发明名称 |
Methods of measuring TPTP of magnetic head and controlling recording current |
摘要 |
A method of measuring the degree of thermal pole tip protrusion (TPTP) of a magnetic head and controlling a recording current in consideration of the degree of TPTP, in relation to a hard disk drive includes measuring the rate of errors contained in data by performing writing and reading operations while changing the level of an overshoot current (OSC), detecting a minimum error rate and a maximum error rate while changing a range of the OSC, and determining the degree of TPTP by measuring the difference between the minimum error rate and the error rate at the maximum OSC.
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申请公布号 |
US2004125478(A1) |
申请公布日期 |
2004.07.01 |
申请号 |
US20030733253 |
申请日期 |
2003.12.12 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM JONG-YOON;YEO CHANG-DONG |
分类号 |
G11B5/09;G11B5/00;G11B5/012;G11B5/40;G11B5/455;G11B21/21;G11B27/36;(IPC1-7):G11B27/36;G11B5/02;G11B21/02 |
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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