公开(公告)号：US6167004A

公开(公告)日：2000-12-26

申请号：US433296

申请日：1999-11-03

Applicant: Yong-jae Lee ,  Tae-Kyung Kim ,  Pyong-yong Seong ,  Jang-hoon Yoo ,  Byung-ryul Ryoo ,  Yong-ki Son ,  Seok-jung Kim

Inventor： Yong-jae Lee ,  Tae-Kyung Kim ,  Pyong-yong Seong ,  Jang-hoon Yoo ,  Byung-ryul Ryoo ,  Yong-ki Son ,  Seok-jung Kim

IPC: G11B7/09 ,  G11B7/13 ,  G11B7/135 ,  G11B7/00

CPC classification number: G11B7/131 ,  G11B7/094 ,  G11B7/0943 ,  G11B7/133 ,  G11B7/1353

Abstract: An error signal detecting apparatus for an optical pickup employing a hologram grating, including a sensing lens for focusing light reflected from a recording medium, a hologram grating having first through fourth pattern regions arranged clockwise in a 2.times.2 matrix arrangement, for diffracting light incident from the sensing lens in different directions, wherein the first through fourth pattern regions a, b, c and d are formed such that a first focus of the +1st-order diffracted beams diffracted by the first and third pattern regions is relatively farther from the sensing lens than a second focus of the +1st-order diffracted beams diffracted by the second and fourth pattern regions, a photodetector disposed between the first and second focuses and having first through fourth light receiving units, for receiving the beams diffracted by the first through fourth pattern regions and independently photoelectrically converting the same, and a signal operation unit for detecting a focus error signal and/or a track error signal from detection signals of the light receiving parts. The error signal detecting apparatus can suppress generation of an offset of a focus error signal due to a change in the wavelength of a light source and an offsets of the focus error signal and track offset signal due to deviations of the photodetector.

Abstract translation: 一种用于采用全息光栅的光学拾取器的误差信号检测装置，包括用于聚焦从记录介质反射的光的感测透镜，具有以2x2矩阵排列顺时针排列的第一至第四图案区域的全息图光栅，用于衍射从 感光透镜，其中第一至第四图案区域a，b，c和d被形成为使得由第一和第三图案区域衍射的+ 1级衍射光束的第一焦点相对较远离感测透镜 比由第二和第四图案区域衍射的+ 1级衍射光束的第二焦点，设置在第一和第二焦点之间并具有第一至第四光接收单元的光电检测器，用于接收由第一至第四图案衍射的光束 区域并独立地对其进行光电转换;以及信号操作单元，用于检测聚焦误差 信号和/或来自光接收部分的检测信号的轨道误差信号。 误差信号检测装置可以抑制由于光源的波长的变化引起的聚焦误差信号的偏移的产生以及由于光电检测器的偏差引起的聚焦误差信号和光道偏移信号的偏移。

公开(公告)号：US08416670B2

公开(公告)日：2013-04-09

申请号：US12891072

申请日：2010-09-27

Applicant: Ui-yol Kim ,  Yong-jae Lee ,  Pyong-yong Seong

Inventor： Ui-yol Kim ,  Yong-jae Lee ,  Pyong-yong Seong

IPC: G11B7/135

CPC classification number: G11B7/08511 ,  G11B2007/0006 ,  G11B2007/0013

Abstract: An optical pickup device corresponding to an optical recording medium having a plurality of recording layers, and an optical drive using the device are provided. The optical pickup device includes a collimator lens disposed between an object lens and a light source. The collimator lens adjusts a focal length with respect to the optical recording medium, and the object lens focuses light passing through the collimator lens, on the optical recording medium. The object lens is optically optimized for an upper or second-upper recording layer of the optical recording medium.

Abstract translation: 提供对应于具有多个记录层的光学记录介质的光学拾取装置和使用该装置的光学驱动器。 光学拾取装置包括设置在物镜和光源之间的准直透镜。 准直透镜调整相对于光记录介质的焦距，并且物镜将通过准直透镜的光聚焦在光记录介质上。 物镜被光学优化用于光学记录介质的上部或第二上部记录层。

