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.
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
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