SPHERICAL ABERRATION COMPENSATION METHOD OF OPTICAL STORAGE DEVICE
    1.
    发明申请
    SPHERICAL ABERRATION COMPENSATION METHOD OF OPTICAL STORAGE DEVICE 审中-公开
    光学存储器件的球面补偿补偿方法

    公开(公告)号:US20090168616A1

    公开(公告)日:2009-07-02

    申请号:US11964047

    申请日:2007-12-26

    Abstract: A spherical aberration compensation method of an optical storage device is provided. The method includes: deriving a first spherical aberration compensation value corresponding to a first track position on a recording layer of an optical storage medium to serve as a first reference value; deriving a second spherical aberration compensation value corresponding to a second track position on the recording layer of the optical storage medium to serve as a second reference value; and estimating a third spherical aberration compensation value corresponding to a third track position on the recording layer of the optical storage medium according to the first and second reference values.

    Abstract translation: 提供一种光学存储装置的球面像差补偿方法。 该方法包括:将对应于光存储介质的记录层上的第一轨道位置的第一球面像差补偿值导出为第一参考值; 得到对应于所述光存储介质的记录层上的第二轨迹位置的第二球面像差补偿值,以作为第二基准值; 以及根据第一和第二参考值估计与光存储介质的记录层上的第三轨迹位置对应的第三球面像差补偿值。

    Long seek control device for optical disk drive and method thereof
    2.
    发明授权
    Long seek control device for optical disk drive and method thereof 有权
    光盘驱动器长寻找控制装置及其方法

    公开(公告)号:US07218579B2

    公开(公告)日:2007-05-15

    申请号:US10829968

    申请日:2004-04-23

    CPC classification number: G11B7/08529

    Abstract: A optical disk drive long distance seek control device and method thereof, capable of feeding back the optical head control device through the step motor control device during the long distance seek; wherein, the step motor control device comprises a velocity profile generator capable of producing a quadratic profile to stabilize the step motor when finishing the seek; and more particular, the optical head control device uses a center error signal and a velocity error signal alternatively; moreover, the velocity error signal can be adjusted according to the output signals from the optical head control device and the step motor control device through a weighting mechanism.

    Abstract translation: 一种光盘驱动器长距离寻道控制装置及其方法,能够在长距离寻道期间通过步进电机控制装置反馈光头控制装置; 其中,所述步进马达控制装置包括速度分布发生器,其能够产生二次轮廓以在完成所述寻道时稳定所述步进马达; 更具体地说,光头控制装置交替使用中心误差信号和速度误差信号; 此外,速度误差信号可以根据来自光头控制装置和步进电机控制装置的输出信号通过加权机构进行调整。

    SEEKING CONTROL SYSTEM AND METHOD OF OPTICAL DISC DRIVE
    4.
    发明申请
    SEEKING CONTROL SYSTEM AND METHOD OF OPTICAL DISC DRIVE 审中-公开
    寻找控制系统和光盘驱动器的方法

    公开(公告)号:US20090073818A1

    公开(公告)日:2009-03-19

    申请号:US11854701

    申请日:2007-09-13

    CPC classification number: G11B7/08529

    Abstract: A seeking control system in an optical disc drive is disclosed. The system comprises a servo controller, a velocity control unit, and a switch unit. The servo controller receives a central servo signal to output a first tracking control signal for the tracking coil. The velocity control unit receives a tracking error signal to determine a velocity of the pickup head and compares the velocity of the pickup head with a predetermined velocity profile to generate the second tracking control signal. The switch unit outputs the second tracking control signal instead of the first tracking control signal to the motor driver to control the pickup head moving steadily.

