发明名称 |
Servo writing a disk drive from spiral tracks by shifting a demodulation window an integer number of sync mark intervals |
摘要 |
A method of writing product servo sectors to a disk of a disk drive is disclosed. The disk comprises a plurality of spiral tracks, wherein each spiral track comprises a high frequency signal interrupted by a sync mark at a sync mark interval. The sync marks in the spiral tracks are detected to synchronize a servo write clock used to open a demodulation window during which the high frequency signal in the spiral tracks is demodulated to generate a position error signal for maintaining the head along a first servo track while writing product servo sectors along the first servo track. The demodulation window is then shifted by an integer number of sync mark intervals to initiate a seek to a second servo track. The head is then used to write product servo sectors along the second servo track.
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申请公布号 |
US7248426(B1) |
申请公布日期 |
2007.07.24 |
申请号 |
US20040903522 |
申请日期 |
2004.07.30 |
申请人 |
WESTERN DIGITAL TECHNOLOGIES, INC. |
发明人 |
WEERASOORIYA SIRI S.;LEE TEHRI S. |
分类号 |
G11B21/02 |
主分类号 |
G11B21/02 |
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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