发明授权
- 专利标题: Method of detecting position of head in recording medium drive
- 专利标题(中): 检测记录介质驱动器中磁头位置的方法
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申请号: US11167846申请日: 2005-06-27
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公开(公告)号: US07324295B2公开(公告)日: 2008-01-29
- 发明人: Hironori Teguri , Tsugito Maruyama
- 申请人: Hironori Teguri , Tsugito Maruyama
- 申请人地址: JP Kawasaki
- 专利权人: Fujitsu Limited
- 当前专利权人: Fujitsu Limited
- 当前专利权人地址: JP Kawasaki
- 代理机构: Greer, Burns & Crain, Ltd.
- 优先权: JP2005/055623 20050301
- 主分类号: G11B5/56
- IPC分类号: G11B5/56
摘要:
The difference is detected between the outputs from first and second heads in a recording medium drive. The first head is positioned relative to the boundary between a first recording track and a separation track isolating the first recording track and a second recording track from each other. The second head is positioned relative to the boundary between the separation track and the second recording track. A position information specifying the positions of the first and second heads are generated based on the difference. The first and second heads follow the different boundaries, so that the outputs of the first and second heads reliably vary. The difference between the outputs thus reliably changes. An accurate position information can be generated based on the difference. The position information may be utilized in tracking servo control, for example. This enables establishment of the tracking servo control with a higher accuracy.
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