DISK DRIVE APPARATUS AND METHOD FOR ADJUSTING FOCUS BIAS AND SPHERICAL ABERRATION CORRECTION VALUE
    2.
    发明申请
    DISK DRIVE APPARATUS AND METHOD FOR ADJUSTING FOCUS BIAS AND SPHERICAL ABERRATION CORRECTION VALUE 失效
    磁盘驱动装置和调整聚焦偏差和球形噪声校正值的方法

    公开(公告)号:US20080068951A1

    公开(公告)日:2008-03-20

    申请号:US11849520

    申请日:2007-09-04

    申请人: Masatoshi NISHINO

    发明人: Masatoshi NISHINO

    IPC分类号: G11B5/58

    摘要: A disk drive apparatus includes: head means for performing laser irradiation to and detection of reflected light from an optical disk recording medium and having a focus bias mechanism and a spherical aberration correction mechanism; focus bias means for driving the focus bias mechanism to add a focus bias to a focus servo loop; spherical aberration correction means for driving the spherical aberration correction mechanism based on a spherical aberration correction value; evaluation value creating means for creating an evaluation value based on reflected light information obtained by the head means; adjustment means for adjusting the focus bias and the spherical aberration correction value; and control means for determining whether data is written on at least one track of the tracks adjacent to an adjustment use range on the recording medium and controlling an adjustment operation on the focus bias and the spherical aberration correction value by the adjustment means based on the determination result.

    摘要翻译: 磁盘驱动装置包括:头装置,用于对来自光盘记录介质的反射光进行激光照射和检测,并具有聚焦偏置机构和球面像差校正机构; 聚焦偏压装置,用于驱动聚焦偏压机构以将聚焦偏压加到聚焦伺服环路上; 球面像差校正装置,用于基于球面像差校正值来驱动球面像差校正机构; 评估值创建装置,用于基于由所述头部装置获得的反射光信息创建评估值; 用于调整聚焦偏置和球面像差校正值的调节装置; 以及控制装置,用于确定数据是否写在与记录介质上的调整使用范围相邻的轨道的至少一个轨道上,并且基于该确定来控制调整装置对焦点偏置和球面像差校正值的调整操作 结果。

    OPTICAL RECORDING MEDIUM DRIVING DEVICE AND SPHERICAL ABERRATION ADJUSTMENT METHOD
    3.
    发明申请
    OPTICAL RECORDING MEDIUM DRIVING DEVICE AND SPHERICAL ABERRATION ADJUSTMENT METHOD 失效
    光学记录介质驱动装置和球面抖动调整方法

    公开(公告)号:US20080074973A1

    公开(公告)日:2008-03-27

    申请号:US11856407

    申请日:2007-09-17

    申请人: Masatoshi NISHINO

    发明人: Masatoshi NISHINO

    IPC分类号: G11B7/00

    摘要: An optical recording medium driving device includes an optical head, an evaluation signal generating section, a focus servo section, a spherical aberration correction section, a focus bias adjuster, and a system controller. The optical head has a focus serve mechanism and a spherical aberration correction mechanism, irradiates a laser light, and detects a reflected light. The evaluation signal generating section generates, based on the reflected light, an evaluation signal. The focus servo section drives the focus servo mechanism according to a focus error signal to perform focus servo. The spherical aberration correction section drives the spherical aberration correction mechanism to perform spherical aberration correction. The focus bias adjuster adds focus bias to a focus loop. The system controller performs an operation for fixing an adjustment spherical aberration correction value.

    摘要翻译: 光记录介质驱动装置包括光头,评估信号产生部分,聚焦伺服部分,球面像差校正部分,聚焦偏移调节器和系统控制器。 光头具有聚焦服务机构和球面像差校正机构,照射激光并检测反射光。 评价信号生成部基于反射光生成评价信号。 聚焦伺服部根据聚焦误差信号驱动聚焦伺服机构,进行聚焦伺服。 球面像差校正部驱动球面像差校正机构进行球面像差校正。 聚焦偏移调节器将焦点偏置添加到聚焦环。 系统控制器执行用于固定调整球面像差校正值的操作。