发明授权
- 专利标题: Method and apparatus for asymmetry correction in magnetic recording channels
- 专利标题(中): 磁记录通道中不对称校正的方法和装置
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申请号: US10974604申请日: 2004-10-27
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公开(公告)号: US07079342B1公开(公告)日: 2006-07-18
- 发明人: Ke Han , Zining Wu
- 申请人: Ke Han , Zining Wu
- 申请人地址: BM Hamilton
- 专利权人: Marvell International Ltd.
- 当前专利权人: Marvell International Ltd.
- 当前专利权人地址: BM Hamilton
- 主分类号: G11B5/09
- IPC分类号: G11B5/09
摘要:
Asymmetry correction for an MR read head in a magnetic recording channel employs an exponential function to correct MR read head asymmetry. The asymmetry correction function has the form ƒASC(y)=y−q(eay+e−ay−2), wherein a is a parameter that can be adjusted for optimal channel performance, and q is an asymmetry correction coefficient.
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