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1. 发明授权

US5319627A Method for managing a defect in an optical disk by assigning logical addresses based upon cumulative number of defects in the disk 失效
标题翻译：用于通过基于盘中的缺陷的累积数量分配逻辑地址来管理光盘中的缺陷的方法
公开(公告)号：US5319627A
公开(公告)日：1994-06-07
申请号：US787202
申请日：1991-11-04
申请人： Atsushi Shinno , Keiji Ueki , Motoyasu Ohno
发明人： Atsushi Shinno , Keiji Ueki , Motoyasu Ohno
IPC分类号： G11B7/007 , G11B20/18 , G11B7/00
CPC分类号： G11B20/1883 , G11B2220/20
摘要： A method for managing a defect in an optical disk employed in a recording/reproducing apparatus. The optical disk includes a data area and a preliminary area. Further, the data area includes sectors for storing data and the preliminary area includes alternate sectors for defective sectors occurring after initialization of the optical disk. In the optical disk, physical addresses are assigned to all of the sectors of the data area and the preliminary area in an ascending order. In contrast, logical addresses are assigned to the sectors in an ascending order skipping the defective sectors detected at the time of the initialization and the sectors of the preliminary area. The method for managing a defect in an optical disk comprises the steps of constructing a table in which a cumulative number of defective sectors detected at the time of the initialization of the optical disk and being present between a starting physical address of the optical disk and a sector subsequent to a defective sector is used as the logical address of the sector subsequent to the defective sector and of converting the logical address of a sector into the physical address thereof by using the table. Thereby even when a defective sector occurs in the optical disk, the logical address of a sector can easily be converted into the physical address thereof.
摘要翻译：一种用于管理在记录/再现装置中使用的光盘中的缺陷的方法。光盘包括数据区和预备区。此外，数据区域包括用于存储数据的扇区，并且预备区域包括在光盘初始化之后出现的缺陷扇区的替代扇区。在光盘中，物理地址以升序分配给数据区域和预备区域的所有扇区。相比之下，逻辑地址以上升顺序分配给扇区，跳过在初始化时检测到的缺陷扇区和初步区域的扇区。用于管理光盘中的缺陷的方法包括以下步骤：构建表格，其中在光盘初始化时检测到的缺陷扇区的累积数目存在于光盘的起始物理地址和使用缺陷扇区之后的扇区作为缺陷扇区之后的扇区的逻辑地址，并且通过使用该表将扇区的逻辑地址转换成其物理地址。由此，即使当在光盘中出现缺陷扇区时，扇区的逻辑地址可以容易地被转换成其物理地址。

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