公开(公告)号：US07298976B2

公开(公告)日：2007-11-20

申请号：US10712962

申请日：2003-11-13

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

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

IPC分类号： H04J14/02

CPC分类号： H04Q11/0005 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0216 ,  H04Q2011/0035

摘要： Disclosed is an optical cross-connect device for communication between first and second optical networks communicating with each other using forward and backward optical signals each including of a plurality of channels. The device includes a first circulating part having first through fourth ports configured to output an optical signal, which is input to a higher-order port thereof, from a lower-order port thereof arranged adjacent to the higher-order port. The first circulating part is connected at the first and third ports thereof to a first optical network. A second circulating part has first through fourth ports configured to output an optical signal, which is input to a higher-order port thereof, from a lower-order port thereof arranged adjacent to the higher-order port. A first reflecting part is connected to respective second ports of the first and second circulating parts, and adapted to selectively reflect each channel of a forward optical signal which is input thereto or allow the channel to pass therethrough, and a second reflecting part is connected to respective fourth ports of the first and second circulating parts, and adapted to selectively reflect each channel of a backward optical signal which is input thereto or allow the channel to pass therethrough.

摘要翻译： 公开了一种用于在使用包括多个信道的前向和后向光信号彼此通信的第一和第二光网络之间进行通信的光交叉连接装置。 该装置包括具有第一至第四端口的第一循环部件，其被配置为从与高端口相邻布置的低级端口输出从其高级端口输入的光信号。 第一循环部分在其第一和第三端口连接到第一光网络。 第二循环部分具有第一至第四端口，被配置为从与高阶端口相邻布置的低级端口输出从其高阶端口输入的光信号。 第一反射部分连接到第一和第二循环部分的相应的第二端口，并且适于选择性地反射输入到其中的前向光信号的每个通道或允许通道穿过其中，并且第二反射部分连接到 相应的第一和第二循环部分的第四端口，并且适于选择性地反射输入到其中的反向光信号的每个通道，或允许通道通过。

公开(公告)号：US07103241B2

公开(公告)日：2006-09-05

申请号：US10686821

申请日：2003-10-16

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

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

IPC分类号： G02B6/26

CPC分类号： H04Q11/0005 ,  H04Q2011/0032 ,  H04Q2011/0035

摘要： An optical switching device has a plurality of input ports, and a plurality of output ports, that uses only circulators and reflectors to perform optical switching. A plurality of circulators each having a plurality of ports while operating to output an optical signal are input to a higher-order port thereof, to a lower-order port thereof arranged adjacent to the higher-order port. Each of the circulators being connected at a highest-order port thereof to an associated one of the input ports, at a lowest-order port thereof to an associated one of the output ports, and at each intermediate port thereof to a corresponding intermediate port of another one of the circulators. A plurality of reflectors each of which is adapted to reflect an optical signal, inputted thereto, or to allow the optical signal to pass there through. Each of the reflectors being connected between two intermediate ports of every two of the circulators connected to each other at the two intermediate ports. An optical signal input to an associated one of the input ports is output to an associated one of the output ports via at least one of the circulators.

摘要翻译： 光开关装置具有多个输入端口和多个输出端口，其仅使用循环器和反射器进行光切换。 在操作以输出光信号的同时具有多个端口的多个循环器被输入到其高阶端口，被连接到与较高端口相邻布置的低阶端口。 每个循环器以其最高阶端口连接到相关联的一个输入端口，其最低阶端口连接到相关联的一个输出端口，并且在其每个中间端口处于相应的中间端口 另一个循环器。 多个反射器，每个反射器适于反射输入的光信号，或允许光信号通过。 每个反射器连接在两个中间端口处彼此连接的每两个循环器的两个中间端口之间。 输入到相关联的一个输入端口的光信号经由循环器中的至少一个输出到相关联的一个输出端口。

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：US07272318B2

公开(公告)日：2007-09-18

申请号：US10770370

申请日：2004-02-02

申请人： Ki-Cheol Lee ,  Jong-Kwon Kim ,  Hak-Phil Lee ,  Jun-Ho Koh ,  Jong-Hun Lee ,  Tae-Sung Park

