发明名称 |
Marker-zone to determine gross positioning on a reference surface of a media |
摘要 |
Template patterns in accordance with the present invention can include one or more maker-zones printed to a reference surface of a disk for determining gross-position along a stroke of a read head connected with a rotary actuator. The one or more marker-zones can be printed or otherwise written to a portion of the reference surfaces as one or more pulses. In one embodiment, each pulse can trace the motion of the stroke along at least a portion of the radius of the reference surface. A pulse can identify a marker-zone edge when a di-bit (a transition pair representing a pulse) disappears at some radius from center of the disk. At a radius closer to the center of the disk, the di-bit can abruptly reappear so that the pulse is continued. The interruption in the radial continuity of the magnetized pulse defines the marker-zone and can be any length.
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申请公布号 |
US2005128620(A1) |
申请公布日期 |
2005.06.16 |
申请号 |
US20030733013 |
申请日期 |
2003.12.10 |
申请人 |
EHRLICH RICHARD M.;CALFEE GARY W.;GERASIMOV ANTON;WISEMAN JAMES V. |
发明人 |
EHRLICH RICHARD M.;CALFEE GARY W.;GERASIMOV ANTON;WISEMAN JAMES V. |
分类号 |
G11B5/596;G11B5/86;(IPC1-7):G11B5/09 |
主分类号 |
G11B5/596 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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