发明授权
US06989956B2 Head position control method, disk device, and servo track write method
有权
磁头位置控制方法，磁盘装置和伺服磁道写入方式
- 专利标题： Head position control method, disk device, and servo track write method
- 专利标题（中）： 磁头位置控制方法，磁盘装置和伺服磁道写入方式
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申请号： US10452116申请日： 2003-06-02
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公开(公告)号： US06989956B2公开(公告)日： 2006-01-24
- 发明人: Kazuhiko Takaishi , Takeyori Hara
- 申请人： Kazuhiko Takaishi , Takeyori Hara
- 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： JP2002-195037 20020703
- 主分类号： G11B5/596
- IPC分类号： G11B5/596
摘要：
A head position control method performs virtual circular control which does not follow the eccentricity of a disk, and implements high precision virtual circular control, even if the servo signals of an area demodulation method are used. The method performs virtual circular control by demodulating position signals in the area demodulation method and calculates the demodulation position with the velocity offset correction of 2-phase servo signals by using both the head velocity V of the virtual circular orbit reference and the relative velocity ΔV of the virtual circular orbit and the position signal.
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