发明名称 |
Disk drive apparatus and disk storage medium for high density recording |
摘要 |
<p>A disk drive apparatus is provided that can reproduce data at low bit error rate even if a crosstalk is large. This apparatus comprises means (104,106,109) for writing three or more different states of record marks in a read track and adjacent tracks thereof on a disk storage medium (101), means (104,110) for detecting read levels of the record marks in the read track, means (115) for calculating every possible read level regarding every possible combination of the record marks in the read track and adjacent tracks thereof according to the detected read levels, and means (116) for performing most-liklihood decoding of written data in accordance with the possible read levels as reference levels. <IMAGE></p> |
申请公布号 |
EP0789353(A2) |
申请公布日期 |
1997.08.13 |
申请号 |
EP19970101799 |
申请日期 |
1997.02.05 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD |
发明人 |
HINO, YASUMORI;MIYATAKE, NORIO;BIRUKAWA, MASAHIRO;NAKAMURA, TADASHI |
分类号 |
G11B7/0045;G11B7/005;G11B7/14;G11B20/10;(IPC1-7):G11B7/00;G11B20/14 |
主分类号 |
G11B7/0045 |
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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