发明名称 Information reproducing apparatus and method
摘要 There is provided an optical information recording/reproducing apparatus capable of obtaining a high super-resolution effect using an optical information recording medium in which a super-resolution thin film is formed. An optical information recording medium 1 having a super-resolution layer is irradiated with a laser light in a light emission pattern such that a bias light emission portion that does not cause the super-resolution layer to be in the state of super-resolution and a pulse light emission portion that causes the super-resolution layer to be in the state of super-resolution alternatively appear, and reflected light is detected. A reproduction signal based on the pulse light emission portion and a reproduction signal based on the bias light emission portion are acquired. The results obtained by performing an arithmetic processing on the reproduction signal based on the bias light emission portion and the reproduction signal based on the pulse light emission portion are outputted as reproduction data.
申请公布号 US7839748(B2) 申请公布日期 2010.11.23
申请号 US20060501046 申请日期 2006.08.09
申请人 HITACHI, LTD. 发明人 MAEDA TAKESHI
分类号 G11B7/0045 主分类号 G11B7/0045
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