发明名称 |
Method for selecting an electrical power to be applied to a head-based flying height actuator |
摘要 |
A novel method of selecting an electrical power, to be applied to a subject head-based flying height actuator during operation of a disk drive, is disclosed and claimed. A touch-down power for each of a plurality of representative heads is detected. A relationship between back-off power and touchdown power for the plurality of representative heads is estimated. A touch-down power for the subject head is detected. A back-off power for the subject head is calculated using the estimated relationship and the detected touch-down power for the subject head. The electrical power to be applied to the subject head-based flying height actuator is selected to be equal to the detected touch-down power for the subject head minus the calculated back-off power for the subject head.
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申请公布号 |
US7436620(B1) |
申请公布日期 |
2008.10.14 |
申请号 |
US20070754896 |
申请日期 |
2007.05.29 |
申请人 |
WESTERN DIGITAL (FREMONT), LLC |
发明人 |
KANG SOO-CHOON;SONG LIWEI |
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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