公开(公告)号：US07272311B2

公开(公告)日：2007-09-18

申请号：US10456166

申请日：2003-06-06

申请人： Sang-Hyun Doh ,  Ki-Cheol Lee ,  Se-Kang Park ,  Yun-Je Oh

发明人： Sang-Hyun Doh ,  Ki-Cheol Lee ,  Se-Kang Park ,  Yun-Je Oh

IPC分类号： H04J14/02

CPC分类号： H04Q11/0066 ,  H04Q2011/0092

摘要： Disclosed is an optical ring network for burst data communication having a plurality of core nodes connected with each other through fiber links. Each core node comprises a demultiplexer for demultiplexing a received optical signal into a plurality of channels by wavelength, an add/drop section for dropping channels selected from the plurality of channels based on a control signal, a multiplexer for multiplexing and outputting the plurality of channels inputted through the add/drop section, a branching section arranged between the demultiplexer and the add/drop section for branching off channel portions from each channel, and a controller for recognizing destinations for frames with each channel modulated and outputting the control signal for dropping the selected channels to the add/drop section.

摘要翻译： 公开了一种用于突发数据通信的光环网络，其具有通过光纤链路彼此连接的多个核心节点。 每个核心节点包括用于通过波长将接收的光信号解复用为多个信道的解复用器，用于基于控制信号丢弃从多个信道中选择的信道的加/减部分，用于复用和输出多个信道的多路复用器 通过加法/放置部分输入的分支部分，布置在解复用器和加法/分支部分之间用于从每个信道分支信道部分的分支部分，以及用于识别每个信道被调制的帧的目的地的控制器，并且输出用于丢弃的信道的控制信号 选择的频道到添加/删除部分。

公开(公告)号：US07280758B2

公开(公告)日：2007-10-09

申请号：US10456144

申请日：2003-06-06

申请人： Sang-Hyun Doh ,  Se-Kang Park ,  Ki-Cheol Lee ,  Yun-Je Oh ,  Byung-Chang Kang

发明人： Sang-Hyun Doh ,  Se-Kang Park ,  Ki-Cheol Lee ,  Yun-Je Oh ,  Byung-Chang Kang

IPC分类号： H04J14/02 ,  H04B10/20

CPC分类号： H04Q11/0066 ,  H04Q2011/0016 ,  H04Q2011/0064 ,  H04Q2011/0084 ,  H04Q2011/0092

摘要： An optical multi-ring network for burst data communication is disclosed. The multi-ring network includes a plurality of optical single-ring networks having a plurality of optical add/drop routers connected with each other through fiber links, and a core optical router for supporting communication between the optical single-ring networks. The core optical router includes a wavelength division demultiplexing section for demultiplexing optical signals received from the each single-ring network and outputting the demultiplexed optical signals as channels whose wavelengths are different from each other; a branching section for branching off and outputting a portion of each channel; and a switching section for switching each channel to a path directed to the destination of each channel according to a first control signal. The core optical router also includes a contention resolution block for aligning channels in a chronological order, which are output at the switching section and directed to identical destinations, according to a second control signal; a wavelength division multiplexing section for collecting channels which pass through the contention resolution block according to destination and outputting the collected channels as multiplexed optical signals; and a controller for recognizing a destination of each branched channel input from the branching section and outputting a third control signal to the switching section and the contention resolution block so as to a low each channel to be directed to the destination of each channel. A frame transmitted on the multi-ring network includes a burst datum consisting of a plurality of packet data, and a header datum indicating a destination of the burst datum.

摘要翻译： 公开了一种用于突发数据通信的光多环网络。 多环网络包括具有通过光纤链路彼此连接的多个光分插路由器的多个光单环网络，以及用于支持光单环网络之间的通信的核心光路由器。 核心光路由器包括波分多路复用部分，用于对从每个单环网络接收的光信号进行解复用，并将解复用的光信号作为波长彼此不同的信道输出; 分支部分，用于分支和输出每个通道的一部分; 以及切换部分，用于根据第一控制信号将每个信道切换到指向每个信道的目的地的路径。 核心光路由器还包括用于根据第二控制信号按照时间顺序对准信道的竞争解决块，其在切换部分输出并被引导到相同的目的地; 波分复用部分，用于收集根据目的地通过竞争解决块的信道，并将所收集的信道作为复用的光信号输出; 以及控制器，用于识别从分支部分输入的每个分支信道的目的地，并将第三控制信号输出到切换部分和争用解决块，以便将每个信道的低通道指向每个信道的目的地。 在多环网络上发送的帧包括由多个分组数据组成的突发数据，以及指示突发数据的目的地的头部数据。

