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：US08040766B2

公开(公告)日：2011-10-18

申请号：US12718478

申请日：2010-03-05

申请人： Dong-hwan Lee ,  Young-jae Park

发明人： Dong-hwan Lee ,  Young-jae Park

IPC分类号： G11B7/00

CPC分类号： G11B7/00375 ,  G11B7/0948

摘要： An apparatus for compensating for a defect of a storage medium of an optical driving includes a memory to store sample values of a servo driving signal during at least one track sampled by a first signal and cycle information about the first signal; a servo driving signal estimator to estimate a servo driving signal during at least one next track using the sample values, the cycle information about the first signal, and cycle information based on a second signal; and a transmitter to transmit the servo driving signal estimated by the servo driving signal estimator to a servo driver of the optical driving device during a defect section of the storage medium; wherein the first signal is synchronized with a radial direction of the storage medium; and the second signal has a frequency higher than the first signal.

摘要翻译： 用于补偿光学驱动的存储介质的缺陷的装置包括存储器，用于存储在由第一信号采样的至少一个轨道期间的伺服驱动信号的采样值，以及关于第一信号的周期信息; 伺服驱动信号估计器，用于使用采样值，关于第一信号的周期信息和基于第二信号的周期信息来估计在至少一个下一个轨道期间的伺服驱动信号; 以及发送器，用于在所述存储介质的缺陷部分期间将由所述伺服驱动信号估计器估计的伺服驱动信号发送到所述光驱动装置的伺服驱动器; 其中所述第一信号与所述存储介质的径向方向同步; 并且第二信号具有高于第一信号的频率。

公开(公告)号：US20080068941A1

公开(公告)日：2008-03-20

申请号：US11693168

申请日：2007-03-29

申请人： Jong-hyun Shin ,  Tatsuhiro Otsuka ,  Kwan-joon Kim ,  Young-jae Park

发明人： Jong-hyun Shin ,  Tatsuhiro Otsuka ,  Kwan-joon Kim ,  Young-jae Park

IPC分类号： G11B7/00

CPC分类号： G11B7/00375 ,  G11B7/0901 ,  G11B7/0948 ,  G11B7/0953 ,  G11B2020/1281 ,  G11B2220/2537

摘要： A method of processing a defect detection signal in a recording and/or reproducing apparatus that records and/or reproduces an optical information storage medium the method including generating a defect detection signal comprising a servo hold pulse from a radio frequency (RF) signal output from an optical pickup unit; and generating an OR signal by performing an OR operation on the defect detection signal and a first pulse signal having a first pulse width. The method further includes generating an AND signal by performing an AND operation on the OR signal and a second pulse signal having a second pulse width.

摘要翻译： 一种在记录和/或再现光学信息存储介质的记录和/或再现设备中处理缺陷检测信号的方法，该方法包括：从包括从...的输出的射频（RF）信号产生包括伺服保持脉冲的缺陷检测信号 光学拾取单元; 以及通过对所述缺陷检测信号和具有第一脉冲宽度的第一脉冲信号执行或运算来产生或信号。 该方法还包括通过对或信号执行AND运算和具有第二脉冲宽度的第二脉冲信号来产生AND信号。

公开(公告)号：US20100053710A1

公开(公告)日：2010-03-04

申请号：US12548653

申请日：2009-08-27

申请人： Jae-cheol BAE ,  In-joo Kim ,  Young-jae Park ,  Taek-seong Jeong

发明人： Jae-cheol BAE ,  In-joo Kim ,  Young-jae Park ,  Taek-seong Jeong

IPC分类号： G03H1/02

CPC分类号： G11B7/08511 ,  G03H2250/34 ,  G03H2250/42 ,  G11B7/00781 ,  G11B7/083 ,  G11B7/1275 ,  G11B7/24038 ,  G11B7/24044

摘要： An apparatus for recording/reproducing holographic data and a method of adjusting a position of a recording layer. While an objective lens focusing first and second lights having different wavelengths on a holographic data storage medium including first and second reflective layers reciprocatingly moves in a direction of an optical axis, a focus movement unit, which moves a focus of the second light in the direction of the optical axis until a time difference between a first detection signal generated when the first light is reflected from the first reflective layer and a second detection signal generated when the second light is reflected from the second reflective layer becomes a value corresponding to a position of a desired recording layer, is controlled to move a focal position of the second light so that the focal position of the second light can be adjusted to the position of a desired recording layer.

