发明授权
- 专利标题: Optical servo system for magnetic disk
- 专利标题(中): 光盘伺服系统
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申请号: US539625申请日: 1990-06-18
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公开(公告)号: US5121371A公开(公告)日: 1992-06-09
- 发明人: Stephen W. Farnsworth , Scott D. Wilson
- 申请人: Stephen W. Farnsworth , Scott D. Wilson
- 申请人地址: CO Boulder
- 专利权人: Bernoulli Optical Systems Company
- 当前专利权人: Bernoulli Optical Systems Company
- 当前专利权人地址: CO Boulder
- 主分类号: G11B7/095
- IPC分类号: G11B7/095 ; G11B5/596 ; G11B5/82 ; G11B13/04 ; G11B21/08 ; G11B21/10
摘要:
Coherent light passing through slits produces an optical interference pattern having a fringe spacing related to the spacing of the servo tracks on a magnetic disk. The convolution of the interference pattern with the servo tracks generates a quadrature servo error signal.
公开/授权文献
- US5741222A Ankle joint support 公开/授权日:1998-04-21
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