发明名称 |
SYSTEMS AND METHODS FOR FLY-HEIGHT CONTROL USING SERVO ADDRESS MARK DATA |
摘要 |
Various embodiments of the present invention provide systems and methods for determining fly-height adjustments. For example, various embodiments of the present invention provide storage devices that include a storage medium, a read/write head assembly disposed in relation to the storage medium (278), and a SAM based fly-height adjustment circuit (214). The storage medium (278) includes a plurality of servo data regions (110) that each include a servo address mark (154). The SAM based fly-height adjustment circuit (214) receives the servo address mark (154) from the plurality of servo data regions (110) via the read/write head assembly (276), and calculates a first harmonics ratio (445) based on the received data. The first harmonics ratio (445) is compared with a second harmonics ratio (450) to determine an error (365) in the distance (295) between the read/write head assembly (276) and the storage medium (278). |
申请公布号 |
EP2179417(A4) |
申请公布日期 |
2013.12.18 |
申请号 |
EP20080863082 |
申请日期 |
2008.10.27 |
申请人 |
LSI CORPORATION |
发明人 |
MATHEW, GEORGE;LEE, YUAN, XING;SONG, HONGWEI;GRUNDVIG, JEFFREY, P.;ANNAMPEDU, VISWANATH |
分类号 |
G11B21/02;G11B5/596;G11B5/60;G11B21/10;G11B21/21 |
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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