发明授权
- 专利标题: Disk drive device and method for error recovery procedure therefor
- 专利标题(中): 磁盘驱动器及其错误恢复方法
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申请号: US12069311申请日: 2008-02-07
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公开(公告)号: US07595955B2公开(公告)日: 2009-09-29
- 发明人: Mirei Hosono , Kazunari Tsuchimoto , Hideki Ohzeki , Tetsuo Ueda , Isao Yoneda , Kazuyuki Ishibashi , Hiroshi Uchida
- 申请人: Mirei Hosono , Kazunari Tsuchimoto , Hideki Ohzeki , Tetsuo Ueda , Isao Yoneda , Kazuyuki Ishibashi , Hiroshi Uchida
- 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
- 代理机构: Townsend and Townsend and Crew LLP
- 代理商 Patrick Duncan
- 优先权: JP2007-027914 20070207
- 主分类号: G11B5/596
- IPC分类号: G11B5/596 ; G11B20/20
摘要:
Embodiments of the present invention help to achieve a read error recovery, and suppress decreases in the capacity of the disk drive device and degradation in performance. In one embodiment, a hard disk drive (HDD) performs following control without use of repeatable run-out (RRO) compensation information on a magnetic disk in a normal reading process. When an error occurs in a normal reading process, the HDD moves a read element to a position different from a target position of the normal reading process. At the position where the read element has been moved, the read element reads out the RRO compensation information. In a recovery procedure for the reading process where the error has occurred, the HDD performs following control with compensation by the servo compensation information read out by the read element.
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