发明名称 METHOD AND DEVICE FOR OPTICAL RECORDING/REPRODUCING, AND OPTICAL PICKUP DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To provide a method and device for optical recording/reproducing, capable of suppressing the effect of a gap change amount on recording/reproducing characteristics during fast rotation, and an optical pickup device. <P>SOLUTION: The method for performing recording and/or reproducing by applying a near field light to an optical recording medium 1 includes a step of applying two or more light beams as near field light beams to the optical recording medium 1, a step of detecting the information on a distance from the optical recording medium 1 based on one of the two or more light beams applied to the front side of a scanning direction with respect to the optical recording medium 1, and a step of performing recording compensation and/or reproducing compensation by near field light application, by the remaining light beams based on the distance information. <P>COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2006302428(A) 申请公布日期 2006.11.02
申请号 JP20050123827 申请日期 2005.04.21
申请人 SONY CORP 发明人 SHINODA MASATAKA
分类号 G11B7/09;G11B7/0045;G11B7/005;G11B7/125;G11B7/135 主分类号 G11B7/09
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