公开(公告)号：US06597482B1

公开(公告)日：2003-07-22

申请号：US09250212

申请日：1999-02-15

申请人： Yun Chur Chung ,  Chang Hee Lee ,  Dae Kwang Jung ,  Seung Kyun Shin

发明人： Yun Chur Chung ,  Chang Hee Lee ,  Dae Kwang Jung ,  Seung Kyun Shin

IPC分类号： H04J1402

CPC分类号： H04J14/02

摘要： A multiplexing/demultiplexing apparatus used in wavelength division multiplexed passive optical subscriber networks comprises a multiplexing/demultiplexing means each having a natural number N input and output ports, wherein wavelength divided signals in one direction inputted through the N−1 input ports are multiplexed onto one output port, and simultaneously wavelength division multiplexed signals in the other direction inputted through the remainder one input port are demultiplexed onto the remainder N−1 output ports. According to the present invention it is possible to implement economical and efficient wavelength division multiplexed passive optical subscriber networks, by including two WGR's, one at the central office and one at the remote node to perform simultaneous multiplexing and demultiplexing of signals in upstream and downstream, and employing an erbium-doped fiber amplifier to be able to use a low-cost light source such as a light-emitting diode.

摘要翻译： 在波分复用无源光用户网络中使用的复用/解复用装置包括：具有自然数N个输入和输出端口的复用/解复用装置，其中通过N-1个输入端口输入的一个方向上的波长分割信号被多路复用到一个 输出端口，并且通过其余一个输入端口输入的另一方向的同时波分复用信号被解复用到剩余的N-1个输出端口。 根据本发明，通过包括两个WGR，一个在中心局和一个在远程节点处，实现经济有效的波分复用无源光用户网络，以执行上行和下行信号的同时复用和解复用， 并且使用掺铒光纤放大器能够使用诸如发光二极管的低成本光源。

公开(公告)号：US08013517B2

公开(公告)日：2011-09-06

申请号：US12299438

申请日：2007-12-27

申请人： Choong Youl Kim ,  Sung Min Kong ,  Hee Seok Choi ,  Seung Hyok Park ,  Ho Shin Yoon ,  Chang Hee Lee

发明人： Choong Youl Kim ,  Sung Min Kong ,  Hee Seok Choi ,  Seung Hyok Park ,  Ho Shin Yoon ,  Chang Hee Lee

IPC分类号： H01J1/62

CPC分类号： C09K11/7792 ,  H05B33/14

摘要： Disclosed are a phosphor, a coating phosphor composition, a method for preparing the phosphor, and a light emitting device. A silicate-based phosphor is expressed in a chemical formula of (4-x-y-z)SrO.xBaO.zCaO.aMgO.2(SiO2).bM2O3:yEu, wherein M is at least one of Y, Ce, La, Nd, Gd, Tb, Yb or Lu, in which 0

摘要翻译： 公开了荧光体，涂料荧光体组合物，荧光体的制备方法以及发光装置。 硅酸盐系荧光体以（4-xyz）SrO·BaO·zCaO·aMgO·2（SiO 2）·bM 2 O 3：yEu的化学式表示，其中M为Y，Ce，La，Nd，Gd中的至少一种 ，Tb，Yb或Lu，其中0

公开(公告)号：US07858014B2

公开(公告)日：2010-12-28

申请号：US11477783

申请日：2006-06-30

申请人： Gee Sung Chae ,  Gyoo Chul Jo ,  Jin Wuk Kim ,  Chang Hee Lee

发明人： Gee Sung Chae ,  Gyoo Chul Jo ,  Jin Wuk Kim ,  Chang Hee Lee

IPC分类号： B29C59/00

CPC分类号： B29C59/026 ,  B29C43/021 ,  B29L2011/0016 ,  G02F1/13394

摘要： An apparatus for fabricating a flat panel display device includes a device that applies a flowable material on a substrate; a soft mold having a base surface, a groove part recessed in relation to the base surface, and a protruding part protruding from the base surface, the soft mold applying a pressure on the flowable material for forming a multi-stepped profile pattern in the flowable material.