公开(公告)号：US08018800B2

公开(公告)日：2011-09-13

申请号：US11012732

申请日：2004-12-16

Applicant: Dae-jong Jang ,  Byung-youn Song ,  Pyong-yong Seong

Inventor： Dae-jong Jang ,  Byung-youn Song ,  Pyong-yong Seong

IPC: G11B7/00

CPC classification number: G11B7/0956 ,  G11B7/0933 ,  G11B7/0935

Abstract: A magnetic circuit and an optical recording and/or reproducing apparatus employing the magnetic circuit, having: a magnet with first and second magnetic portions adjacent to each other and opposite in polarity, and third and fourth magnetic portions surrounding the first and second magnetic portions, respectively, and have opposite polarities to the first and second magnetic portions, respectively; and at least one of a tracking coil unit or a focus coil unit. The tracking coil unit has first through third tracking coils arranged in a tracking direction so that each tracking coil interacts with two of the first through fourth magnetic portions. The focus coil unit has first through fourth focus coils, two of which are disposed in a focus direction to interact with the first and third magnetic portions, and the remaining two of which are disposed in the focus direction to interact with second and fourth magnetic portions.

Abstract translation: 一种使用磁路的磁路和光记录和/或再现装置，具有：具有彼此相邻并且极性相反的第一和第二磁性部分的磁体以及包围第一和第二磁性部分的第三和第四磁性部分， 分别具有与第一和第二磁性部分相反的极性; 以及跟踪线圈单元或聚焦线圈单元中的至少一个。 跟踪线圈单元具有沿跟踪方向布置的第一至第三跟踪线圈，使得每个跟踪线圈与第一至第四磁性部分中的两个相互作用。 聚焦线圈单元具有第一至第四聚焦线圈，其中两个聚焦线圈沿焦点方向设置以与第一和第三磁性部分相互作用，其余两个被设置在聚焦方向上以与第二和第四磁性部分相互作用 。

公开(公告)号：US20110141869A1

公开(公告)日：2011-06-16

申请号：US12963785

申请日：2010-12-09

Applicant: Ui-yol KIM ,  Yong-jae Lee ,  Pyong-yong Seong ,  Hong-kuk Kim

Inventor： Ui-yol KIM ,  Yong-jae Lee ,  Pyong-yong Seong ,  Hong-kuk Kim

IPC: G11B7/00 ,  H01L27/14

CPC classification number: G11B7/131 ,  G11B2007/0006

Abstract: An optical pickup, photodetector, and optical drive adopting the optical pickup are provided. The optical pickup may include a light emitting system having a plurality of light sources corresponding to a plurality of mediums a light receiving system including a photodetector for converting light reflected from a medium into an electrical signal. The photodetector may include first and second light receiving sensors corresponding to the plurality of mediums, each of the first and second light receiving sensors comprising a plurality of regions, each region comprising a plurality of sectors. The plurality of regions of the first and second light receiving sensors may include shared sectors that are shared by the first and second light receiving sensors and exclusive sectors that are exclusively used in the first light receiving sensor or the second light receiving sensor.

Abstract translation: 提供采用光学拾取器的光学拾取器，光电检测器和光学驱动器。 光拾取器可以包括具有对应于多个介质的多个光源的发光系统，光接收系统包括用于将从介质反射的光转换成电信号的光电检测器。 光电检测器可以包括对应于多个介质的第一和第二光接收传感器，第一和第二光接收传感器中的每一个包括多个区域，每个区域包括多个扇区。 第一和第二光接收传感器的多个区域可以包括由第一和第二光接收传感器共享的共享扇区和专门用于第一光接收传感器或第二光接收传感器的专用扇区。

公开(公告)号：US20110075535A1

公开(公告)日：2011-03-31

申请号：US12891072

申请日：2010-09-27

Applicant: Ui-yol KIM ,  Yong-jae Lee ,  Pyong-yong Seong

Inventor： Ui-yol KIM ,  Yong-jae Lee ,  Pyong-yong Seong

IPC: G11B7/12 ,  G11B7/135

CPC classification number: G11B7/08511 ,  G11B2007/0006 ,  G11B2007/0013

Abstract: An optical pickup device corresponding to an optical recording medium having a plurality of recording layers, and an optical drive using the device are provided. The optical pickup device includes a collimator lens disposed between an object lens and a light source. The collimator lens adjusts a focal length with respect to the optical recording medium, and the object lens focuses light passing through the collimator lens, on the optical recording medium. The object lens is optically optimized for an upper or second-upper recording layer of the optical recording medium.

