发明名称 |
System and method for automatically saving memory contents of a data processing device on power failure |
摘要 |
A system and method for automatically saving the contents of volatile memory in a data processing device on power failure. A secondary power supply is provided, which upon failure of the primary power supply supplies power long enough for all modified information stored in volatile memory to be written to a non-volatile memory device such as NAND flash in an AutoSave procedure. In the preferred embodiment modified sectors in volatile memory are flagged, and only modified sectors with a directory list are written to non-volatile memory during the AutoSave procedure. |
申请公布号 |
EP1643506(A1) |
申请公布日期 |
2006.04.05 |
申请号 |
EP20040104845 |
申请日期 |
2004.10.04 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
MADTER, RICHARD C.;WERDER, KARIN ALICIA;HUANG, WEI YAO |
分类号 |
G11C5/14;G11C11/00;G11C11/4074 |
主分类号 |
G11C5/14 |
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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