发明名称 OPTICAL DISC VERIFICATION METHOD AND OPTICAL DISC MEDIUM
摘要 An optical disc verification method according to the present invention includes the steps of: writing data on first, second and third radial locations on an optical disc at a writing speed V1 and reading the data written there, thereby measuring read signal quality index values A, B and C, where the second radial location is inside of the first radial location and the third radial location is inside of the second radial location; writing data on the first and second radial locations at a writing speed V2, which is higher than V1, and reading the data written there, thereby measuring read signal quality index values D and E; and correcting the signal quality index value C with the difference between the signal quality index values B and E, thereby calculating a signal quality index value F that would be obtained if data is written on, and then read from, the third radial location at the speed V2.
申请公布号 US2009207705(A1) 申请公布日期 2009.08.20
申请号 US20090369870 申请日期 2009.02.12
申请人 PANASONIC CORPORATION 发明人 FURUMIYA SHIGERU;NAKAMURA ATSUSHI
分类号 G11B20/10 主分类号 G11B20/10
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