发明授权
US06738215B2 Method and system for accurate self-servo writing by using relative position between head and writing surface
失效
通过使用头部和书写面之间的相对位置来精确自我伺服写入的方法和系统
- 专利标题： Method and system for accurate self-servo writing by using relative position between head and writing surface
- 专利标题（中）： 通过使用头部和书写面之间的相对位置来精确自我伺服写入的方法和系统
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申请号： US10102817申请日： 2002-03-22
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公开(公告)号： US06738215B2公开(公告)日： 2004-05-18
- 发明人: Masahide Yatsu
- 申请人： Masahide Yatsu
- 优先权： JPP2001-084325 20010323; JPP2001-275592 20010911
- 主分类号： G11B2102
- IPC分类号： G11B2102
摘要：
The magnetic disk apparatus and methods for writing servo data in the magnetic disk drive apparatus detects a relative position between a magnetic head and a writing surface and performs a feedback on the detected relative position for determining the servo data writing position. Based on reference servo patterns that are preliminarily recorded on a portion of at least one surface of the disk, two pairs of head elements, arranged facing respective surfaces of the disk, alternately perform postscript operations of servo patterns while reducing a relative position error between the head and the disk in order to increase writing accuracy of the servo patterns writing operation.
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