Method and apparatus for performing wear leveling in memory
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United States of America Patent
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Oct 23, 2012
Grant Date -
Jul 22, 2010
app pub date -
Apr 28, 2008
filing date -
Jul 5, 2007
priority date (Note) -
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Abstract
A method for performing wear leveling in a memory, and an apparatus corresponding to the method, is provided. The method includes: dividing the lifecycle of the memory which includes more than one physical blocks into at least one sampling interval; for each sampling interval, getting the first physical block by taking statistics of the degree of the wear leveling of each physical block in the memory in the current sampling interval; getting the second physical block by taking statistics of the updating times of each logical address in the current sampling interval; exchanging the logical addresses and data of the first physical block and the second physical block.
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