公开(公告)号：US07265933B1

公开(公告)日：2007-09-04

申请号：US11152415

申请日：2005-06-14

申请人： Bang X. Phan ,  David Dung Tien Nguyen ,  Zhi Wang

发明人： Bang X. Phan ,  David Dung Tien Nguyen ,  Zhi Wang

IPC分类号： G11B5/596 ,  G11B5/55

CPC分类号： G11B5/59627

摘要： A disk drive is disclosed comprising a voice coil motor (VCM) for rotating an actuator arm about a pivot in order to actuate a head over a disk. The disk is rotated by a spindle motor, and a feed-forward compensation value is computed that compensate for a non-centric alignment of the disk with respect to the spindle motor. During a calibration mode, the VCM is controlled to press the actuator arm against a crash stop, and the feed-forward compensation value is computed in response to a position error signal (PES). The PES is generated in response to embedded servo sectors recorded on the disk, wherein each embedded servo sector comprises a track address for coarse alignment and servo bursts for fine alignment.

摘要翻译： 公开了一种磁盘驱动器，其包括音圈电机（VCM），用于围绕枢轴旋转致动器臂，以便在磁盘上驱动磁头。 磁盘由主轴电动机旋转，并且计算前馈补偿值，其补偿盘相对于主轴电机的非中心对准。 在校准模式期间，VCM被控制以将致动器臂压向紧急停止，并且响应于位置误差信号（PES）来计算前馈补偿值。 响应于记录在盘上的嵌入式伺服扇区产生PES，其中每个嵌入式伺服扇区包括用于粗略对准的轨道地址和用于精细对准的伺服脉冲串。