发明授权
US07486457B2 Method and apparatus for predicting write failure resulting from flying height modulation
失效
用于预测由飞行高度调制产生的写入故障的方法和装置
- 专利标题： Method and apparatus for predicting write failure resulting from flying height modulation
- 专利标题（中）： 用于预测由飞行高度调制产生的写入故障的方法和装置
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申请号： US10077390申请日： 2002-02-15
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公开(公告)号： US07486457B2公开(公告)日： 2009-02-03
- 发明人: David H. Jen , Mike Suk
- 申请人： David H. Jen , Mike Suk
- 申请人地址： NL
- 专利权人： Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人： Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人地址： NL
- 代理机构： Chambliss, Bahner & Stophel, P.C.
- 代理商 David W. Lynch
- 主分类号： G11B27/36
- IPC分类号： G11B27/36 ; G11B5/02
摘要：
A method and apparatus for predicting write failure resulting from flying height modulation and initiating re-writing of data upon occurrence of the predicted write failure is disclosed. According to the present invention, if the slider or transducer flying height modulates during the write process, such modulation is detected, and a rewrite of the same data is forced. A write reassign may be initiated when a thermal signal exceeding the predetermined threshold is detected during the rewrite and/or a read/verify may be initiated after the rewrite.
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