公开(公告)号：US08792514B2

公开(公告)日：2014-07-29

申请号：US13113444

申请日：2011-05-23

申请人： June Koo Rhee ,  Chan-Kyun Lee

发明人： June Koo Rhee ,  Chan-Kyun Lee

IPC分类号： H04L12/70 ,  H04L12/56 ,  H04J14/00 ,  H04Q11/00

CPC分类号： H04L49/15 ,  H04L49/101 ,  H04Q11/0005 ,  H04Q11/0062

摘要： A packet switching system includes a plurality of switch fabrics connected in cascade and a plurality of buffers respectively connected to the plurality of switch fabrics. In the event of packet competition, the plurality of switch fabrics buffer the competing packets to the corresponding buffers through buffer connection ports, and forward the competing packets in excess of the number of buffer connection ports to an adjacent switch fabric through switch connection ports.

摘要翻译： 分组交换系统包括级联连接的多个交换结构和分别连接到多个交换结构的多个缓冲器。 在分组竞争的情况下，多个交换结构通过缓冲器连接端口将竞争分组缓冲到相应的缓冲器，并通过交换机连接端口将超过缓冲区连接端口数量的竞争分组转发到相邻的交换机结构。

公开(公告)号：US08155529B2

公开(公告)日：2012-04-10

申请号：US12347162

申请日：2008-12-31

申请人： June Koo Rhee ,  Kyu Sang Lee ,  Chan T. D. Thai

发明人： June Koo Rhee ,  Kyu Sang Lee ,  Chan T. D. Thai

IPC分类号： H04B10/00

CPC分类号： H04J14/007 ,  H04B10/548 ,  H04B10/67 ,  H04L5/0007 ,  H04L27/2096 ,  H04L27/2637 ,  H04L27/2653

摘要： Disclosed are a forward discrete/inverse-discrete Fourier transform device and method for optical orthogonal frequency division multiplexing (OFDM) communication and a transmitting and receiving apparatus. The forward inverse-discrete Fourier transform device includes N 1:N splitters for splitting subcarrier signals received from N inputs corresponding to the number of optical frequencies of subcarriers, a phase shift delay array module for shifting phases of the split signals from the 1:N splitters, N N:1 power couplers for coupling signals output from the phase shift delay array module, a time delay array module for performing time delay on optical OFDM symbols from the N:1 power couplers, and an N:1 power coupler for coupling signals output from the time delay array module.

摘要翻译： 公开了一种用于光学正交频分复用（OFDM）通信和发送和接收设备的前向离散/逆离散傅里叶变换设备和方法。 前向逆离散付里叶变换装置包括N 1：N个分离器，用于分割从N个输入接收到的与副载波的光频数相对应的子载波信号;相移延迟阵列模块，用于从1：N移位分离信号的相位 分流器，NN：1个用于耦合从相移延迟阵列模块输出的信号的功率耦合器，用于对来自N：1个功率耦合器的光OFDM符号执行时间延迟的延时阵列模块，以及用于耦合信号的N：1功率耦合器 从时间延迟阵列模块输出。

公开(公告)号：US20110103798A1

公开(公告)日：2011-05-05

申请号：US12686099

申请日：2010-01-12

申请人： June Koo RHEE ,  Chan Kyun LEE

发明人： June Koo RHEE ,  Chan Kyun LEE

IPC分类号： H04J14/02

CPC分类号： H04J14/0217 ,  H04J14/0212

摘要： Benes networks include an input stage having a plurality of input ports, an input connection stage configured to connect output signals of the input stage, an add connection stage configured to connect outputs of the input connection stage and to connect inputs of add ports corresponding in number to the number of the plurality of input ports, a drop connection stage configured to connect outputs of the add connection stage, to output some outputs to a next stage, and to output some outputs to drop ports, an output connection stage configured to connect the some outputs of the drop connection stage to an output side, and an output stage configured to output the outputs of the output connection stage to output ports.

