公开(公告)号：US07916586B2

公开(公告)日：2011-03-29

申请号：US12128006

申请日：2008-05-28

申请人： An-sik Jeong ,  Jong-hyun Shin ,  In-joo Kim ,  Mu-kun An

发明人： An-sik Jeong ,  Jong-hyun Shin ,  In-joo Kim ,  Mu-kun An

IPC分类号： G11B7/00

CPC分类号： G11B7/1387 ,  G11B7/0908 ,  G11B7/0941

摘要： A near field optical recording/reproducing apparatus includes a light source, an objective lens to form a spot by focusing light emitted from the light source, a solid immersion lens to generate an evanescent wave by using the spot formed by the objective lens, a photodetector to measure an amplitude of a gap error signal that is totally reflected by the solid immersion lens, and an operating unit to generate a normalized gap error signal by using an amplitude of a driving signal applied to the light source and the amplitude of the gap error signal measured by the photodetector.

摘要翻译： 近场光学记录/再现装置包括光源，通过聚焦从光源发出的光来形成斑点的物镜，通过使用由物镜形成的斑点产生ev逝波的固体浸没透镜，光电检测器 测量由固体浸没透镜全反射的间隙误差信号的幅度，以及通过使用施加到光源的驱动信号的幅度和间隙误差的振幅来产生归一化间隙误差信号的操作单元 信号由光电检测器测量。

公开(公告)号：US07924674B2

公开(公告)日：2011-04-12

申请号：US11690357

申请日：2007-03-23

申请人： Wook-yeon Hwang ,  Kyung-geun Lee ,  Tatsuhiro Otsuka ,  An-sik Jeong ,  In-joo Kim

发明人： Wook-yeon Hwang ,  Kyung-geun Lee ,  Tatsuhiro Otsuka ,  An-sik Jeong ,  In-joo Kim

IPC分类号： G11B7/00

CPC分类号： G11B7/0062

摘要： A recording method, a recording apparatus, and an optical recording medium that can improve quality of a signal reproduced from a high multi-speed recording medium. The recording method includes generating a box type recording pattern including a first pulse, which has a duration determined according to a length of a recording mark and which has a first power level, and a second pulse which has a second power level different from that of the first power level, and recording data according to the box type recording pattern.

摘要翻译： 一种记录方法，记录装置和光学记录介质，其可以提高从高速多记录介质再现的信号的质量。 记录方法包括生成包括具有根据记录标记的长度确定并具有第一功率电平的持续时间的第一脉冲的第一脉冲和第二脉冲，该第二脉冲具有与第一脉冲的第二功率电平不同的第二脉冲， 第一功率电平，以及根据盒式记录模式记录数据。

公开(公告)号：US20080056081A1

公开(公告)日：2008-03-06

申请号：US11684209

申请日：2007-03-09

申请人： Tatsuhiro Otsuka ,  Kyung-geun Lee ,  An-sik Jeong ,  In-joo Kim

发明人： Tatsuhiro Otsuka ,  Kyung-geun Lee ,  An-sik Jeong ,  In-joo Kim

IPC分类号： G11B7/0037

CPC分类号： G11B7/0906 ,  G11B7/131 ,  G11B2007/0013

摘要： An apparatus and method for generating a tracking error signal (TES). A low level TES is prevented from being generated due to noise in an optical disk drive for reproducing a high-density multi-layered optical disk. The apparatus includes: an N-split optical reception element to receive light reflected by a disk loaded in the optical disk drive, a phase difference signal detection module to detect a plurality of phase difference signals using signals output from the N-split optical reception element, a pulse width modulation module to modulate pulse widths of the plurality of phase difference signals so that the pulse widths of the plurality of phase difference signals are magnified, and a difference detector to detect a difference between the plurality of phase difference signals whose pulse widths are modulated and outputting the detected difference as the TES. N may be a positive integer.

摘要翻译： 一种用于产生跟踪误差信号（TES）的装置和方法。 由于用于再现高密度多层光盘的光盘驱动器中的噪声，防止产生低电平TES。 该装置包括：N分割光接收元件，用于接收由装载在光盘驱动器中的光反射的光;相差信号检测模块，用于使用从N分割光接收元件输出的信号来检测多个相位差信号 用于调制多个相位差信号的脉冲宽度的脉冲宽度调制模块，使多个相位差信号的脉冲宽度被放大;差分检测器，用于检测多个相位差信号的脉冲宽度 被调制并输出检测到的差异作为TES。 N可以是正整数。

公开(公告)号：US20070247993A1

公开(公告)日：2007-10-25

申请号：US11690357

申请日：2007-03-23

申请人： Wook-yeon HWANG ,  Kyung-geun Lee ,  Tatsuhiro Otsuka ,  An-sik Jeong ,  In-joo Kim

发明人： Wook-yeon HWANG ,  Kyung-geun Lee ,  Tatsuhiro Otsuka ,  An-sik Jeong ,  In-joo Kim

IPC分类号： G11B7/0045

CPC分类号： G11B7/0062

摘要： A recording method, a recording apparatus, and an optical recording medium that can improve quality of a signal reproduced from a high multi-speed recording medium. The recording method includes generating a box type recording pattern including a first pulse, which has a duration determined according to a length of a recording mark and which has a first power level, and a second pulse which has a second power level different from that of the first power level, and recording data according to the box type recording pattern.

