发明名称 |
Method and apparatus for indexing hard disks by using a scanning probe |
摘要 |
A method for indexing hard disks by using a scanning probe is disclosed. A hard disk includes several essentially concentric magnetic tracks. A scanning probe is initially positioned at a first point located on a magnetic track to mark the first point as a first radial position index. Then, the scanning probe is positioned at a second point located on the magnetic track to mark the second point as a second radial position index. Next, the scanning probe is positioned at a third point located on the magnetic track to mark the third point as a third radial position index. A rotational center of a co-ordinate system is subsequently calculated according to the three radial position indexes. Finally, the co-ordinate system having the rotational center is utilized as a precise indexing system.
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申请公布号 |
US6600312(B1) |
申请公布日期 |
2003.07.29 |
申请号 |
US20010005946 |
申请日期 |
2001.12.04 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BERGER RUEDIGER FRIEDRICH |
分类号 |
G11B5/00;G11B5/012;G11B5/82;G11B20/18;G11B27/24;G11B27/30;(IPC1-7):G01R33/12 |
主分类号 |
G11B5/00 |
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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