Patent ID: 8533563
Filing Date: 2013-09-10
Classification: G06F,G11C

Abstract:
1. A memory system comprising: a plurality of memory cells for storing payload data and redundancy data; a read-out circuit configured to read-out a status of the plurality of memory cells, the read-out status comprising payload data, redundancy data and associated reliability information; and a data processor configured to derive the payload data from the read-out status using the reliability information; wherein the read-out circuit comprises a plurality of sense amplifiers configured to sense memory cells and wherein the read-out circuit is configured to read-out a status of a memory cell by a comparison of an output of a sense amplifier to a threshold; wherein the read-out circuit is configured to sequentially change a word-line voltage according to a predetermined manner and wherein the read-out circuit is configured to read-out a status of a memory cell by determining an output of the sense amplifier dependent on the word-line voltage at a time being dependent on the comparison; and wherein the predetermined manner is based on an age of the memory cell.