公开(公告)号：US07228071B2

公开(公告)日：2007-06-05

申请号：US10446463

申请日：2003-05-28

申请人： Se-Kang Park ,  Ki-Cheol Lee ,  Sang-Hyun Doh ,  Yun-Je Oh

发明人： Se-Kang Park ,  Ki-Cheol Lee ,  Sang-Hyun Doh ,  Yun-Je Oh

IPC分类号： H04J14/02

CPC分类号： H04Q11/0005 ,  H04Q2011/0011 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/002 ,  H04Q2011/0024

摘要： Disclosed is a wavelength division multiplexing optical switching system, which is connected with a plurality of nodes of an optical network and supports communication between the nodes. The optical switching system includes a wavelength division demultiplexing unit which demultiplexes optical signals received from each of the plurality of nodes and outputs them as channels with different wavelengths. A routing unit which classifies the channels in accordance with destinations thereof. A fixed wavelength converting unit which converts the classified channels into channels of a single wavelength, the single wavelength being allocated in accordance with corresponding starting places. A wavelength division multiplexing unit which collects the wavelength-converted channels in accordance with destinations and then outputs them as multiplexed optical signals.

摘要翻译： 公开了一种波分复用光交换系统，其与光网络的多个节点连接并且支持节点之间的通信。 光交换系统包括波分多路复用单元，其对从多个节点中的每一个接收的光信号进行解复用，并将其作为具有不同波长的信道输出。 路由单元，其根据其目的地对信道进行分类。 固定波长转换单元，其将分类的信道转换成单个波长的信道，单个波长根据相应的起始位置被分配。 波分复用单元，根据目的地收集波长转换的信道，然后作为复用的光信号输出。

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：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：US07280754B2

公开(公告)日：2007-10-09

申请号：US10632480

申请日：2003-08-01

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

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

IPC分类号： H04J14/02

CPC分类号： H04J14/0297 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0283 ,  H04J14/0287 ,  H04J14/0291 ,  H04J14/0295

摘要： Disclosed is a two-fiber optical ring network having a plurality of nodes linked by first and second fiber optic links, wherein each node comprises a first splitting section for splitting optical signals from optical signals traveling through the first fiber into the protection channels; a first add/drop section for performing adding and/or dropping optical signals passing through the first splitting section to a plurality of channels; a first switching section for combining optical signals in the protection channels to the first fiber when there is no link failure between adjacent nodes and for combining optical signals in the protection channels to the second fiber when there is a link failure between adjacent nodes; and, a controlling section for identifying whether or not the optical link failure occurs in the fibers and for generating a control signal to activate a restoration process according to the identified outcome.

摘要翻译： 公开了具有由第一和第二光纤链路链接的多个节点的双光纤光环网络，其中每个节点包括第一分离部分，用于将从第一光纤传播的光信号的光信号分离成保护信道; 用于执行将通过所述第一分离部分的光信号添加和/或丢弃到多个信道的第一加/减部分; 第一切换部分，当相邻节点之间没有链路故障时，将保护信道中的光信号与第一光纤组合，并且当相邻节点之间存在链路故障时，将保护信道中的光信号组合到第二光纤; 以及控制部分，用于识别在光纤中是否发生光链路故障，并且根据所识别的结果产生用于激活恢复过程的控制信号。

