公开(公告)号：US20120002518A1

公开(公告)日：2012-01-05

申请号：US13109087

申请日：2011-05-17

申请人： Seiichi SAGARA ,  Kamon Uemura ,  Takeshi Yonezawa

发明人： Seiichi SAGARA ,  Kamon Uemura ,  Takeshi Yonezawa

IPC分类号： G11B7/00

CPC分类号： G11B7/0956 ,  G11B7/13927 ,  G11B2007/0013

摘要： There is provided a playback device including an adjustment portion that, based on a first data recording surface among a plurality of data recording surfaces of an optical recording medium, adjusts tilt with respect to the first data recording surface, an adjustment amount measurement portion that measures a first tilt adjustment amount from a result of the tilt adjustment, an acquisition portion that acquires a coma aberration of the playback device, and a calculation portion that, based on the first tilt adjustment amount and the coma aberration, calculates a second tilt adjustment amount to adjust tilt with respect to a second data recording surface that is different to the first data recording surface.

摘要翻译： 提供了一种重放装置，包括：调整部，其基于光记录介质的多个数据记录面中的第一数据记录面调整相对于第一数据记录面的倾斜;调整量测量部， 从倾斜调整的结果得到的第一倾斜调节量，获取重放装置的彗形像差的获取部分，以及基于第一倾斜调整量和彗形像差的计算部分，计算第二倾斜调节量 调整相对于与第一数据记录表面不同的第二数据记录表面的倾斜度。

公开(公告)号：US20080310263A1

公开(公告)日：2008-12-18

申请号：US12126638

申请日：2008-05-23

申请人： Seiichi SAGARA

发明人： Seiichi SAGARA

IPC分类号： G11B7/00

CPC分类号： G11B7/13925 ,  G11B7/0945 ,  G11B7/1378 ,  G11B2007/13727

摘要： A compensation value setting device selects, based on the first and second index values calculated by the first and second index value calculation sections for each combination of the spherical aberration compensation value and the lens' position compensation value, one combination of the spherical aberration compensation value and the lens' position compensation value and then sets the selected combination for correcting the spherical aberration and the position of the objective lens.

摘要翻译： 补偿值设定装置根据由第一和第二指标值计算部分对球面像差补偿值和透镜'位置补偿值的组合的每个组合计算的第一和第二指数值，选择球面像差补偿值 和镜头的位置补偿值，然后设置用于校正球面像差和物镜位置的所选组合。