发明名称 |
Detecting head/disk contact using timing jitter |
摘要 |
A disk drive that includes a head and a disk. The disk drive also includes a circuit that can detect head/disk contact from a jitter determined from a read signal provided by the head. The jitter may correspond to the time interval between two detected sync marks. Alternatively, the jitter may correspond to a change in frequency of a read clock generated from the read signal. These approaches allow for detection of head movement in a down track direction. Down track is a direction that is essentially parallel with the longitudinal axis of the head.
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申请公布号 |
US2009147390(A1) |
申请公布日期 |
2009.06.11 |
申请号 |
US20070001231 |
申请日期 |
2007.12.10 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
TANG YAWSHING;CHE CARL XIAODONG |
分类号 |
G11B27/36 |
主分类号 |
G11B27/36 |
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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