发明名称 |
Life warning generation system and method of semiconductor storage device equipped with flash memory |
摘要 |
A semiconductor storage device is equipped with flash memories each flash memory has a limited size of spare storage area for rewriting data when a write error occurs, and the storage device calculates the remaining size of the spare storage area after the completion of the re-writing, and examines whether or not the remaining size is smaller than a predetermined value, and generates a warning when the remaining size is smaller than the predetermined value, to thereby acknowledge that the life of each flash memory comes close to the end before completely used up.
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申请公布号 |
US6646931(B2) |
申请公布日期 |
2003.11.11 |
申请号 |
US20020096486 |
申请日期 |
2002.03.13 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
MIZOGUCHI SHINICHI;KIMURA MASATOSHI;SHINOHARA TAKAYUKI |
分类号 |
G06F12/16;G06F3/06;G06F3/08;G11C16/02;G11C29/00;G11C29/42;(IPC1-7):G11C7/00 |
主分类号 |
G06F12/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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