摘要翻译： Benes网络包括具有多个输入端口的输入级，被配置为连接输入级的输出信号的输入连接级，被配置为连接输入连接级的输出的连接级和连接数量对应的加法端口的输入 与多个输入端口的数量相对应的分接连接级，配置为连接所述添加连接级的输出以将一些输出输出到下一级并将一些输出输出到下降端口的分支连接级，被配置为将 将输出连接级的输出输出到输出侧，输出级被配置为将输出连接级的输出输出到输出端口。

公开(公告)号：US07769293B2

公开(公告)日：2010-08-03

申请号：US11265164

申请日：2005-11-03

申请人： Keun-joo Park ,  Hyun-chin Kim ,  Young-kwang Seo ,  Chun-ju Youn ,  June-koo Rhee

发明人： Keun-joo Park ,  Hyun-chin Kim ,  Young-kwang Seo ,  Chun-ju Youn ,  June-koo Rhee

IPC分类号： H04J14/00 ,  H04B10/20

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0039 ,  H04Q2011/0069

摘要： An apparatus and method for effectively transmitting a packet data and a control data of path information about the packet data in an optical packet data switching network. The method includes grouping a plurality of wavelengths into at least two wavelength bandwidths, each wavelength bandwidth being composed of neighboring wavelengths, and transmitting the optical packet data and the control data with wavelengths of different wavelength bandwidths respectively. Since the wavelength to transmit the optical packet data and the wavelength to transmit the control data has a difference from each other, a node receiving optical data easily divides the packet data and the control data.

摘要翻译： 一种用于在光分组数据交换网络中有效发送分组数据和关于分组数据的路径信息的控制数据的装置和方法。 该方法包括将多个波长分组成至少两个波长带宽，每个波长带宽由相邻波长组成，并且分别以不同波长带宽的波长传输光分组数据和控制数据。 由于发送光分组数据的波长和发送控制数据的波长彼此不同，所以接收光数据的节点容易地划分分组数据和控制数据。

公开(公告)号：US20100142942A1

公开(公告)日：2010-06-10

申请号：US12518765

申请日：2007-02-08

申请人： June Koo Rhee ,  Ji Hwan Kim ,  Jung Yul Choi ,  Min Ho Kang

发明人： June Koo Rhee ,  Ji Hwan Kim ,  Jung Yul Choi ,  Min Ho Kang

IPC分类号： H04B10/08

CPC分类号： H04Q11/0066 ,  H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/0035 ,  H04Q2011/0039 ,  H04Q2011/0045

摘要： Provided is an apparatus for transferring optical data in an optical switching system using time synchronization. The apparatus performs time synchronization on optical data to input the optical data at regular intervals through fiber delay line for time synchronization respectively disposed on input ports. Therefore, the apparatus can efficiently reduce a data blocking rate in comparison with a conventional optical switching system using an asynchronous electric buffer without a synchronous process, and achieve the same performance as conventional asynchronous technology despite using fewer wavelength converters and buffers, thus reducing system cost. In addition, using dynamic time synchronization modules, the apparatus performs time synchronization for minute time variation due to an environment such as temperature.

摘要翻译： 提供了一种使用时间同步在光交换系统中传送光数据的装置。 该装置对光数据执行时间同步，以均匀的间隔通过光纤延迟线输入光学数据，用于分别设置在输入端口上的时间同步。 因此，与使用不具有同步处理的异步电动缓冲器的常规光开关系统相比，该装置可以有效地降低数据阻塞率，并且尽管使用较少的波长转换器和缓冲器，但是实现与传统异步技术相同的性能，从而降低系统成本 。 此外，使用动态时间同步模块，由于诸如温度的环境，该装置执行时间同步以进行微小的时间变化。

公开(公告)号：US20070288618A1

公开(公告)日：2007-12-13

申请号：US11641813

申请日：2006-12-20

申请人： Yeong-bae Yeo ,  Junkyu Lee ,  Joonhyuk Kang ,  June-koo Rhee ,  Young-kwang Seo ,  Hyuncheol Park ,  Namseok Chang

发明人： Yeong-bae Yeo ,  Junkyu Lee ,  Joonhyuk Kang ,  June-koo Rhee ,  Young-kwang Seo ,  Hyuncheol Park ,  Namseok Chang