摘要翻译： 用于记录/再现全息数据的装置和调节记录层的位置的方法。 虽然在包括第一和第二反射层的全息数据存储介质上聚焦具有不同波长的第一和第二光的物镜在光轴的方向上往复运动，但是聚焦移动单元使第二光的焦点朝向 直到当第一光从第一反射层反射时产生的第一检测信号与当第二光从第二反射层反射时产生的第二检测信号之间的时间差变为对应于第二反射层的位置的值 控制所需的记录层，以移动第二光的焦点位置，使得可以将第二光的焦点位置调整到所需记录层的位置。

公开(公告)号：US07859955B2

公开(公告)日：2010-12-28

申请号：US12548653

申请日：2009-08-27

申请人： Jae-cheol Bae ,  In-joo Kim ,  Young-jae Park ,  Taek-seong Jeong

发明人： Jae-cheol Bae ,  In-joo Kim ,  Young-jae Park ,  Taek-seong Jeong

IPC分类号： G11B7/00

CPC分类号： G11B7/08511 ,  G03H2250/34 ,  G03H2250/42 ,  G11B7/00781 ,  G11B7/083 ,  G11B7/1275 ,  G11B7/24038 ,  G11B7/24044

摘要： An apparatus for recording/reproducing holographic data and a method of adjusting a position of a recording layer. While an objective lens focusing first and second lights having different wavelengths on a holographic data storage medium including first and second reflective layers reciprocatingly moves in a direction of an optical axis, a focus movement unit, which moves a focus of the second light in the direction of the optical axis until a time difference between a first detection signal generated when the first light is reflected from the first reflective layer and a second detection signal generated when the second light is reflected from the second reflective layer becomes a value corresponding to a position of a desired recording layer, is controlled to move a focal position of the second light so that the focal position of the second light can be adjusted to the position of a desired recording layer.

摘要翻译： 用于记录/再现全息数据的装置和调节记录层的位置的方法。 虽然在包括第一和第二反射层的全息数据存储介质上聚焦具有不同波长的第一和第二光的物镜在光轴的方向上往复运动，但是聚焦移动单元使第二光的焦点朝向 直到当第一光从第一反射层反射时产生的第一检测信号与当第二光从第二反射层反射时产生的第二检测信号之间的时间差变为对应于第二反射层的位置的值 控制所需的记录层，以移动第二光的焦点位置，使得可以将第二光的焦点位置调整到所需记录层的位置。

公开(公告)号：US20080089193A1

公开(公告)日：2008-04-17

申请号：US11748114

申请日：2007-05-14

申请人： Sung-hyun Kim ,  Young-jae Park ,  Tatsuhiro Otsuka ,  Kab-hyun Jeong

发明人： Sung-hyun Kim ,  Young-jae Park ,  Tatsuhiro Otsuka ,  Kab-hyun Jeong

IPC分类号： G11B7/00 ,  G11B7/085

CPC分类号： G11B7/08511 ,  G11B7/13925 ,  G11B2007/0013

摘要： An apparatus and method for controlling a focus jump between recoding layers in a high-density multi-layer disk. The apparatus includes: an optical pickup including an objective lens focusing light on the disk, an aberration correcting unit, and a photodetector detecting light reflected from the disk; a signal processing unit generating a focus error signal from a signal output by the photodetector; a focus hold unit holding a focus servo of the optical pickup; a focus servo control unit controlling the focus servo of the optical pickup using the focus error signal; and a driving unit driving the optical pickup using a signal output by the focus servo control unit.

摘要翻译： 一种用于控制高密度多层盘中的编码层之间的聚焦跳跃的装置和方法。 该装置包括：光拾取器，其包括将光聚焦在盘上的物镜，像差校正单元和检测从盘反射的光的光电检测器; 信号处理单元，从由所述光电检测器输出的信号产生聚焦误差信号; 保持光拾取器的聚焦伺服的聚焦保持单元; 聚焦伺服控制单元，使用聚焦误差信号控制光学拾取器的聚焦伺服; 以及驱动单元，其使用由聚焦伺服控制单元输出的信号来驱动光学拾取器。

公开(公告)号：US08363532B2

公开(公告)日：2013-01-29

申请号：US12571752

申请日：2009-10-01

申请人： Young-jae Park ,  Jae-cheol Bae ,  In-Joo Kim

发明人： Young-jae Park ,  Jae-cheol Bae ,  In-Joo Kim

IPC分类号： G11B7/00

CPC分类号： G11B7/0065

摘要： A method and apparatus to control a position in which data is to be recorded on a holographic data recording medium by using interference between a reference light and a signal light, the method including: irradiating the reference light and the signal light on the holographic data recording medium; generating a focus error signal that indicates a distance difference between a first focus corresponding to a focus of the reference light on the holographic data recording medium and a second focus corresponding to a focus of the signal light on the holographic data recording medium, based on information about a reflective signal light generated when the irradiated signal light is reflected from a reflective transmission layer of the holographic data recording medium; and moving the second focus to a position of the first focus, based on the focus error signal.