摘要翻译： 一种记录方法，记录装置和光学记录介质，其可以提高从高速多记录介质再现的信号的质量。 记录方法包括生成包括具有根据记录标记的长度确定并具有第一功率电平的持续时间的第一脉冲的第一脉冲和第二脉冲，该第二脉冲具有与第一脉冲的第二功率电平不同的第二脉冲， 第一功率电平，以及根据盒式记录模式记录数据。

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。

公开(公告)号：US20090016179A1

公开(公告)日：2009-01-15

申请号：US11961120

申请日：2007-12-20

申请人： An-sik Jeong ,  Jong-hyun Shin ,  Jin-kyung Lee

发明人： An-sik Jeong ,  Jong-hyun Shin ,  Jin-kyung Lee

IPC分类号： G11B7/00

CPC分类号： G11B7/08511 ,  G11B7/1374 ,  G11B7/1387 ,  G11B2007/13727

摘要： A near-field optical disk apparatus, which can perform stable focus pull-in even when overshoot occurs, and a focus pull-in method, of which the method includes: raising an actuator, and monitoring and determining whether light focused on a disk is near-field light; holding or storing a driving voltage of the actuator if the light focused on the disk is the near-field light; raising the actuator, and determining a maximum driving voltage of the actuator; and performing focus pull-in while lowering the actuator in an interval where a driving voltage of the actuator is between the maximum driving voltage and the held or stored driving voltage.

摘要翻译： 即使发生过冲也能够进行稳定的焦点拉入的近场光盘装置以及聚焦引入方法，其特征在于，包括：提升致动器，并且监视和确定光聚焦在光盘上是否是 近场光; 如果聚焦在盘上的光是近场光，则保持或存储致动器的驱动电压; 提升致动器，并确定致动器的最大驱动电压; 并且在致动器的驱动电压处于最大驱动电压和所保持或存储的驱动电压之间的间隔中，同时降低致动器的同时进行聚焦拉入。

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。

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：US08149670B2

公开(公告)日：2012-04-03

申请号：US12033994

申请日：2008-02-20

申请人： Jong-hyun Shin ,  An-sik Jeong

发明人： Jong-hyun Shin ,  An-sik Jeong

IPC分类号： G11B7/00

CPC分类号： G11B7/08511 ,  G11B7/1387

摘要： An optical disk apparatus includes a light focusing element arranged to face a disk and to focus light emitted from a light source on the disk, an actuator to move the light focusing element towards and away from the disk according to an actuator driving voltage, a light intensity detection unit to detect an intensity of light reflected by the light focusing element and generate a gap error signal based on the detected intensity, a servo unit to generate the actuator driving voltage and a predetermined threshold voltage based on the gap error signal generated by the light intensity detection unit and to provide the actuator driving voltage to the actuator, a distance detection unit to detect a first distance at which the actuator driving voltage is maintained when the threshold voltage is detected using the gap error signal and to detect a second distance at which a gap between the light focusing element and the disk is shorter than the first distance and at which a gap servo operation is started based on the gap error signal; and a control unit to control the servo unit to start the gap servo operation based on the detected first and second distances.

摘要翻译： 一种光盘装置，包括：光聚焦元件，被配置为面对盘并将从光源发射的光聚焦在光盘上;致动器，用于根据致动器驱动电压使光聚焦元件朝向和远离光盘移动;光 强度检测单元，用于检测由所述光聚焦元件反射的光的强度，并且基于所检测的强度产生间隙误差信号;伺服单元，基于由所述检测强度产生的所述间隙误差信号产生所述致动器驱动电压和预定阈值电压; 光强检测单元，并且向致动器提供致动器驱动电压;距离检测单元，用于检测使用间隙误差信号检测阈值电压时保持致动器驱动电压的第一距离，并且检测第二距离 光聚焦元件和光盘之间的间隙比第一距离短，间隙伺服操作 基于间隙误差信号启动; 以及控制单元，用于基于检测到的第一和第二距离来控制伺服单元开始间隙伺服操作。

公开(公告)号：US20090059753A1

公开(公告)日：2009-03-05

申请号：US12033994

申请日：2008-02-20

申请人： Jong-hyun SHIN ,  An-sik Jeong

发明人： Jong-hyun SHIN ,  An-sik Jeong

IPC分类号： G11B5/58

CPC分类号： G11B7/08511 ,  G11B7/1387

摘要： An optical disk apparatus includes a light focusing element arranged to face a disk and to focus light emitted from a light source on the disk, an actuator to move the light focusing element towards and away from the disk according to an actuator driving voltage, a light intensity detection unit to detect an intensity of light reflected by the light focusing element and generate a gap error signal based on the detected intensity, a servo unit to generate the actuator driving voltage and a predetermined threshold voltage based on the gap error signal generated by the light intensity detection unit and to provide the actuator driving voltage to the actuator, a distance detection unit to detect a first distance at which the actuator driving voltage is maintained when the threshold voltage is detected using the gap error signal and to detect a second distance at which a gap between the light focusing element and the disk is shorter than the first distance and at which a gap servo operation is started based on the gap error signal; and a control unit to control the servo unit to start the gap servo operation based on the detected first and second distances.

摘要翻译： 一种光盘装置，包括：光聚焦元件，被配置为面对盘并将从光源发射的光聚焦在光盘上;致动器，用于根据致动器驱动电压使光聚焦元件朝向和远离光盘移动;光 强度检测单元，用于检测由所述光聚焦元件反射的光的强度，并且基于所检测的强度产生间隙误差信号;伺服单元，基于由所述检测强度产生的所述间隙误差信号产生所述致动器驱动电压和预定阈值电压; 光强检测单元，并且向致动器提供致动器驱动电压;距离检测单元，用于检测使用间隙误差信号检测阈值电压时保持致动器驱动电压的第一距离，并且检测第二距离 光聚焦元件和光盘之间的间隙比第一距离短，间隙伺服操作 基于间隙误差信号启动; 以及控制单元，用于基于检测到的第一和第二距离来控制伺服单元开始间隙伺服操作。