公开(公告)号：US20090290465A1

公开(公告)日：2009-11-26

申请号：US12260413

申请日：2008-10-29

申请人： Young-jae Park ,  Joong-gon Kim ,  No-cheol Park ,  Hyun-seok Yang

发明人： Young-jae Park ,  Joong-gon Kim ,  No-cheol Park ,  Hyun-seok Yang

IPC分类号： G11B7/00

CPC分类号： G11B7/08511 ,  G11B7/121 ,  G11B7/1387

摘要： A gap pull-in method that minimizes overshoot due to a moving speed of a light focusing element and disturbance of a disk when the light focusing element is converted from an open loop state to a closed loop state during a gap pull-in of a near-field optical disk driver, and an optical disk driving apparatus using the method, the gap pull-in method including: generating an inverse actuator driving signal having a pulse duration and a pulse amplitude according to a moving speed of a light focusing element when an open loop state is changed to a closed loop state in the gap pull-in; and driving an actuator using the inverse actuator driving signal.

摘要翻译： 一种间隙引入方法，其使由于聚光元件的移动速度引起的过冲和当光聚焦元件在接近的间隙拉入期间将光聚焦元件从开环状态转换为闭环状态时的盘的干扰 场光盘驱动器和使用该方法的光盘驱动装置，所述间隙引入方法包括：当根据光聚焦元件的移动速度产生具有脉冲持续时间和脉冲幅度的反向致动器驱动信号时 开环状态在间隙拉入中变为闭环状态; 并使用反向致动器驱动信号驱动致动器。

公开(公告)号：US08031566B2

公开(公告)日：2011-10-04

申请号：US12170731

申请日：2008-07-10

申请人： Young-jae Park ,  Joong-gon Kim ,  Noh-cheol Park ,  Hyun-seok Yang

发明人： Young-jae Park ,  Joong-gon Kim ,  Noh-cheol Park ,  Hyun-seok Yang

IPC分类号： G11B7/00

CPC分类号： G11B7/08511 ,  G11B7/1387

摘要： A gap servo control method and apparatus for increasing a disturbance cancellation capability and decreasing the occurrence of an overshoot in a near-field optical disc drive include: generating an actuator driving signal of a transient response process by using a signal obtained by removing a disturbance contained in the gap error signal using a first band when a level of a gap error signal reaches a first level; and generating the actuator driving signal of the transient response process by using a signal obtained by removing the disturbance contained in the gap error signal using a second band when the level of the gap error signal reaches a second level.

摘要翻译： 用于增加干扰消除能力并减少近场光盘驱动器中的过冲的发生的间隙伺服控制方法和装置包括：通过使用通过去除包含的干扰获得的信号产生瞬态响应处理的致动器驱动信号 当间隙误差信号的电平达到第一电平时使用第一频带的间隙误差信号; 以及当间隙误差信号的电平达到第二电平时，通过使用通过使用第二频带去除包含在间隙误差信号中的干扰而获得的信号来产生瞬态响应处理的致动器驱动信号。

公开(公告)号：US07990815B2

公开(公告)日：2011-08-02

申请号：US12036474

申请日：2008-02-25

申请人： An-sik Jeong ,  Joon Jeong ,  Joong-gon Kim ,  Hyun-seok Yang ,  Chong-sam Chung ,  Noh-cheol Park ,  Kyung-geun Lee ,  Jin-kyung Lee ,  Jong-hyun Shin

发明人： An-sik Jeong ,  Joon Jeong ,  Joong-gon Kim ,  Hyun-seok Yang ,  Chong-sam Chung ,  Noh-cheol Park ,  Kyung-geun Lee ,  Jin-kyung Lee ,  Jong-hyun Shin

IPC分类号： G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/08511 ,  G11B7/0917

摘要： An optical disc apparatus, and a method of driving the same, includes a light focusing element disposed to focus light emitted from a light source onto a disc; an actuator to move the light focusing element toward or away from the disc according to a voltage applied to the actuator; a light intensity detection unit to detect the intensity of light reflected from the disc; a servo unit to generate a gap error signal and a third voltage, the third voltage being the sum of a first voltage and a second voltage, and to apply the generated third voltage to the actuator; and a control unit to control the servo unit to perform a gap pull-in operation when the light focusing element is moved toward the disc according to the gap error signal and the third voltage.

摘要翻译： 光盘装置及其驱动方法包括：将从光源发射的光聚焦到光盘上的光聚焦元件; 致动器，用于根据施加到致动器的电压将光聚焦元件朝向或远离盘移动; 光度检测单元，用于检测从所述盘反射的光的强度; 产生间隙误差信号和第三电压的伺服单元，所述第三电压是第一电压和第二电压之和，并将所产生的第三电压施加到所述致动器; 以及控制单元，用于当所述光聚焦元件根据所述间隙误差信号和所述第三电压朝向所述盘移动时，控制所述伺服单元执行间隙拉入操作。

公开(公告)号：US20090059752A1

公开(公告)日：2009-03-05

申请号：US12036474

申请日：2008-02-25

申请人： An-sik JEONG ,  Joon Jeong ,  Joong-gon Kim ,  Hyun-seok Yang ,  Chong-sam Chung ,  Noh-cheol Park ,  Kyung-geun Lee ,  Jin-kyung Lee ,  Jong-hyun Shin

发明人： An-sik JEONG ,  Joon Jeong ,  Joong-gon Kim ,  Hyun-seok Yang ,  Chong-sam Chung ,  Noh-cheol Park ,  Kyung-geun Lee ,  Jin-kyung Lee ,  Jong-hyun Shin

IPC分类号： G11B7/08 ,  G11B7/00

CPC分类号： G11B7/0945 ,  G11B7/08511 ,  G11B7/0917

摘要： An optical disc apparatus, and a method of driving the same, includes a light focusing element disposed to focus light emitted from a light source onto a disc; an actuator to move the light focusing element toward or away from the disc according to a voltage applied to the actuator; a light intensity detection unit to detect the intensity of light reflected from the disc ; a servo unit to generate a gap error signal and a third voltage, the third voltage being the sum of a first voltage and a second voltage, and to apply the generated third voltage to the actuator; and a control unit to control the servo unit to perform a gap pull-in operation when the light focusing element is moved toward the disc according to the gap error signal and the third voltage.

摘要翻译： 光盘装置及其驱动方法包括：将从光源发射的光聚焦到光盘上的光聚焦元件; 致动器，用于根据施加到致动器的电压将光聚焦元件朝向或远离盘移动; 光度检测单元，用于检测从所述盘反射的光的强度; 产生间隙误差信号和第三电压的伺服单元，所述第三电压是第一电压和第二电压之和，并将所产生的第三电压施加到所述致动器; 以及控制单元，用于当所述光聚焦元件根据所述间隙误差信号和所述第三电压朝向所述盘移动时，控制所述伺服单元执行间隙拉入操作。