发明名称 |
Reproducing apparatus for reproducing information from a recording medium with pit edges shifted in a step-wise fashion |
摘要 |
In an information recording medium from which information recorded on each pit is reproduced by an optical detection system that obtains a reproduced signal corresponding to each pit by scanning the information recording medium along pit rows by a light beam, data of high recording density can be accurately reproduced by a simple arrangement by shifting in a step-wise fashion edge positions of an information pit from a predetermined reference position in response to digital information to be recorded within a range corresponding to a predetermined shift period smaller than a transition period of a reproduced signal determined in response to a transfer characteristic of the optical detection system. Therefore, a nonlinear intersymbol interference can be reduced without emphasizing a noise component.
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申请公布号 |
US5557592(A) |
申请公布日期 |
1996.09.17 |
申请号 |
US19950445571 |
申请日期 |
1995.05.31 |
申请人 |
SONY CORPORATION |
发明人 |
KOBAYASHI, SELJI;OKAMURA, HIROSHIGE;YAMATSU, HISAYUKI |
分类号 |
G11B7/0045;G11B7/005;G11B7/013;G11B7/09;G11B20/10;(IPC1-7):G11B7/00 |
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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