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1. 发明授权

US06738553B2 Opto-electrical cross connect device of high density 失效
标题翻译：高密度光电交联装置
公开(公告)号：US06738553B2
公开(公告)日：2004-05-18
申请号：US09921184
申请日：2001-08-02
申请人： Byung-Jik Kim , Yun-Je Oh , Seong-Taek Hwang , Jun-Ho Koh , Sang-Ho Kim
发明人： Byung-Jik Kim , Yun-Je Oh , Seong-Taek Hwang , Jun-Ho Koh , Sang-Ho Kim
IPC分类号： G02B600
CPC分类号： G02B6/3582 , G02B6/3598
摘要： Disclosed is an opto-electrical cross connect device of high density including a shelf having a plurality of guide rails at its inner portions; a switch motherboard disposed on the rear surface of the shelf; an electric crosspoint switch positioned on the front surface of the switch motherboard; a plurality of switch connectors positioned on the front surface of the switch motherboard; an optical transceiver board mounted in the guide rail of the shelf; and, a transceiver connector disposed at the rear end of the optical transceiver board for connecting to the switch connector of the switch motherboard.
摘要翻译：公开了一种高密度的光电交叉连接装置，包括在其内部具有多个导轨的搁板; 设置在搁板后表面上的开关母板; 位于开关母板的前表面上的电交叉点开关; 位于开关母板的前表面上的多个开关连接器; 安装在搁架的导轨中的光收发板; 以及设置在光收发板的后端的收发器连接器，用于连接到开关母板的开关连接器。

2. 发明授权

US06944405B2 Bit-rate-independent optical cross-connect device in optical transmission system 失效
标题翻译：光传输系统中的比特率独立光交叉设备
公开(公告)号：US06944405B2
公开(公告)日：2005-09-13
申请号：US09953637
申请日：2001-09-17
申请人： Han-Lim Lee , Byung-Jik Kim , Jun-Ho Koh , Seong-Taek Hwang , Yun-Je Oh
发明人： Han-Lim Lee , Byung-Jik Kim , Jun-Ho Koh , Seong-Taek Hwang , Yun-Je Oh
IPC分类号： H04B10/00 , H04B10/27 , H04Q3/52 , H04Q11/00 , H04Q11/04 , H04B10/08 , H04B17/00
CPC分类号： H04Q11/0005 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0039 , H04Q2011/0045
摘要： This invention provides an optical transmission with a demultiplexer for demultiplexing an input optical signal into optical signals of different channels and a multiplexer for multiplexing the optical signals outputted from the demultiplexer. The optical cross-connect device includes: N BICDR (Bit Rate Independent Clock and Data Recovery) receivers each for receiving the associated optical signals outputted from the demultiplexer, for converting the associated optical signal into an electrical signal and reproducing clocks and data based on the bit rate of the electrical signal; a switchboard with a cross-connect switch for receiving output signals from the respective N BICDR receiver; N bit rate discriminating units for receiving the output signals from the N BICDR receivers, respectively, thereby outputting bit rate discriminating signals associated with the N BICDR receivers, respectively; a temperature sensing unit for outputting a temperature sensing signal; and, a central processing unit for receiving the bit rate discriminating signals from the N bit rate discriminating unit, along with the temperature sensing signal from the temperature sensing unit, for compensating each of the received bit rate discriminating signals with a temperature-dependent bit rate value read out, based on the temperature sensing signal, from a memory, and for controlling the bit rate of the associated BICDR receiver based on the compensated bit rate.
摘要翻译：本发明提供了一种具有解复用器的光传输器，用于将输入光信号解复用为不同信道的光信号，以及复用器，用于复用从解复用器输出的光信号。光交叉设备包括：N个BICDR（比特率独立时钟和数据恢复）接收机，每个接收器用于接收从解复用器输出的相关联的光信号，用于将相关联的光信号转换成电信号，并基于该信号再现时钟和数据比特率的电信号; 具有交叉连接开关的交换机，用于接收来自相应N BICDR接收机的输出信号; N比特率鉴别单元，用于分别从N个BICDR接收机接收输出信号，从而分别输出与N个BICDR接收机相关联的比特率鉴别信号; 用于输出温度感测信号的温度检测单元; 以及用于从温度感测单元接收来自N比特率鉴别单元的比特率鉴别信号的中央处理单元，用于以温度依赖比特率对每个接收的比特率鉴别信号进行补偿基于温度感测信号从存储器读出，并且用于基于补偿的比特率来控制相关联的BICDR接收器的比特率。

