发明名称 |
HEAD POSITIONING METHOD FOR ECCENTRIC TRACK AND HEAD POSITIONING CONTROL DEVICE |
摘要 |
Drive waveforms with which extension and contraction characteristics of an actuator corresponding to a number of track eccentricity amounts are stored as data. By reading servo information written in a disk is obtained as a signal indicating a head displacement amount from a track. The head is moved in a direction in which the track is displaced by obtaining an amplitude corresponding to a slip amount of the head position and a rotation angle of maximum eccentricity, reading drive waveforms which is optimal in driving the actuator from the memory and driving the actuator with a drive waveform matched with the rotation angle at which the eccentricity is maximum.
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申请公布号 |
US2010214686(A1) |
申请公布日期 |
2010.08.26 |
申请号 |
US20100709847 |
申请日期 |
2010.02.22 |
申请人 |
HITACHI HIGH-TECHNOLOGIES CORPORATION |
发明人 |
HIGA KUNIHITO;SAKURAI YOSHIHIRO;YAMAMOTO YUKIO |
分类号 |
G11B5/596 |
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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