发明申请
- 专利标题： MAGNETIC DISK APPARATUS AND MAGNETIC DISK ACCESS CONTROL METHOD
- 专利标题（中）： 磁盘设备和磁盘访问控制方法
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申请号： US12480375申请日： 2009-06-08
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公开(公告)号： US20100020432A1公开(公告)日： 2010-01-28
- 发明人: Mineo Moribe , Masakazu Taguchi , Atsushi Tanaka
- 申请人： Mineo Moribe , Masakazu Taguchi , Atsushi Tanaka
- 申请人地址： JP Kawasaki-shi
- 专利权人： FUJITSU LIMITED
- 当前专利权人： FUJITSU LIMITED
- 当前专利权人地址： JP Kawasaki-shi
- 优先权： JP2008-193190 20080728
- 主分类号： G11B15/18
- IPC分类号： G11B15/18
摘要：
A magnetic disk apparatus includes a magnetic disk provided with a data recording area and a servo-pattern area. The data recording area includes a non-magnetic area scattered with magnetic regions, and the servo-pattern area includes a plurality of magnetic regions each having a larger area than the magnetic regions in the data recording area. The magnetic disk apparatus also includes a reader for reading magnetization in the data recording area and the servo-pattern area, and a magnetizer for application of a magnetic field to the magnetic regions in the servo-pattern area for equalizing magnetization directions of the magnetic regions in the servo-pattern area before the reader starts to read the servo-pattern area.
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