3. 发明授权

US07171118B2 Optical cross-connect used in an optical network and method performed by the same 失效
标题翻译：在光网络中使用的光交叉连接和由其执行的方法
公开(公告)号：US07171118B2
公开(公告)日：2007-01-30
申请号：US10410561
申请日：2003-04-09
申请人： Sang-Ho Kim , Yun-Je Oh , Jun-Ho Koh , Byung-Jik Kim
发明人： Sang-Ho Kim , Yun-Je Oh , Jun-Ho Koh , Byung-Jik Kim
IPC分类号： H04J14/00 , H04B10/08
CPC分类号： H04Q11/0062 , H04Q11/0071 , H04Q2011/0039 , H04Q2011/0045 , H04Q2011/0079 , H04Q2011/0088
摘要： Disclosed are an apparatus and a method for shortening a processing time at each node in an optical network. A transmission optical cross-connect (OXC) determines a transmission rate corresponding to the transmission speed of the signal to be transmitted. An optical receiver and an optical transmitter are stabilized by means of the transmission rate. In addition, a transmission OXC transmits the transmission rate to an OXC aligned between the transmission OXC and the receiving OXC, thereby stabilizing the OXC. Each of the OXCs detects the transmission speed of the optical signal to be received so that a time required for converting the transmission speed is reduced.
摘要翻译：公开了一种缩短光网络中每个节点处理时间的装置和方法。传输光交叉连接（OXC）确定与要传输的信号的传输速度相对应的传输速率。光接收机和光发射机通过传输速率稳定。此外，传输OXC将传输速率传输到在传输OXC和接收OXC之间对齐的OXC，从而使OXC稳定。每个OXC检测要接收的光信号的传输速度，从而减少转换传输速度所需的时间。

4. 发明授权

US06931210B2 Bit-rate-independent optical receiver 失效
标题翻译：比特率独立光接收机
公开(公告)号：US06931210B2
公开(公告)日：2005-08-16
申请号：US09946211
申请日：2001-09-05
申请人： Sang-Ho Kim , Seong-Taek Hwang , Jun-Ho Koh , Yun-Je Oh
发明人： Sang-Ho Kim , Seong-Taek Hwang , Jun-Ho Koh , Yun-Je Oh
IPC分类号： H04B10/40 , H04B10/07 , H04B10/50 , H04B10/60 , H04B10/66 , H04L7/02 , H04B10/00 , H04B10/08 , H04B10/12 , H04B10/16 , H04B10/20
CPC分类号： H04B10/6932
摘要： Disclosed is a bit-rate-independent optical receiver including: a bit rate sensing unit for optoelectrically converting an input optical signal, while outputting a bit rate sensing signal; a variation sensing unit for outputting a bit rate variation sensing signal; a temperature sensing unit for sensing an internal temperature and outputting a temperature sensing signal; a signal reproducing unit for reproducing data and clocks, and in response to a clock correction signal, reproducing the data and clocks based on the clock correction signal; and, a control unit for calculating the bit rate based on the voltage level of the bit rate sensing signal in response to receiving the variation sensing signal, and compensating the calculated bit rate for errors resulting from a variation in temperature, and outputting a clock correction signal indicative of the temperature-compensated bit rate to the signal reproducing unit.
摘要翻译：公开了一种比特率独立的光接收机，包括：比特率感测单元，用于在输出比特率感测信号的同时对输入的光信号进行光电转换; 用于输出比特率变化感测信号的变化感测单元; 温度感测单元，用于感测内部温度并输出温度感测信号; 信号再现单元，用于再现数据和时钟，并响应于时钟校正信号，基于时钟校正信号再现数据和时钟; 以及控制单元，用于响应于接收到变化感测信号而基于比特率感测信号的电压电平计算比特率，并且补偿由于温度变化导致的错误的计算比特率，并输出时钟校正指示信号再现单元的温度补偿比特率的信号。

5. 发明授权

US07039327B2 Self-healing apparatus and method of optical receiver 失效
公开(公告)号：US07039327B2
公开(公告)日：2006-05-02
申请号：US09945895
申请日：2001-09-04
申请人： Sang-Ho Kim , Yun-Je Oh , Seong-Taek Hwang , Jun-Ho Koh
发明人： Sang-Ho Kim , Yun-Je Oh , Seong-Taek Hwang , Jun-Ho Koh
IPC分类号： H04B10/00 , H04B10/06 , H03K11/00 , H04L25/60 , H04L25/64
CPC分类号： H04B10/6932 , H04Q11/0003 , H04Q2011/0043 , H04Q2011/0049
摘要： Disclosed is a self-healing apparatus and method of an optical receiver that is capable of avoiding error due to temperature variation in the optical receiver when determining the bit rate. The apparatus includes an optoelectric converting unit for converting an input optical signal into an electrical signal; an amplifying unit for amplifying the electrical signal outputted from the optoelectric converting unit; a bit rate discriminating unit for exclusively OR'ing the electrical signal with a delay signal that is delayed from the amplified receiving signal by a predetermined time, thereby outputting a recognition signal; a clock/data reproducing unit for receiving the electrical signal, and for reproducing clocks and data based on a reference clock; a bit rate signal generating unit for generating the reference clock in response to a bit rate change signal; a temperature sensing unit for outputting a temperature sensing signal that is indicative of the internal temperature of the optical receiver; and, a control unit for determining the bit rate of the receiving signal based on a value selected from temperature-dependent voltage level variation values that are previously stored, on the basis of the voltage level of the recognition signal outputted from the bit rate discriminating unit and the internal temperature of the optical receiver corresponding to the temperature sensing signal, and for outputting the bit rate change signal based on the determined bit rate.