摘要翻译： 一种用于制造平板显示装置的装置包括：将可流动材料施加在基板上的装置; 具有基面的软模，相对于基面凹陷的槽部和从基面突出的突出部，软模对可流动材料施加压力，以形成可流动的多级轮廓图案 材料。

公开(公告)号：US20100291296A1

公开(公告)日：2010-11-18

申请号：US12841680

申请日：2010-07-22

申请人： Gee Sung CHAE ,  Gyoo Chul Jo ,  Yong Sup Hwang ,  Jin Wuk Kim ,  Chang Hee Lee

发明人： Gee Sung CHAE ,  Gyoo Chul Jo ,  Yong Sup Hwang ,  Jin Wuk Kim ,  Chang Hee Lee

IPC分类号： B05D5/06 ,  B29C59/02

CPC分类号： G02B5/22 ,  G02F1/133516 ,  G02F1/13394 ,  G02F1/1393 ,  G02F2001/133519 ,  G02F2001/136231

摘要： A fabricating method of a color filter array substrate includes the steps of forming a black matrix on a substrate, forming red, green, blue color filters on the substrate on which the black matrix is formed, forming an overcoat layer including a white color filter on the substrate on which the red, green, and blue color filters are formed, aligning a flat panel soft mold to the overcoat layer; and smoothing the overcoat layer using the flat panel soft mold.

摘要翻译： 一种滤色器阵列基板的制造方法包括以下步骤：在基板上形成黑矩阵，在其上形成黑矩阵的基板上形成红，绿，蓝滤色器，在其上形成包括白色滤色器的外涂层 其上形成有红色，绿色和蓝色滤色器的基板，将平板软模对准到外涂层; 并使用平板软模平整外涂层。

公开(公告)号：US07369771B2

公开(公告)日：2008-05-06

申请号：US11388228

申请日：2006-03-23

申请人： Chang Hee Lee ,  Kwang Pyo Hong ,  Jin Serk Baik ,  Sung Man Kim ,  Sang Mook Lee ,  Sil Gu Mun

发明人： Chang Hee Lee ,  Kwang Pyo Hong ,  Jin Serk Baik ,  Sung Man Kim ,  Sang Mook Lee ,  Sil Gu Mun

IPC分类号： H04J14/00

CPC分类号： H04B10/40

摘要： An optical network terminator of the present invention includes an optical wavelength division multiplexer for receiving an optical signal and incoherent light. An optical detection unit converts a downstream high speed and low speed optical signals into electrical signals. A laser diode converts an upstream signal into an optical signal. A high speed driving unit is supplied with power from a power supply unit to drive a forward-biased laser diode and establish a data and video channel. A high speed reception unit is supplied with the power to receive a downstream data and video channel. A charging unit outputs charged power at the time of a power failure. A low speed driving unit is supplied with the charged power to reverse-bias the laser diode to establish a voice channel. A low speed reception unit is supplied with the charged power to receive a voice channel.

摘要翻译： 本发明的光网络终端器包括用于接收光信号和非相干光的光波分复用器。 光学检测单元将下行的高速和低速光信号转换为电信号。 激光二极管将上行信号转换为光信号。 高速驱动单元由电源单元供电，驱动正向偏置的激光二极管并建立数据和视频通道。 高速接收单元具有接收下行数据和视频通道的电力。 充电单元在停电时输出充电电力。 低速驱动单元被提供有充电电源以反向偏置激光二极管以建立语音通道。 低速接收单元被提供有充电电力以接收语音通道。

公开(公告)号：US07171123B2

公开(公告)日：2007-01-30

申请号：US10353745

申请日：2003-01-28

申请人： Chang Hee Lee ,  Tae Won Oh ,  Kwang Uk Chu

发明人： Chang Hee Lee ,  Tae Won Oh ,  Kwang Uk Chu

IPC分类号： H04J14/02

CPC分类号： H04J14/0297 ,  H04B10/032 ,  H04B10/2503 ,  H04B10/27 ,  H04B10/272 ,  H04B10/2939 ,  H04B10/2972 ,  H04J14/02 ,  H04J14/0282

