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    Phase compensator and compatible optical pickup using the phase compensator
    3.
    发明授权
    Phase compensator and compatible optical pickup using the phase compensator 有权
    相位补偿器和使用相位补偿器的兼容光学拾取器

    公开(公告)号：US07180846B2

    公开(公告)日：2007-02-20

    申请号：US10284415

    申请日：2002-10-31

    申请人： Tae-kyung Kim ,  Young-man Ahn ,  Hae-jung Suh ,  Jin-kyung Lee ,  Jong-bae Kim ,  Chong-sam Chung

    发明人： Tae-kyung Kim ,  Young-man Ahn ,  Hae-jung Suh ,  Jin-kyung Lee ,  Jong-bae Kim ,  Chong-sam Chung

    IPC分类号： G02B5/18

    CPC分类号： G11B7/1275 ,  G11B7/1367 ,  G11B7/13922 ,  G11B2007/0006

    摘要： A compatible optical pickup for recording and/or reproducing information on/from multiple kinds of optical discs having different thicknesses by selectively using source lights of respective different wavelengths corresponding to a kind of disc and using a common objective lens. At least one phase compensator, which compensates a phase of a light having a particular wavelength to correct for spherical aberration due to a thickness difference between the kinds of optical discs and/or chromatic aberration due to a wavelength difference between the required source lights, is positioned between the source lights and an entrance pupil of the objective lens. Each phase compensator compensates light of at least one wavelength and passes light of at least one other wavelength without significant relative phase alteration. By using two phase compensators, the optical pickup may be made compatible with at least three kinds of optical discs.

    摘要翻译： 一种兼容的光学拾取器，用于通过选择性地使用对应于一种光盘的各种不同波长的光源并使用公共物镜来在具有不同厚度的多种光盘上记录和/或再现信息。 至少一个相位补偿器补偿具有特定波长的光的相位，以校正由于各种光盘之间的厚度差导致的球面像差和/或由于所需源光之间的波长差导致的色差。 位于源光和物镜的入射光瞳之间。 每个相位补偿器补偿至少一个波长的光并且传递至少一个其它波长的光，而没有显着的相对相位变化。 通过使用两个相位补偿器，光拾取器可以与至少三种光盘相兼容。

    Optical recording medium recordable on land and groove tracks
    4.
    发明授权
    Optical recording medium recordable on land and groove tracks 失效
    光盘记录介质可在陆地和凹槽轨道上记录

    公开(公告)号：US06807144B2

    公开(公告)日：2004-10-19

    申请号：US10157014

    申请日：2002-05-30

    申请人： Tae-kyung Kim ,  Young-man Ahn ,  Chong-sam Chung ,  Jin-kyung Lee ,  Jong-bae Kim ,  Du-seop Yoon

    发明人： Tae-kyung Kim ,  Young-man Ahn ,  Chong-sam Chung ,  Jin-kyung Lee ,  Jong-bae Kim ,  Du-seop Yoon

    IPC分类号： G11B700

    CPC分类号： G11B27/24 ,  G11B7/00718 ,  G11B7/24082 ,  G11B2220/216 ,  G11B2220/2575

    摘要： An optical recording medium having groove tracks and land tracks, first wobbles formed along both sidewalls of each of the groove tracks, second wobbles formed along both sidewalls of each of the land tracks and which are independent of the formation of the first wobble. A middle portion is formed at a predetermined position on each of the sidewalls between adjacent pairs of the land and groove tracks. This optical recording medium can significantly reduce the non-recordable area as compared to conventional optical recording media, resulting in a great improvement in recording density.

    摘要翻译： 一种光记录介质，具有凹槽轨迹和凹槽轨迹，沿着每个凹槽轨道的两个侧壁形成第一摆动，沿着每个凸台轨道的两个侧壁形成第二摆动，并且独立于第一摆动的形成。 中间部分形成在相邻的脊和凹槽轨道对之间的每个侧壁上的预定位置处。 与常规光学记录介质相比，该光学记录介质可以显着地减少不可记录区域，从而导致记录密度的极大提高。

    Optical head and method of adjusting optical path thereof
    5.
    发明授权
    Optical head and method of adjusting optical path thereof 失效
    光头及其光路调整方法

    公开(公告)号：US06847499B2

    公开(公告)日：2005-01-25

    申请号：US10460670

    申请日：2003-06-13

    申请人： Jong-chul Choi ,  Jin-kyung Lee ,  Chong-sam Chung ,  Tae-kyung Kim ,  Kwang Kim ,  Jin-won Lee

    发明人： Jong-chul Choi ,  Jin-kyung Lee ,  Chong-sam Chung ,  Tae-kyung Kim ,  Kwang Kim ,  Jin-won Lee

    IPC分类号： G11B7/08 ,  G11B7/12 ,  G11B7/135 ,  G11B7/22 ,  G02B7/02

    CPC分类号： G11B7/22 ,  G11B7/123

    摘要： An optical head includes a substrate, a laser diode, a photodetector, an objective lens, a prism, and an optical element. The laser diode is installed on the substrate and emits light. The photodetector is installed on the substrate and receives the light. The objective lens is installed on a first side of the substrate and focuses the light emitted from the laser diode onto a recording surface of a disc. The prism is installed on a second side of the substrate, transmits the light emitted from the laser diode toward the objective lens, and transmits the light reflected from the recording surface toward the photodetector. The optical element adjusts an optical path formed between the substrate and the prism.

