发明名称 |
Magnetic disc having physical servo patterns with a magnetic carrier, and method of making and using the same |
摘要 |
A magnetic medium comprises a magnetic disc having a read surface that has a plurality of tracks, at least some having servo sectors. The servo sectors comprise a plurality of magnetic irregularities, such as pits or regions of reduced magnetic coercivity, arranged in a servo pattern along the servo sector at a servo frequency. A magnetic pattern is recorded in the disc along the servo sector at a high carrier frequency. A process for manufacturing the servo pattern and for recovering servo data from the servo pattern are also described.
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申请公布号 |
US2001036030(A1) |
申请公布日期 |
2001.11.01 |
申请号 |
US20000726786 |
申请日期 |
2000.11.30 |
申请人 |
SACKS ALEXEI H.;ELLIS TIMOTHY F.;KORKOWSKI PATRICK J.;BELSER KARL A. |
发明人 |
SACKS ALEXEI H.;ELLIS TIMOTHY F.;KORKOWSKI PATRICK J.;BELSER KARL A. |
分类号 |
G11B5/596;G11B5/74;G11B5/82;G11B21/02;(IPC1-7):G11B21/02 |
主分类号 |
G11B5/596 |
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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