发明名称 |
METHOD AND APPARATUS FOR PREDICTING A HEAD CRASH IN A DISC DRIVE |
摘要 |
<p>A head crash in a hard disc drive is predicted by periodically measuring a head-disc contact energy level on an actuator arm supporting the head and identifying a predetermined change in the energy level between at least two energy level measurements. The head-disc contact energy level is measured by a positioning microactuator on the actuator arm, and comparing that energy level to a threshold established during an earlier or selected contact start- stop cycle. A circuit is coupled to the microactuator and is periodically operable to identify a magnitude of contact energy. An indicator is coupled to the circuit and responsive to the representations to indicate presence of symptoms of an impending crash.</p> |
申请公布号 |
SG153625(A1) |
申请公布日期 |
2009.07.29 |
申请号 |
SG20010079367 |
申请日期 |
2001.12.14 |
申请人 |
SEAGATE TECHNOLOGY LLC |
发明人 |
GAN SAMUEL SWEE CHUAN;CHAI MUI CHONG;THIA TERANG KONG BENG;CHANDRA DJOHNI;TRAN SANH |
分类号 |
G11B5/60;G11B19/04;G11B21/21;(IPC1-7):G11B19/04 |
主分类号 |
G11B5/60 |
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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