发明授权
US5652746A Electronic track detection methods for apparatus for simultaneously reading multiple adjacent tracks of an optical disk 失效
用于同时读取光盘的多个相邻轨道的装置的电子轨迹检测方法

  • 专利标题: Electronic track detection methods for apparatus for simultaneously reading multiple adjacent tracks of an optical disk
  • 专利标题(中): 用于同时读取光盘的多个相邻轨道的装置的电子轨迹检测方法
  • 申请号: US558805
    申请日: 1995-11-15
  • 公开(公告)号: US5652746A
    公开(公告)日: 1997-07-29
  • 发明人: Arie Heiman
  • 申请人: Arie Heiman
  • 申请人地址: NLX Curacao
  • 专利权人: Zen Research N.V.
  • 当前专利权人: Zen Research N.V.
  • 当前专利权人地址: NLX Curacao
  • 主分类号: G11B7/005
  • IPC分类号: G11B7/005 G11B7/09 G11B7/14 G11B21/00 G11B7/00
Electronic track detection methods for apparatus for simultaneously
reading multiple adjacent tracks of an optical disk
摘要:
Methods and apparatus are provided for simultaneously tracking multiple data tracks of an optical disk using a detector matrix formed of a plurality of pixels. Based on track pitch, pixel pitch and predetermined point spread functions of the pixels, a series of simultaneous equations based on sampled pixel data is generated and solved to determine an offset distance between a selected pixel and a selected track and corrected values of the sampled pixel data. Alternatively, the series of equations may be generated, based on sample pixel readout values and a series of weighting coefficients, such that solution of the equations enables the position of a selected track may be determined.
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