公开(公告)号：US5886846A

公开(公告)日：1999-03-23

申请号：US655916

申请日：1996-05-31

申请人： Ich Pham ,  David Drouin ,  Evelyn Howard

发明人： Ich Pham ,  David Drouin ,  Evelyn Howard

IPC分类号： G11B5/55 ,  G11B5/596 ,  G11B21/08 ,  G11B21/10

CPC分类号： G11B21/106 ,  G11B21/083 ,  G11B5/5534 ,  G11B5/59627 ,  G11B5/5547

摘要： A method for applying an optimal seeking technique to a disk file with excessive repeatable runout includes a method of modifying a control signal for a rotary actuator arm of a disk drive. The control signal is modified during track seeking by adding a runout state that is calculated each time a servo sector of a target data track on a surface of a disk is sampled by read/write heads carried by the actuator arm. A calibration algorithm can be used during track following to determine runout magnitude and runout phase at various preselected calibration tracks on the surface of the disk. A seeking algorithm can be implemented to compensate for the relative runout magnitude and phase variations between present and target tracks.

摘要翻译： 对具有过度可重复跳动的盘文件应用最佳寻找技术的方法包括修改磁盘驱动器的旋转执行器臂的控制信号的方法。 通过添加每当通过由致动器臂承载的读/写头来对盘表面上的目标数据轨道的伺服扇区进行采样时计算出的跳动状态，在跟踪寻找期间修改控制信号。 轨道跟踪期间可以使用校准算法来确定磁盘表面上各种预选校准轨迹的跳动幅度和跳动相位。 可以实现搜索算法来补偿当前和目标轨道之间的相对跳动幅度和相位变化。