发明授权
US6067206A Method and apparatus to compensate for servo wedge rotational offset
after a head switch
失效
磁头开关后补偿伺服楔形旋转偏移的方法和装置
- 专利标题： Method and apparatus to compensate for servo wedge rotational offset after a head switch
- 专利标题（中）： 磁头开关后补偿伺服楔形旋转偏移的方法和装置
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申请号： US972655申请日： 1997-11-18
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公开(公告)号： US6067206A公开(公告)日： 2000-05-23
- 发明人: Richard W. Hull , David B. Joan , Charles R. Patton, III , Vafa James Rakshani , Charles W. Simmons
- 申请人： Richard W. Hull , David B. Joan , Charles R. Patton, III , Vafa James Rakshani , Charles W. Simmons
- 申请人地址： CA Irvine
- 专利权人： Western Digital Corporation
- 当前专利权人： Western Digital Corporation
- 当前专利权人地址： CA Irvine
- 主分类号： G11B5/48
- IPC分类号： G11B5/48 ; G11B5/55 ; G11B5/596 ; G11B21/08
摘要：
A disk drive controller having a microprocessor and a sampled signal head positioning system measures and stores the relative rotational offsets between heads arranged in a stacked relationship and respective servo wedges on different disk surfaces. The offsets are stored in a table and subsequently applied to a servo wedge detection circuit to ensure that a next sequential wedge is detected after a head switch.
公开/授权文献
- US4232968A Optical comparator with 3-D image 公开/授权日：1980-11-11
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