发明人： Ki-Cheol Lee ,  Jong-Kwon Kim ,  Hak-Phil Lee ,  Jun-Ho Koh ,  Jong-Hun Lee ,  Tae-Sung Park

IPC分类号： H04J14/08

CPC分类号： H04J14/007 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0282 ,  H04L5/0021

摘要： A passive optical network (PON) for providing a large amount of data at high speed to subscribers is provided. In particular, a PON employing a multi-carrier CDMA in which a CDMA method is applied for an upstream signal is provided. The PON employing a multi-carrier CDMA includes: optical network terminals (ONTs) for transmitting CDMA-based data using multiple carriers to an optical line terminal (OLT) and for receiving Ethernet-based data transmitted from the OLT; the OLT for transforming CDMA-based data received from the ONT into Ethernet-based data, for transmitting the Ethernet-based data to a higher network, and for transmitting Ethernet-based date to the ONTs; and an optical coupler for coupling CDMA-based optical signals transmitted from the ONTs, for transmitting the coupled optical signal to the OLT, and for distributing an Ethernet-based optical signal transmitted from the OLT to the ONTs.

摘要翻译： 提供了一种用于向用户高速提供大量数据的无源光网络（PON）。 特别地，提供了一种采用CDMA方法应用于上行信号的多载波CDMA的PON。 采用多载波CDMA的PON包括：用于向光线路终端（OLT）发送使用多个载波的基于CDMA的数据并用于接收从OLT发送的基于以太网的数据的光网络终端（ONT） 用于将从ONT接收的基于CDMA的数据转换成基于以太网的数据的OLT，用于将基于以太网的数据发送到较高的网络，以及用于将基于以太网的日期传送到ONT; 以及光耦合器，用于耦合从ONT发送的基于CDMA的光信号，用于将耦合的光信号发送到OLT，并用于将从OLT发送的基于以太网的光信号分发到ONT。

公开(公告)号：US07330650B2

公开(公告)日：2008-02-12

申请号：US10781037

申请日：2004-02-18

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

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

IPC分类号： H04J14/02

CPC分类号： H04J14/0291 ,  H04J14/02 ,  H04J14/0283

摘要： A bi-directional wavelength division multiplexing self-healing optical ring network is disclosed, in which N optical signals are processed at both first and second ring network so that a protection switch mechanism is performed when a link failure occurs in any one of the first and second ring networks. The bi-directional WDM self-healing optical ring network includes a plurality of nodes having optical add/drop multiplexers, each being provided on the first and second ring networks and further including a demultiplexer and a multiplexer, each of which has a capacity of 1×N; a pair of switching devices provided across the first and second ring networks and connected between the optical add/drop multiplexers and fiber optic links connected with another node; and, wavelength interleavers, each being provided on both ends of each optical add/drop multiplexer provided on the first and second ring networks, includes three ports, of which one port is connected to each switching device and allows for passing signals of all wavelength bands, another port allows for passing only signals of some wavelength bands processed on any one of the first and second ring networks, and the third port allows for passing only signals of the other wavelength bands processed on the other.

摘要翻译： 公开了一种双向波分复用自愈光环网，其中在第一和第二环网处理N个光信号，使得当链路故障发生在第一和第二环网中的任何一个时执行保护切换机制 第二环网络。 双向WDM自愈光环网包括具有光分插复用器的多个节点，每个节点都设置在第一和第二环网上，并且还包括解复用器和多路复用器，其中每个具有1xN的容量 ; 一对交换装置，设置在第一和第二环形网络之间并且连接在光学分插复用器和与另一节点连接的光纤链路之间; 并且每个设置在第一和第二环形网络上的每个光分插复用器的两端上设置的波长交织器包括三个端口，其中一个端口连接到每个开关装置，并允许通过所有波段的信号 另一个端口仅允许在第一和第二环网中的任何一个上处理的一些波长带的信号通过，并且第三端口允许仅传递在另一个上处理的其它波长带的信号。

