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    • 1. 发明申请
    • Encoder/decoder for OCDMA and method thereof
    • OCDMA编码器/解码器及其方法
    • US20070133991A1
    • 2007-06-14
    • US11606670
    • 2006-11-29
    • Won LeeHeuk ParkKwang Kim
    • Won LeeHeuk ParkKwang Kim
    • H04J14/00
    • H04J14/007
    • Provided are an encoder and/or decoder for an OCDMA (optical code division multiple access) and a method thereof. The encoder and/or decoder includes: a demultiplexer outputting multi-wavelength optical signals through paths varying with a wavelength using a plurality of first fused couplers having different coupling coefficients; and a multiplexer selecting the signals of predetermined wavelengths out of output signals from the demultiplexer using a plurality of second fused couplers symmetric to the plurality of first fused couplers and generating a PN code corresponding to the selected wavelengths.
    • 提供了一种用于OCDMA(光码分多址)的编码器和/或解码器及其方法。 编码器和/或解码器包括:解复用器,其通过使用具有不同耦合系数的多个第一熔接耦合器以波长变化的路径输出多波长光信号; 以及多路复用器,使用与所述多个第一融合耦合器对称的多个第二融合耦合器,从所述解复用器输出的输出信号中选择预定波长的信号,并产生对应于所选波长的PN码。
    • 4. 发明申请
    • Optical add/drop multiplexer
    • 光分插复用器
    • US20060098983A1
    • 2006-05-11
    • US11077111
    • 2005-03-09
    • Jin HanHeuk ParkKwang Kim
    • Jin HanHeuk ParkKwang Kim
    • H04J14/02
    • H04Q11/0005H04J14/0204H04J14/0205H04J14/0206H04J14/0212H04J14/0213H04J14/0221H04Q2011/0009H04Q2011/0015H04Q2011/0016H04Q2011/0024
    • The optical add/drop multiplexer of the present invention includes an optical splitting means dividing a wavelength division multiplexed optical signal into a pass path and a drop path; a first wavelength selection switching means receiving the dropped optical signal, demultiplexing the received optical signal, and switching a specific wavelength to one drop port; a channel equalizing means blocking the dropped optical signal, and passing a signal of remaining. wavelengths therethrough while causing the intensity thereof to be uniform; a second wavelength selection switching means receiving a plurality of optical signals through respective input ports, demultiplexing the received optical signals, and switching a specific wavelength to one add port; and an optical coupling means recombining an optical signal passed through the channel equalizing means and the optical signal output from the second wavelength selection switch.
    • 本发明的光分插复用器包括将波分复用光信号划分成通路和分路的光分路装置; 第一波长选择切换装置,接收丢弃的光信号,解复用接收到的光信号,并将特定波长切换到一个下降端口; 信道均衡装置阻止丢弃的光信号,并传递剩余的信号。 使其强度均匀地穿过其中; 第二波长选择切换装置,通过各个输入端口接收多个光信号,解复用接收到的光信号,并将特定波长切换到一个附加端口; 以及光耦合装置,重新组合通过信道均衡装置的光信号和从第二波长选择开关输出的光信号。
    • 5. 发明授权
    • Objective lens driving apparatus used with an optical pickup
    • 与光学拾取器一起使用的物镜驱动装置
    • US07272840B2
    • 2007-09-18
    • US10647134
    • 2003-08-25
    • Young-min CheongKwang KimDae-hwan KimJin-won Lee
    • Young-min CheongKwang KimDae-hwan KimJin-won Lee
    • G11B7/08G11B7/085G11B7/09
    • G11B7/0933G11B7/0935G11B7/0956
    • An objective lens driving apparatus used with an optical pickup includes a base, a holder provided on the base, a blade on which an objective lens is mounted, an elastic support body elastically supporting the blade and which is capable of moving with respect to the holder, a pair of magnetic members installed on the base to face each other, and a coil assembly including a focus coil, a tracking coil, and a tilt coil, the coil assembly being installed at the blade so as to be disposed between the magnetic members. Thus, coils needed to change the position of an objective lens are incorporated into a single coil assembly and are arranged between a pair of magnets, and an installation space is small so that the apparatus can be made compact.
