发明名称 |
ACCESS DEVICE, INFORMATION RECORDING DEVICE, INFORMATION RECORDING SYSTEM, FILE MANAGEMENT METHOD, AND PROGRAM |
摘要 |
An information recording device, which includes a nonvolatile memory whose areas are managed using an FAT file system and enhances the reliability of directory entries using a cyclic shift checksum, recalculates the cyclic shift checksum efficiently and performs seeking at a higher speed. A nonvolatile memory (25) of an information recording device 2 is managed using an FAT file system. In the memory, a plurality of directory entries are allocated to a single file. The device enhances the reliability of the directory entries using a cyclic shift checksum, and manages information indicating the position and the size of a storage area of file data using an extent information entry (203). The device further uses an update information entry (204) and a dummy entry (205). |
申请公布号 |
US2011022645(A1) |
申请公布日期 |
2011.01.27 |
申请号 |
US20090934334 |
申请日期 |
2009.04.01 |
申请人 |
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发明人 |
MAEDA TAKUJI;INOUE SHINJI |
分类号 |
G06F17/30 |
主分类号 |
G06F17/30 |
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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