DATA RANDOMIZATION USING MEMORY BLOCK ACCESS COUNTS
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United States of America Patent
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Issued Date -
Mar 30, 2017
app pub date -
Sep 30, 2015
filing date -
Sep 30, 2015
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Abstract
Method and apparatus for data storage. In some embodiments, a solid-state memory includes an array of non-volatile memory cells arranged into erasable blocks. A register stores a multi-bit sequence value. A controller randomizes input data to be written to a selected erasable block by combining the input data with the multi-bit sequence value shifted by a number of bit locations responsive to an accumulated access count for the selected erasable block.
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