发明名称 |
Track pitch correction method and apparatus |
摘要 |
Many parallel tracks on a storage surface of a data handling device are arranged in a longitudinal direction. Each track has a track center comprising reference points for fine lateral positioning. Each successive pair of track centers has a succession of lateral offset distance having an average. Because there are many successive pairs of tracks, there are many average lateral offset distances defining a statistical distribution having a variance.The device includes a laterally movable transducer head and a longitudinally movable data surface. A signal is received from the transducer head while the data surface moves past the head. Many values each indicative of a lateral offset distance between a corresponding pair of lateral reference points are derived from the received signal. These offset-indicative values are used to shift at least some of the latitudinal reference points laterally so as to reduce this variance.
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申请公布号 |
US6751042(B2) |
申请公布日期 |
2004.06.15 |
申请号 |
US20010896491 |
申请日期 |
2001.06.29 |
申请人 |
SEAGATE TECHNOLOGY LLC |
发明人 |
BI QIANG;GOMEZ KEVIN ARTHUR;PANG JIMMY TZEMING;SZITA GABOR |
分类号 |
G11B5/012;G11B5/596;(IPC1-7):G11B5/596;G11B21/02 |
主分类号 |
G11B5/012 |
代理机构 |
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地址 |
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