发明名称 |
Method of evaluating the quality of a wobble address signal of a recording medium |
摘要 |
In an information recording medium evaluating method of evaluating an information recording medium in which the address of a guide groove (G) wobbling at a specific frequency is recorded by modulating the wobble of the guide groove (G), an address reproduction error rate is estimated from both of the amount of fluctuation in the amplitude of a wobble signal and the signal-to-noise ratio (SNR), a specific range with a low error rate is set, and it is determined whether the error rate is within the specific range.
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申请公布号 |
EP1657713(A2) |
申请公布日期 |
2006.05.17 |
申请号 |
EP20050110256 |
申请日期 |
2005.11.02 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
OGAWA, AKIHITO;NAGAI, YUJI |
分类号 |
G11B7/005;G11B7/24;G11B7/26;G11B27/19 |
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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