FILE STORING METHOD, AND STORAGE MEDIUM, COMPUTER SYSTEM USABLE FOR THE FILE STORING METHOD
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United States of America Patent
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Issued Date -
May 15, 2014
app pub date -
Nov 14, 2013
filing date -
Nov 12, 2012
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Abandoned
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Abstract
Provided is a storage media, including a nonvolatile semiconductor storage device, from which data is erasable with certainty on a file-by-file basis so that files leaks are prevented to a maximum possible degree. In a file storing method for storing a file in the storage media including a nonvolatile semiconductor storage device having a plurality of erase blocks each including a plurality of memory cells from which data is erasable as a whole, (a) one file is stored to one erase block, or (b) an overwrite operation of writing prescribed data or random data to a bit of a memory cell, at which a file to be erased is stored, is performed.
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