发明名称 |
Semiconductor memory card access apparatus, a computer-readable recording medium, an initialization method, and a semiconductor memory card |
摘要 |
A predetermined number of erasable blocks positioned at a start of a volume area in a semiconductor memory card are provided so as to include volume management information. A user area following the volume management information includes a plurality of clusters. A data length NOM of an area from a master boot record & partition table sector to a partition boot sector is determined so that the plurality of clusters in the user area are not arranged so as to straddle erasable block boundaries. Since cluster boundaries and erasable block boundaries in the user area are aligned, there is no need to perform wasteful processing in which two erasable blocks are erased to rewrite one cluster. |
申请公布号 |
US8176239(B2) |
申请公布日期 |
2012.05.08 |
申请号 |
US201113191921 |
申请日期 |
2011.07.27 |
申请人 |
MAEDA TAKUJI;HIROTA TERUTO;PANASONIC CORPORATION |
发明人 |
MAEDA TAKUJI;HIROTA TERUTO |
分类号 |
G06F12/00;G06F12/14;G06F3/06;G06F12/02;G06F21/24;G11B20/00;G11B20/12 |
主分类号 |
G06F12/00 |
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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