发明名称 |
Adaptive dampening of thermal asperity events in disc drives |
摘要 |
A method for the adaptive dampening of a peak amplitude of a thermal asperity signal in a disc drive to minimize loss of read data integrity, including the steps of determining a peak-to-peak preamble signal amplitude for identifying an amplitude signal range of the peak amplitude of the thermal asperity signal; measuring the peak amplitude of the thermal asperity signal; separating the peak-to-peak preamble signal amplitude into substantially even portions for use in calculating a value of the amplitude signal range of the peak amplitude of the thermal asperity signal; calculating the value of the amplitude signal range of the peak amplitude of the thermal asperity signal for use in determining a dampening resistance used by a dampening circuit to adaptively dampen the peak amplitude of the thermal asperity signal; and activating the dampening circuit to dampen the peak amplitude of the thermal asperity signal.
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申请公布号 |
US6724550(B2) |
申请公布日期 |
2004.04.20 |
申请号 |
US20010955621 |
申请日期 |
2001.09.19 |
申请人 |
SEAGATE TECHNOLOGY LLC |
发明人 |
LIM ENG HOCK;KO BENG THEAM;TEO HWEEPENG;CHONG FONG KHEON;NGWE MYINT;GAN KAH LIANG |
分类号 |
G11B5/012;G11B5/09;G11B20/24;(IPC1-7):G11B5/02 |
主分类号 |
G11B5/012 |
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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