发明名称 |
Optical disk, and method apparatus for recording/reproducing data thereon wherein areas of the disk employ different formats |
摘要 |
A data recording/reproducing optical disk comprises a plurality of land areas and a plurality of groove areas, which are formed in configuration as concentric circles in such a manner that a plurality of tracks are formed on the plurality of land areas and the plurality of groove areas, the plurality of tracks are partitioned into a plurality of zones provided on the disk from the inner side to the outer side thereof and a plurality of sector areas are formed on a track in a continuous manner with the plurality of sector areas on a next track, wherein the disk in use is rotated such that a rotation number of the disk in a zone is sequentially slowed in successive zones toward the outer side of the disk along a radial direction under a condition of a constant product of a rotation number and the number of sector areas in one track in each zone.
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申请公布号 |
US6747942(B1) |
申请公布日期 |
2004.06.08 |
申请号 |
US20000688822 |
申请日期 |
2000.10.17 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
TANOUE KOKI;OSAWA HIDEAKI |
分类号 |
G11B7/007;G11B7/26;G11B20/10;G11B20/12;G11B27/19;G11B27/24;G11B27/30;(IPC1-7):G11B7/24 |
主分类号 |
G11B7/007 |
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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