公开(公告)号：US07200329B2

公开(公告)日：2007-04-03

申请号：US10635943

申请日：2003-08-07

申请人： Ki-Cheol Lee ,  Yun-Je Oh ,  Jong-Kwon Kim

发明人： Ki-Cheol Lee ,  Yun-Je Oh ,  Jong-Kwon Kim

IPC分类号： H04J14/02

CPC分类号： H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/0022 ,  H04Q2011/0024 ,  H04Q2011/0033 ,  H04Q2011/0035 ,  H04Q2011/0039 ,  H04Q2011/0043 ,  H04Q2011/0083

摘要： A wavelength-path-monitoring/correcting apparatus used in a transparent OXC is disclosed. The apparatus includes: a path-information-generating section for generating path-monitoring information; a plurality of optical couplers for coupling each output signal of the wavelength-division demultiplexers with the pertinent path-monitoring information; a plurality of optical switches for switching each optical signal inputted from the optical couplers; a plurality of wavelength-division multiplexers for multiplexing optical signals inputted through the optical switches; a path-information-detecting section for detecting the path-monitoring information from optical signals outputted from the wavelength-division multiplexers; and, a path-control section for comparing the path-monitoring information detected through the path-information-detecting section with predetermined optical-switching information and for correcting switched paths.

摘要翻译： 公开了一种在透明OXC中使用的波长路径监视/校正装置。 该装置包括：路径信息生成部，生成路径监视信息; 多个光耦合器，用于将波分解复用器的每个输出信号与相关的路径监测信息相耦合; 多个光开关，用于切换从光耦合器输入的每个光信号; 多个波分复用器，用于复用通过光开关输入的光信号; 路径信息检测部分，用于从波分复用器输出的光信号中检测路径监控信息; 以及路径控制部分，用于将通过路径信息检测部分检测的路径监视信息与预定的光交换信息进行比较，并用于校正交换路径。

公开(公告)号：US07409158B2

公开(公告)日：2008-08-05

申请号：US10638983

申请日：2003-08-12

申请人： Ki-Cheol Lee ,  Yun-Je Oh ,  Sang-Hyun Doh ,  Jong-Kwon Kim

发明人： Ki-Cheol Lee ,  Yun-Je Oh ,  Sang-Hyun Doh ,  Jong-Kwon Kim

IPC分类号： H04J14/00

CPC分类号： H04J14/0212 ,  H04J14/0209 ,  H04J14/0227 ,  H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/002 ,  H04Q2011/0024 ,  H04Q2011/0039

摘要： A large-capacity optical router is disclosed that exchanges data traffic such as IP packets, Ethernet frames, etc., at high speed in units of optical frames. The large-capacity optical router uses an electric buffer including input ports, output ports, an add port for inputting data received from a lower IP router, a drop port for outputting data to the lower IP router, a wavelength division demultiplexing section for wavelength-division-demultiplexing wavelength signals input through the input ports and the add port, an input interface section for converting optical frames from the wavelength division demultiplexing section into electric signals, and an optical switch for performing a high-speed switching of the optical frames from the input interface section. The large-capacity optical router also includes an output interface section for processing the optical frames output from the optical switch, a wavelength division multiplexing section for wavelength-division-multiplexing outputs of the output interface section and transmitting the multiplexed outputs to another large-capacity optical router, a drop interface section for processing the optical frames from the wavelength division multiplexer to the lower IP router, a header processing section for recognizing header information, an optical switch control section for controlling a connection state of the optical switch, a header reinserting section for reinserting headers into outputs of the optical router, and an edge traffic aggregator including of an ingress part for converting IP packets input from the lower IP router into optical frames and an egress part for converting the optical frames into IP packets and transmitting the converted packets to the IP router.

