公开(公告)号：US20080138083A1

公开(公告)日：2008-06-12

申请号：US11928193

申请日：2007-10-30

申请人： Jaemyoung Lee ,  Je Soo Ko

发明人： Jaemyoung Lee ,  Je Soo Ko

IPC分类号： H04B10/00

CPC分类号： H04L7/0075 ,  H04L7/027

摘要： Provided are a method and an apparatus for optically extracting a clock signal, that can be realized at low costs while minimizing an influence by input patterns and noises. In the method, optical signals having predetermined wavelength components are extracted using two FBG filters in order to extract a clock component from an input optical signal. After that, an influence by input filters is minimized by passing the extracted optical signals having the predetermined wavelengths through a Fabry-Perot filter.

摘要翻译： 提供了一种用于光学提取时钟信号的方法和装置，其可以以低成本实现，同时最小化输入模式和噪声的影响。 在该方法中，使用两个FBG滤波器提取具有预定波长分量的光信号，以从输入光信号中提取时钟分量。 之后，通过将具有预定波长的所提取的光信号通过法布里 - 珀罗滤波器来最小化输入滤波器的影响。

公开(公告)号：US07365903B2

公开(公告)日：2008-04-29

申请号：US11601817

申请日：2006-11-20

申请人： Bo Hun Choi ,  Sang Soo Lee ,  Chang Bong Kim ,  Je Soo Ko

发明人： Bo Hun Choi ,  Sang Soo Lee ,  Chang Bong Kim ,  Je Soo Ko

IPC分类号： H01S3/00

CPC分类号： H01S3/1302 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06758 ,  H01S3/1608 ,  H01S2301/04 ,  H04B10/294

摘要： Provided is an apparatus and method for all-optically controlling both a gain and a gain flattening. The apparatus includes: a first amplifier automatically controlling a gain of the apparatus through a feedback loop while amplifying a received optical signal; a fixed gain flattening unit receiving the amplified optical signal from the first amplifier and compensating for the gain according to a wavelength of the received optical signal; and a second amplifier automatically controlling the gain through a feedback loop while amplifying the optical signal input from the fixed gain flattening unit. Accordingly, even if the number of channels of an input WDM optical signal varies, both of a gain and a gain flattening can be all-optically controlled.

摘要翻译： 提供了一种用于全光控制增益和增益平坦化的装置和方法。 该装置包括：第一放大器，通过反馈回路自动控制装置的增益，同时放大接收到的光信号; 固定增益平坦化单元，从第一放大器接收放大的光信号，并根据所接收的光信号的波长补偿增益; 并且第二放大器通过反馈环路自动地控制增益，同时放大从固定增益平坦化单元输入的光信号。 因此，即使输入WDM光信号的信道数量变化，增益和增益平坦化也可以全光控制。

公开(公告)号：US5914952A

公开(公告)日：1999-06-22

申请号：US758257

申请日：1996-11-27

申请人： Doo Seop Eom ,  Sung Hyuk Choi ,  Sung Eun Jin ,  Je Soo Ko ,  Jong Hyun Lee

发明人： Doo Seop Eom ,  Sung Hyuk Choi ,  Sung Eun Jin ,  Je Soo Ko ,  Jong Hyun Lee

IPC分类号： H04L12/933 ,  H04Q11/04 ,  H04L12/50

CPC分类号： H04L49/101 ,  H04J2203/0007

摘要： A cross-connection apparatus for tributary unit-12 signal included in a synchronous transfer module-N signal used as a connection signal between synchronous digital hierarchy network nodes, is provided, including, an input/output and tributary unit time switching means for receiving a signal structured in the form of a frame (HEBUS) made up with an administration unit 3 signal, identifier byte and bit interleaved parity byte, performing an administration unit 3 pointer processing, virtual container 3 path overhead processing and tributary unit-12 pointer processing in order to be connected to the switching network, and thus performing a tributary unit-12 unit switching function; and a space switching means for receiving a frame (LBUS) made up with the tributary unit-12 signal, identifier byte and bit interleaved parity byte, namely, an LBUS signal, from the input/output and tributary unit time switching means, the means performing and outputting a space switching operation with the signal.

