发明名称 |
PRML (partial response maximum likelihood) information reproducing method and information reproducing apparatus for implementing the same |
摘要 |
An information reproducing method using PRML technology which provides asymmetry compensation and also assures media interchangeability. To compensate for asymmetry, target levels are basically adapted to readout signals and either restriction type (1) (time reversal and level reversal symmetry) or restriction type (2) (time reversal symmetry) is imposed between target levels. As a consequence, asymmetry compensation is made regardless of a readout signal distortion such as mark shift which might deteriorate media interchangeability.
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申请公布号 |
US7440379(B2) |
申请公布日期 |
2008.10.21 |
申请号 |
US20040774587 |
申请日期 |
2004.02.10 |
申请人 |
HITACHI, LTD.;HITACHI-LG DATA STORAGE, INC. |
发明人 |
MINEMURA HIROYUKI;MUKOH MASAKI |
分类号 |
G11B7/005;G11B20/10;G11B7/00;G11B20/14;G11B20/18 |
主分类号 |
G11B7/005 |
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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