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    • 7. 发明申请
    • INFORMATION REPRODUCING APPARATUS, SERVO ADJUSTING METHOD, AND THE LIKE
    • 信息再现装置,伺服调整方法等
    • US20100172222A1
    • 2010-07-08
    • US12160730
    • 2007-01-10
    • Yoshihiro HashizukaYoshimichi NishioHiroyuki KobayashiHiroki GotoHideaki TsurumiTakaaki UjiieHiroshi SomeyaManabu ShimodairaHidetaka Urabe
    • Yoshihiro HashizukaYoshimichi NishioHiroyuki KobayashiHiroki GotoHideaki TsurumiTakaaki UjiieHiroshi SomeyaManabu ShimodairaHidetaka Urabe
    • G11B7/00
    • G11B7/0945G11B7/094G11B7/0941G11B2007/0013
    • The present invention provides an information processing apparatus, a servo adjustment method, and the like realizing reduced time required for servo adjustment.An information reproducing apparatus according to the present invention is for reproducing information recorded on a recording medium having a plurality of recording layers.The apparatus includes: signal level measuring means for measuring a signal level of each of recording layers; and servo adjusting means for performing servo adjustment on at least one of the recording layers, storing a servo adjustment value in the servo adjustment, and in the case where the recorded information is reproduced from the recording layers, performing servo adjustment on the recording layers so as to become to the servo adjustment value.When a level ratio of signal levels of at least two recording layers in the measured signal levels of the recording layers lies in a threshold range, the servo adjusting means performs the servo adjustment on one of the recording layers, stores the servo adjustment value in the servo adjustment, and in the case where the recorded information is reproduced from the other recording layer, performs the servo adjustment on the other recording layer so as to become to the servo adjustment value for one recording layer.
    • 本发明提供一种实现伺服调整所需时间缩短的信息处理装置,伺服调整方法等。 根据本发明的信息再现装置用于再现记录在具有多个记录层的记录介质上的信息。 该装置包括:用于测量每个记录层的信号电平的信号电平测量装置; 以及用于在至少一个记录层上执行伺服调整的伺服调整装置,在伺服调整中存储伺服调整值,并且在记录层再现记录信息的情况下,对记录层进行伺服调整, 成为伺服调整值。 当记录层的测量信号电平中的至少两个记录层的信号电平的电平比在阈值范围内时,伺服调整装置在其中一个记录层上执行伺服调节,将伺服调整值存储在 伺服调整,并且在从另一个记录层再现记录信息的情况下,在另一个记录层上进行伺服调整,使其成为一个记录层的伺服调整值。