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：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：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：US20090180372A1

公开(公告)日：2009-07-16

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：US08094531B2

公开(公告)日：2012-01-10

申请号：US12108827

申请日：2008-04-24

申请人： In-joo Kim ,  Tatsuhiro Otsuka

发明人： In-joo Kim ,  Tatsuhiro Otsuka

IPC分类号： G11B20/18 ,  G11B7/00

CPC分类号： G11B20/18 ,  G11B7/0906 ,  G11B2220/2541

摘要： An apparatus for detecting a tracking error signal includes an optical detector to receive light beams reflected from an optical disc and having a plurality of detecting regions; and a phase difference extracting unit to extract a phase difference between a pair of optical signals output from the optical detector, wherein the phase difference extracting unit repeatedly moves a first graph representing one optical signal from among the pair of optical signals by a predetermined distance with respect to a second graph representing another optical signal from among the pair of optical signals, the first and second graph represent optical signal values with respect to t-axis, adds differences between optical signal values of the first graph and optical signal values of the second graph corresponding to predetermined positions of the t-axis, the adding differences is repeated for each of the repeatedly moved positions of the first graph, and outputs a moved distance of a position where the added value is smallest as a phase difference.

摘要翻译： 用于检测跟踪误差信号的装置包括光检测器，用于接收从光盘反射并具有多个检测区域的光束; 以及相位差提取单元，用于提取从所述光学检测器输出的一对光信号之间的相位差，其中所述相位差提取单元将表示来自所述一对光信号之中的一个光信号的第一曲线反复移动预定距离， 对于表示来自一对光信号中的另一光信号的第二图，第一和第二图表示相对于t轴的光信号值，将第一图的光信号值和第二图的光信号值之间的差加上 对应于t轴的预定位置的图形，对于第一曲线的每个重复移动的位置重复相加差，并且将相加值最小的位置的移动距离作为相位差输出。

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：US20100061203A1

公开(公告)日：2010-03-11

申请号：US12551701

申请日：2009-09-01

申请人： In-joo Kim ,  Young-Jae Park ,  Jae-Cheol Bae

发明人： In-joo Kim ,  Young-Jae Park ,  Jae-Cheol Bae

IPC分类号： G11B7/135 ,  G11B7/26

CPC分类号： G11B7/0938 ,  G11B7/00781 ,  G11B7/083 ,  G11B7/08564 ,  G11B7/0908 ,  G11B7/1378 ,  G11B7/24044 ,  G11B2007/0009 ,  G11B2007/13727

摘要： Provided are a method and apparatus for recording and/or reproducing data into and/or from an optical disk. The apparatus includes a reference beam optical system to form a focus of a reference beam in an optical data storage layer of the optical disk and including an objective lens; a signal beam optical system to form a focus of a signal beam in the optical data storage layer and also including the objective lens; and a servo optical system to project a servo beam onto the optical disk, receiving a reflection servo beam which is reflected on the optical disk, and performing focusing and tracking control on the objective lens. The reference beam optical system includes a first focus mover to move the focus of the reference beam, and the signal beam optical system includes a second focus mover to move the focus of the signal beam. The data is recorded into a plurality of recording layers in the optical data storage layer by moving a first focus position, at which the foci of the reference beam and the signal beam are located, in a thickness direction of the optical data storage layer, which is a focusing direction.

摘要翻译： 提供了一种用于在光盘中记录和/或再现数据的方法和装置。 该装置包括：参考光束光学系统，用于在光盘的光学数据存储层中形成参考光束的焦点，并包括物镜; 信号光束光学系统，用于在光学数据存储层中形成信号束的焦点，并且还包括物镜; 以及将伺服光束投射到光盘上的伺服光学系统，接收在光盘上反射的反射伺服光束，并对物镜进行聚焦和跟踪控制。 参考光束光学系统包括用于移动参考光束的焦点的第一聚焦移动器，并且信号光束光学系统包括第二聚焦移动器以移动信号光束的焦点。 通过在光学数据存储层的厚度方向上移动参考光束和信号光束所在的第一焦点位置，将数据记录在光学数据存储层中的多个记录层中， 是聚焦方向。

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。