发明授权
US07079342B1 Method and apparatus for asymmetry correction in magnetic recording channels 失效
磁记录通道中不对称校正的方法和装置

  • 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
  • 申请号: US10974604
    申请日: 2004-10-27
  • 公开(公告)号: US07079342B1
    公开(公告)日: 2006-07-18
  • 发明人: Ke HanZining Wu
  • 申请人: Ke HanZining 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
Method and apparatus for asymmetry correction in magnetic recording channels
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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