摘要翻译： 提供了包括在用作同步数字分层网络节点之间的连接信号的同步传输模块-N信号中的支流单元12信号的交叉连接装置，包括：输入/输出和支路单元时间切换装置， 由管理单元3信号，标识符字节和比特交织奇偶校验字节构成的帧（HEBUS）形式的信号，执行管理单元3指针处理，虚拟容器3路径开销处理和支持单元12指针处理 顺序连接到交换网络，从而执行支路单元12单元切换功能; 以及空间切换装置，用于从输入/输出和支路单元时间切换装置接收由辅助单元12信号，标识符字节和比特交织的奇偶校验字节（即LBUS信号）构成的帧（LBUS），该装置 执行并输出具有该信号的空间切换操作。

公开(公告)号：US08359525B2

公开(公告)日：2013-01-22

申请号：US12718495

申请日：2010-03-05

申请人： Jong-Yoon Shin ,  Jongho Kim ,  Je Soo Ko ,  Kwangjoon Kim

发明人： Jong-Yoon Shin ,  Jongho Kim ,  Je Soo Ko ,  Kwangjoon Kim

IPC分类号： H03M13/00

CPC分类号： H04J3/1658 ,  H04B10/25 ,  H04B10/27 ,  H04J2203/0091 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0078 ,  H04L1/0083

摘要： A method of transmitting data in an optical transport network is provided. The method comprises generating an optical transmission unit frame including an in-band area including a first area to which information data is allocated and a second area to which the information data is not allocated and an out-band area including parity information and transmitting the data through the optical transmission unit frame.

公开(公告)号：US20100229074A1

公开(公告)日：2010-09-09

申请号：US12718495

申请日：2010-03-05

申请人： Jong-Yoon Shin ,  Jongho Kim ,  Je Soo Ko ,  Kwangjoon Kim

发明人： Jong-Yoon Shin ,  Jongho Kim ,  Je Soo Ko ,  Kwangjoon Kim

IPC分类号： H03M13/15 ,  G06F11/10 ,  H03M13/05

CPC分类号： H04J3/1658 ,  H04B10/25 ,  H04B10/27 ,  H04J2203/0091 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0078 ,  H04L1/0083

摘要： A method of transmitting data in an optical transport network is provided. The method comprises generating an optical transmission unit frame including an in-band area including a first area to which information data is allocated and a second area to which the information data is not allocated and an out-band area including parity information and transmitting the data through the optical transmission unit frame.

摘要翻译： 提供了一种在光传输网络中传输数据的方法。 该方法包括：生成光传输单元帧，该光传输单元帧包括包括分配了信息数据的第一区域和未分配信息数据的第二区域的带内区域和包括奇偶校验信息的传输数据的带外区域 通过光传输单元框架。

公开(公告)号：US07577370B2

公开(公告)日：2009-08-18

申请号：US11580357

申请日：2006-10-13

申请人： Jaemyoung Lee ,  Je Soo Ko

发明人： Jaemyoung Lee ,  Je Soo Ko

IPC分类号： H04B10/02 ,  H04B10/142 ,  G02F1/365 ,  G02F2/02

CPC分类号： H04B10/299

摘要： An apparatus and method for extracting an optical clock signal are provided. The apparatus includes a first reflection filter selecting and reflecting only a first frequency component in an input optical signal; a first Fabry-Perot laser diode matching the first frequency component reflected by the first reflection filter with a predetermined output mode and outputting the first frequency component in the predetermined output mode; a second Fabry-Perot laser diode selecting a second frequency component in an input optical signal that has not been reflected but has been transmitted by the first reflection filter, matching the second frequency component with a predetermined output mode, and outputting the second frequency component in the predetermined output mode; and a photodetector receiving the first frequency component from the first Fabry-Perot laser diode and the second frequency component from the second Fabry-Perot laser diode and beating them to extract a clock signal. Accordingly, the optical clock signal can be extracted with low influence of the pattern of the input optical signal and an improved signal-to-noise ratio (SNR).

摘要翻译： 提供了一种用于提取光时钟信号的装置和方法。 该装置包括：第一反射滤光器，其选择并仅反射输入光信号中的第一频率分量; 与第一反射滤波器反射的第一频率分量与预定输出模式匹配的第一法布里 - 珀罗激光二极管，并以预定输出模式输出第一频率分量; 第二法布里 - 珀罗激光二极管，其选择未被反射但已由第一反射滤波器发射的输入光信号中的第二频率分量，与第二频率分量匹配，并且将第二频率分量输出到 预定的输出模式; 以及光电检测器，其接收来自第一法布里 - 珀罗激光二极管的第一频率分量和来自第二法布里 - 珀罗激光二极管的第二频率分量，并将其击打以提取时钟信号。 因此，可以以输入光信号的图案的低影响和改善的信噪比（SNR）来提取光时钟信号。

公开(公告)号：US20090129455A1

公开(公告)日：2009-05-21

申请号：US12184505

申请日：2008-08-01

申请人： Jong Ho Kim ,  Jong-Yoon Shin ,  Je Soo Ko

发明人： Jong Ho Kim ,  Jong-Yoon Shin ,  Je Soo Ko

IPC分类号： H04B17/00

CPC分类号： H04J3/047 ,  H04J2203/0089 ,  H04L25/14

摘要： Provided is an apparatus for and method of automatically controlling skew between transmitted data, which is caused when a common low-speed field-programmable gate array (FPGA) transmits signals having a transmission rate in the range of tens of Gbps to an optical transponder. The apparatus and method can transmit data with a transmission rate of several Gbps irrespective of the type of the FPGA.

