公开(公告)号：US20100299578A1

公开(公告)日：2010-11-25

申请号：US12781953

申请日：2010-05-18

Applicant: Jong-Yoon SHIN ,  Jongho KIM ,  Je Soo KO ,  Kwangjoon KIM

Inventor： Jong-Yoon SHIN ,  Jongho KIM ,  Je Soo KO ,  Kwangjoon KIM

IPC: H03M13/05 ,  G06F11/10

CPC classification number: H03M13/251 ,  H03M13/1102 ,  H03M13/1515 ,  H03M13/152 ,  H03M13/253 ,  H03M13/2906 ,  H04J2203/006 ,  H04J2203/0089 ,  H04J2203/0094 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0064 ,  H04L1/0071 ,  H04L25/14 ,  H04L2001/0096

Abstract: A transmitting apparatus in a transport network performs forward error correcting encoding for each virtual lane set as a multiple of the transmission channels, to generate virtual frames including independent parity bytes for each virtual lane. The generated virtual frames are transmitted through at least one transmission channel. In addition, a receiving apparatus detects the virtual frames for each virtual lane from a signal received through a transmission channel by using a frame assignment sequence, and performs forward error correcting decoding by using the parity bytes included in the virtual frames detected for each virtual lane.

Abstract translation: 传输网络中的发送装置对每个虚拟通道进行前向纠错编码，作为传输信道的倍数，生成包括每个虚拟通道的独立奇偶校验字节的虚拟帧。 生成的虚拟帧通过至少一个传输信道传输。 此外，接收装置通过使用帧分配序列从通过传输信道接收的信号检测每个虚拟通道的虚拟帧，并且通过使用包括在针对每个虚拟通道检测到的虚拟帧中的奇偶校验字节来执行前向纠错解码 。

公开(公告)号：US07751710B2

公开(公告)日：2010-07-06

申请号：US11745565

申请日：2007-05-08

Applicant: Hwan Seok Chung ,  Sun Hyok Chang ,  Sang Soo Lee ,  Kwangjoon Kim

Inventor： Hwan Seok Chung ,  Sun Hyok Chang ,  Sang Soo Lee ,  Kwangjoon Kim

IPC: H04J14/00

CPC classification number: H04Q11/0005 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0217 ,  H04Q2011/0015 ,  H04Q2011/0039

Abstract: Provided are a photonic cross-connector system, a wavelength division multiplexing (WDM) system using the photonic cross-connector system, and an optical communication network based on the WDM system. The photonic cross-connector system includes: an optical coupler branching an input optical signal into a plurality of paths; a wavelength selective switch (WSS) extracting at least one wavelength signal from the input optical signal and outputting the extracted wavelength signal to at least one port; a WDM multi-casting apparatus simultaneously copying and reproducing the input optical signal into different wavelengths and changing modulation methods of the input optical signal into different types of modulation methods; an optical transmitter and/or receiver branching and coupling the input optical signal; and a control system controlling the optical coupler, the WSS, the WDM multicasting apparatus, and the optical transmitter and/or receiver.

Abstract translation: 提供了一种光子交叉连接器系统，使用光子交叉连接器系统的波分复用（WDM）系统和基于WDM系统的光通信网络。 光子交叉连接器系统包括：将输入光信号分支成多个路径的光耦合器; 波长选择开关（WSS），从所述输入光信号中提取至少一个波长信号，并将所提取的波长信号输出到至少一个端口; WDM复合铸造设备同时将输入的光信号复制并再现成不同的波长，并且将输入的光信号的调制方法改变成不同类型的调制方法; 光发射机和/或接收机分支和耦合输入光信号; 以及控制光耦合器，WSS，WDM多播设备和光发射机和/或接收机的控制系统。

公开(公告)号：US20090016719A1

公开(公告)日：2009-01-15

申请号：US12171586

申请日：2008-07-11

Applicant: Joon Ki Lee ,  Jyung Chan Lee ,  Kwangjoon Kim

Inventor： Joon Ki Lee ,  Jyung Chan Lee ,  Kwangjoon Kim

IPC: H04J11/00

CPC classification number: H04J3/0685 ,  H04J3/1611 ,  H04J3/1652

Abstract: Provided are an optical transponder that interfaces a multiprotocol signal and a method of interfacing a multiprotocol signal. The optical transponder includes: an optical transceiver, which optical/electrical converts and multiplexes/demultiplexes an input signal; a reception clock generator, which generates a clock on a reception path; a transmission clock generator, which generates a clock on a transmission path; an optical transport hierarchy (OTH) framer, which processes an OTH signal when the input signal is the OTH signal; a synchronous digital hierarchy (SDH)/synchronous optical network (SONET) framer, which processes an SDH/SONET signal or a gigabit Ethernet (GbE) when the input signal is the SDH/SONET signal or the GbE signal; and a controller which controls the optical transceiver, the reception clock generator, the transmission clock generator, the OTH framer, and the SDH/SONET framer according to the type of the input signal. Accordingly, one optical transponder can receive various types of protocol signals, and thus different optical transponders are not separately required according to a type of a connected signal.

