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发明公开
CN101436410A 消除硬盘驱动器不规则磁轨形成的干扰的方法 无效 - 撤回

消除硬盘驱动器不规则磁轨形成的干扰的方法
摘要：
本发明公开了一种消除硬盘驱动器不规则磁轨形成的干扰的方法，包括以下步骤：A.在硬盘驱动器出厂测试中将每个位置的磁轨的扰动痕迹以数字的形式嵌入到每个位置的伺服信号中；B.在硬盘使用中，伺服系统将磁头读出的位置值与已嵌入伺服信号中该位置的磁轨的扰动痕迹的值相减，得到磁头实际需要跟踪的位置值。本发明由于在硬盘驱动器出厂测试中将每个位置的磁轨的扰动痕迹以数字的形式嵌入到每个位置的伺服信号中，所以在硬盘使用中，伺服系统可以将磁头读出的位置值与已嵌入伺服信号中该位置的磁轨的扰动痕迹的值相减，得到磁头实际需要跟踪的位置值。这样就近似地补偿了磁轨的扰动痕迹所带来的影响。
摘要（英）：

The invention discloses a method for eliminating interference caused by irregular tracks of a hard disk drive, which comprises the following steps: A, embedding perturbation traces of a track at each position to a servo signal of each position in the form of numbers in a factory-leaving test for the hard disk drive; and B, in the use of the hard disk drive, subtracting a position value read out by a magnetic head with the value of the perturbation traces of the track at the position embedded in the servo signal by a servo system so as to obtain the position value actually needing tracking by the magnetic head. Because the perturbation traces of the track at each position are embedded to the servo signal of each position in the form of numbers in the factory-leaving test for the hard disk drive, in the use of the hard disk drive, the servo system can subtract the position value read out by the magnetic head with the value of the perturbation traces of the track at the position embedded in the servo signal so as to obtain the position value actually needing tracking by the magnetic head. Thus, the influence caused by the perturbation traces of the track is approximately compensated.

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