    摘要翻译： 光头包括基板，激光二极管，光电检测器，物镜，棱镜和光学元件。 激光二极管安装在基板上并发光。 光电检测器安装在基板上并接收光。 物镜安装在基板的第一侧上，并将从激光二极管发出的光聚焦到光盘的记录表面上。 棱镜安装在基板的第二面上，将从激光二极管发射的光透射到物镜，并将从记录表面反射的光透射到光电检测器。 光学元件调节在基板和棱镜之间形成的光路。

    Optical disc apparatus and method of reproducing a wobble signal
    7.
    发明授权
    Optical disc apparatus and method of reproducing a wobble signal 失效
    光盘装置和再现摆动信号的方法

    公开(公告)号：US07266074B2

    公开(公告)日：2007-09-04

    申请号：US10183969

    申请日：2002-06-28

    申请人： Tae-kyung Kim ,  Young-man Ahn ,  Jong-bae Kim ,  Jin-kyung Lee ,  Chong-sam Chung

    发明人： Tae-kyung Kim ,  Young-man Ahn ,  Jong-bae Kim ,  Jin-kyung Lee ,  Chong-sam Chung

    IPC分类号： G11B7/005

    CPC分类号： G11B27/24 ,  G11B7/0053 ,  G11B7/131 ,  G11B7/1381 ,  G11B7/24082 ,  G11B20/1403 ,  G11B27/3027 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2545 ,  G11B2220/2562

    摘要： An optical disc apparatus and a wobble signal detection method in which a light beam projected onto an optical disc and reflected by the optical disc is divided into at least four light regions in the direction corresponding to the radial direction of the optical disc to detect the light regions, and a wobble signal is detected by performing a subtraction on first and second difference signals, the first difference signal obtained by performing a subtraction on detection signals for the inner light regions of the divided and/or detected light beam and the second difference signal obtained by performing a subtraction on detection signals for the outer light regions of the divided and/or detected light beam. Accordingly, when a wobble signal is reproduced from an optical disc manufactured by a wobble modulation manner, a wobble signal is prevented from being degraded due to the interference (cross talk) from the wobbles of adjacent tracks, even though the track pitch of the optical disc is reduced to improve the recording density.

    摘要翻译： 一种光盘装置和摆动信号检测方法，其中投射到光盘上并被光盘反射的光束在与光盘的径向对应的方向上被划分为至少四个光区域，以检测光 区域，并且通过对第一和第二差分信号执行减法来检测摆动信号，通过对分割和/或检测光束的内部光区域的检测信号进行减法而得到的第一差分信号和第二差分信号 通过对分割和/或检测到的光束的外部光区域的检测信号进行减法而获得。 因此，当从由摆动调制方式制造的光盘再现摆动信号时，由于相邻轨道的摆动引起的干扰（串扰），摆动信号被防止掉，即使光学信号的轨道间距 减少光盘以提高记录密度。

    Method and apparatus for reproducing data of super resolution information storage medium
    8.
    发明申请
    Method and apparatus for reproducing data of super resolution information storage medium 失效
    用于再现超分辨率信息存储介质的数据的方法和装置

    公开(公告)号：US20060002281A1

    公开(公告)日：2006-01-05

    申请号：US11168336

    申请日：2005-06-29

    申请人： Jin-kyung Lee ,  Joo-ho Kim ,  Chong-sam Chung ,  In-oh Hwang ,  Kiu-hae Jung ,  Hyun-ki Kim

    发明人： Jin-kyung Lee ,  Joo-ho Kim ,  Chong-sam Chung ,  In-oh Hwang ,  Kiu-hae Jung ,  Hyun-ki Kim

    IPC分类号： G11B7/00

    CPC分类号： G11B7/005 ,  G11B7/1353 ,  G11B7/24065 ,  G11B7/257

    摘要： A data reproducing method reproducing data recorded in a super resolution information storage medium in a form of marks having magnitudes less than a resolving power of an incident light beam, and an apparatus thereof. The data reproducing method includes irradiating a first beam having a resolving power causing a super resolution phenomenon and a second beam having a resolving power not causing a super resolution phenomenon into different places on the information storage medium, detecting a first reproduction signal based on the first beam and a second reproduction signal based on the second beam, and compensating for and calculating a temporal delay between the first reproduction signal and the second reproduction signal. Therefore, a signal reflected from a peripheral area of a reproduction beam spot other than a super resolution area can be excluded, thereby improving reproduction signal characteristics.

    摘要翻译： 一种数据再现方法，其以大于小于入射光束分辨能力的标记的形式，再现记录在超分辨率信息存储介质中的数据及其装置。 数据再现方法包括将具有超分辨率现象的分辨率的第一光束和不具有超分辨率现象的分辨率的第二光束照射到信息存储介质上的不同位置，基于第一光束检测第一再现信号 光束和基于第二光束的第二再现信号，并且补偿并计算第一再现信号和第二再现信号之间的时间延迟。 因此，可以排除从超分辨率区域以外的再现光束点的周边区域反射的信号，从而提高再现信号特性。

    Optical disc apparatus and method of driving the same
    9.
    发明授权
    Optical disc apparatus and method of driving the same 有权
    光盘装置及其驱动方法

    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。

    OPTICAL DISC APPARATUS AND METHOD OF DRIVING THE SAME
    10.
    发明申请
    OPTICAL DISC APPARATUS AND METHOD OF DRIVING THE SAME 有权
    光盘设备及其驱动方法

    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。