公开(公告)号：US08861529B2

公开(公告)日：2014-10-14

申请号：US12940978

申请日：2010-11-05

Applicant: Kye-Hyun Ahn ,  Kwangjoon Kim

Inventor： Kye-Hyun Ahn ,  Kwangjoon Kim

IPC: H04L12/56 ,  H04L12/709 ,  H04L12/803 ,  H04L12/801

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。

公开(公告)号：US07848650B2

公开(公告)日：2010-12-07

申请号：US11975766

申请日：2007-10-22

Applicant: Hwan Seok Chung ,  Kwangjoon Kim

Inventor： Hwan Seok Chung ,  Kwangjoon Kim

IPC: H04J14/08

CPC classification number: H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0015 ,  H04Q2011/0039 ,  H04Q2011/0041 ,  H04Q2011/0045

Abstract: In a conventional network for transmitting an optical burst signal, it is impossible to effectively swap labels, reproduce a payload signal, and switch and transmit the signals. A device for swapping optical labels and reproducing an optical payload, includes: an envelope detection unit outputting an envelope of payloads or labels of an optical burst signal by converting phases of two signals obtained by converting the optical burst signal into an electrical signal; a payload processing unit extracting a payload signal, which is included in the optical burst signal, by synchronizing the optical burst signal with the envelope output from the envelope detection unit and optically reproducing or wavelength-converting the extracted payload signal; and a label processing unit extracting a label signal, which is included in the optical burst signal, by synchronizing the optical burst signal with the envelope output form the envelope detection unit and converting the extracted label signal according to a path along which the optical burst signal is transmitted. Accordingly, it is possible to effectively swap the labels, reproduce the payload signal, and switch and transmit the signals, in the network for transmitting the optical burst signal.

Abstract translation: 在用于发送光突发信号的常规网络中，不可能有效地交换标签，再现有效负载信号，并且切换和发送信号。 一种用于交换光学标签和再现光学有效载荷的装置，包括：包络检测单元，通过将通过将光猝发信号转换成电信号而获得的两个信号的相位转换来输出有效载荷的包络或光猝发信号的标记; 有效载荷处理单元通过使所述光脉冲串信号与从所述包络检测单元输出的包络同步，并且对所提取的有效载荷信号进行光学再现或波长转换，提取包括在所述光突发信号中的有效载荷信号; 以及标签处理单元，通过使所述光脉冲串信号与所述包络检测单元的包络输出同步，提取包括在所述光突发信号中的标签信号，并且根据沿着所述光脉冲信号的路径转换所提取的标签信号 被传送。 因此，有可能在网络中有效地交换标签，再现有效载荷信号，以及切换和发送信号，以发送光突发信号。

公开(公告)号：US20080138081A1

公开(公告)日：2008-06-12

申请号：US11975766

申请日：2007-10-22

Applicant: Hwan Seok Chung ,  Kwangjoon Kim

Inventor： Hwan Seok Chung ,  Kwangjoon Kim

IPC: H04B10/00

CPC classification number: H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0015 ,  H04Q2011/0039 ,  H04Q2011/0041 ,  H04Q2011/0045

Abstract: In a conventional network for transmitting an optical burst signal, it is impossible to effectively swap labels, reproduce a payload signal, and switch and transmit the signals. A device for swapping optical labels and reproducing an optical payload, includes: an envelope detection unit outputting an envelope of payloads or labels of an optical burst signal by converting phases of two signals obtained by converting the optical burst signal into an electrical signal; a payload processing unit extracting a payload signal, which is included in the optical burst signal, by synchronizing the optical burst signal with the envelope output from the envelope detection unit and optically reproducing or wavelength-converting the extracted payload signal; and a label processing unit extracting a label signal, which is included in the optical burst signal, by synchronizing the optical burst signal with the envelope output form the envelope detection unit and converting the extracted label signal according to a path along which the optical burst signal is transmitted. Accordingly, it is possible to effectively swap the labels, reproduce the payload signal, and switch and transmit the signals, in the network for transmitting the optical burst signal.

