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发明授权
US07362664B2 Optical disk medium and method and apparatus for reading information 有权
光盘介质和用于读取信息的方法和装置

Optical disk medium and method and apparatus for reading information
摘要：
An optical disk medium includes a track groove thereon. On the optical disk medium, information is recorded along the track groove on a block unit basis. The block unit has a predetermined length. The block unit having the predetermined length includes a number of sub-blocks that are arranged along the groove. A sub-block mark is provided within each of the sub-blocks and used to identify the sub-block.
摘要（中）：

光盘介质包括其上的轨道槽。 在光盘介质上，以块单位为基础沿轨道槽记录信息。 块单元具有预定长度。 具有预定长度的块单元包括沿着凹槽布置的多个子块。 在每个子块内提供子块标记，并用于识别子块。

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