摘要： The present invention relates to a wavelength-division multiplexed passive optical network. In particular, it relates to a technology for minimizing the optical loss at a wavelength-division multiplexed passive optical network based on wavelength-locked light source Thereby it improves the transmission quality and increases the transmission distance.A 4-port optical path setting device of the present invention increases the amount of light injected into an optical transmitter and thereby improves the wavelength-locking characteristic of a light source. In addition, it can decrease the optical transmission loss in an optical transmission path, and by an optical amplifier being inserted therein; it can also compensate the optical loss in an optical transmission path.In the present invention, a 4-port optical path setting device having the characteristics described above and a method for fault recovery without an additional optical loss are presented.

摘要翻译： 波分复用无源光网络技术领域本发明涉及一种波分复用无源光网络。 具体地说，涉及一种基于波长锁定光源的波分复用无源光网络的光损耗最小化的技术，从而提高了传输质量并提高了传输距离。 本发明的4端口光路设定装置增加了光发射机的光量，从而提高了光源的波长锁定特性。 另外，可以减少光传输路径中的光传输损耗，并且其中插入光放大器; 它还可以补偿光传输路径中的光损耗。 在本发明中，提出了具有上述特征的4端口光路设定装置和没有附加光损耗的故障恢复方法。

公开(公告)号：US07092634B2

公开(公告)日：2006-08-15

申请号：US10160304

申请日：2002-05-31

申请人： Chang Hee Lee ,  Sung Bum Park

发明人： Chang Hee Lee ,  Sung Bum Park

IPC分类号： H04B10/20

CPC分类号： H04J14/0295 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0216 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0294

摘要： Disclosed herein is a bidirectional wavelength division multiplexed self-healing ring network. The ring network includes a central office and a plurality of remote nodes. Two optical fibers each connect the central office and the remote nodes in a ring form to allow optical signals to be bidirectionally received and transmitted between the central office and the remote nodes. One of the two optical fibers is a drop fiber for transmitting optical signals from the central office to the remote nodes, while the other is an add fiber for transmitting optical signals from the remote nodes to the central office.

公开(公告)号：US06671045B1

公开(公告)日：2003-12-30

申请号：US09679822

申请日：2000-10-05

申请人： Chang Hee Lee ,  Sang Yung Shin ,  Kwang Uk Chu

发明人： Chang Hee Lee ,  Sang Yung Shin ,  Kwang Uk Chu

IPC分类号： G01J400

CPC分类号： H04B10/077 ,  G01J4/04 ,  H04B10/07955

摘要： An apparatus and method for measuring optical signal-to-noise ratio in optical communications includes (1) a variable optical band-pass filter (VOBPF) that passes the amplified output beam when the beam wavelength is the same as the passing wavelength of the VOBPF; (2) a 1×4 beam distributor for distributing the passing beam of the VOBPF into four streams; (3) a measuring device for measuring Stokes parameters S0, S1, S2, S3 from the four distributed beams; (4) a calculating device for calculating the optical signal power by finding the power of the polarized component of the amplified output beam from the Stokes parameters S1, S2, and S3; (5) a calculating device for calculating the noise power by finding the power of the noise included in the amplified output beam from Stokes parameter S0 and the optical signal power; and (6) a dividing device for calculating the ratio Power ⁢   ⁢ of ⁢   ⁢ Optical ⁢   ⁢ Signal Power ⁢   ⁢ of ⁢   ⁢ Noise at the passing wavelength.

摘要翻译： 用于测量光通信中的光信噪比的装置和方法包括：（1）当光束波长与VOBPF的通过波长相同时，通过放大的输出光束的可变光学带通滤波器（VOBPF） ; （2）1x4光束分配器，用于将VOBPF的通过光束分配成四个流; （3）用于从四个分布式波束测量斯托克斯参数S0，S1，S2，S3的测量装置; （4）计算装置，用于通过从斯托克斯参数S1，S2和S3中找出放大的输出光束的偏振分量的功率来计算光信号功率; （5）一种计算装置，用于通过从Stokes参数S0和光信号功率中找出包含在放大的输出光束中的噪声的功率来计算噪声功率; 和（6）用于计算通过波长的比值的分割装置。

