发明名称 |
Method and apparatus for adaptive tuning bias current for magnetoresistive head |
摘要 |
A bias current for a magnetoresistive read head is selected by defining a tuning range based on a maximum and a minimum bias current value for the head. A plurality of read operations are iteratively performed using a different bias current value over the tuning range for each iteration. The results of each read iteration are measured and a bias current is selected on the basis of the read error rates, and particularly those bias currents associated with the lowest read error rate.
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申请公布号 |
US6512647(B1) |
申请公布日期 |
2003.01.28 |
申请号 |
US20000550370 |
申请日期 |
2000.04.14 |
申请人 |
SEAGATE TECHNOLOGY LLC |
发明人 |
QUAK BENG WEE;LIM BERNARD TUANG LIANG;NGWE MYINT;TEO SONG WEE;KO BENG THEAM |
分类号 |
G11B5/00;G11B5/012;G11B5/035;G11B5/09;G11B20/10;(IPC1-7):G11B5/03 |
主分类号 |
G11B5/00 |
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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