公开(公告)号：US20090168616A1

公开(公告)日：2009-07-02

申请号：US11964047

申请日：2007-12-26

Applicant: Yi-Jen Chung ,  Cheng-Chi Huang ,  Chao-Ming Huang

Inventor： Yi-Jen Chung ,  Cheng-Chi Huang ,  Chao-Ming Huang

IPC: G11B7/00

CPC classification number: G11B7/0945 ,  G11B7/0948 ,  G11B7/13925 ,  G11B2007/0006 ,  G11B2007/0013

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。

公开(公告)号：US07218579B2

公开(公告)日：2007-05-15

申请号：US10829968

申请日：2004-04-23

Applicant: Feng-Fu Lin ,  Yi-Jen Chung

Inventor： Feng-Fu Lin ,  Yi-Jen Chung

IPC: G11B7/00

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。

公开(公告)号：US20110246138A1

公开(公告)日：2011-10-06

申请号：US12912732

申请日：2010-10-26

Applicant: Yi-Jen Chung ,  Chi-Pei Huang ,  Ching-Ning Chiu ,  Jin-Bin Yang

Inventor： Yi-Jen Chung ,  Chi-Pei Huang ,  Ching-Ning Chiu ,  Jin-Bin Yang

IPC: G06F11/30 ,  G06F15/00

CPC classification number: G06F13/4072

Abstract: A hardware status detecting circuit for detecting a hardware status of a target apparatus includes a plurality of hardware status detectors operating in response to the hardware status of the target apparatus, and a signal processing unit coupled to the hardware status detectors for generating a hardware status detecting signal having information of operational statuses of the hardware status detectors embedded therein.

Abstract translation: 用于检测目标设备的硬件状态的硬件状态检测电路包括响应于目标设备的硬件状态操作的多个硬件状态检测器，以及耦合到硬件状态检测器的信号处理单元，用于产生硬件状态检测 信号，其具有嵌入其中的硬件状态检测器的操作状态信息。

公开(公告)号：US20090073818A1

公开(公告)日：2009-03-19

申请号：US11854701

申请日：2007-09-13

Applicant: Yi-jen Chung ,  Feng-fu Lin ,  Chun-wei Lin

Inventor： Yi-jen Chung ,  Feng-fu Lin ,  Chun-wei Lin

IPC: G11B21/08

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。

公开(公告)号：US20070263501A1

公开(公告)日：2007-11-15

申请号：US11432277

申请日：2006-05-11

Applicant: Feng-fu Lin ,  Yi-jen Chung ,  Chun-wei Lin

Inventor： Feng-fu Lin ,  Yi-jen Chung ,  Chun-wei Lin

IPC: G11B7/00

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 。

公开(公告)号：US20050052963A1

公开(公告)日：2005-03-10

申请号：US10605094

申请日：2003-09-08

Applicant: Li-Ting Chen ,  Yi-Jen Chung ,  Chi-Mou Chao

Inventor： Li-Ting Chen ,  Yi-Jen Chung ,  Chi-Mou Chao

IPC: G11B7/00 ,  G11B7/09

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。

公开(公告)号：US20050190667A1

公开(公告)日：2005-09-01

申请号：US10829968

申请日：2004-04-23

Applicant: Feng-Fu Lin ,  Yi-Jen Chung

Inventor： Feng-Fu Lin ,  Yi-Jen Chung

IPC: G11B7/00 ,  G11B7/085

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。