摘要翻译： 公开了以光学单元为单位高速交换诸如IP分组，以太网帧等的数据业务的大容量光路由器。 大容量光路由器使用电气缓冲器，包括输入端口，输出端口，用于输入从较低IP路由器接收的数据的添加端口，用于向较低IP路由器输出数据的丢弃端口，用于波分复用的波分复用部分， 通过输入端口和加法端口输入的除法分离波长信号，用于将来自波分解复用部分的光学帧转换为电信号的输入接口部分，以及用于执行光学帧的高速切换的光开关 输入接口部分。 大容量光路由器还包括用于处理从光开关输出的光帧的输出接口部分，用于对输出接口部分的输出进行波分复用的波分复用部分，并将多路复用输出发送到另一大容量 光路由器，用于处理从波分多路复用器到下IP路由器的光帧的分接口部分，用于识别头信息的报头处理部分，用于控制光开关的连接状态的光开关控制部分， 用于将标题重新插入到光路由器的输出中的边缘业务聚合器，以及包括用于将从下行IP路由器输入的IP分组转换为光帧的入口部分的边缘业务聚合器和用于将光帧转换成IP分组的出口部分， 数据包到IP路由器。

公开(公告)号：US07123830B2

公开(公告)日：2006-10-17

申请号：US10446906

申请日：2003-05-28

申请人： Jong-Kwon Kim ,  Yun-Je Oh ,  Ki-Cheol Lee

发明人： Jong-Kwon Kim ,  Yun-Je Oh ,  Ki-Cheol Lee

IPC分类号： H04B10/00 ,  H04B10/08

CPC分类号： H04J14/0295 ,  H04J14/0212 ,  H04J14/0216 ,  H04J14/0283 ,  H04J14/0291 ,  H04Q11/0062 ,  H04Q2011/0016 ,  H04Q2011/0024 ,  H04Q2011/0035 ,  H04Q2011/0081 ,  H04Q2011/0094

摘要： A WDM bidirectional self-healing optical ring network is provided in which an outer ring network and an inner ring network can both handle N optical signals. The network includes a node; an optical add/drop multiplexer having a 1×N demultiplexer and a 1×N multiplexer; a pair of optical switching devices each connected to an optical fiber link intervening between the optical add/drop multiplexer and another node on the both ends of the optical add/drop multiplexer; and, a pair of circulators each connected between the optical add/drop multiplexer and a particular optical switching device in the optical switching device pair, each circulator having three ports, two of the three ports being connected to a corresponding optical switching device and remaining one port being connected to the optical add/drop multiplexer.

摘要翻译： 提供了一种WDM双向自愈光环网络，其中外环网络和内环网络都可以处理N个光信号。 网络包括一个节点; 具有1xN解复用器和1xN多路复用器的光分插复用器; 一对光开关装置，每个光开关装置连接到插入在光分插复用器与光分插复用器两端的另一节点之间的光纤链路; 以及一对连接在光分插复用器和光开关器件对中的特定光开关器件之间的环行器，每个循环器具有三个端口，三个端口中的两个连接到相应的光开关器件，其余一个 端口连接到光分插复用器。

公开(公告)号：US07330656B2

公开(公告)日：2008-02-12

申请号：US10651746

申请日：2003-08-29

申请人： Ki-Cheol Lee ,  Yun-Je Oh ,  Tae-Sung Park ,  Jong-Kwon Kim

发明人： Ki-Cheol Lee ,  Yun-Je Oh ,  Tae-Sung Park ,  Jong-Kwon Kim

IPC分类号： H04J13/00

CPC分类号： H04J14/0282 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0238 ,  H04J14/0247 ,  H04J14/0252 ,  H04Q11/0067 ,  H04Q11/0071 ,  H04Q2011/0064

摘要： A PON and a method of transmitting data employing different upstream and downstream transmission protocols are disclosed. The PON includes: a plurality of ONTs; WDM filters; an OLT receiving and transmitting optical signals to and from the ONTs and a higher network; and an optical coupler. The ONT includes a first switching unit, a level transformer converting two level Ethernet signals into a three level data signals, a first code generator generating a specific CDMA codes that distinguish the ONT from another ONT, and a first multiplier performing a spread spectrum function with the CDMA codes. The OLT includes an optical receiver, a branching filter branching the upstream CDMA signals, a plurality of second code generators generating codes for despread, a plurality of second multipliers multiplying the received signals by the despread codes, and a plurality of data decider extracting data through correlation calculation.

