发明名称 |
Disk incremental rewrite. |
摘要 |
<p>A transducer head on a disk drive apparatus is offset about an expected center of a data track as indicated by servo information not included in the data track. If data does not have a predetermined level of readability, the head is known to be shifted with respect to the track. The data is then incrementally read and rewritten in a track centered about its expected center as indicated by the servo information. The amount of data incrementally rewritten at one time is a function of the disk characteristics and the amount of resources available to temporarily store the data. If more than one track appears shifted with respect to the head, the order of rewriting the tracks is selected to minimize risk of overlapping the tracks during the writing. </p> |
申请公布号 |
EP0220382(A2) |
申请公布日期 |
1987.05.06 |
申请号 |
EP19860109502 |
申请日期 |
1986.07.11 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BAKKEN, KIRBY LYNN;JUDSON, ROBERT GEORGE;MILLER, WILLIAM EDWARD;PETERSON, RONALD ALLAN |
分类号 |
G11B5/012;G11B20/18;G11B21/10 |
主分类号 |
G11B5/012 |
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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