Estimation of non-linear distortion in memory devices
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United States of America Patent
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Nov 15, 2011
Grant Date -
May 27, 2010
app pub date -
Aug 27, 2007
filing date -
Aug 27, 2006
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Abstract
A method for operating a memory (24) includes storing data in analog memory cells (32) of the memory by writing respective analog values to the analog memory cells. A set of the analog memory cells is identified, including an interfered cell having a distortion that is statistically correlated with the respective analog values of the analog memory cells in the set. A mapping is determined between combinations of possible analog values of the analog memory cells in the set and statistical characteristics of composite distortion levels present in the interfered memory cell. The mapping is applied so as to compensate for the distortion in the interfered memory cell.
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