Techniques for increasing a lifetime of blocks of memory
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United States of America Patent
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Dec 25, 2012
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N/A
app pub date -
Mar 7, 2011
filing date -
Nov 19, 2007
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Abstract
Techniques are described for increasing a lifetime of blocks of memory. In operation, respective life expectancy scores for each of the blocks are calculated based at least in part on a respective number of times each of the blocks is respectively erased, and further based at least in part on at least one other factor that affects the lifetime of the blocks. An order to write and recycle the blocks is determined, based at least in part on at least some of the respective lifetime expectancy scores. A total amount of the blocks that are erased and written is minimized while lifetime expectancy score variation between the blocks is equalized.
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