Abstract translation: 在用于发送光突发信号的常规网络中，不可能有效地交换标签，再现有效负载信号，并且切换和发送信号。 一种用于交换光学标签和再现光学有效载荷的装置，包括：包络检测单元，通过将通过将光猝发信号转换成电信号而获得的两个信号的相位转换来输出有效载荷的包络或光猝发信号的标记; 有效载荷处理单元通过使所述光脉冲串信号与从所述包络检测单元输出的包络同步，并且对所提取的有效载荷信号进行光学再现或波长转换，提取包括在所述光突发信号中的有效载荷信号; 以及标签处理单元，通过使所述光脉冲串信号与所述包络检测单元的包络输出同步，提取包括在所述光突发信号中的标签信号，并且根据沿着所述光脉冲信号的路径转换所提取的标签信号 被传送。 因此，有可能在网络中有效地交换标签，再现有效载荷信号，以及切换和发送信号，以发送光突发信号。

公开(公告)号：US20080107423A1

公开(公告)日：2008-05-08

申请号：US11935191

申请日：2007-11-05

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

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

IPC: H04B10/00

CPC classification number: H04B10/40 ,  H04L25/03343

Abstract: An optical transceiver which can effectively reduce optical output jitter when an error is made during designing and manufacturing of a printed circuit board (PCB), and a method of controlling optical output jitter using the optical transceiver are provided. The optical transceiver includes a transmitter unit including an equalizing (EQ) filter which can reduce jitter of a high speed electric signal; a control circuit which controls the EQ filter; a receiver unit which receives an optical signal; and a micro-controller which controls the transmitter unit and the receiver unit. Further included in the optical transceiver is an active type or passive type EQ filter and, in the case of the active type, the control circuit is used to control the filter, in order to compensate for high-frequency component of a high speed electric signal in the transmitter unit in order to reduce reflection or loss on the PCB, and thus deterministic optical output jitter occurring due to Inter-Symbol Interference (ISI) can be reduced.

Abstract translation: 提供了在印刷电路板（PCB）的设计和制造期间发生错误时有效降低光输出抖动的光收发器，以及使用该光收发器控制光输出抖动的方法。 光收发器包括一个发射单元，它包括均衡（EQ）滤波器，可以减少高速电信号的抖动; 控制EQ滤波器的控制电路; 接收单元，其接收光信号; 以及控制发射机单元和接收机单元的微控制器。 在光收发器中还包括有源型或无源型EQ滤波器，并且在有源类型的情况下，控制电路用于控制滤波器，以便补偿高速电信号的高频分量 在发射机单元中以减少PCB上的反射或损耗，因此可以减少由于符号间干扰（ISI）引起的确定性的光输出抖动。

公开(公告)号：US07167493B2

公开(公告)日：2007-01-23

申请号：US10897362

申请日：2004-07-21

Applicant: Jyung-Chan Lee ,  Joon-Ki Lee ,  Yun-Hee Cho ,  Seung-Il Myong ,  Youn-Seon Jang ,  Yool Kwon ,  Kwangjoon Kim ,  Moo-Jung Chu

Inventor： Jyung-Chan Lee ,  Joon-Ki Lee ,  Yun-Hee Cho ,  Seung-Il Myong ,  Youn-Seon Jang ,  Yool Kwon ,  Kwangjoon Kim ,  Moo-Jung Chu

IPC: H01S3/00 ,  H01S3/04 ,  H01S3/10 ,  H01S3/13 ,  H01S3/14

CPC classification number: H01S5/06804 ,  H01S5/02415 ,  H01S5/0265 ,  H01S5/042

Abstract: The present invention relates to a method for revising a wavelength of the EML by controlling a working temperature based on arithmetic functional relations between the DC-Offset voltage and the wavelength and between the working temperature and the wavelength, and a computer-readable recording medium thereof. The method includes the steps of: re-setting initial values of a working temperature, a amplifying voltage and the DC-Offset voltage; determining a wavelength with respect to the re-set DC-Offset voltage based on a functional relation between the DC-Offset voltage and the wavelength of the EML; and determining the revising working temperature for the determined wavelength based on the functional relation between the working temperature and the wavelength of the EML, and re-setting the working temperature with the revising working temperature.