Abstract translation: 提供了一种光接收器，其将多协议信号和多协议信号接口的方法相连接。 光转发器包括：光收发器，其对输入信号进行光/电转换和解复用; 接收时钟发生器，其在接收路径上产生时钟; 传输时钟发生器，其在传输路径上产生时钟; 光传输层次（OTH）成帧器，当输入信号为OTH信号时处理OTH信号; 同步数字层级（SDH）/同步光网络（SONET）成帧器，当输入信号是SDH / SONET信号或GbE信号时处理SDH / SONET信号或千兆以太网（GbE）; 以及根据输入信号的类型控制光收发器，接收时钟发生器，传输时钟发生器，OTH成帧器和SDH / SONET成帧器的控制器。 因此，一个光学应答器可以接收各种类型的协议信号，因此根据连接的信号的类型，不需要单独地需要不同的光转发器。

公开(公告)号：US07440695B2

公开(公告)日：2008-10-21

申请号：US10968308

申请日：2004-10-18

Applicant: Han Hyub Lee ,  Donghan Lee ,  Hee Sang Chung ,  Kwangjoon Kim

Inventor： Han Hyub Lee ,  Donghan Lee ,  Hee Sang Chung ,  Kwangjoon Kim

IPC: H04B10/08

CPC classification number: H04B10/071 ,  G01M11/3145

Abstract: There are provided a method and system for monitoring an optical transmission line. The system for monitoring the optical transmission line includes: an OTDR (optical time-domain reflectometer) transmitting a monitoring light to an optical transmission line, measuring a reflected light or backscattered light to monitor the optical transmission line; an optical amplification unit amplifying the monitoring light transmitted on the optical transmission line by using a gain clamped optical amplifier; and a filter unit removing a component having a wavelength outside a wavelength band of the monitoring light from a backward ASE (amplified spontaneous emission) generated by the optical amplification unit. Accordingly, it is possible to extend an optical transmission line monitoring distance of the OTDR. As a result, it is possible to prevent deterioration of the performance of the OTDR because of the backward ASE.

Abstract translation: 提供了一种用于监测光传输线的方法和系统。 用于监测光传输线路的系统包括：将光监测光传输到光传输线的OTDR（光时域反射计），测量反射光或反向散射光以监测光传输线; 光放大单元，通过使用增益钳位光放大器来放大在光传输线上传输的监视光; 以及滤光器单元，从由光放大单元产生的反向ASE（放大的自发发射）去除具有监测光的波长带外的波长的分量。 因此，可以延长OTDR的光传输线监视距离。 结果，可以防止由于向后的ASE而导致OTDR的性能的恶化。

公开(公告)号：US20080118245A1

公开(公告)日：2008-05-22

申请号：US11810896

申请日：2007-06-07

Applicant: Sun Hyok Chang ,  Hwan Seok Chung ,  Sang Soo Lee ,  Kwangjoon Kim

Inventor： Sun Hyok Chang ,  Hwan Seok Chung ,  Sang Soo Lee ,  Kwangjoon Kim

IPC: H04J14/02

CPC classification number: H04J14/021 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0217

Abstract: An optical node capable of supporting a mesh-type optical network is provided. The node includes: N ROADMs, which separate specific wavelength channels from a multiple wavelength channel optical signal that is input from any node constituting the optical network, allows the rest of the wavelength channels to be passed, and combine another added wavelength channel with the passed wavelength channel to allow the combined wavelength channel to be passed; an N×1 optical switch which selects the specific wavelength channel separated from one of the N ROADMs and inputs the specific wavelength channel into an optical transceiver and selects one of the N ROADMs and connects a wavelength channel that is output from the optical transceiver to the selected ROADM; and an electrical cross connect switch which drops a part of electrical signal bandwidth of the specific wavelength channels separated by the ROADM, which is converted into the electrical signals in the optical transceiver, toward an external client and combines the rest of the electrical signal bandwidth with a electrical signal added by the external client to form an electrical signal bandwidth of a wavelength channel and output the electrical signal to the optical transceiver. Accordingly, optical fiber inputs and outputs in various directions can be supported, and the number of WDM transceivers used for each node is remarkably reduced, thereby improving efficiency and economical efficiency of a network.

