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公开(公告)号：US06686697B2
公开(公告)日：2004-02-03
申请号：US10281233
申请日：2002-10-28
IPC分类号： H05B4136
CPC分类号： H05B33/089 , Y02B20/341
摘要： A circuit protects a light element and prevents a breakdown of a laser diode (LD) when electric static discharge (ESD) occurs. The circuit protects the light element in a drive to control an operation of the light element, which radiates light onto a disc. Here, the drive includes a switch between an active node of the light element and a predetermined potential so that the switch is short-circuited in a normal state, but is open when the drive operates. The light element is protected from static electricity or a surge voltage in a manufacturing process thereof or under a user environment. As a result, the probability that the light element is broken down is remarkably reduced.
摘要翻译： 电路保护光元件并防止当发生静电放电（ESD）时激光二极管（LD）的击穿。 电路保护驱动器中的光元件以控制将光照射到盘上的光元件的操作。 这里，驱动器包括在光元件的主动节点和预定电位之间的开关，使得开关在正常状态下短路，但是当驱动器工作时打开。 光元件在其制造过程中或在用户环境下被保护免受静电或浪涌电压的影响。 结果，光元件分解的概率显着降低。
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2.发明授权Optical pickup for cutting off optical noise and optical recording and/or reproducing apparatus using the same 有权用于切断光学噪声的光学拾取器及使用其的光学记录和/或再现装置公开(公告)号：US07355953B2
公开(公告)日：2008-04-08
申请号：US10686785
申请日：2003-10-17
IPC分类号： G11B7/125
CPC分类号： G11B7/1395 , G11B7/1263 , G11B7/1353 , G11B2007/13727
摘要： An optical pickup includes a light source which emits light, a grating which separates a portion of the light emitted from the light source, a reflecting member which reflects another portion of the light emitted from the light source, a monitoring photodetector disposed on a traveling path of the light reflected from the reflecting member and which measures the reflected light, an optical path changer which changes an optical path of the light separated by the grating, an objective lens light which condenses the light the optical path of which is changed onto a disc, and a signal detecting photodetector which receives the light reflected from the disc.
摘要翻译： 光拾取器包括发光的光源，分离从光源发出的光的一部分的光栅，反射从光源发射的光的另一部分的反射部件，设置在行进路径上的监视光电检测器 从反射构件反射并测量反射光的光，改变由光栅分离的光的光路的光路改变器，将其光路改变为光盘的光会聚的物镜光 以及接收从盘反射的光的信号检测光电检测器。
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3.发明授权公开(公告)号：US08416672B2
公开(公告)日：2013-04-09
申请号：US12963785
申请日：2010-12-09
申请人： Ui-yol Kim , Yong-jae Lee , Pyong-yong Seong , Hong-kuk Kim
发明人： Ui-yol Kim , Yong-jae Lee , Pyong-yong Seong , Hong-kuk Kim
IPC分类号： G11B7/13
CPC分类号： G11B7/131 , G11B2007/0006
摘要： 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.
摘要翻译： 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。
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4.发明授权Method of accessing optical recording media, optical pickup device, and optical drive using the device 失效访问光学记录介质，光学拾取装置和使用该装置的光驱的方法公开(公告)号：US08416670B2
公开(公告)日：2013-04-09
申请号：US12891072
申请日：2010-09-27
申请人： Ui-yol Kim , Yong-jae Lee , Pyong-yong Seong
发明人： Ui-yol Kim , Yong-jae Lee , Pyong-yong Seong
IPC分类号： G11B7/135
CPC分类号： G11B7/08511 , G11B2007/0006 , G11B2007/0013
摘要： 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.
摘要翻译： 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。
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5.发明授权Optical pickup apparatus and optical recording/reproducing system using the same 有权光学拾取装置和使用其的光学记录/再现系统公开(公告)号：US07835235B2
公开(公告)日：2010-11-16
申请号：US11808517
申请日：2007-06-11
申请人： Sun-mook Park , Ui-yol Kim , Jong-kook Lee , Pyong-yong Seong
发明人： Sun-mook Park , Ui-yol Kim , Jong-kook Lee , Pyong-yong Seong
IPC分类号： G11B7/00
CPC分类号： G11B7/0903 , G11B7/131 , G11B7/1353 , G11B7/1374 , G11B7/1378 , G11B2007/0006
摘要： 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.
