发明名称 |
Storage device with driver controller providing pattern-dependent write functionality |
摘要 |
<p>A hard disk drive or other storage device comprises a storage medium, awrite head, and control circuitry coupled to the write head. The control circuitry comprises a write driver configured to generate a write signal comprising write pulses responsive to write data, and a driver controller configured to adjust overshoot amplitudes of respective ones of the write pulses utilizing a segmented digital-to-analog converter. The overshoot amplitudes are adjusted by detecting patterns in the write data, decoding a first portion of a base overshoot value to identify a corresponding number of base overshoot segments, combining the base overshoot value and a differential overshoot value, decoding a first portion of the combined base overshoot and differential overshoot values to identify a corresponding number of enhanced overshoot segments, and selecting between the number of base overshoot segments and the number of enhanced overshoot segments responsive to detection of a particular pattern.</p> |
申请公布号 |
EP2851899(A1) |
申请公布日期 |
2015.03.25 |
申请号 |
EP20140175465 |
申请日期 |
2014.07.02 |
申请人 |
LSI CORPORATION |
发明人 |
WILSON, ROSS, S.;BRENDEN, JASON, P.;BRENDEN, JASON;MAZUR, PAUL;CHEN, GANG |
分类号 |
G11B20/10 |
主分类号 |
G11B20/10 |
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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