公开(公告)号：US06538784B1

公开(公告)日：2003-03-25

申请号：US09387527

申请日：1999-09-01

申请人： Chang Hee Lee ,  Yun Chur Chung ,  Hyun Deok Kim

发明人： Chang Hee Lee ,  Yun Chur Chung ,  Hyun Deok Kim

IPC分类号： H04J1402

CPC分类号： H04Q11/0005 ,  H04Q2011/0047 ,  H04Q2011/0075

摘要： This invention relates to a multicast-capable optical cross-connect with layered modularity. Due to its layered modularity, this invention can be applied to many differently structured networks and provides easier maintenance than conventional optical cross-connects and efficient preparation for network evolution or node upgrade. By exploiting its simple elementary switches, multicast-capable optical cross-connect with layered modularity minimizes the switching time. For a given node, M input fiber ports supply multiplexed optical signals from other nodes in the network and m input fiber ports supply multiplexed optical signals generated from the node. M+m 1×M optical power splitters 311, 312, 313, 314, 315 distribute multiplexed input signals. A drop link module 331 selects signals to be dropped at the node where the optical cross-connect is installed. M transmission link modules 321, 322, 323 select signals to be transmitted to other nodes out of input signals.

摘要翻译： 本发明涉及具有分层模块化的具有组播能力的光交叉连接。 由于其分层的模块化，本发明可以应用于许多不同结构的网络，并且提供比常规光交叉连接更简单的维护以及用于网络演进或节点升级的有效准备。 通过利用其简单的基本交换机，具有分层模块化的多播能力交叉连接最小化了切换时间。 对于给定节点，M个输入光纤端口提供来自网络中其他节点的复用光信号，并且m个输入光纤端口提供从节点产生的复用光信号。 M + m×1M光功率分配器311,312,313,314,315分配复用输入信号。 下拉链路模块331选择要在其上安装光交叉连接的节点丢弃的信号。 M个传输链路模块321,322,323从输入信号中选择要发送到其他节点的信号。

公开(公告)号：US06396574B1

公开(公告)日：2002-05-28

申请号：US09524156

申请日：2000-03-14

申请人： Chang Hee Lee ,  Sang Yung Shin ,  Kwang Uk Chu

发明人： Chang Hee Lee ,  Sang Yung Shin ,  Kwang Uk Chu

IPC分类号： G01N2100

CPC分类号： G01J1/4257 ,  G01J9/00 ,  G01J2009/0226 ,  G02B6/29319 ,  G02B6/29358 ,  G02B6/2938 ,  G02B6/29395 ,  H04B10/077 ,  H04B10/07955

摘要： An apparatus for measuring the wavelength, optical power, and an optical signal-to-noise ratio (OSNR) of each optical signal in wavelength-division-multiplexing optical communication includes: elements for splitting a part of wavelength-division-multiplexed (WDM) signals, elements for amplifying the WDM signals and generating spontaneous emission light simultaneously, elements for reflecting a predetermined section of the spontaneous emission light and generating an optical reference signal, and elements for combining the optical reference signal with the part of the WDM signals split by the splitting elements and generating a combined light. The apparatus has components for filtering the combined light at a fixed temperature and generating a waveform which is the same as an optical spectrum of the combined light in the time domain. The apparatus includes elements for converting the waveform into an electrical signal and components for signal processing that measure the wavelength, the optical power, and the OSNR of the WDM signals.

摘要翻译： 用于测量波分复用光通信中每个光信号的波长，光功率和光信噪比（OSNR）的装置包括：用于将波分复用（WDM） 信号，用于放大WDM信号并同时产生自发发射光的元件，用于反射自发发射光的预定部分并产生光学参考信号的元件，以及用于将光学参考信号与WDM信号的一部分分开的元件 分离元件并产生组合光。 该装置具有用于在固定温度下对组合光进行滤波的部件，并产生与时域中的组合光的光谱相同的波形。 该装置包括用于将波形转换成电信号的元件和用于信号处理的组件，用于测量WDM信号的波长，光功率和OSNR。