摘要翻译： 公开了PON和使用不同的上行和下行传输协议传输数据的方法。 PON包括：多个ONT; WDM滤波器 OLT接收和发送来自ONT和更高网络的光信号; 和光耦合器。 ONT包括第一开关单元，将两级以太网信号转换成三电平数据信号的电平变换器，产生区分ONT与另一ONT的特定CDMA码的第一码发生器，以及执行扩频功能的第一乘法器， CDMA码。 OLT包括光接收器，分支上行CDMA信号的分支滤波器，多个第二代码生成器产生解扩的代码，多个第二乘法器将接收信号乘以解扩码，以及多个数据判别器提取数据通过 相关计算。

公开(公告)号：US07133609B2

公开(公告)日：2006-11-07

申请号：US10446523

申请日：2003-05-28

申请人： Jong-Kwon Kim ,  Sang-Hyun Doh ,  Yun-Je Oh ,  Ki-Cheol Lee ,  Jong-Hun Lee ,  Hak-Phil Lee ,  Se-Kang Park

发明人： Jong-Kwon Kim ,  Sang-Hyun Doh ,  Yun-Je Oh ,  Ki-Cheol Lee ,  Jong-Hun Lee ,  Hak-Phil Lee ,  Se-Kang Park

IPC分类号： H04B10/00

CPC分类号： H04J14/0291 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0283

摘要： A bidirectional WDM self-healing ring network is provided and includes an outer ring network and an inner network for processing N units of optical signals and for performing a protection switching by using the outer ring network when the inner ring network suffers a link failure.

摘要翻译： 提供了一种双向WDM自愈环网，包括外环网络和内网，用于处理N个光信号单元，并且在内环网遭受链路故障时，通过使用外环网进行保护倒换。

公开(公告)号：US07006723B2

公开(公告)日：2006-02-28

申请号：US10681923

申请日：2003-10-09

申请人： Jong-Kwon Kim ,  Yun-Je Oh ,  Jun-Ho Koh ,  Ki-Cheol Lee

发明人： Jong-Kwon Kim ,  Yun-Je Oh ,  Jun-Ho Koh ,  Ki-Cheol Lee

IPC分类号： G02B6/28

CPC分类号： G02B6/12009 ,  H04J14/0212

摘要： An optical add/drop multiplexer includes a multiplexing/demultiplexing unit having an input multiplexing port, an output multiplexing port and a plurality of demultiplexing ports each connected to a respective optical circulator. Each optical circulator includes a first port for internally inputting an added channel, a second port for outputting the added channel to a corresponding demultiplexing port and receiving a channel outputted by the corresponding demultiplexing port, and a third port for outputting the channel received from the second port. Each of optical switches is located between adjacent circulators, wherein each optical switch includes a first input port, coupled to the third port of one optical circulator, for receiving the channel from the third port, a second input port for receiving an externally added channel, a first output port, coupled to another first port of another optical circulator, for outputting the added channel to another first port, and a second output port for externally outputting the channel inputted through the first input port according to the dropping operation.

