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1. 发明申请

US20080165648A1 METHOD OF IMPROVING DEFECT COUNTERMEASURE OF APPARATUS FOR REPRODUCING OPTICAL INFORMATION STORAGE MEDIUM 审中-公开
标题翻译：改进光学信息存储介质设备缺陷计数方法
公开(公告)号：US20080165648A1
公开(公告)日：2008-07-10
申请号：US11855270
申请日：2007-09-14
申请人： An-sik JEONG , Jong-hyun Shin , Tatsuhiro Otsuka , Young-Jae Park , Sung-Hyun Kim
发明人： An-sik JEONG , Jong-hyun Shin , Tatsuhiro Otsuka , Young-Jae Park , Sung-Hyun Kim
IPC分类号： G11B5/09
CPC分类号： G11B7/00375 , G11B7/094
摘要： A method of improving a defect countermeasure of an apparatus for reproducing an optical information storage medium. The method includes generating a defect detection signal corresponding to a defect duration from an RF signal input from an optical pickup, outputting a servo hold signal by performing an AND operation of the defect detection signal and a predetermined pulse width modulation signal, and if reproduction fails in a servo hold on state, switching the servo hold on state to a servo hold off state, outputting the servo hold signal again by reflecting a time delay on a pulse width of the servo hold signal when entering into the defect duration again, and adding track and focus offsets to a held servo value of the time delayed servo hold on duration. Accordingly, a countermeasure of a case where normal data reading fails due to a defect can be improved.
摘要翻译：一种改善用于再现光学信息存储介质的设备的缺陷对策的方法。该方法包括从从光学拾取器输入的RF信号产生与缺陷持续时间对应的缺陷检测信号，通过执行缺陷检测信号和预定脉冲宽度调制信号的“与”运算，输出伺服保持信号，如果再现失败在伺服保持打开状态下，将伺服保持打开状态切换到伺服保持关闭状态，通过在再次进入缺陷持续时间期间反映伺服保持信号的脉冲宽度上的时间延迟再次输出伺服保持信号，并且添加跟踪和对焦偏移到时间延迟伺服保持持续时间的保持伺服值。因此，可以提高由于缺陷导致正常数据读取失败的情况的对策。

2. 发明授权

US07920449B2 Method of controlling focus of optical information storage media recording and/or reproduction apparatus and apparatus therefor 有权
标题翻译：控制光信息存储介质记录和/或再现装置及其装置的焦点的方法
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。

3. 发明申请

US20080192591A1 METHOD OF CONTROLLING FOCUS OF OPTICAL INFORMATION STORAGE MEDIA RECORDING AND/OR REPRODUCTION APPARATUS AND APPARATUS THEREFOR 有权
标题翻译：控制光信息存储媒体记录和/或复制装置及其装置的方法
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。

4. 发明申请

US20090154309A1 NEAR-FIELD GAP PULL-IN METHOD AND OPTICAL DISC APPARATUS THEREFOR 失效
标题翻译：近场GAP拉拔方法和光盘装置
公开(公告)号：US20090154309A1
公开(公告)日：2009-06-18
申请号：US12180603
申请日：2008-07-28
申请人： An-sik JEONG , Jong-hyun Shin , Kyung-geun Lee , Tatsuhiro Otsuka
发明人： An-sik JEONG , Jong-hyun Shin , Kyung-geun Lee , Tatsuhiro Otsuka
IPC分类号： G11B7/00
CPC分类号： G11B7/0908 , G11B2007/13727
摘要： A gap pull-in method and an optical disc apparatus. Whether light condensed on a disc as an actuator ascends is near-field light is determined using a gap error signal. The range of an actuator driving voltage value during a section where the decrease rate of the gap error signal is constant is obtained when it is determined that the light condensed on the disc is near-field light. Gap pull-in is performed on the disc during a section where the actuator driving voltage value is within the obtained range.
摘要翻译：间隙引入方法和光盘装置。在作为执行器上升的光盘上的光聚光是使用间隙误差信号确定的近场光。当确定在盘上聚光的光是近场光时，获得在间隙误差信号的减小率恒定的部分期间的致动器驱动电压值的范围。在执行器驱动电压值在所获得的范围内的部分期间，在盘上执行间隙拉入。

