发明申请
US20110075286A1 SYSTEM, METHOD AND APPARATUS FOR DETERMINING TRACK PITCH IN A HARD DISK DRIVE TO SATISFY THE REQUIREMENTS OF BOTH OFF-TRACK CAPACITY AND ADJACENT TRACK ERASURE
有权
用于确定硬盘驱动器中的轨迹的系统，方法和装置，以满足两个关闭能力和相邻轨迹擦除的要求
- 专利标题： SYSTEM, METHOD AND APPARATUS FOR DETERMINING TRACK PITCH IN A HARD DISK DRIVE TO SATISFY THE REQUIREMENTS OF BOTH OFF-TRACK CAPACITY AND ADJACENT TRACK ERASURE
- 专利标题（中）： 用于确定硬盘驱动器中的轨迹的系统，方法和装置，以满足两个关闭能力和相邻轨迹擦除的要求
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申请号： US12567262申请日： 2009-09-25
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公开(公告)号： US20110075286A1公开(公告)日： 2011-03-31
- 发明人: Shanlin Duan , Zhen Jin , Jane Jie Zhang , Kezhao Zhang
- 申请人： Shanlin Duan , Zhen Jin , Jane Jie Zhang , Kezhao Zhang
- 申请人地址： NL Amsterdam
- 专利权人： Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人： Hitachi Global Storage Technologies Netherlands B.V.
- 当前专利权人地址： NL Amsterdam
- 主分类号： G11B27/36
- IPC分类号： G11B27/36
摘要：
Track pitch in a hard disk drive is selected to satisfy the requirements of both off-track capacity (OTC) and adjacent track interference (ATI). The invention separately measures the track pitch requirements for OTC and ATI. The track pitch for the drive is set with the larger of the OTC and ATI track pitches. The OTC track pitch is measured with a 747 curve, and the ATI track pitch is measured by the positions of adjacent tracks at which the on-track error rate is not worse than a given value after the targeted number of adjacent track writes in the ATI requirement.