a flash memory. The method comprises: controlling the flash memory to perform a first read operation upon the memory cell with a first threshold voltage to obtain a first binary digit for representing a bit of the N bits data; performing an error correction hard decode according to the first binary digit; controlling the flash memory to perform a second read operation upon the memory cell with a second threshold voltage to obtain a second binary digit for representing the bit of the N bits data, if the error correction hard decode indicates an uncorrectable result; and performing an error correction soft decode according to the first binary digit and the second binary digit.