Abstract translation: 提供对应于具有多个记录层的光学记录介质的光学拾取装置和使用该装置的光学驱动器。 光学拾取装置包括设置在物镜和光源之间的准直透镜。 准直透镜调整相对于光记录介质的焦距，并且物镜将通过准直透镜的光聚焦在光记录介质上。 物镜被光学优化用于光学记录介质的上部或第二上部记录层。

公开(公告)号：US07835235B2

公开(公告)日：2010-11-16

申请号：US11808517

申请日：2007-06-11

Applicant: Sun-mook Park ,  Ui-yol Kim ,  Jong-kook Lee ,  Pyong-yong Seong

Inventor： Sun-mook Park ,  Ui-yol Kim ,  Jong-kook Lee ,  Pyong-yong Seong

IPC: G11B7/00

CPC classification number: G11B7/0903 ,  G11B7/131 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/1378 ,  G11B2007/0006

Abstract: An optical pickup apparatus and an optical recording/reproducing system including the same, the optical pickup apparatus includes at least two optical systems for different types of optical recording media, one of objective lenses of the optical systems being offset from a central line of the optical recording medium, wherein the optical system including the offset objective lens having a diffraction grating diffracting light emitted from a light source to form a main beam and sub-beams, wherein the diffraction grating includes first and second diffraction regions having different grating patterns arranged alternately thereon, and a center of each sub-beam is arranged at a boundary of the first and second diffraction regions of the diffraction grating, and a center of the diffraction grating and an optical axis of the light source are adjusted to be coincided with each other, preventing generation of an alternating current in a Push-Pull signal of the sub-beams.

Abstract translation: 一种光学拾取装置和包括该光学拾取装置的光学记录/再现系统，该光学拾取装置包括用于不同类型的光学记录介质的至少两个光学系统，光学系统的物镜之一偏离光学中心线 其中所述光学系统包括具有衍射光栅的衍射光栅的光学系统，所述衍射光栅衍射从光源发射的光以形成主光束和子光束，其中所述衍射光栅包括交替地布置有不同格栅图案的第一和第二衍射区域 并且每个子光束的中心被布置在衍射光栅的第一和第二衍射区域的边界处，并且衍射光栅的中心和光源的光轴被调节为彼此一致， 防止在子光束的推挽信号中产生交流电。

公开(公告)号：US07478411B2

公开(公告)日：2009-01-13

申请号：US11226203

申请日：2005-09-15

Applicant: Byung-youn Song ,  Hyung-loo Kang ,  Sang-yol Yoon ,  Pyong-yong Seong ,  Young-won Lee

Inventor： Byung-youn Song ,  Hyung-loo Kang ,  Sang-yol Yoon ,  Pyong-yong Seong ,  Young-won Lee

IPC: G11B7/09 ,  G11B7/085 ,  G02B7/02

CPC classification number: G11B7/1369 ,  G11B7/0932 ,  G11B7/0956 ,  G11B7/13925 ,  H05K1/189 ,  H05K3/3405

Abstract: An optical pickup actuator including a multi-conductive suspension. The optical pickup actuator may include a base, a holder fixed to the base, a bobbin holding an object lens and having a plurality of driving coils, and a plurality of suspensions connected between the bobbin and the holder and movably supporting the bobbin toward the holder, wherein each of the suspensions may be a multi-conductive suspension including a flexible substrate and a plurality of wires, formed on the flexible substrate, applying currents to the coils.

Abstract translation: 一种包括多导电悬浮液的光学拾取器致动器。 光拾取器致动器可以包括基座，固定到基座的保持器，保持物镜并具有多个驱动线圈的线轴，以及连接在线轴和保持器之间的多个悬架，并且将线轴可动地支撑到保持器 ，其中每个悬架可以是形成在柔性基板上的向多个线圈施加电流的包括柔性基板和多根导线的多导体悬架。

公开(公告)号：US07457226B2

公开(公告)日：2008-11-25

申请号：US10937255

申请日：2004-09-10

Applicant: Won-Ik Cho ,  Pyong-yong Seong ,  Dong-ryeol Lee ,  Ki-bok Kim

Inventor： Won-Ik Cho ,  Pyong-yong Seong ,  Dong-ryeol Lee ,  Ki-bok Kim

IPC: G11B7/00

CPC classification number: G11B7/127 ,  H01L23/34 ,  H01L23/38 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A heat source having a device emitting heat, a case protecting and supporting the device, and a thermoelectric element absorbing the heat emitted from the device and dissipating the heat to an outside.