公开(公告)号：US07277639B2

公开(公告)日：2007-10-02

申请号：US10754030

申请日：2004-01-08

申请人： Jong-Kwon Kim ,  Ki-Cheol Lee ,  Seong-Taek Hwang ,  Jun-Ho Koh

发明人： Jong-Kwon Kim ,  Ki-Cheol Lee ,  Seong-Taek Hwang ,  Jun-Ho Koh

IPC分类号： H04J14/02

CPC分类号： H04J14/0213 ,  H04J14/0212 ,  H04J14/0216

摘要： Disclosed is a bi-directional optical add/drop multiplexer connected to an optical fiber for transmitting optical signals multiplexed in a wavelength division multiplexing optical network and which performs adding/dropping of the optical signals. The optical add/drop multiplexer includes a first wavelength division multiplexer provided with a multiplexing port functioning as a path for forward or backward optical signals and with a plurality of demultiplexing ports, each functioning as a path of demultiplexed channels. A plurality of add/drop parts, each performing adding/dropping of preset channels, and connected with the demultiplexing ports of the first wavelength division multiplexer in one-to-one. A second wavelength division multiplexer connected with the plurality of add/drop parts in one-to-one, provided with a plurality of demultiplexing ports, each functioning as a path for demultiplexed channels and with a multiplexing port functioning as a path for forward or backward optical signals. The first wavelength division multiplexer has a free spectral range equal to that of the second wavelength division multiplexer, in which a wavelength band of the forward optical signals is included in the free spectral range having one period, while a wavelength band of the backward optical signals is included in the free spectral range having another period.

摘要翻译： 公开了一种连接到光纤的双向光分插复用器，用于传输在波分复用光网络中复用的光信号，并执行光信号的加/减。 光分插复用器包括：第一波分多路复用器，其配置有用作前向或后向光信号的路径的多路复用端口，以及多个解复用端口，每个用作解复用信道的路径。 多个加/减部分，各自执行预设通道的添加/删除，并且与第一波分多路复用器的解复用端口一一对应连接。 一个第二波分多路复用器与一对一的多个加/减部分连接，设置有多个解复用端口，每个解复用端口用作解复用信道的路径，并且具有用作前向或后向路径的复用端口 光信号。 第一波分复用器具有等于第二波分复用器的自由频谱范围，其中正向光信号的波段包括在具有一个周期的自由频谱范围内，而反向光信号的波段 被包括在具有另一个周期的自由光谱范围内。

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：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。

公开(公告)号：US07450581B2

公开(公告)日：2008-11-11

申请号：US10771943

申请日：2004-02-04

申请人： Ki-Cheol Lee ,  Yun-Je Oh ,  Tae-Sung Park ,  Jun-Ho Koh

发明人： Ki-Cheol Lee ,  Yun-Je Oh ,  Tae-Sung Park ,  Jun-Ho Koh

IPC分类号： H04L12/56

CPC分类号： H04Q11/0067 ,  H04J14/0226 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04J14/0298 ,  H04Q11/0066

摘要： An EPON for providing a subscriber with a high speed/high capacity data service and a real time digital broadcasting/image service includes an OLT for switching digital broadcasting/image data according to broadcasting/image selection information from each ONT, modulating the switched data into frequencies assigned to each ONT, coupling a broadcasting/image signal with a communication signal, and transmitting the coupled signal. The digital broadcasting/image data is transmitted from an outside broadcaster, the broadcasting/image signal is a combination of the modulated signals, and the communication signal is obtained by optically modulating communication data from an IP network. Further included in the EPON are multiple ONTs, and a divider for dividing the signal from the OLT for routing to each of the multiple ONTs, combining signals from the multiple ONTs, and transmitting the combined signal to the OLT.

摘要翻译： 用于为用户提供高速/高容量数据服务和实时数字广播/图像服务的EPON包括：根据来自每个ONT的广播/图像选择信息切换数字广播/图像数据的OLT，将切换的数据调制成 分配给每个ONT的频率，将广播/图像信号与通信信号耦合，并发送耦合信号。 数字广播/图像数据从外部广播者发送，广播/图像信号是调制信号的组合，并且通过光学地调制来自IP网络的通信数据获得通信信号。 EPON中还包括多个ONT，以及用于分离来自OLT的信号以用于路由到多个ONT中的每一个的分频器，组合来自多个ONT的信号，并将组合信号发送到OLT。