5. 发明授权

US07957233B2 Near-field gap pull-in method and optical disc apparatus therefor 失效
标题翻译：近场间隙插入法及其光盘装置
公开(公告)号：US07957233B2
公开(公告)日：2011-06-07
申请号：US12180603
申请日：2008-07-28
申请人： An-sik Jeong , Jong-hyun Shin , Kyung-geun Lee , Tatsuhiro Otsuka
发明人： An-sik Jeong , Jong-hyun Shin , Kyung-geun Lee , Tatsuhiro Otsuka
IPC分类号： G11B7/00
CPC分类号： G11B7/0908 , G11B2007/13727
摘要： A gap pull-in method and an optical disc apparatus. Whether light condensed on a disc as an actuator ascends is near-field light is determined using a gap error signal. The range of an actuator driving voltage value during a section where the decrease rate of the gap error signal is constant is obtained when it is determined that the light condensed on the disc is near-field light. Gap pull-in is performed on the disc during a section where the actuator driving voltage value is within the obtained range.
摘要翻译：间隙引入方法和光盘装置。在作为执行器上升的光盘上的光聚光是使用间隙误差信号确定的近场光。当确定在盘上聚光的光是近场光时，获得在间隙误差信号的减小率恒定的部分期间的致动器驱动电压值的范围。在执行器驱动电压值在所获得的范围内的部分期间，在盘上执行间隙拉入。

6. 发明申请

US20080068941A1 METHOD OF PROCESSING DEFECT DETECTION SIGNAL IN RECORDING AND/OR REPRODUCING APPARATUS THAT RECORDS AND/OR REPRODUCES OPTICAL INFORMATION STORAGE MEDIUM 审中-公开
标题翻译：记录和/或再现记录和/或复制光信息存储介质的缺陷检测信号的处理方法
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。

7. 发明申请

US20080089193A1 APPARATUS AND METHOD FOR CONTROLLING FOCUS JUMP BETWEEN RECORDING LAYERS IN HIGH-DENSITY MULTI-LAYER DISK 审中-公开
标题翻译：用于控制高密度多层盘中记录层之间的聚焦点的装置和方法
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。

8. 发明申请

US20080181062A1 METHOD AND APPARATUS FOR CONTROLLING FOCUS OF AN OPTICAL INFORMATION STORAGE MEDIUM 审中-公开
标题翻译：用于控制光信息存储介质聚焦的方法和装置
公开(公告)号：US20080181062A1
公开(公告)日：2008-07-31
申请号：US11957663
申请日：2007-12-17
申请人： Sung-hyun KIM , Young-jae Park , Tatsuhiro Otsuka
发明人： Sung-hyun KIM , Young-jae Park , Tatsuhiro Otsuka
IPC分类号： G11B7/00
CPC分类号： G11B7/08511 , G11B7/13925 , G11B7/24038 , G11B2007/0013
摘要： A method and apparatus for controlling a focus of an optical disk in an optical disk recording/reproducing apparatus are provided. A method of controlling focusing onto an optical information storage medium having a plurality of data layers during an interlayer jump by moving an object lens up and down includes receiving a focus jump command for a focus jump from a current data layer to a target data layer, performing spherical aberration correction on the target data layer, holding a focusing servo with respect to the current data layer, and performing the focus jump to the target data layer in which the performing of the focus jump includes applying an acceleration pulse to a focus control signal for controlling driving of the object lens, and terminating the application of the acceleration pulse when the level of a sum signal resulting from the summation of the amplitude of light reflected from the optical information storage medium and collected by a light detector is less than a predetermined level. As a result, the focus jump can be performed rapidly and accurately. Moreover, by performing spherical aberration correction again after the focus jump, compatibility among various types of optical information storage media can be increased.
摘要翻译：提供了一种用于控制光盘记录/再现装置中的光盘的焦点的方法和装置。通过上下移动物镜在层间跳跃期间将焦点控制在具有多个数据层的光学信息存储介质上的方法包括：从聚焦跳跃接收目标数据层到目标数据层的聚焦跳转命令，在目标数据层上执行球面像差校正，保持相对于当前数据层的聚焦伺服，以及执行聚焦跳转到目标数据层，其中执行聚焦跳跃包括将加速度脉冲施加到聚焦控制信号用于控制物镜的驱动，并且当从光信息存储介质反射并由光检测器收集的光的振幅的总和得到的和信号的电平小于预定值时终止加速度脉冲的施加水平。因此，可以快速，准确地进行焦点跳跃。此外，通过在聚焦跳转之后再次进行球面像差校正，可以增加各种类型的光学信息存储介质之间的兼容性。