Abstract translation: 提供了一种支持网状光网络的光节点。 节点包括：N个ROADM，其将特定波长信道与从构成光网络的任何节点输入的多波长信道光信号分离，允许其余的波长信道通过，并将另一个添加的波长信道与传递的 波长通道以允许组合波长通道通过; Nx1光开关，其选择从N个ROADM之一分离的特定波长信道，并将特定波长信道输入到光收发器中，并选择N个ROADM中的一个，并将从光收发器输出的波长信道连接到所选择的ROADM ; 以及电交叉开关，其将由ROADM分离的特定波长信道的一部分电信号带宽（其被转换成光收发器中的电信号）向外部客户端转移，并将其余电信号带宽与 由外部客户端添加的电信号以形成波长信道的电信号带宽并将电信号输出到光收发器。 因此，可以支持各个方向的光纤输入和输出，并且显着地减少了用于每个节点的WDM收发器的数量，从而提高了网络的效率和经济效率。

公开(公告)号：US20080080861A1

公开(公告)日：2008-04-03

申请号：US11745565

申请日：2007-05-08

Applicant: Hwan Seok CHUNG ,  Sun Hyok CHANG ,  Sang Soo LEE ,  Kwangjoon KIM

Inventor： Hwan Seok CHUNG ,  Sun Hyok CHANG ,  Sang Soo LEE ,  Kwangjoon KIM

IPC: H04J14/02

CPC classification number: H04Q11/0005 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0217 ,  H04Q2011/0015 ,  H04Q2011/0039

Abstract: Provided are a photonic cross-connector system, a wavelength division multiplexing (WDM) system using the photonic cross-connector system, and an optical communication network based on the WDM system. The photonic cross-connector system includes: an optical coupler branching an input optical signal into a plurality of paths; a wavelength selective switch (WSS) extracting at least one wavelength signal from the input optical signal and outputting the extracted wavelength signal to at least one port; a WDM multi-casting apparatus simultaneously copying and reproducing the input optical signal into different wavelengths and changing modulation methods of the input optical signal into different types of modulation methods; an optical transmitter and/or receiver branching and coupling the input optical signal; and a control system controlling the optical coupler, the WSS, the WDM multicasting apparatus, and the optical transmitter and/or receiver.

Abstract translation: 提供了一种光子交叉连接器系统，使用光子交叉连接器系统的波分复用（WDM）系统和基于WDM系统的光通信网络。 光子交叉连接器系统包括：将输入光信号分支成多个路径的光耦合器; 波长选择开关（WSS），从所述输入光信号中提取至少一个波长信号，并将所提取的波长信号输出到至少一个端口; WDM复合铸造设备同时将输入的光信号复制并再现成不同的波长，并且将输入的光信号的调制方法改变成不同类型的调制方法; 光发射机和/或接收机分支和耦合输入光信号; 以及控制光耦合器，WSS，WDM多播设备和光发射机和/或接收机的控制系统。

公开(公告)号：US20070133634A1

公开(公告)日：2007-06-14

申请号：US11635196

申请日：2006-12-07

Applicant: Joon Lee ,  Jyung Lee ,  Kwangjoon Kim

Inventor： Joon Lee ,  Jyung Lee ,  Kwangjoon Kim

IPC: H01S3/00

CPC classification number: H01S5/06832 ,  H01S5/0617

Abstract: Provided are an apparatus and method for maintaining an constant extinction ratio of a laser diode (LD). The apparatus includes: an automatic power control circuit maintaining the constant optical power of the LD; a correlation deriver deriving correlations between a bias current of the LD and a modulation current to maintain the constant extinction ratio of the LD; and a modulation current control circuit controlling the modulation current to maintain constant the extinction ratio of the LD based on the correlations. The apparatus and method do not use a temperature sensor but derive a relationship between variances of a bias current of the LD and a modulation current according to temperature change, control the modulation current based on the relationship, and maintain the constant extinction ratio of the LD.

Abstract translation: 提供了一种用于维持激光二极管（LD）的恒定消光比的装置和方法。 该装置包括：保持LD的恒定光功率的自动功率控制电路; 导出LD的偏置电流与调制电流之间的相关性的相关性，以维持LD的恒定消光比; 以及调制电流控制电路，其基于相关性控制调制电流以维持LD的消光比。 该装置和方法不使用温度传感器，而是根据温度变化导出LD的偏置电流的方差和调制电流之间的关系，基于该关系控制调制电流，并且保持LD的恒定消光比 。

公开(公告)号：US20120121264A1

公开(公告)日：2012-05-17

申请号：US13386564

申请日：2010-07-14

Applicant: Hwan Seok Chung ,  Sun Hyok Chang ,  Kwangjoon Kim

Inventor： Hwan Seok Chung ,  Sun Hyok Chang ,  Kwangjoon Kim

IPC: H04J14/06 ,  H04J14/02

CPC classification number: H04B10/5053 ,  H04B10/5561 ,  H04B10/66

Abstract: An optical transmitting apparatus optically modulates a transmitting signal to transmit the signal to an optical receiving apparatus using a phase of two optical carriers having each wavelength, and an optical receiving apparatus demodulates an optical signal having a modulated phase with intensity modulation to detect a transmitting signal.