公开(公告)号：US07167302B2

公开(公告)日：2007-01-23

申请号：US10674102

申请日：2003-09-29

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

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

IPC分类号： H01S3/00

CPC分类号： H01S3/094003 ,  H01S3/06754 ,  H01S3/094023 ,  H01S3/2383 ,  H01S2301/04

摘要： A wideband erbium-doped optical fiber amplifier is disposed among an optical fiber through which a first and second band-band optical signals (for example, the C-band and L-band) are transmitted and forms a first optical path and a second optical path parallel to each other. The wideband erbium-doped optical fiber amplifier comprising a first amplifying section disposed on the first optical path, including a first erbium-doped optical fiber to amplify the first-band optical signals, a filter to gain-flatten the amplified first-band optical signals, wherein a reflected portion of the first band optical signal by the filter is directed to the second optical path; and a second amplifying section disposed on the second optical path, having a second erbium-doped optical fiber to amplify received second-band optical signals, wherein the reflected first-band optical signal is used to pump the second erbium-doped optical fiber.

摘要翻译： 宽带掺铒光纤放大器设置在第一和第二带隙光信号（例如，C波段和L波段）之间的光纤中，并形成第一光路和第二光路 路径彼此平行。 宽带掺铒光纤放大器，包括设置在第一光路上的第一放大部分，包括第一掺铒光纤以放大第一波段光信号;滤波器，用于对放大的第一波段光信号进行平坦化 其中，所述滤波器的所述第一频带光信号的反射部分被引导到所述第二光路; 以及第二放大部分，其设置在所述第二光路上，具有第二掺铒光纤以放大所接收的第二带光信号，其中所述反射的第一带光信号用于泵浦所述第二掺铒光纤。

公开(公告)号：US07292784B2

公开(公告)日：2007-11-06

申请号：US10792584

申请日：2004-03-03

申请人： Ki-Cheol Lee ,  Jong-Kwon Kim ,  Jun-Ho Koh ,  Sang-Hyun Doh ,  Se-Kang Park

发明人： Ki-Cheol Lee ,  Jong-Kwon Kim ,  Jun-Ho Koh ,  Sang-Hyun Doh ,  Se-Kang Park

IPC分类号： H04J14/02

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q11/0071

摘要： A high speed optical routing apparatus and method, in which data traffic, such as an IP packet, an Ethernet frame, etc., is switched in an optical frame unit at a high speed. The apparatus is provided with a plurality of input and output ports, and with one add port for adding data received from a lower IP router, and one drop port for dropping processed data toward the lower IP router. A header wavelength dividing unit extracts the header wavelength signals from among input optical signals inputted through the input ports and the add port. The header wavelength signals contain header information on data wavelength signals contained in the input optical signals. An optical signal inputting section demultiplexes optical signals having the data signals according to the wavelength, and for dividing and inputting the wavelength-based demultiplexed data wavelength signals according to a frame. The data wavelength signals are divided with the header wavelength signals through the header wavelength dividing section, an optical switch for switching the frame-based divided optical signals outputted from the optical signal inputting, an optical signal outputting section for combining the frame-based divided optical signals switched and outputted at the optical switch, for wavelength-multiplexing the combined optical signals into one output optical signal and for outputting the multiplexed output optical signal, a controlling section for controlling the optical signal inputting section, the optical switch and the optical signal outputting section.

摘要翻译： 高速光路由装置和方法，其中诸如IP分组，以太网帧等的数据业务以高速度切换到光学帧单元中。 该装置具有多个输入和输出端口，并且具有用于添加从较低IP路由器接收的数据的一个添加端口和用于将处理后的数据向下IP路由器丢弃的一个丢弃端口。 标题波长分割单元从通过输入端口和加法端口输入的输入光信号中提取标题波长信号。 标题波长信号包含关于包含在输入光信号中的数据波长信号的标题信息。 光信号输入部根据波长对具有数据信号的光信号进行解复用，并根据帧分割输入基于波长的解复用数据波长信号。 数据波长信号通过标题波长分割部分与标题波长信号分开，用于切换从光信号输入输出的基于帧的划分的光信号的光开关，用于组合基于帧的分割光信号的光信号输出部分 信号在光开关处切换并输出，用于将组合的光信号波长复用为一个输出光信号并输出​​多路复用的输出光信号;控制部分，用于控制光信号输入部分，光开关和光信号输出 部分。

