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    • 5. 发明申请
    • Zone based repeated runout error compensation
    • 基于区域的重复跳动误差补偿
    • US20080225654A1
    • 2008-09-18
    • US11724124
    • 2007-03-14
    • Reed D. HansonThomas C. ZirpsPeng YanSamir MittalTimothy F. Ellis
    • Reed D. HansonThomas C. ZirpsPeng YanSamir MittalTimothy F. Ellis
    • G11B7/00
    • G11B5/59627
    • Compensation for repeated runout (RRO) error, such as in a data storage device servo circuit, is preferably carried out by obtaining a population distribution of RRO error values from at least selected ones of a subset of tracks. An RRO error compensation value is determined for each one of the subset of tracks when a variance characteristic of said population distribution meets a selected criterion. Preferably, a first track of a storage medium has a servo field at a first angular position on the medium, a repeated runout (RRO) error compensation field at a second angular position on the medium, and a user data field at a third angular position on the medium. An immediately adjacent second track preferably has a servo field at the first angular position and a user data field at the second angular position in lieu of an RRO error compensation field.
    • 针对重复跳动(RRO)错误的补偿,例如在数据存储设备伺服电路中,优选地通过从轨道子集中的至少选定的RRO误差值获得RRO误差值的总体分布来执行。 当所述人口分布的方差特征满足所选择的标准时,对于轨道子集中的每一个确定RRO误差补偿值。 优选地,存储介质的第一轨道在介质上的第一角度位置处具有伺服磁场,在介质上的第二角位置处的重复跳动(RRO)误差补偿场,以及在第三角位置处的用户数据场 在媒体上 最近相邻的第二轨道优选地具有位于第一角位置处的伺服场,而在第二角位置具有用户数据场,而不是RRO误差补偿场。