发明名称 |
Reducing spiral write time and clock track drift while writing spiral reference patterns to a disk of a disk drive |
摘要 |
Disclosed is a method for reducing spiral write time and clock reference drift while writing spiral reference patterns on a disk of a disk drive. The method includes: controlling a radial location of a head for writing a first band of tracks near one of an outer diameter (OD) circumference of the disk or an inner diameter (ID) circumference of the disk and for writing a second band of tracks near the other of the OD circumference of the disk or the ID circumference of the disk, respectively, wherein a substantial majority of the tracks each include a plurality of servo sectors including a track number and a sync mark; measuring a distance between first and second reference center positions of reference center tracks of the first and second bands of tracks; and writing a spiral reference pattern therebetween.
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申请公布号 |
US7145744(B1) |
申请公布日期 |
2006.12.05 |
申请号 |
US20050196076 |
申请日期 |
2005.08.03 |
申请人 |
WESTERN DIGITAL TECHNOLOGIES, INC. |
发明人 |
CLAWSON WILLIAM W.;HUGUNIN TOMAS D. |
分类号 |
G11B21/02;G11B5/09 |
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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