发明名称 |
READ-BACK SIGNAL EVALUATION METHOD, READ-BACK SIGNAL EVALUATION DEVICE, AND OPTICAL DISC DEVICE PROVIDED WITH SAME |
摘要 |
<p>A read-back signal evaluation device is provided with: a pattern detection unit (101) which extracts, from a binarized signal, a specific state transition pattern which has a possibility of causing a bit error; a difference metric computing unit (102) which calculates a difference metric based on the binarized signal of the extracted state transition pattern; an error computing unit (116) which calculates an error rate predicted based on an integrated value integrated by an integrating unit (125), a count value counted by a pattern counting unit (124), an integrated value integrated by an integrating unit (105), and a count value counted by a pattern counting unit (104); and a standard deviation computing unit (120) which calculates a standard deviation based on the calculated error rate.</p> |
申请公布号 |
WO2010089987(A1) |
申请公布日期 |
2010.08.12 |
申请号 |
WO2010JP00589 |
申请日期 |
2010.02.01 |
申请人 |
PANASONIC CORPORATION;SONY CORPORATION;MIYASHITA, HARUMITSU;HINO, YASUMORI;SHIRAISHI, JUNYA;KOBAYASHI, SHOEI |
发明人 |
MIYASHITA, HARUMITSU;HINO, YASUMORI;SHIRAISHI, JUNYA;KOBAYASHI, SHOEI |
分类号 |
G11B20/18;G11B20/14 |
主分类号 |
G11B20/18 |
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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