Abstract translation: 具有发热装置的热源，保护和支撑装置的壳体，以及吸收从装置发出的热并将热量散发到外部的热电元件。

公开(公告)号：US07272103B2

公开(公告)日：2007-09-18

申请号：US10751647

申请日：2004-01-06

Applicant: Sung-du Kwon ,  Jun-hyuk Lee ,  Pyong-yong Seong ,  Hyun-cheal Bang ,  Jong-koog Lee ,  Yong-jun Cho

Inventor： Sung-du Kwon ,  Jun-hyuk Lee ,  Pyong-yong Seong ,  Hyun-cheal Bang ,  Jong-koog Lee ,  Yong-jun Cho

IPC: G11B7/00

CPC classification number: G11B7/1263

Abstract: In order to improve the frequency characteristic of a laser power monitor device and the precision of laser power control when low-speed recording is performed, there is provided a laser power monitor device for an optical recording and/or reproducing apparatus, the laser power monitor device including a photo diode unit to receive part of a light emitted from a laser diode and output a current proportional to optical power, and a monitor circuit to receive the current output from the photo diode unit, convert the received current into a voltage, and outputs the voltage to an automatic laser power control circuit, and the photo diode unit includes a plurality of photo diodes connected to the monitor circuit to supply current to the monitor circuit. The laser power monitor device further includes a switch unit, wherein the switch unit is located between the photo diode unit and the monitor circuit to receive a signal on a current recording speed and switch so that the number of photo diodes supplying current to the monitor circuit is reduced as the recording speed is increased.

Abstract translation: 为了提高激光功率监视装置的频率特性和进行低速记录时的激光功率控制的精度，提供了一种用于光学记录和/或再现装置的激光功率监视装置，激光功率监视器 该装置包括：光电二极管单元，用于接收从激光二极管发射的一部分光并输出与​​光功率成比例的电流;以及监测电路，用于接收来自光电二极管单元的电流输出，将接收的电流转换成电压; 将电压输出到自动激光功率控制电路，并且光电二极管单元包括连接到监视器电路的多个光电二极管，以向监控电路提供电流。 所述激光功率监视装置还包括开关单元，其中所述开关单元位于所述光电二极管单元和所述监视器电路之间，以接收当前记录速度的信号并进行切换，使得向所述监视器电路提供电流的光电二极管的数量 随着记录速度的增加而减小。

公开(公告)号：US07206266B2

公开(公告)日：2007-04-17

申请号：US10822868

申请日：2004-04-13

Applicant: Pyong-yong Seong

Inventor： Pyong-yong Seong

IPC: G11B7/00

CPC classification number: G11B7/0903 ,  G11B7/0906 ,  G11B2007/0006

Abstract: An optical pickup, optical recording and/or reproducing apparatus including the same, and a method of realizing a tracking servo that is compatible between different types of optical data storage media. The optical recording and/or reproducing apparatus splits light from a light source into a main beam and four or more sub beams symmetrical with respect to the main beam, which are then emitted on an optical data storage medium, wherein the four or more sub beams include two first sub beams located close to the main beam and two second sub beams located away from the main beam, and detects a tracking error signal by a differential push-pull (DPP) method using detection signals of the main beam and the pair of first sub beams and of the main beam and the pair of second sub beams for ±R/RW and RAM type optical data storage media, respectively. The optical pickup and optical recording and/or reproducing apparatus makes it possible to realize a tracking servo that is compatible between ±R/RW and RAM type optical data storage media having different track pitch dimensions based on DPP.

Abstract translation: 包括其的光学拾取器，光学记录和/或再现装置以及实现在不同类型的光学数据存储介质之间兼容的跟踪伺服的方法。 光学记录和/或再现装置将光从光源分离成主光束和相对于主光束对称的四个或更多个子光束，然后在光学数据存储介质上发射，其中四个或更多个子光束 包括位于主波束附近的两个第一子波束和远离主波束的两个第二子波束，并且通过差分推挽（DPP）方法使用主波束和一对波段的检测信号来检测跟踪误差信号 分别用于±R / RW和RAM型光学数据存储介质的第一子波束和主波束和一对第二子波束。 光学拾取器和光学记录和/或再现装置使得可以实现基于DPP的具有不同轨道间距尺寸的±R / RW和RAM型光学数据存储介质之间兼容的跟踪伺服。