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1. 发明授权

US08896955B1 Adaptive track follow control 有权
标题翻译：自适应跟踪控制
公开(公告)号：US08896955B1
公开(公告)日：2014-11-25
申请号：US13162095
申请日：2011-06-16
申请人： Min Chen , Alain Chahwan , Shang-Chen Wu , Qixing Zheng , Alexander Babinski , Duc T. Phan
发明人： Min Chen , Alain Chahwan , Shang-Chen Wu , Qixing Zheng , Alexander Babinski , Duc T. Phan
IPC分类号： G11B5/596
CPC分类号： G11B5/59622 , G11B5/59694
摘要： A disk drive comprises a track follow control system having a plurality of selectable frequency modes, the track follow control system configured to receive a position error signal and to output a control signal based on the position error signal, wherein the control signal is used by a head assembly to position a head over a disk. The disk drive also comprises a state estimator configured to receive the control signal and a position signal indicating a position of the head, to estimate a disturbance based on the control signal and the position signal, and to output an estimated disturbance signal based on the estimated disturbance. The disk drive further comprises a disturbance evaluator configured to receive the estimated disturbance signal, and to select one of the frequency modes of the track follow control system based on the estimated disturbance signal.
摘要翻译：磁盘驱动器包括具有多个可选频率模式的轨道跟随控制系统，轨道跟随控制系统被配置为接收位置误差信号并基于位置误差信号输出控制信号，其中控制信号由头部组件以将磁头定位在磁盘上。磁盘驱动器还包括状态估计器，其被配置为接收控制信号和指示头部的位置的位置信号，以基于控制信号和位置信号来估计干扰，并且基于所估计的干扰信号来输出估计的干扰信号骚乱。磁盘驱动器还包括被配置为接收所估计的干扰信号的干扰评估器，并且基于估计的干扰信号选择轨道跟随控制系统的频率模式之一。

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