发明名称 |
Information recording medium having an area for recording information indicating logical erasure of data and method for recording information |
摘要 |
There is disclosed an information recording medium having an area for recording data and an area for recording a directory used to manage the recorded data, by providing an area for recording information indicating logical erasure of the unnecessary data. In the information record method of the present invention, when unnecessary data is produced, information indicating the logical erasure of the data is recorded in the area of the information record medium in which the directory is recorded.
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申请公布号 |
US4910724(A) |
申请公布日期 |
1990.03.20 |
申请号 |
US19890372168 |
申请日期 |
1989.06.27 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
SAKAGAMI, WATARU;OGASAWARA, YUTAKA |
分类号 |
G06F17/30;G11B7/004;G11B7/007;G11B27/32 |
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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