摘要翻译： 提供了一种自动控制发送数据之间的偏移的装置和方法，这是在公共低速现场可编程门阵列（FPGA）将具有在数十Gbps范围内的传输速率的信号发送到光学应答器时引起的。 该装置和方法可以以几Gbps的传输速率发送数据，而不管FPGA的类型。

公开(公告)号：US07327767B2

公开(公告)日：2008-02-05

申请号：US10695734

申请日：2003-10-23

申请人： Byoung Sung Kim ,  Je Soo Ko

发明人： Byoung Sung Kim ,  Je Soo Ko

IPC分类号： H04J14/00

CPC分类号： H04J3/08 ,  H04J2203/0042

摘要： A synchronous transfer mode (STM)-256 adder/dropper which provides a communication path between STM-64 optical channels in an apparatus of multiplexing STM-64 optical channels into STM-256 electrical signals, is provided. The STM-256 adder/dropper transmits STM signals by multiplexing the STM signals at a low speed and simultaneously provides a communication path between lower channels.

摘要翻译： 提供了在将STM-64光通道复用为STM-256电信号的装置中的STM-64光信道之间提供通信路径的同步传输模式（STM）-256加法器/缓冲器。 STM-256加法器/缓冲器通过以低速复用STM信号来发送STM信号，同时提供下级信道之间的通信路径。

公开(公告)号：US07245641B2

公开(公告)日：2007-07-17

申请号：US10247174

申请日：2002-09-19

申请人： Chan Kim ,  Kyeong Soo Han ,  Je Soo Ko ,  Tae Whan Yoo ,  Jong Hyun Lee

发明人： Chan Kim ,  Kyeong Soo Han ,  Je Soo Ko ,  Tae Whan Yoo ,  Jong Hyun Lee

IPC分类号： H04J3/04 ,  H04J3/02 ,  H04L12/50 ,  H04Q11/00

CPC分类号： H04L49/606 ,  H04L49/25 ,  H04L49/30 ,  H04L49/40 ,  H04L49/608 ,  H04L2012/562 ,  H04L2012/5651

摘要： Disclosed herein is a variable length packet switching system. The variable length packet switching system includes at least two switching means, a plurality of multiplexing units and a plurality of demultiplexing units. The switching means switch ATM cells or variable length packet data in parallel. The multiplexing means are arranged upstream of the switching means for multiplexing data inputted from a line card to the switching means in packet units and dividing a packet into packets of a number corresponding to the number of the switching means. The demultiplexing means are arranged downstream of the switching means for combining packets inputted after being switched in parallel by the at least two switching means and outputting the combined packet converted into a format adequate to the line card.

摘要翻译： 这里公开了一种可变长度分组交换系统。 可变长度分组交换系统包括至少两个切换装置，多个复用单元和多个解复用单元。 切换装置并行切换ATM信元或可变长度分组数据。 复用装置设置在切换装置的上游，用于将从线卡输入的数据以分组单元复用到切换装置，并将分组划分成与切换装置的数量相对应的数目的分组。 解复用装置设置在切换装置的下游，用于组合由至少两个切换装置并行切换之后输入的分组，并输出转换成适合于线卡的格式的组合分组。

公开(公告)号：US06795233B2

公开(公告)日：2004-09-21

申请号：US10360453

申请日：2003-02-06

申请人： Joon Hak Bang ,  Je Soo Ko

发明人： Joon Hak Bang ,  Je Soo Ko

IPC分类号： G02F135

CPC分类号： G02F2/004 ,  G02F1/3536 ,  G02F2002/006 ,  H01S5/5054

摘要： The present invention provides a cross-gain modulation type optical wavelength converter having a high extinction ratio and a wide input dynamic range, which is capable of preventing an extinction ratio from lowering and allowing an input dynamic range to widen. The XGM type optical wavelength converter of the present invention allows a probe light to be cross-gain modulated by a pump light one more time using two SOAs, and allows the width of the modulation of the probe light to be further broadened, thereby improving the extinction ratio after wavelength conversion. Simultaneously, the XGM type optical wavelength converter detects the intensity of an optical signal inputted to the optical wavelength converter and automatically controls the intensity of the probe light on the basis of the detected intensity of the input optical signal, thereby providing a wide input dynamic range.

摘要翻译： 本发明提供一种具有高消光比和宽输入动态范围的交叉增益调制型光波长转换器，其能够防止消光比降低并允许输入动态范围变宽。 本发明的XGM型光波长转换器通过使用两个SOA使探针光能够通过泵浦光多次进行交叉增益调制，能够使探测光的调制宽度进一步扩大， 波长转换后的消光比。 同时，XGM型光波长转换器检测输入到光波长转换器的光信号的强度，并根据输入光信号的检测强度自动控制探测光的强度，从而提供宽的输入动态范围 。