Efficient readout from analog memory cells using data compression
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United States of America Patent
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Jul 24, 2012
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Mar 4, 2009
filing date -
Mar 7, 2008
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Abstract
A method for data storage includes storing data in a group of analog memory cells by writing respective input storage values to the memory cells in the group. After storing the data, respective output storage values are read from the analog memory cells in the group. Respective confidence levels of the output storage values are estimated, and the confidence levels are compressed. The output storage values and the compressed confidence levels are transferred from the memory cells over an interface to a memory controller.
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