公开(公告)号：US20060018334A1

公开(公告)日：2006-01-26

申请号：US11005590

申请日：2004-12-06

申请人： Jae-Hun Cho ,  Yun-Je Oh ,  Jun-Ho Koh ,  Ki-Cheol Lee

发明人： Jae-Hun Cho ,  Yun-Je Oh ,  Jun-Ho Koh ,  Ki-Cheol Lee

IPC分类号： H04J3/26

CPC分类号： H04J14/0226 ,  H04H20/69 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04L12/2801 ,  H04N21/43632 ,  H04Q11/0067 ,  H04Q2011/0016

摘要： A communication/broadcast multiplexer and demultiplexer for multiplexing and demultiplexing communication and broadcast signals using a specific transmission standard in an optical network system that integrates broadcast and communication services using a channel selection technique. The multiplexer comprises a broadcast data input unit, a communication data input unit, and a synchronous Ethernet framer. The broadcast data input unit receives broadcast data switched on a subscriber basis through a broadcast switch in an optical line terminal (OLT) in the system, and transfers it as a synchronous data frame to the synchronous Ethernet framer. The communication data input unit receives communication data on a subscriber basis through an Ethernet switch in the OLT and transfers it as an asynchronous data frame to the synchronous Ethernet framer. The synchronous Ethernet framer converts both the received synchronous and asynchronous data frames into a TDM synchronous Ethernet frame, and outputs the TDM synchronous Ethernet frame.

摘要翻译： 一种通信/广播多路复用器和解复用器，用于在使用信道选择技术集成广播和通信服务的光网络系统中使用特定传输标准来复用和解复用通信和广播信号。 多路复用器包括广播数据输入单元，通信数据输入单元和同步以太网成帧器。 广播数据输入单元通过系统中的光线路终端（OLT）中的广播交换机接收基于用户切换的广播数据，并将其作为同步数据帧传送到同步以太网成帧器。 通信数据输入单元通过OLT中的以太网交换机在用户基础上接收通信数据，并将其作为异步数据帧传送到同步以太网成帧器。 同步以太网成帧器将接收到的同步和异步数据帧转换为TDM同步以太网帧，并输出TDM同步以太网帧。

公开(公告)号：US20050025485A1

公开(公告)日：2005-02-03

申请号：US10776726

申请日：2004-02-11

申请人： Ki-Cheol Lee ,  Chang-Dong Kim ,  Yun-Je Oh ,  Jun-Ho Koh

发明人： Ki-Cheol Lee ,  Chang-Dong Kim ,  Yun-Je Oh ,  Jun-Ho Koh

IPC分类号： H04J1/02 ,  H04B10/00 ,  H04B10/2581 ,  H04H1/02 ,  H04H20/69 ,  H04J14/00 ,  H04J14/02

CPC分类号： H04H20/69 ,  H04J14/0226 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04J14/0298

摘要： A subscriber interface device and method for transmitting a communication signal and a broadcasting signal to each subscriber in a communication-broadcasting convergence FTTH system. A subscriber interface, positioned in the ONU, modulates a first predetermined number of broadcasting signals selected by a subscriber among broadcasting signals received from an OLT, combines a baseband communication signal received from the OLT with the modulated broadcasting signals, and optically transmits the combined communication-broadcasting signal. A subscriber interface receiver positioned in an ONT, splits the combined communication-broadcasting signal, filters the split signals to respective frequency bands, modulates the filtered broadcasting signals, transmits the modulated broadcasting signals to a monitor of the subscriber, and transmits the filtered communication signal as a baseband signal to a communication terminal of the subscriber instead of a passband signal.

摘要翻译： 一种用于在通信广播收敛FTTH系统中向每个用户发送通信信号和广播信号的用户接口设备和方法。 定位在ONU中的订户接口在从OLT接收的广播信号中调制由用户选择的第一预定数量的广播信号，将从OLT接收的基带通信信号与已调制广播信号组合，并光学地发送组合通信 广播信号。 定位在ONT中的用户接口接收机，分离组合的通信广播信号，将分离的信号滤波到相应的频带，调制滤波的广播信号，将调制后的广播信号发送给用户的监视器，并发送经滤波的通信信号 作为到用户的通信终端的基带信号，而不是通带信号。