Non-volatile memory and method with control data management

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United States of America Patent

PATENT NO 8239643
APP PUB NO 20120017038A1
SERIAL NO

13244178

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Abstract

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In a nonvolatile memory with block management system, critical data such as control data for the block management system is maintained in duplicates. Various methods are described for robustly writing and reading two copies of critical data in multi-state memory. In another aspect of the invention, a preemptive garbage collection on memory block containing control data avoids an undesirable situation where a large number of such memory blocks need be garbage collected at the same time.

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Patent Owner(s)

  • SANDISK TECHNOLOGIES LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bennett, Alan David Edinburgh, GB 48 3513
Bryce, Alan Douglas Port Kennedy, AU 8 647
Gorobets, Sergey Anatolievich Edinburgh, GB 175 9352

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