摘要翻译： 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。
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6.发明申请Compatible optical pickup and optical recording and/or reproducing apparatus employing the same 失效兼容的光学拾取器和采用该光学拾取器的光学记录和/或再现装置公开(公告)号：US20050018560A1
公开(公告)日：2005-01-27
申请号：US10897015
申请日：2004-07-23
申请人： Ui-yol Kim , Tae-kyung Kim , Chong-sam Chung , Pyong-yong Seong
发明人： Ui-yol Kim , Tae-kyung Kim , Chong-sam Chung , Pyong-yong Seong
CPC分类号： G11B7/1353 , G11B7/1275 , G11B7/1374 , G11B2007/0006
摘要： A compatible optical pickup including an optical unit and a focusing unit. The optical unit emits a short wavelength light for high-density recording media and a long wavelength light for low-density recording media, directs the short and long wavelength light to a recording medium, receives lights reflected by the recording medium, and detects an information reproduction signal and/or an error signal from the received lights. The focusing unit focuses light received from the optical unit to form a light spot on a recording surface of the recording medium, diffracts the short wavelength light into a zero order light and the long wavelength light into a second order light to be used as effective light for recording and/or reproduction. Thus, a high-density recording medium and a low-density recording medium having different thicknesses can be compatibly used.
摘要翻译： 一种兼容的光学拾取器，包括光学单元和聚焦单元。 光学单元发射用于高密度记录介质的短波长光和用于低密度记录介质的长波长光，将短波长和长波长光引导到记录介质，接收由记录介质反射的光，并检测信息 再现信号和/或来自接收到的光的误差信号。 聚焦单元将从光学单元接收的光聚焦在记录介质的记录表面上形成光点，将短波长的光衍射成零级光，将长波长的光衍射成二阶光，作为有效光 用于记录和/或再现。 因此，可以兼容使用具有不同厚度的高密度记录介质和低密度记录介质。
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7.发明申请Optical pickup apparatus and optical recording/reproducing system using the same 有权光学拾取装置和使用其的光学记录/再现系统公开(公告)号：US20080037387A1
公开(公告)日：2008-02-14
申请号：US11808517
申请日：2007-06-11
申请人： Sun-mook Park , Ui-yol Kim , Jong-kook Lee , Pyong-yong Seong
发明人： Sun-mook Park , Ui-yol Kim , Jong-kook Lee , Pyong-yong Seong
IPC分类号： G11B7/00
CPC分类号： G11B7/0903 , G11B7/131 , G11B7/1353 , G11B7/1374 , G11B7/1378 , G11B2007/0006
摘要： 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.
摘要翻译： 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。
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8.发明授权Compatible optical pickup and optical recording and/or reproducing apparatus employing the same 失效兼容的光学拾取器和采用该光学拾取器的光学记录和/或再现装置公开(公告)号：US08493831B2
公开(公告)日：2013-07-23
申请号：US10897015
申请日：2004-07-23
申请人： Ui-yol Kim , Tae-kyung Kim , Chong-sam Chung , Pyong-yong Seong
发明人： Ui-yol Kim , Tae-kyung Kim , Chong-sam Chung , Pyong-yong Seong
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/1275 , G11B7/1374 , G11B2007/0006
摘要： A compatible optical pickup including an optical unit and a focusing unit. The optical unit emits a short wavelength light for high-density recording media and a long wavelength light for low-density recording media, directs the short and long wavelength light to a recording medium, receives lights reflected by the recording medium, and detects an information reproduction signal and/or an error signal from the received lights. The focusing unit focuses light received from the optical unit to form a light spot on a recording surface of the recording medium, diffracts the short wavelength light into a zero order light and the long wavelength light into a second order light to be used as effective light for recording and/or reproduction. Thus, a high-density recording medium and a low-density recording medium having different thicknesses can be compatibly used.