IPC分类号： G06F15/173

CPC分类号： H04W8/005 ,  H04W8/26 ,  H04W40/32 ,  H04W48/08 ,  H04W48/16 ,  H04W88/04

摘要： Disclosed is a method of establishing a network topology capable of carrying out a relay transmission among sub-networks in a backbone network having the plural sub-networks composed of at least one device. The method includes each of sub-master devices controlling communications in the respective sub-networks transmitting an ID request message to other sub-master devices; transmitting a response message from the other sub-master devices to the sub-master device having transmitted the ID request message; each of the sub-master devices assigning an ID to the sub-master device having no ID among the sub-master devices having transmitted the response message; and forming a network topology in accordance with whether or not the response message has been transmitted, and in accordance with the order of ID assignments, after the ID is assigned to all the sub-master devices in the backbone network. The network topology enables reliable communications among the respective sub-networks.

摘要翻译： 公开了一种建立能够在具有由至少一个设备组成的多个子网络的骨干网中的子网之间执行中继传输的网络拓扑的方法。 该方法包括每个子主设备控制各个子网中的通信，向其他子主设备发送ID请求消息; 从其他子主设备向已经发送了ID请求消息的子主设备发送响应消息; 每个子主设备在已经发送了该响应消息的子主设备中，向没有ID的子主设备分配ID; 以及根据ID分配的顺序，在将ID分配给骨干网中的所有子主设备之后，根据是否已经发送了响应消息来形成网络拓扑。 网络拓扑实现各个子网之间的可靠通信。

公开(公告)号：US20060239682A1

公开(公告)日：2006-10-26

申请号：US11357172

申请日：2006-02-21

申请人： Keun-joo Park ,  Hyun-chin Kim ,  Young-kwang Seo ,  Yeong-bae Yeo ,  June-koo Rhee ,  Chun-ju Youn

发明人： Keun-joo Park ,  Hyun-chin Kim ,  Young-kwang Seo ,  Yeong-bae Yeo ,  June-koo Rhee ,  Chun-ju Youn

IPC分类号： H04J14/00

CPC分类号： H04N9/8227 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0282 ,  H04N5/85 ,  H04N7/17309 ,  H04N7/22 ,  H04N9/8063 ,  H04N21/23608 ,  H04N21/2383

摘要： A time and wavelength division multiplexed passive optical network where a central office has a downstream transmitter and an upstream receiver. The downstream transmitter multiplexes and transmits downstream optical signals in a time region. The upstream receiver de-multiplexes, in a wavelength region, an upstream optical signal. An optical network unit has a downstream receiver and an upstream transmitter, where the downstream receiver de-multiplexes, in the time region, the downstream optical signals from the central office. The upstream transmitter multiplexes the upstream optical signal in the wavelength region and transmits the signal to the central office. A remote node, having an optical distributor and a wavelength division multiplexer, is connected between the central office and the optical network unit. The optical distributor distributes the downstream optical signals from the central office. The wavelength division multiplexer multiplexes, in the wavelength region, the upstream optical signal from each optical network unit.

摘要翻译： 时间和波分复用无源光网络，其中中心局具有下行发射机和上游接收机。 下行发射机在时域中复用和发送下行光信号。 上行接收器在波长区域中对上游光信号进行解复用。 光网络单元具有下行接收器和上游发射器，其中下行接收器在时域中对来自中心局的下行光信号进行解复用。 上行发射机复用波长区域中的上行光信号，并将信号发送到中心局。 具有光分配器和波分多路复用器的远程节点连接在中心局和光网络单元之间。 光学分配器分配来自中心局的下行光信号。 波分复用器在波长区域中复用来自每个光网络单元的上行光信号。

公开(公告)号：US20060093357A1

公开(公告)日：2006-05-04

申请号：US11264165

申请日：2005-11-02

申请人： Keun-joo Park ,  Hyun-chin Kim ,  June-koo Rhee ,  Young-kwang Seo ,  Chun-ju Youn

发明人： Keun-joo Park ,  Hyun-chin Kim ,  June-koo Rhee ,  Young-kwang Seo ,  Chun-ju Youn

IPC分类号： H04B10/08

CPC分类号： H04B10/564 ,  H04B10/077 ,  H04B10/07955

摘要： Apparatuses and methods are provided which suppress a surge component occurring at an optical amplifier on an optical path through which an optical burst signal is transmitted. An optical amplifier may experience a surge due to the power variation of the optical burst signal that is fed to the optical amplifier. To suppress such a surge component, a power corresponding to a number of wavelengths of an optical burst signal to be input is calculated. The optical amplifier is instructed to generate an optical signal with a power corresponding to a difference between a set value and the calculated power. The generated optical signal and the optical burst signal to be input are coupled and output according to the instruction. Thus, the optical amplifier can receive the optical signal with the constant power and the surge component at the optical amplifier can be suppressed.

