发明申请
- 专利标题: Distributed servo patterns for data storage media
- 专利标题(中): 用于数据存储介质的分布式伺服模式
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申请号: US12291703申请日: 2008-11-13
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公开(公告)号: US20090073604A1公开(公告)日: 2009-03-19
- 发明人: Douglas W. Johnson , James S. Anderson , David A. Gobran , Denis J. Langlois
- 申请人: Douglas W. Johnson , James S. Anderson , David A. Gobran , Denis J. Langlois
- 主分类号: G11B5/584
- IPC分类号: G11B5/584 ; G11B5/78
摘要:
The invention is directed to a data storage medium that includes a plurality of servo bands distributed across the data storage medium and a plurality of data tracks positioned between each of the plurality of distributed servo bands. The data storage medium comprises a servo band pitch of less than 200 micrometers. The large number of servo bands distributed across the data storage medium with a relatively small servo band pitch reduces the influence of media dimensional instability. In this way, the invention may substantially increase data read head positioning accuracy, especially in the case of narrow track widths. A read head array arranged in a two-dimensional matrix that includes a first servo read head, a second servo read head, and a plurality of data read heads positioned between the first and second servo read heads may be applied to a data storage medium as described herein.
公开/授权文献
- US07889454B2 Distributed servo patterns for data storage media 公开/授权日:2011-02-15
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