    Abstract translation: 公开了一种光盘驱动器中的寻道控制系统。 该系统包括伺服控制器,速度控制单元和开关单元。 伺服控制器接收中心伺服信号以输出跟踪线圈的第一跟踪控制信号。 速度控制单元接收跟踪误差信号以确定拾取头的速度,并将拾取头的速度与预定的速度分布进行比较,以产生第二跟踪控制信号。 开关单元将第二跟踪控制信号代替第一跟踪控制信号输出到马达驱动器,以控制拾取头稳定地移动。

    Protection mechanism of an optical disc drive and method thereof
    5.
    发明申请
    Protection mechanism of an optical disc drive and method thereof 审中-公开
    光盘驱动器的保护机制及其方法

    公开(公告)号:US20070263501A1

    公开(公告)日:2007-11-15

    申请号:US11432277

    申请日:2006-05-11

    CPC classification number: G11B7/0946 G11B7/00718 G11B7/0948 G11B19/041

    Abstract: An optical disc drive includes a pickup head for receiving a reflective light from an optical disc and detecting a reflection signal accordingly, a derived signal generator for generating a derived signal derived from the reflection signal, an envelop generator for filtering the derived signal to generate an envelop of the derived signal, and a controller for receiving the envelop of the derived signal, comparing the envelop of the derived signal with a threshold, and controlling the optical disc drive entering a protection mechanism, when the envelop crosses the threshold in a predetermined time.

    Abstract translation: 光盘驱动器包括:拾取头,用于从光盘接收反射光并相应地检测反射信号;导出信号发生器,用于产生从反射信号导出的导出信号;包络发生器,用于对导出信号进行滤波,以产生 导出信号的包络,以及用于接收导出信号的包络的控制器,将导出信号的包络与阈值进行比较,并且当包络在预定时间内越过阈值时,控制进入保护机制的光盘驱动器 。

    COMPENSATOR CIRCUIT FOR AN OPTICAL STORAGE DEVICE
    6.
    发明申请
    COMPENSATOR CIRCUIT FOR AN OPTICAL STORAGE DEVICE 审中-公开
    用于光存储器件的补偿电路

    公开(公告)号:US20050052963A1

    公开(公告)日:2005-03-10

    申请号:US10605094

    申请日:2003-09-08

    CPC classification number: G11B7/0941

    Abstract: A compensator circuit comprises a phase-lead compensator for receiving an error signal generated by an optical storage device and generating a phase-lead error signal, a band-pass filter connected in parallel with the lead compensator for magnifying a rotating frequency error signal and generating a filtered signal, and an adder for synthesizing the phase-lead error signal and the filtered signal so as to reduce a steady-state error of the error signal. The compensator circuit does not comprise any phase-lag compensator.

    Abstract translation: 补偿电路包括相位超前补偿器,用于接收由光学存储装置产生的误差信号并产生相位超前误差信号,与引线补偿器并联连接的带通滤波器,用于放大旋转频率误差信号并产生 滤波信号和用于合成相位超前误差信号和滤波信号的加法器,以便减小误差信号的稳态误差。 补偿电路不包括任何相位滞后补偿器。

    Long Seek control device for optical disk drive and method thereof
    7.
    发明申请
    Long Seek control device for optical disk drive and method thereof 有权
    用于光盘驱动器的长寻求控制装置及其方法

    公开(公告)号:US20050190667A1

    公开(公告)日:2005-09-01

    申请号:US10829968

    申请日:2004-04-23

    CPC classification number: G11B7/08529

    Abstract: A optical disk drive long distance seek control device and method thereof, capable of feeding back the optical head control device through the step motor control device during the long distance seek; wherein, the step motor control device comprises a velocity profile generator capable of producing a quadratic profile to stabilize the step motor when finishing the seek; and more particular, the optical head control device uses a center error signal and a velocity error signal alternatively; moreover, the velocity error signal can be adjusted according to the output signals from the optical head control device and the step motor control device through a weighting mechanism.

    Abstract translation: 一种光盘驱动器长距离寻道控制装置及其方法,能够在长距离寻道期间通过步进电机控制装置反馈光头控制装置; 其中,所述步进马达控制装置包括速度分布发生器,其能够产生二次轮廓以在完成所述寻道时稳定所述步进马达; 更具体地说,光头控制装置交替使用中心误差信号和速度误差信号; 此外,速度误差信号可以根据来自光头控制装置和步进电机控制装置的输出信号通过加权机构进行调整。

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