9. 发明申请

US20080094953A1 FOCUS PULL-IN METHOD AND OPTICAL DISC DRIVE THEREOF 审中-公开
标题翻译：聚焦拉拔方法和光盘驱动器
公开(公告)号：US20080094953A1
公开(公告)日：2008-04-24
申请号：US11746852
申请日：2007-05-10
申请人： Young-Jae Park , Tatsuhiro Otsuka , Sung-hyun Kim
发明人： Young-Jae Park , Tatsuhiro Otsuka , Sung-hyun Kim
IPC分类号： G11B7/09
CPC分类号： G11B7/08511 , G11B2007/0006
摘要： A focus pull-in method to perform an accurate focus pull-in operation in an optical disc drive using a holographic optical element (HOE) in consideration of a pseudo s-curve and an optical disc drive capable of performing the focus pull-in method, the method comprising checking whether a pseudo s-curve is contained in a focus error signal that is generated when an object lens of the optical disc drive is moved upwards or downwards, and, if the pseudo s-curve is contained in the focus error signal, controlling a focus pull-in operation for a disc loaded into the optical disc drive according to detection conditions for the pseudo s-curve. Accordingly, it is possible to accurately focus the data layer even during the driving of the disc that uses a wavelength that results in a low diffractive efficiency of the HOE.
摘要翻译：考虑到伪s曲线的全息光学元件（HOE）和能够执行聚焦拉入方式的光盘驱动器在光盘驱动器中执行准确的聚焦拉入操作的聚焦拉入方法该方法包括检查当光盘驱动器的物镜向上或向下移动时产生的聚焦误差信号中是否包含伪s曲线，并且如果伪s曲线包含在聚焦误差中信号，根据伪s曲线的检测条件控制装载到光盘驱动器中的光盘的聚焦拉入操作。因此，即使在使用导致HOE的低衍射效率的波长的盘的驱动期间，也可以精确地聚焦数据层。

10. 发明授权

US07821907B2 Apparatus and method for reproducing optical disk 失效
标题翻译：用于再现光盘的装置和方法
公开(公告)号：US07821907B2
公开(公告)日：2010-10-26
申请号：US11947055
申请日：2007-11-29
申请人： In-joo Kim , Tatsuhiro Otsuka , An-sik Jeong
发明人： In-joo Kim , Tatsuhiro Otsuka , An-sik Jeong
IPC分类号： G11B7/00
CPC分类号： G11B20/10009 , G11B20/10046
摘要： An optical disk reproducing apparatus to equalize and reproduce a signal optically read from an optical disk includes a controller to determine a number of regions to divide the optical disk into according to a reproduction frequency variation corresponding to a signal quality variation, and an equalizer to filter signals optically read from the divided regions with a cut-off frequency corresponding to the reproduction frequency variation.
摘要翻译：用于对从光盘光学读取的信号进行均衡和再现的光盘再现装置包括：控制器，用于根据与信号质量变化相对应的再现频率变化来确定将光盘划分成多个区域;以及均衡器，以过滤以与再现频率变化相对应的截止频率从分割区域光学读取的信号。

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