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：US20060239303A1

公开(公告)日：2006-10-26

申请号：US11410422

申请日：2006-04-25

申请人： Jae-Hun Cho ,  Jong-Ho Yoon ,  Kwan-Soo Lee ,  Yun-Je Oh ,  Jun-Ho Koh ,  Si-Hai Wang ,  Sang-Ho Kim

发明人： Jae-Hun Cho ,  Jong-Ho Yoon ,  Kwan-Soo Lee ,  Yun-Je Oh ,  Jun-Ho Koh ,  Si-Hai Wang ,  Sang-Ho Kim

IPC分类号： H04J3/06 ,  H04J3/12 ,  H04J3/02

CPC分类号： H04J3/1682 ,  H04J3/0638

摘要： Disclosed is a method of performing a periodical synchronization at a predetermined transmission link for ensuring a start of a super frame in a residential Ethernet system. The method includes the steps of ensuring a start of a first predetermined super frame at the predetermined transmission link, transmitting Sync frames and Async frames through a predetermined number (N-1) of super frames, in which N is a total number of the super frames, and controlling an Async frame to be transmitted at an end point of the (N-1) super frames in such a manner that a start of a next super frame (Nth super frame) is strictly ensured, thereby maintaining a synchronization for the start of the super frame.

摘要翻译： 公开了一种在预定的传输链路上执行周期性同步的方法，以确保在住宅以太网系统中启动超帧。 该方法包括以下步骤：确保在预定传输链路上开始第一预定超帧，通过预定数量（N-1）超帧传输同步帧和异步帧，其中N是超级帧的总数 帧，并且控制在（N-1）个超帧的终点处发送的异步帧，使得下一个超帧（N ^{超帧）的开始是严格的 从而保持超帧开始的同步。}

公开(公告)号：US20060233169A1

公开(公告)日：2006-10-19

申请号：US11406678

申请日：2006-04-19

申请人： Sihai Wang ,  Kwan-Soo Lee ,  Jun-Ho Koh ,  Sang-Ho Kim ,  Jae-Hun Cho

发明人： Sihai Wang ,  Kwan-Soo Lee ,  Jun-Ho Koh ,  Sang-Ho Kim ,  Jae-Hun Cho

IPC分类号： H04L12/56 ,  H04L12/43

CPC分类号： H04L49/351 ,  H04L49/201 ,  H04L49/3009 ,  H04L49/3072

摘要： A Residential Ethernet switching apparatus for performing time slot switching includes an input unit for receiving frames as input, and a parser for parsing the received frames into asynchronous Ethernet frames (AsyncE frames) and Residential Ethernet frames (ResE frames). An AsyncE switching processor performs a switching operation for an AsyncE frame parsed by the parser. A ResE switching processor performs, according to positions of time slots included in a ResE frame parsed, a virtual MAC (VMAC) processing for the ResE frame The ResE switching processor also performs a switching operation based on a result of the VMAC processing. A multiplexer multiplexes the AsyncE frame switched by the AsyncE switching processor, and the ResE frame switched by the ResE switching processor, for output.

摘要翻译： 用于执行时隙切换的住宅以太网交换设备包括用于接收帧作为输入的输入单元和用于将接收的帧解析成异步以太网帧（AsyncE帧）和住宅以太网帧（ResE帧）的解析器。 AsyncE交换处理器对解析器解析的AsyncE帧执行切换操作。 ResE切换处理器根据解析的ResE帧中包含的时隙的位置执行针对ResE帧的虚拟MAC（VMAC）处理.RESE切换处理器还基于VMAC处理的结果执行切换操作。 多路复用器复用由AsyncE切换处理器切换的AsyncE帧和由ResE切换处理器切换的ResE帧，以进行输出。

公开(公告)号：US20060230146A1

公开(公告)日：2006-10-12

申请号：US11375830

申请日：2006-03-15

申请人： Sihai Wang ,  Sang-Ho Kim ,  Jae-Hun Cho ,  Fei-Fei Feng ,  Yun-Je Oh ,  Jun-Ho Koh

发明人： Sihai Wang ,  Sang-Ho Kim ,  Jae-Hun Cho ,  Fei-Fei Feng ,  Yun-Je Oh ,  Jun-Ho Koh

IPC分类号： G06F15/173

CPC分类号： H04L12/413

摘要： A method for generating a super frame of a predetermined size in a a residential Ethernet system for separately transmitting isochronous data and asynchronous data includes the steps of: receiving by the residential Ethernet system the isochronous data and the asynchronous data to be transmitted through the residential Ethernet system; dividing the received isochronous data into a plurality of sub-frames according to synchronous links; inserting an Ethernet header into each of the sub-frames, thereby generating a plurality of isochronous packets; and employing a remaining area, which is obtained by excepting an area of the isochronous packets from the predetermined size, as an asynchronous packet area, and inserting asynchronous packets including the asynchronous data into the asynchronous packet area.

