发明名称 |
Optical disk, and information recording/reproduction apparatus |
摘要 |
In an optical disk having a recording plane having a spiral first track and a spiral second track, information being to be recorded into and/or reproduced from said first and second tracks, the first track is formed into a groove-like shape, the second track is formed between adjacent the first tracks and into a land-like shape, and the first and second tracks record informations in different modulation methods.
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申请公布号 |
US5872750(A) |
申请公布日期 |
1999.02.16 |
申请号 |
US19970955447 |
申请日期 |
1997.10.21 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
SATOH, ISAO |
分类号 |
G11B7/004;G11B7/0045;G11B7/005;G11B7/007;G11B7/013;G11B7/085;G11B7/09;G11B20/12;G11B20/18;G11B27/19;G11B27/24;G11B27/30;G11B27/32;(IPC1-7):G11B17/22 |
主分类号 |
G11B7/004 |
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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