摘要翻译： 一种兼容的光学拾取器，包括光学单元和聚焦单元。 光学单元发射用于高密度记录介质的短波长光和用于低密度记录介质的长波长光，将短波长和长波长光引导到记录介质，接收由记录介质反射的光，并检测信息 再现信号和/或来自接收到的光的误差信号。 聚焦单元将从光学单元接收的光聚焦在记录介质的记录表面上形成光点，将短波长的光衍射成零级光，将长波长的光衍射成二阶光，作为有效光 用于记录和/或再现。 因此，可以兼容使用具有不同厚度的高密度记录介质和低密度记录介质。
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9.发明申请公开(公告)号：US20120106311A1
公开(公告)日：2012-05-03
申请号：US13282635
申请日：2011-10-27
申请人： Ui-yol Kim , Yong-Jae Lee
发明人： Ui-yol Kim , Yong-Jae Lee
IPC分类号： G11B7/1353
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/131 , G11B7/1395 , G11B2007/0006
摘要： An optical pickup and an information storage medium system using the same. The optical pickup includes a light source that emits light having a plurality of different wavelengths. The optical pickup includes a diffraction device having a plurality of diffraction patterns corresponding to the plurality of different wavelengths to divide the light incident from the light source unit into main light and sub light. The optical pickup further includes a photo-detector having a first main light reception unit that receives the main light and a first sub light reception unit that receives the sub light so as to detect an information signal and/or an error signal by receiving reflected light. The first sub light reception unit of the photo-detector is shaped so as to reduce reception of noise sub light due to diffraction based on an undesired diffraction pattern of sub light generated the diffraction device.
摘要翻译： 一种光学拾取器和使用该拾取器的信息存储介质系统。 光学拾取器包括发射具有多个不同波长的光的光源。 光拾取器包括衍射装置，其具有对应于多个不同波长的多个衍射图案，以将从光源单元入射的光分成主光和副光。 光拾取器还包括具有接收主光的第一主光接收单元和接收子光的第一子光接收单元的光检测器，以便通过接收反射光来检测信息信号和/或误差信号 。 光检测器的第一子光接收单元被成形为基于由衍射装置产生的副光的不想要的衍射图来减少由衍射引起的噪声子光的接收。
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10.发明授权Method of controlling light, and optical pickup device and optical disk drive adopting the method 失效控制光的方法，采用该方法的光学拾取装置和光盘驱动装置公开(公告)号：US08675465B2
公开(公告)日：2014-03-18
申请号：US13178286
申请日：2011-07-07
申请人： Ui-yol Kim , Yong-jae Lee
发明人： Ui-yol Kim , Yong-jae Lee
IPC分类号： G11B7/00
CPC分类号： G11B7/1365 , G11B7/0903 , G11B7/131 , G11B2007/0006 , G11B2007/0013
摘要： An optical pickup device, an optical disk drive and method of controlling light performed by the optical pickup device are provided. The optical pickup device includes: a light transmitting system including an object lens for facing a medium having a multi recording layer for storing information, a light source system for providing a plurality of beams used to record information on or reproduce information from the multi recording layer via the light transmitting system, a light-receiving system disposed on a path of a beam reflected from the medium, and a light controller including a light control device for controlling stray light generated in the medium such that the stray light does not reach the light-receiving device.
摘要翻译： 提供一种光拾取装置，光盘驱动器和控制由光拾取装置执行的光的方法。 光拾取装置包括：光传输系统，包括用于面对具有用于存储信息的多记录层的介质的物镜;光源系统，用于提供用于从多记录层记录信息或从多记录层再现信息的多个光束 通过光传输系统，设置在从介质反射的光束的路径上的光接收系统，以及光控制器，其包括用于控制在介质中产生的杂散光的光控制装置，使得杂散光不到达光 接收装置
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