发明名称 Magnetic disk drive
摘要 To improve the track density by reducing the discontinuity of servo patterns to be generated by a servo track writer, some servo areas existing in one circuit of a magnetic disk are formed at the consecutive first and second circuits of a servo track writer by averaging a plurality of position signals detected from servo patterns at the first and second circuits of the magnetic disk.
申请公布号 US6760172(B1) 申请公布日期 2004.07.06
申请号 US20000616073 申请日期 2000.07.13
申请人 HITACHI, LTD. 发明人 HAMAGUCHI TAKEHIKO;ZAITSU HIDEKI;TOMIYAMA FUTOSHI
分类号 G11B5/596;G11B21/10;(IPC1-7):G11B5/09 主分类号 G11B5/596
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