发明授权
US5294791A System and a method for controlling position of a magnetic head relative to a servo track of a tape by optical detection of an edge of the tape 失效
系统和通过光学检测带的边缘来控制磁头相对于磁带的伺服磁道的位置的方法

  • 专利标题: System and a method for controlling position of a magnetic head relative to a servo track of a tape by optical detection of an edge of the tape
  • 专利标题(中): 系统和通过光学检测带的边缘来控制磁头相对于磁带的伺服磁道的位置的方法
  • 申请号: US834856
    申请日: 1992-02-13
  • 公开(公告)号: US5294791A
    公开(公告)日: 1994-03-15
  • 发明人: Per O. Pahr
  • 申请人: Per O. Pahr
  • 申请人地址: NOX Oslo
  • 专利权人: Tandberg Data A/S
  • 当前专利权人: Tandberg Data A/S
  • 当前专利权人地址: NOX Oslo
  • 主分类号: G11B5/55
  • IPC分类号: G11B5/55 G11B5/584 G11B15/087 G11B27/36 G01N21/86 G11B5/596
System and a method for controlling position of a magnetic head relative
to a servo track of a tape by optical detection of an edge of the tape
摘要:
A method and apparatus performs the detection of an edge of a tape and further controls the read/write head to position itself relative to the detected edge. An array of photodetectors in an integrated circuit chip senses the intensity of light illuminating the chip with the tape running between the light source and the photodetectors. A light-to-dark transition is formed which is indicative of the edge of the tape.
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