摘要翻译： 光分插复用器包括具有输入多路复用端口，输出多路复用端口和多个解复用端口的复用/解复用单元，每个解复用端口连接到相应的光循环器。 每个光循环器包括用于内部输入附加通道的第一端口，用于将相加的信道输出到相应的解复用端口并接收由相应的解复用端口输出的信道的第二端口，以及用于输出从第二端口接收的信道的第三端口 港口。 每个光开关位于相邻循环器之间，其中每个光开关包括耦合到一个光循环器的第三端口的第一输入端口，用于从第三端口接收通道，用于接收外部添加的通道的第二输入端口， 第一输出端口，耦合到另一个光环行器的另一个第一端口，用于将附加的信道输出到另一个第一端口;以及第二输出端口，用于根据丢弃操作从外部输出通过第一输入端口输入的信道。

公开(公告)号：US07254344B2

公开(公告)日：2007-08-07

申请号：US10427284

申请日：2003-05-01

申请人： Jong-Kwon Kim ,  Seong-Taek Hwang ,  Yun-Je Oh

发明人： Jong-Kwon Kim ,  Seong-Taek Hwang ,  Yun-Je Oh

IPC分类号： H04B10/00 ,  H04J14/00

CPC分类号： H04B10/2587 ,  H04J14/0221 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J2014/0253 ,  H04Q11/0067 ,  H04Q2011/0016

摘要： A passive optical network includes a central office and a subscriber-side apparatus connected with the central office through an optical fiber link. The subscriber-side apparatus performs communication with the central office based on wavelength-division-multiplexed optical signals. The central office has a routing section, provided with first to fourth multiplexing ports, for demultiplexing multi-wavelength light inputted from the fourth multiplexing port into a plurality of channels. Each of the demultiplexed channels is amplified and multiplexed for output through the first multiplexing port. Optical signals inputted through the third multiplexing port are demultiplexed and outputted upstream. The routing section also multiplexes channels for downstream optical signals, outputting the multiplexed channels through the second port. A splitting section, provided with first to third splitting ports and arranged on a loop optical waveguide connects the first and fourth multiplexing port with each other. The splitting section causes some of multi-wavelength light inputted into the first splitting port to be outputted through the second splitting port and causes the remainder of multi-wavelength light to be outputted through the third splitting port connected with the fourth multiplexing port. A circulator causes the multi-wavelength light inputted through the second splitting port to be transmitted to the subscriber-side apparatus and causes upstream optical signals received from the subscriber-side apparatus to be outputted to the third multiplexing port.

摘要翻译： 无源光网络包括通过光纤链路与中心局连接的中心局和用户侧设备。 用户侧设备基于波分复用光信号与中心局进行通信。 中心局具有路由部分，设置有第一到第四复用端口，用于将从第四复用端口输入的多波长光解复用为多个信道。 每个解复用的信道被放大和多路复用以通过第一复用端口输出。 通过第三复用端口输入的光信号被解复用并在上游输出。 路由部分还复用用于下行光信号的信道，通过第二端口输出多路复用信道。 具有第一至第三分离端口并布置在环形光波导上的分离部分将第一和第四复用端口彼此连接。 分割部使通过第二分割口输出输入到第一分割端口的一部分多波长光，并且通过与第四复用端口连接的第三分离端口输出剩余的多波长光。 循环器使得通过第二分割端口输入的多波长光被发送到用户侧装置，并且使从用户侧装置接收到的上行光信号输出到第三复用端口。

公开(公告)号：US20060188257A1

公开(公告)日：2006-08-24

申请号：US11337327

申请日：2006-01-23

申请人： Jong-Kwon Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Jun-Ho Koh ,  Jae-Hun Cho

发明人： Jong-Kwon Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Jun-Ho Koh ,  Jae-Hun Cho

IPC分类号： H04J14/00

CPC分类号： H04Q11/0067 ,  H04J3/1694 ,  H04Q2011/0064

摘要： Transmitting data in a synchronous Ethernet passive optical network employs a synchronous Ethernet for ensuring QoS during transmission of multi-media data, thereby specifying transmission of synchronous data and asynchronous data, respectively. The Ethernet passive optical network has an optical line terminal, which is a central base station, and a plurality of optical network units. The method includes the steps of forming a synchronous frame using the OLT to transmit synchronous data for the ONUs, forming an asynchronous frame using the OLT to transmit asynchronous data for the ONUs, forming a super frame including the synchronous and asynchronous frames using the OLT, and transmitting the super frame using the OLT.

