发明授权
US07804659B2 Method and apparatus for positioning head using spiral servo pattern in a disk drive
有权
在磁盘驱动器中使用螺旋伺服模式定位磁头的方法和装置
- 专利标题： Method and apparatus for positioning head using spiral servo pattern in a disk drive
- 专利标题（中）： 在磁盘驱动器中使用螺旋伺服模式定位磁头的方法和装置
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申请号： US11942486申请日： 2007-11-19
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公开(公告)号： US07804659B2公开(公告)日： 2010-09-28
- 发明人: Toshitaka Matsunaga , Masahide Yatsu , Hideo Sado , Katsuki Ueda , Shouji Nakajima , Seiji Mizukoshi , Shinichirou Kouhara
- 申请人： Toshitaka Matsunaga , Masahide Yatsu , Hideo Sado , Katsuki Ueda , Shouji Nakajima , Seiji Mizukoshi , Shinichirou Kouhara
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 代理机构： Pillsbury Winthrop Shaw Pittman, LLP
- 优先权： JP2006-350014 20061226
- 主分类号： G11B21/02
- IPC分类号： G11B21/02
摘要：
According to one embodiment, there is to provide a disk drive which calculates an error in the position of a head on the basis of concentric servo patterns. The disk drive has a disk medium on which spiral servo patterns are recorded and a read head which reads the spiral servo patterns from the disk medium. A servo controller reproduces a hexagonal burst signal from the spiral servo patterns read by the read head to generate position data associated with servo burst signals. The CPU uses the position data to perform a position error calculation.
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