发明授权
US08780477B1 Disk drive adjusting servo timing to compensate for transient when crossing a servo zone boundary
有权
磁盘驱动器调整伺服定时,以补偿穿过伺服区域边界时的瞬态
- 专利标题: Disk drive adjusting servo timing to compensate for transient when crossing a servo zone boundary
- 专利标题(中): 磁盘驱动器调整伺服定时,以补偿穿过伺服区域边界时的瞬态
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申请号: US13529904申请日: 2012-06-21
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公开(公告)号: US08780477B1公开(公告)日: 2014-07-15
- 发明人: Wei Guo , Michael Chang , Guoxiao Guo , Jie Yu
- 申请人: Wei Guo , Michael Chang , Guoxiao Guo , Jie Yu
- 申请人地址: US CA Irvine
- 专利权人: Western Digital Technologies, Inc.
- 当前专利权人: Western Digital Technologies, Inc.
- 当前专利权人地址: US CA Irvine
- 主分类号: G11B5/09
- IPC分类号: G11B5/09
摘要:
A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of servo sectors defining a plurality of servo tracks, wherein the servo tracks form a plurality of servo zones, and a servo data rate of servo sectors in a first servo zone is different than a servo data rate of servo sectors in a second servo zone. A disk locked clock is synchronized to the data rate of the servo sectors in the first servo zone, wherein the disk locked clock for generating a timing window relative to the servo sectors. When the head crosses from the first servo zone to the second servo zone, at least one of the disk locked clock and the timing window is adjusted to compensate for a timing transient.