摘要翻译： 提供的装置和方法，其抑制在发送光猝发信号的光路上的光放大器处发生的浪涌分量。 由于馈送到光放大器的光猝发信号的功率变化，光放大器可能经历浪涌。 为了抑制这种浪涌分量，计算与要输入的光猝发信号的波长数相对应的功率。 指示光放大器产生具有与设定值和计算功率之间的差对应的功率的光信号。 所生成的光信号和要输入的光突发信号根据该指令进行耦合和输出。 因此，光放大器可以以恒定功率接收光信号，并且可以抑制光放大器处的浪涌元件。

公开(公告)号：US20060093355A1

公开(公告)日：2006-05-04

申请号：US11265164

申请日：2005-11-03

申请人： Keun-joo Park ,  Hyun-chin Kim ,  Young-kwang Seo ,  Chun-ju Youn ,  June-koo Rhee

发明人： Keun-joo Park ,  Hyun-chin Kim ,  Young-kwang Seo ,  Chun-ju Youn ,  June-koo Rhee

IPC分类号： H04B10/08

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0039 ,  H04Q2011/0069

摘要： An apparatus and method for effectively transmitting a packet data and a control data of path information about the packet data in an optical packet data switching network. The method includes grouping a plurality of wavelengths into at least two wavelength bandwidths, each wavelength bandwidth being composed of neighboring wavelengths, and transmitting the optical packet data and the control data with wavelengths of different wavelength bandwidths respectively. Since the wavelength to transmit the optical packet data and the wavelength to transmit the control data has a difference from each other, a node receiving optical data easily divides the packet data and the control data.

摘要翻译： 一种用于在光分组数据交换网络中有效发送分组数据和关于分组数据的路径信息的控制数据的装置和方法。 该方法包括将多个波长分组成至少两个波长带宽，每个波长带宽由相邻波长组成，并且分别以不同波长带宽的波长传输光分组数据和控制数据。 由于发送光分组数据的波长和发送控制数据的波长彼此不同，所以接收光数据的节点容易地划分分组数据和控制数据。

公开(公告)号：US06606178B1

公开(公告)日：2003-08-12

申请号：US09401871

申请日：1999-09-23

申请人： June-Koo Rhee ,  Jason E. Hurley

发明人： June-Koo Rhee ,  Jason E. Hurley

IPC分类号： H04B1004

CPC分类号： H04B10/2563 ,  H04J14/02

摘要： A method and a system are disclosed for reducing four-wave mixing (FWM) penalties in an optical transmission network. The FWM penalties are reduced by simultaneously and periodically modulating the phase of the optical signals propagating through a long fiber waveguide at a modulation frequency that causes destructive interference of the FWM products that are otherwise generated along the length of the long fiber waveguide. The method may be implemented in an optical transmitter for an optical transmission network by providing a phase modulator between the multiplexer and an optical boost amplifier so as to simultaneously modulate the phase of all the optical signals that are transmitted through the long fiber waveguide. Alternatively, a phase modulator may be disposed between each source of modulated optical signals and the multiplexer so as to separately modulate the phase of all the optical signals that are subsequently transmitted through the long fiber waveguide.

摘要翻译： 公开了用于减少光传输网络中的四波混频（FWM）处罚的方法和系统。 通过同时且周期性地调制通过长纤维波导传播的光信号的相位以调制频率来降低​​FWM处罚，该调制频率导致沿着长光纤波导长度另外产生的FWM产物的相消干涉。 该方法可以通过在多路复用器和光学升压放大器之间提供相位调制器来实现光传输网络的光发射机，以便同时调制通过长光纤波导传输的所有光信号的相位。 或者，可以将相位调制器设置在每个调制光信号源和多路复用器之间，以分别调制随后通过长光纤波导传输的所有光信号的相位。