    • 与光学拾取器一起使用的物镜驱动装置包括基座,设置在基座上的保持器,安装有物镜的刀片,弹性支撑体,其弹性地支撑刀片,并且能够相对于保持器移动 ,一对安装在基座上的磁性构件,以及包括聚焦线圈,跟踪线圈和倾斜线圈的线圈组件,线圈组件安装在叶片处,以便设置在磁性构件之间 。 因此,需要改变物镜位置的线圈被并入单个线圈组件中并且被布置在一对磁体之间,并且安装空间小,使得该装置可以被制造得紧凑。
    • 6. 发明授权
    • Objective lens driving apparatus for optical pickup
    • 用于光学拾取器的物镜驱动装置
    • US07102836B2
    • 2006-09-05
    • US10614701
    • 2003-07-08
    • Kwang KimDoo-hwan KimJin-won LeeYoung-min Cheong
    • Kwang KimDoo-hwan KimJin-won LeeYoung-min Cheong
    • G02B7/02G02B7/04G11B7/00G11B7/085
    • G11B7/0956G11B7/0932G11B7/0946
    • An objective lens driving apparatus for an optical pickup includes a blade on which an objective lens can be mounted, a plurality of elastic support members supporting the blade and capable of elastically moving with respect to the blade, and a servo mechanism driving the blade up and down, left and right, and in a rotational direction. The elastic support members are grouped into pairs arranged to face each other with respect to a center of rotation of the blade, and distances between the elastic support members in the respective pairs are substantially identical. By lessening the difference in the amount of deformation between the elastic support members supporting the blade during tilt control, the elastic support members are less likely to move in undesired directions when vibration is applied.
    • 一种用于光学拾取器的物镜驱动装置,包括可安装物镜的刀片,支撑刀片并能够相对于刀片弹性移动的多个弹性支撑部件和驱动刀片的伺服机构, 向下,向左和向右,并沿旋转方向。 弹性支撑构件被成对布置为相对于叶片的旋转中心彼此面对,并且各对中的弹性支撑构件之间的距离基本相同。 通过减少在倾斜控制期间支撑叶片的弹性支撑构件之间的变形量的差异,当施加振动时,弹性支撑构件不太可能在不期望的方向上移动。
    • 9. 发明授权
    • Actuator used with an optical pickup having plate coils and magnets
    • 驱动器与具有板簧和磁铁的光学拾取器一起使用
    • US06857127B2
    • 2005-02-15
    • US10285522
    • 2002-11-01
    • Jin-won LeeKwang KimYoung-min Cheong
    • Jin-won LeeKwang KimYoung-min Cheong
    • G11B7/085G11B7/09
    • G11B7/0933G11B7/0932G11B7/0935
    • An actuator used with an optical pickup to drive a blade, on which an objective lens is mounted, in focusing and tracking directions, includes a pair of magnets installed on a base, and a plate coil installed in the blade to be placed between the magnets. Each magnet has a shape in which N and S poles of the magnet are alternately magnetized in four regions asymmetrically split vertically and horizontally. In this structure, the actuator used with an optical pickup can be less affected by sensitivity variations when the blade is displaced, and the size of the electromagnetic driving unit can be reduced by reducing the number of magnetized gaps formed in the magnet.
    • 与光拾取器一起使用的致动器驱动其上安装有物镜的刀片在聚焦和跟踪方向上,包括安装在基座上的一对磁体和安装在刀片中的板状线圈以放置在磁体之间 。 每个磁体具有磁体的N极和S极在垂直和水平不对称地分割的四个区域中交替磁化的形状。 在这种结构中,与光学拾取器一起使用的致动器可以较小地影响刀片位移时的灵敏度变化,并且可以通过减少形成在磁体中的磁化间隙的数量来减小电磁驱动单元的尺寸。
    • 10. 发明申请
    • Parallel-structured Raman optical amplifier
    • 并联结构拉曼光放大器
    • US20060126159A1
    • 2006-06-15
    • US11121277
    • 2005-05-02
    • Hee ChungSun ChangWon LeeKwang Kim
    • Hee ChungSun ChangWon LeeKwang Kim
    • H01S3/00
    • H01S3/06754H01S3/0677H01S3/094096H01S3/2383H01S3/302H04B10/2916H04B2210/258
    • A parallel-structured Raman optical amplifier includes a very wide gain band for use in Coarse Wavelength Division Multiplexing (CWDM) scheme—based optical transmission. The parallel-structured Raman optical amplifier for amplifying an input optical signal of a plurality of channels having different center wavelengths received via a single optical path includes: a demultiplexer for dividing the input optical signal into a plurality of optical signals, each of which is composed of at least one channel signal having an adjacent center wavelength, and outputting the divided optical signals to different output terminals; a plurality of Raman amplifiers for performing Raman-optical amplification upon the divided optical signals received from the demultiplexer; and a multiplexer for receiving individual optical signals from the plurality of Raman amplifiers, and outputting the received optical signals via a single optical path.
    • 并行结构的拉曼光放大器包括用于粗波分复用(CWDM)方案的光传输的非常宽的增益带。 用于放大经由单个光路接收的具有不同中心波长的多个通道的输入光信号的并行结构的拉曼光放大器包括:分离器,用于将输入光信号分成多个光信号,每个光信号被组成 具有相邻中心波长的至少一个信道信号,并将分离的光信号输出到不同的输出端; 多个拉曼放大器,用于对从解复用器接收的划分的光信号进行拉曼光放大; 以及多路复用器,用于从多个拉曼放大器接收各个光信号,并通过单个光路输出接收的光信号。