摘要翻译： 一种通过使用参考光和信号光之间的干涉来控制要在全息数据记录介质上记录数据的位置的方法和装置，所述方法包括：将参考光和信号光照射在全息数据记录上 中; 基于信息产生指示对应于全息数据记录介质上的参考光的焦点的第一焦点与对应于全息数据记录介质上的信号光的焦点的第二焦点之间的距离差的聚焦误差信号 关于当照射的信号光从全息数据记录介质的反射透射层反射时产生的反射信号光; 并且基于聚焦误差信号将第二焦点移动到第一焦点的位置。

公开(公告)号：US07920449B2

公开(公告)日：2011-04-05

申请号：US11838575

申请日：2007-08-14

申请人： Young-jae Park ,  Sung-hyun Kim ,  Tatsuhiro Otsuka ,  Jong-hyun Shin

发明人： Young-jae Park ,  Sung-hyun Kim ,  Tatsuhiro Otsuka ,  Jong-hyun Shin

IPC分类号： G11B7/00

CPC分类号： G11B7/0908 ,  G11B7/13925 ,  G11B2007/0013

摘要： A focusing control method of an optical information storage media recording and/or reproduction apparatus controlling a focusing operation by moving an objective lens upwards or downwards in a direction towards or away from an optical information storage medium having a plurality of data layers includes receiving a focusing lead-in command signal to focus an optical beam on a target data layer, compensating for spherical aberration with respect to the target data layer, detecting a focus error signal based on an intensity of the optical beam reflected from the optical information storage medium and condensed by an optical detector, identifying the target data layer using an amplitude or a frequency of the focus error signal, and focusing the optical beam on the target data layer by moving the objective lens in an opposite direction from a direction in which the objective lens is initially moved.

摘要翻译： 通过在朝向或远离具有多个数据层的光学信息存储介质的方向向上或向下移动物镜来控制聚焦操作的光学信息存储介质记录和/或再现装置的聚焦控制方法包括：接收聚焦 引导命令信号，将光束聚焦在目标数据层上，补偿相对于目标数据层的球面像差，基于从光学信息存储介质反射的光束的强度检测聚焦误差信号， 通过光学检测器，使用聚焦误差信号的幅度或频率来识别目标数据层，并且通过沿与物镜的方向相反的方向移动物镜将光束聚焦在目标数据层上 最初动了。

公开(公告)号：US20080192591A1

公开(公告)日：2008-08-14

申请号：US11838575

申请日：2007-08-14

申请人： Young-jae Park ,  Sung-hyun Kim ,  Tatsuhiro Otsuka ,  Jong-hyun Shin

发明人： Young-jae Park ,  Sung-hyun Kim ,  Tatsuhiro Otsuka ,  Jong-hyun Shin

IPC分类号： G11B7/00

CPC分类号： G11B7/0908 ,  G11B7/13925 ,  G11B2007/0013

摘要： A focusing control method of an optical information storage media recording and/or reproduction apparatus controlling a focusing operation by moving an objective lens upwards or downwards in a direction towards or away from an optical information storage medium having a plurality of data layers includes receiving a focusing lead-in command signal to focus an optical beam on a target data layer, compensating for spherical aberration with respect to the target data layer, detecting a focus error signal based on an intensity of the optical beam reflected from the optical information storage medium and condensed by an optical detector, identifying the target data layer using an amplitude or a frequency of the focus error signal, and focusing the optical beam on the target data layer by moving the objective lens in an opposite direction from a direction in which the objective lens is initially moved.

摘要翻译： 通过在朝向或远离具有多个数据层的光学信息存储介质的方向向上或向下移动物镜来控制聚焦操作的光学信息存储介质记录和/或再现装置的聚焦控制方法包括：接收聚焦 引导命令信号，将光束聚焦在目标数据层上，补偿相对于目标数据层的球面像差，基于从光学信息存储介质反射的光束的强度检测聚焦误差信号， 通过光学检测器，使用聚焦误差信号的幅度或频率来识别目标数据层，并且通过沿与物镜的方向相反的方向移动物镜将光束聚焦在目标数据层上 最初动了。