摘要翻译： 一种用于在住宅以太网系统中生成预定尺寸的超帧的方法，用于分别发送等时数据和异步数据包括以下步骤：由住宅以太网系统接收将通过住宅以太网系统传输的同步数据和异步数据 ; 根据同步链路将接收到的等时数据划分为多个子帧; 将以太网报头插入到每个子帧中，从而生成多个同步分组; 并且将通过将来自预定大小的同步分组的区域除外获得的剩余区域用作异步分组区域，并将包括异步数据的异步分组插入到异步分组区域中。

公开(公告)号：US20060209888A1

公开(公告)日：2006-09-21

申请号：US11384723

申请日：2006-03-20

申请人： Sang-Ho Kim ,  Jun-Ho Koh ,  Kyung-Ho Chae ,  Yun-Je Oh

发明人： Sang-Ho Kim ,  Jun-Ho Koh ,  Kyung-Ho Chae ,  Yun-Je Oh

IPC分类号： H04J3/16

CPC分类号： H04L65/605 ,  H04L12/1854 ,  H04L12/189 ,  H04L29/06027 ,  H04L65/103 ,  H04L65/104 ,  H04L65/4076 ,  H04W4/18 ,  H04W80/00

摘要： A packet type retransmission system for DMB services includes a DMB device for receiving multimedia data from a content provider, for converting the multimedia data to DMB data for DMB transmission, and for transmitting the DMB data. A broadcasting transfer medium transfers the DMB data transmitted through the DMB device. A DMB-IP converter receives the DMB data transferred through the broadcasting transfer media and converts the DMB data to packet based data. An IP based multimedia transmitting device outputs the packet based multimedia data converted through the DMB-IP converter to user devices.

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：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。

公开(公告)号：US20050141623A1

公开(公告)日：2005-06-30

申请号：US10862610

申请日：2004-06-07

申请人： Jae-Hun Cho ,  Sang-Ho Kim ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Yun-Je Oh

发明人： Jae-Hun Cho ,  Sang-Ho Kim ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Yun-Je Oh

IPC分类号： H04L29/10 ,  H04N7/12 ,  H04N7/24

CPC分类号： H04L12/413 ,  H04L65/607 ,  H04N21/23608 ,  H04N21/4344 ,  H04N21/43632

摘要： Disclosed is a transport stream transmission apparatus, for example an MPEG Motion Picture Experts Group)—transport stream transmission apparatus. The transmission apparatus comprising a transmitter including a first media independent interface to generate a data stream, the data stream having a preamble and at least one transport stream, and a first physical layer device to receive a data frame from the first media independent interface, a back plane board to receive the data frame from the transmitter, and enable distribution of the received data frame to individual subscribers, and a second media independent interface to receive at least one transport stream from the second physical layer device, and enable individual subscribers to received transport stream, wherein the second media independent interface includes a second physical layer device to identify a preamble of the data frame received from the back plane board, perform a clock recovery operation, and generate at least one transport stream of the data frame.

摘要翻译： 公开了传输流传输装置，例如MPEG运动图像专家组） - 传输流传输装置。 传输设备包括发射机，其包括用于生成数据流的第一媒体独立接口，所述数据流具有前导码和至少一个传输流，以及第一物理层设备，用于从所述第一媒体独立接口接收数据帧; 背板接收来自发射机的数据帧，并且使接收到的数据帧能够分配给各个用户;以及第二媒体独立接口，用于从第二物理层设备接收至少一个传输流，并使各个用户能够接收 传输流，其中所述第二媒体独立接口包括第二物理层设备，以识别从所述背板接收的数据帧的前同步码，执行时钟恢复操作，并且生成所述数据帧的至少一个传输流。