Abstract translation: 光发送装置对发送信号进行光调制，使用具有各波长的两个光载波的相位向光接收装置发送信号，并且光接收装置用强度调制解调具有调制相位的光信号，以检测发送信号 。

公开(公告)号：US08009986B2

公开(公告)日：2011-08-30

申请号：US11810896

申请日：2007-06-07

Applicant: Sun Hyok Chang ,  Hwan Seok Chung ,  Sang Soo Lee ,  Kwangjoon Kim

Inventor： Sun Hyok Chang ,  Hwan Seok Chung ,  Sang Soo Lee ,  Kwangjoon Kim

IPC: H04J14/02

CPC classification number: H04J14/021 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0217

Abstract: An optical node capable of supporting a mesh-type optical network is provided. The node includes: N ROADMs, which separate specific wavelength channels from a multiple wavelength channel optical signal that is input from any node constituting the optical network, allows the rest of the wavelength channels to be passed, and combine another added wavelength channel with the passed wavelength channel to allow the combined wavelength channel to be passed; an N×1 optical switch which selects the specific wavelength channel separated from one of the N ROADMs and inputs the specific wavelength channel into an optical transceiver and selects one of the N ROADMs and connects a wavelength channel that is output from the optical transceiver to the selected ROADM; and an electrical cross connect switch which drops a part of electrical signal bandwidth of the specific wavelength channels separated by the ROADM, which is converted into the electrical signals in the optical transceiver, toward an external client and combines the rest of the electrical signal bandwidth with a electrical signal added by the external client to form an electrical signal bandwidth of a wavelength channel and output the electrical signal to the optical transceiver. Accordingly, optical fiber inputs and outputs in various directions can be supported, and the number of WDM transceivers used for each node is remarkably reduced, thereby improving efficiency and economical efficiency of a network.

Abstract translation: 提供了一种支持网状光网络的光节点。 节点包括：N个ROADM，其将特定波长信道与从构成光网络的任何节点输入的多波长信道光信号分离，允许其余的波长信道通过，并将另一个添加的波长信道与传递的 波长通道以允许组合波长通道通过; N×1光开关，其选择从N个ROADM之一分离的特定波长信道，并将特定波长信道输入到光收发器中，并选择N个ROADM中的一个，并将从光收发器输出的波长信道连接到 选择ROADM; 以及电交叉开关，其将由ROADM分离的特定波长信道的一部分电信号带宽（其被转换成光收发器中的电信号）向外部客户端转移，并将其余电信号带宽与 由外部客户端添加的电信号以形成波长信道的电信号带宽并将电信号输出到光收发器。 因此，可以支持各个方向的光纤输入和输出，并且显着地减少了用于每个节点的WDM收发器的数量，从而提高了网络的效率和经济效率。

公开(公告)号：US20110110253A1

公开(公告)日：2011-05-12

申请号：US12940978

申请日：2010-11-05

Applicant: Kye-Hyun AHN ,  Kwangjoon Kim

Inventor： Kye-Hyun AHN ,  Kwangjoon Kim

IPC: H04L12/26

CPC classification number: H04L47/10 ,  H04L45/245 ,  H04L47/125 ,  Y02D50/30

Abstract: A plurality of lanes are formed between an Ethernet apparatus and a remote Ethernet apparatus. The Ethernet apparatus determines a transmission rate for transmitting a packet and determines the number of lanes to transmit a packet among a plurality of lanes according to the determined transmission rate. The Ethernet apparatus activates the determined number of lanes of a plurality of lanes and transmits the packet to the remote Ethernet apparatus through the activated lanes. Further, the Ethernet apparatus sets the number of lanes for receiving a packet according to a transmission rate, activates the set number of lanes of a plurality of lanes in a state that can receive the packet according to the set number of lanes, and receives packets that are transmitted from the remote Ethernet apparatus through the activated lanes.

Abstract translation: 在以太网设备和远程以太网设备之间形成多个通道。 以太网设备确定用于发送分组的传输速率，并根据确定的传输速率确定在多个车道之间传送分组的通道数。 以太网设备激活多个通道的确定数量的通道，并通过激活的通道将该分组发送到远程以太网设备。 此外，以太网设备根据传输速率设置用于接收分组的通道数，在根据设定的通道数可以接收分组的状态下激活多个通道的设定数量的通道，并且接收分组 通过激活的通道从远程以太网设备发送。