发明授权
- 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
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申请号: US558805申请日: 1995-11-15
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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
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.
公开/授权文献
- US5138847A Refrigerant recovery and processing apparatus and methods 公开/授权日:1992-08-18
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