发明授权
- 专利标题： Method for evaluating optical recording medium, optical recording medium, and information-recording/reproducing apparatus
- 专利标题（中）： 评估光记录介质，光记录介质和信息记录/再现装置的方法
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申请号： US11389099申请日： 2006-03-27
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公开(公告)号： US07768885B2公开(公告)日： 2010-08-03
- 发明人: Naoki Kitagaki , Makoto Miyamoto , Makoto Iimura , Satoshi Sukada
- 申请人： Naoki Kitagaki , Makoto Miyamoto , Makoto Iimura , Satoshi Sukada
- 申请人地址： JP Ibaraki-shi
- 专利权人： Hitachi Maxell, Ltd.
- 当前专利权人： Hitachi Maxell, Ltd.
- 当前专利权人地址： JP Ibaraki-shi
- 代理机构： Oliff & Berridge, PLC
- 优先权： JP2005-093842 20050329
- 主分类号： G11B15/52
- IPC分类号： G11B15/52
摘要：
The reproduction durability of an optical recording medium is evaluated highly accurately in a short period of time by providing a method for evaluating the optical recording medium, the method including determining an operating laser power for heating a recording layer to a recording operating temperature; determining a temperature of the recording layer when a laser beam having a predetermined reproducing laser power is radiated during a data reproduction; determining a relationship between the reproducing laser power during the data reproduction and a reproduction durability times at the reproducing laser power; and determining a relationship between the temperature of the recording layer during the data reproduction and the reproduction durability times from the relationship between the reproducing laser power during the data reproduction and the reproduction durability times.
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