摘要翻译： 在同步以太网无源光网络中传输数据采用同步以太网，以确保多媒体数据传输过程中的QoS，从而分别指定同步数据和异步数据的传输。 以太网无源光网络具有作为中央基站的光线路终端和多个光网络单元。 该方法包括以下步骤：使用OLT形成同步帧以发送ONU的同步数据，使用OLT形成异步帧以传输ONU的异步数据，使用OLT形成包括同步和异步帧的超帧; 并使用OLT发送超帧。

公开(公告)号：US20060092985A1

公开(公告)日：2006-05-04

申请号：US11247514

申请日：2005-10-11

申请人： Jae-Hun Cho ,  Jun-Ho Koh ,  Jong-Kwon Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Sang-Mo Hong ,  Jong-Ho Yoon

发明人： Jae-Hun Cho ,  Jun-Ho Koh ,  Jong-Kwon Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Sang-Mo Hong ,  Jong-Ho Yoon

IPC分类号： H04J3/12

CPC分类号： H04L47/10 ,  H04L47/13 ,  H04L47/2416 ,  H04L47/2466 ,  H04L47/30

摘要： A method of enabling transmission of a time-critical control signal event in a sync frame period, such as a pause signal that is generated when the receive buffer of an Ethernet switch is filled with packets beyond a threshold due to congestion of uplink asynchronous data, is disclosed. To transmit time-critical information in a synchronous Ethernet system, a current transmission period is checked upon detection of a time-critical event. If the current transmission period is a sync frame period, time-critical control information is generated, inserted into the first sub-sync frame after the time-critical event, and transmitted. If the current transmission period is an async frame period, a control frame including the time-critical control information is generated and transmitted.

摘要翻译： 一种能够在同步帧周期中发送时间关键控制信号事件的方法，例如当以太网交换机的接收缓冲器由于上行链路异步数据的拥塞而被填充超过阈值时产生的暂停信号， 被披露。 为了在同步以太网系统中传输时间关键信息，在检测到时间紧急事件时检查当前传输周期。 如果当前传输周期是同步帧周期，则产生时间关键控制信息，并在时间紧急事件之后插入到第一子同步帧中并被发送。 如果当前传输周期是异步帧周期，则产生并发送包括时间关键控制信息的控制帧。

公开(公告)号：US20060067367A1

公开(公告)日：2006-03-30

申请号：US11223266

申请日：2005-09-09

申请人： Jae-Hun Cho ,  Jun-Ho Koh ,  Jong-Kwon Kim ,  Yun-Je Oh ,  Jong-Ho Yoon

发明人： Jae-Hun Cho ,  Jun-Ho Koh ,  Jong-Kwon Kim ,  Yun-Je Oh ,  Jong-Ho Yoon

IPC分类号： H04L12/56 ,  H04J3/06 ,  H04L12/28

CPC分类号： H04J3/0697 ,  H04J3/0641 ,  H04L49/90

摘要： Disclosed is a method for establishing a synchronization in a synchronous Ethernet system. Devices are classified according to the type of the devices, and a device having a highest class in the synchronous Ethernet system is detected, then it is determined if the device having the highest class is able to serve as the timing master. If so, the device having the highest class is able to serve as the timing master if only one such device is detected; otherwise, the timing master between devices having the highest class is selected through a collision algorithm.

摘要翻译： 公开了一种在同步以太网系统中建立同步的方法。 设备根据设备的类型进行分类，并且检测到在同步以太网系统中具有最高级别的设备，则确定具有最高级别的设备是否能够用作定时主机。 如果是，如果仅检测到一个这样的设备，具有最高等级的设备能够用作定时主机; 否则，通过碰撞算法选择具有最高等级的设备之间的定时主机。