发明名称 |
Off-track PES calibration for a magneto-resistive element |
摘要 |
A method and apparatus for creating a position error signal (PES) voltage v. track distance curve for the head of a hard disk drive. The disk has a dedicated track which contains a plurality of servo bits that allow the head to be centered with the centerline of the track. The dedicated track also has a number of calibration bits each embedded at a known location off-set from the track centerline. The PES voltage v. track distance curve is generated by reading each calibration bit and storing the corresponding amplitude of the position error signal in a memory device of the disk drive. Each calibration bit is located from the track centerline a distance that is different from the other calibration bits so that there are provided multiple points on the track curve.
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申请公布号 |
US5867353(A) |
申请公布日期 |
1999.02.02 |
申请号 |
US19960706441 |
申请日期 |
1996.08.30 |
申请人 |
MAXTOR CORPORATION |
发明人 |
VALENT, JAMES A. |
分类号 |
G11B5/035;G11B5/48;G11B5/55;G11B5/596;G11B21/08;(IPC1-7):G11B5/596 |
主分类号 |
G11B5/035 |
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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