公开(公告)号：US20050002670A1

公开(公告)日：2005-01-06

申请号：US10771793

申请日：2004-02-04

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

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

IPC分类号： H01S5/50 ,  G02B6/293 ,  H04J14/02

CPC分类号： H04J14/02 ,  H04B10/506 ,  H04J14/0221

摘要： A multi-wavelength light source unit for optical communication system is disclosed. The light source includes a demultiplexer for demultiplexing a multiplexed light signal into a plurality of lights having different wavelengths and a multiplexer that receives the demultiplexed lights and multiplexes the demultiplexed lights into the multiplexed light signal. Input ports of the multiplexer are respectively port-to-port connectable to each one of a plurality of output ports of the demultiplexer. The light source unit includes a plurality of semiconductor optical amplifiers amplifying the demultiplexed lights output form the demultiplexer, and a plurality of beam splitters for splitting the amplified demultiplexed lights into two parts, so as to provide the respective input ports of the multiplexer with a split part of the lights, while to transmit the other part of the lights out of the beam splitters.

摘要翻译： 公开了一种用于光通信系统的多波长光源单元。 光源包括用于将复用的光信号解复用为具有不同波长的多个光的解复用器，以及接收解复用的光并将解复用的光复用到复用的光信号中的多路复用器。 多路复用器的输入端口分别是可连接到解复用器的多个输出端口中的每一个的端口到端口。 光源单元包括放大从解复用器输出的解复用光的多个半导体光放大器和用于将放大的解复用光分成两部分的多个分束器，以便将多路复用器的相应输入端口分配 部分灯光，同时将其他部分的光线从光束分离器传出。

公开(公告)号：US06580553B2

公开(公告)日：2003-06-17

申请号：US10046355

申请日：2002-01-14

申请人： Chan-Youl Kim ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Jun-Ho Koh

发明人： Chan-Youl Kim ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Jun-Ho Koh

IPC分类号： H01S300

CPC分类号： H01S3/06754 ,  H01S3/10015 ,  H01S3/1301

摘要： An automatic gain control device of an optical fiber amplifier that outputs a compensation signal to control a gain value of the optical fiber amplifier is disclosed. The device includes: a first optical detector for partially converting an input optical signal to the optical fiber amplifier into a first electrical signal; a second optical detector for partially converting an output optical signal from the optical fiber amplifier into a second electrical signal; a first programmable amplifier having a first gain value set based on a first control signal, the first programmable amplifier inputting the first electrical signal and amplifying it at the first gain value to output a first amplified signal; a second programmable amplifier having a second gain value set based on a second control signal, the second programmable amplifier inputting the second electrical signal and amplifying it at the second gain value to output a second amplified signal; a proportional-integral derivative (PID) for outputting the compensation signal, the compensation signal corresponding to the difference between the power level of the first amplified signal and the power level of the second electrical signal; and, a controller for outputting the second control signal to the second programmable amplifier such that it has the second gain value based on a third gain value and for varying the first gain value of the first programmable amplifier until the first electrical signal and second amplified signal become the same in power level, thereby changing the gain value of the optical fiber amplifier to the third gain value.

摘要翻译： 公开了一种输出补偿信号以控制光纤放大器的增益值的光纤放大器的自动增益控制装置。 该装置包括：第一光学检测器，用于将输入光信号部分地转换成光纤放大器为第一电信号; 第二光学检测器，用于将来自光纤放大器的输出光信号部分地转换成第二电信号; 第一可编程放大器，具有基于第一控制信号设定的第一增益值，第一可编程放大器输入第一电信号并以第一增益值放大第一增益值，以输出第一放大信号; 第二可编程放大器，具有基于第二控制信号设定的第二增益值，第二可编程放大器输入第二电信号并以第二增益值放大第二增益值，以输出第二放大信号; 用于输出所述补偿信号的比例积分微分（PID），所述补偿信号对应于所述第一放大信号的功率电平与所述第二电信号的功率电平之差; 以及控制器，用于将第二控制信号输出到第二可编程放大器，使得其具有基于第三增益值的第二增益值，并且用于改变第一可编程放大器的第一增益值，直到第一电信号和第二放大信号 在功率电平上变得相同，从而将光纤放大器的增益值改变为第三增益值。