Abstract translation: 本发明涉及一种通过基于DC偏移电压与波长之间以及工作温度和波长之间的算术函数关系来控制工作温度来修改EML的波长的方法及其计算机可读记录介质 。 该方法包括以下步骤：重新设定工作温度，放大电压和DC偏移电压的初始值; 基于所述DC偏移电压和所述EML的波长之间的函数关系来确定相对于所述重新设定的DC偏移电压的波长; 并根据工作温度和EML波长之间的功能关系确定确定波长的修正工作温度，并根据修改工作温度重新设定工作温度。

公开(公告)号：US20060133712A1

公开(公告)日：2006-06-22

申请号：US11143492

申请日：2005-06-03

Applicant: Youn Jang ,  Kwangjoon Kim

Inventor： Youn Jang ,  Kwangjoon Kim

IPC: G02F1/01

CPC classification number: H04B10/677

Abstract: An apparatus and method for controlling an optical interferometer are provided. The method includes setting a thermoelectric cooler (TEC) temperature of the optical interferometer to a room temperature, obtaining an optimal temperature using a difference between two output powers of the optical interferometer based on eye opening of the two output powers and applying an optimal heat voltage generating the optimal temperature to a delay adjuster of the optical interferometer, and performing dithering at the optimal temperature to stabilize the optimal heat voltage.

Abstract translation: 提供了一种用于控制光学干涉仪的装置和方法。 该方法包括将光干涉仪的热电冷却器（TEC）温度设定为室温，使用基于两个输出功率的眼睛打开的光干涉仪的两个输出功率之间的差来获得最佳温度，并施加最佳热电压 为光干涉仪的延迟调节器产生最佳温度，并在最佳温度下进行抖动以稳定最佳热电压。

公开(公告)号：US20060126997A1

公开(公告)日：2006-06-15

申请号：US11137467

申请日：2005-05-26

Applicant: Jinsoo Han ,  Kwangjoon Kim

Inventor： Jinsoo Han ,  Kwangjoon Kim

IPC: G02B6/28

CPC classification number: H04J14/02

Abstract: This apparatus of bidirectional optical recirculation loop transmission enables bidirectional transmission system to be tested in the long transmission distance. Unidirectional optical recirculation loop is composed of two optical modulators and one 4-port optical coupler. Bidirectional optical recirculation loop is composed of four optical switches, one 4-port optical coupler and six optical circulators. Two optical circulators at the entrance (simultaneously exit) of the loop enable transmitted (received) signals to be added (dropped). Four optical circulators enable forward (reverse) signal to bypass the optical switch set for reverse (forward) signal in the inner optical loop. Forward (reverse) signal can be transmitted simultaneously with the reverse (forward) signal without interference. Two independent optical recirculation loops exist on the same fiber link in each direction.

Abstract translation: 这种双向光学循环回路传输装置使双向传输系统能够在较长的传输距离内进行测试。 单向光学循环回路由两个光学调制器和一个4端口光耦合器组成。 双向光学循环回路由四个光开关，一个4端口光耦合器和六个光循环器组成。 环路入口（同时出口）处的两个光环路器使能发送（接收）信号被添加（下降）。 四个光学循环器使得正向（反向）信号绕过内部光环路中的反向（正向）信号的光开关组。 正向（反向）信号可以与反向（正向）信号同时传输而不受干扰。 在相同的光纤链路上存在两个独立的光学循环回路，每个方向。

公开(公告)号：US20050271384A1

公开(公告)日：2005-12-08

申请号：US10968308

申请日：2004-10-18

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

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

IPC: G02F1/39 ,  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路上传输的监视光; 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：US08473820B2

公开(公告)日：2013-06-25

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: H03M13/00 ,  H03M13/03

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, which performs forward error correcting encoding for each virtual lane set, which is a multiple of the number of transmission channels, in order to generate virtual frames including independent parity bytes for each of the virtual lanes. These generated virtual frames are transmitted through at least one transmission channel. A receiving apparatus for detecting the virtual frames for each virtual lane from a signal received through a transmission channel by using a frame assignment sequence, and performing 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，其为每个虚拟通道组执行前向纠错编码，每个虚拟通道组是传输通道数量的倍数，以便生成包括每个虚拟通道的独立奇偶校验字节的虚拟帧。 这些生成的虚拟帧通过至少一个传输信道传输。 一种用于通过使用帧分配序列从通过传输信道接收的信号中检测每个虚拟通道的虚拟帧的接收装置，并且通过使用包括在针对每个虚拟通道检测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：US07869478B2

公开(公告)日：2011-01-11

申请号：US11635196

申请日：2006-12-07

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

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

IPC: H01S5/042 ,  H01S5/068 ,  H01S5/0683

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 。