公开(公告)号：WO2004013843A1

公开(公告)日：2004-02-12

申请号：PCT/US2002/040452

申请日：2002-12-18

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： HANSON, Reed ,  ELLIS, Timothy

IPC: G11B5/596

CPC classification number: G11B20/20 ,  G11B5/012 ,  G11B5/5526 ,  G11B5/59605 ,  G11B5/59616 ,  G11B5/59627

Abstract: An apparatus and method for compensation for variation in timing skew in a disc drive having at least one rotating disc is provided. A first head is positioned over a first disc surface and a second head is positioned over a second disc surface. The first disc surface includes a track having a first plurality of sectors and the second disc surface includes a track having a second plurality of sectors. Each sector of the second plurality of the sectors corresponds to a different sector of the first plurality of sectors, thereby forming a plurality of pairs of corresponding sectors. A timing skew value for each pair of corresponding sectors is computed to obtain a sequence of timing skew values (902). Data related to the sequence of timing skew values is utilized to compensate for variation in timing skew (904).

Abstract translation: 提供了一种用于补偿具有至少一个旋转盘的盘驱动器中的定时偏斜变化的装置和方法。 第一头被定位在第一盘表面上，并且第二头位于第二盘表面上方。 第一盘表面包括具有第一多个扇区的轨道，并且第二盘表面包括具有第二多个扇区的轨道。 第二多个扇区的每个扇区对应于第一多个扇区的不同扇区，从而形成多对对应的扇区。 计算每对相应扇区的定时偏移值，以获得定时偏差值序列（902）。 利用与定时偏移值序列相关的数据来补偿定时偏差的变化（904）。