发明名称 |
Recording current control method and magnetic disk drive |
摘要 |
In a magnetic disk drive, a writing element and its surrounding area thermally expand due to the heat generated by a write head coil. The transient phenomenon of such thermal expansion may invoke the transient phenomenon of inadequate writing capacity, thereby causing a writing error at an early stage of a write operation. Control is provided which increases/decreases either or both the write current to be applied to a write head and the amount of its overshoot on an individual sector basis during a writing sequence.
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申请公布号 |
US2004184177(A1) |
申请公布日期 |
2004.09.23 |
申请号 |
US20030671806 |
申请日期 |
2003.09.26 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES JAPAN, LTD. |
发明人 |
DOI TAKESHI;SHIMOKOSHI MASAYOSHI;YOSHIDA HITOSHI |
分类号 |
G11B5/09;(IPC1-7):G11B5/02 |
主分类号 |
G11B5/09 |
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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