Error signal detection apparatus for optical recording/reproducing system
    2.
    发明公开
    Error signal detection apparatus for optical recording/reproducing system 审中-公开
    ines ines s ines s s s s s s s s s s

    公开(公告)号:EP1207523A2

    公开(公告)日:2002-05-22

    申请号:EP01307279.8

    申请日:2001-08-24

    IPC分类号: G11B7/095

    CPC分类号: G11B7/131 G11B7/0956

    摘要: An error signal detection apparatus for an optical recording/reproduction system, which is capable of accurately detecting a tangential tilt error signal, a radial tilt error signal, and/or a defocus signal, in consideration of the phase characteristics of each light beam portion reflected/diffracted from a recording medium, is provided. The error signal detection apparatus can accurately detect a tangential tilt error signal without being affected by radial tilt, defocus and detrack; a radial tilt error signal without being affected by tangential tilt, defocus and detrack; and/or a defocus error signal without being affected by tangential tilt, radial tilt and detrack.

    摘要翻译: 考虑到反射的每个光束部分的相位特性,用于光学记录/再现系统的误差信号检测装置能够精确地检测切向倾斜误差信号,径向倾斜误差信号和/或散焦信号 /从记录介质衍射。 误差信号检测装置可以精确地检测切向倾斜误差信号,而不受径向倾斜,散焦和脱轨的影响; 径向倾斜误差信号,不受切线倾斜,散焦和脱落的影响; 和/或散焦误差信号,而不受切线倾斜,径向倾斜和脱轨的影响。