ソリッド・ステート・メモリ・デバイスにおける復号

摘要

In a solid state memory device, codewords stored in a unit of the memory device are decoded using an error correcting iterative decoding process. An average number of iterations needed for successfully decoding codewords of the unit is determined, and the average number of iterations is monitored. The average number of iterations can be taken as a measure of wear of the subject unit.