Flash-based memory system with static or variable length page stripes including data protection information and auxiliary protection stripes
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United States of America Patent
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May 10, 2011
Grant Date -
Feb 17, 2011
app pub date -
Dec 23, 2009
filing date -
Aug 11, 2009
priority date (Note) -
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Abstract
Methods and apparatuses for enhanced protection of data stored in a FLASH memory system involve a controller capable of protecting data using page stripes and auxiliary protection stripes. The controller stores the data in a manner such that the pages making up each page stripe include a plurality of data pages and at least one data protection page and the pages making up each auxiliary protection stripe include a plurality of data pages and an auxiliary protection page. At least a plurality of data pages are within one page stripe and one auxiliary protection stripe such that each data page is protected both by a data protection page in the page stripe and an auxiliary protection page in the auxiliary protection stripe.
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