- 专利标题: Magnetic tape medium servo pattern writing method using single coil multi-gap write head
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申请号: US15264358申请日: 2016-09-13
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公开(公告)号: US09830943B2公开(公告)日: 2017-11-28
- 发明人: Giovanni Cherubini , Johan B. C. Engelen , Simeon Furrer , Mark A. Lantz
- 申请人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 申请人地址: US NY Armonk
- 专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址: US NY Armonk
- 代理机构: Cantor Colburn LLP
- 优先权: GB1211473.2 20120628
- 主分类号: G11B20/12
- IPC分类号: G11B20/12 ; G11B5/265 ; G11B5/17 ; G11B15/087 ; G11B5/584 ; G11B5/78 ; G11B5/008 ; G11B5/592
摘要:
A method for writing a servo pattern to a magnetic tape medium includes orienting a magnetic flux in opposite directions across gaps in the magnetic tape medium, and moving the magnetic tape medium with its servo band above two gaps in a direction along a longitudinal extension of the magnetic tape medium. The magnetic tape medium includes a servo band along the longitudinal extension of the magnetic tape medium and a servo pattern organized in a servo frame with a first burst having at least two servo stripes, and a second burst having at least two servo stripes. For at least one of the first and second bursts, different stripes within a same burst have opposite magnetic polarities with respect to one another. The method further includes applying a current pulse to the coil, moving the magnetic tape medium, and applying another current pulse to the coil.
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