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11. 发明授权

US08023221B1 Position gain calibration in disk drives 有权
标题翻译：磁盘驱动器中的位置增益校准
公开(公告)号：US08023221B1
公开(公告)日：2011-09-20
申请号：US12271382
申请日：2008-11-14
申请人： Makoto Horisaki
发明人： Makoto Horisaki
IPC分类号： G11B5/596
CPC分类号： G11B5/59622 , G11B5/5534
摘要： A system including a signal generating module and a position control module. The signal generating module generates position error signals based on servo bursts read from a servo region of a track of a disk drive. The servo bursts are read by a head of the disk drive and include first, second, third, and fourth servo bursts. The position control module generates differences between the position error signals and determines a position of the head relative to the track based on (i) a first difference of the differences and (ii) a second difference of the differences. The first difference is based on the first servo burst and the second servo burst. The second difference is based on (i) the third servo burst and (ii) the first servo burst or the second servo burst and is independent of the fourth servo burst.
摘要翻译：一种包括信号发生模块和位置控制模块的系统。信号产生模块基于从磁盘驱动器的轨道的伺服区域读取的伺服突发生成位置误差信号。伺服脉冲串由磁盘驱动器的磁头读取，并且包括第一，第二，第三和第四伺服脉冲串。位置控制模块基于（i）差异的第一差异和（ii）差异的第二差异，产生位置误差信号之间的差异并确定头相对于轨道的位置。第一个差异是基于第一个伺服脉冲串和第二个伺服脉冲串。第二个差异是基于（i）第三伺服脉冲串和（ii）第一伺服脉冲串或第二伺服脉冲串，并且独立于第四伺服脉冲串。

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