发明名称 |
SEMICONDUCTOR MEMORY CARD AND COMPUTER READABLE PROGRAM |
摘要 |
The present invention provides a semiconductor memory card which no longer allows an illegal practice of acquiring contents of a deleted file. Here, wh en a deletion event is generated, a deletion handler gives a priority to a null - clear operation of a file entry and a FAT for a file to be deleted over a nu ll- clear operation to other constituents of the file. A null-clear operation to a file entity of the file is distributed to a plurality of event handlers including the deletion handler.
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申请公布号 |
CA2481852(A1) |
申请公布日期 |
2004.08.19 |
申请号 |
CA20042481852 |
申请日期 |
2004.02.04 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
NAKABE, FUTOSHI;KAWANO, SHINJI |
分类号 |
G06F21/00;(IPC1-7):G11C7/00 |
主分类号 |
G06F21/00 |
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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