6. 发明授权

US07120848B2 Apparatus and method for forward error correction 有权
标题翻译：前向纠错装置及方法
公开(公告)号：US07120848B2
公开(公告)日：2006-10-10
申请号：US10358535
申请日：2003-02-05
申请人： Yong-Deok Kim , Yun-Je Oh , Jun-Ho Koh , Han-Lim Lee , Byung-Jik Kim , Chan-Youl Kim
发明人： Yong-Deok Kim , Yun-Je Oh , Jun-Ho Koh , Han-Lim Lee , Byung-Jik Kim , Chan-Youl Kim
IPC分类号： H03M13/00
CPC分类号： H04L1/0047
摘要： The provided forward error correction (FEC) apparatus for a transmission system includes a low pass filter (LPF) passing only a low frequency component of an input signal having a predetermined transmission rate; an AC power meter converting an energy value of an signal output from the LPF into a DC voltage value; a logarithm amplifier converting the exponentially varying DC voltage value from the AC power meter into a linear logarithmically varying DC voltage value; a digital signal processor (DSP) determining the transmission rate of the input signal according to a magnitude of the linear DC voltage value and outputting a control signal according to the transmission rate; a clock generator receiving the control signal and generating a clock signal according to the control signal; and a FEC module receiving the clock signal and performing FEC operation on the received signal. A method for FEC is also provided.
摘要翻译：所提供的用于传输系统的前向纠错（FEC）装置包括仅通过具有预定传输速率的输入信号的低频分量的低通滤波器（LPF）; 将从LPF输出的信号的能量值转换为DC电压值的AC功率计; 对数放大器将来自AC功率计的指数变化的DC电压值转换成线性对数变化的DC电压值; 数字信号处理器（DSP），根据线性DC电压值的大小确定输入信号的传输速率，并根据传输速率输出控制信号; 接收所述控制信号并根据所述控制信号产生时钟信号的时钟发生器; 以及FEC模块，接收时钟信号并对接收到的信号执行FEC操作。还提供了一种用于FEC的方法。

7. 发明授权

US07412164B2 Photoelectric cross-connect system 失效
标题翻译：光电交叉连接系统
公开(公告)号：US07412164B2
公开(公告)日：2008-08-12
申请号：US10425699
申请日：2003-04-29
申请人： Jeong-Seok Choi , Yun-Je Oh , Jun-Ho Koh , Chang-Hyun Lee , Byung-Jik Kim , Jeong-Rok Park
发明人： Jeong-Seok Choi , Yun-Je Oh , Jun-Ho Koh , Chang-Hyun Lee , Byung-Jik Kim , Jeong-Rok Park
IPC分类号： H04B10/00
CPC分类号： H04L1/22
摘要： A photoelectric cross-connect system for an optical-communication system minimizes service recovery time when an error is generated. A plurality of nodes are connected by an optical-transmission line wherein each nodes automatically recognizes a data rate of an input signal and communicates over a redundant channel with an adjacent node when there is a certain type of error. An optical-receiving unit receives an optical signal performs O/E conversion. A main optical-transmitting unit recovers clock and data signals according to the converted signal and sets a data rate according to the converted signal for subsequent transmission; a redundant optical-transmitting unit recovers a clock and data according to the converted signal and sets a data rate according to the converted signal for subsequent transmission A switch provides selectively connection state between the optical-receiving unit and the main optical-transmitting unit and between the optical-receiving unit and the redundant optical-transmitting unit.
摘要翻译：用于光通信系统的光电交叉连接系统在产生错误时将服务恢复时间最小化。多个节点通过光传输线连接，其中每个节点自动识别输入信号的数据速率，并且当存在某种类型的错误时，通过冗余信道与相邻节点进行通信。光接收单元接收执行O / E转换的光信号。主光传输单元根据转换的信号恢复时钟和数据信号，并根据转换的信号设置数据速率用于随后的传输; 冗余光传输单元根据转换的信号恢复时钟和数据，并根据转换的信号设置数据速率用于后续发送。A交换机选择性地提供光接收单元和主光传输单元之间的连接状态，以及光接收单元和冗余光发射单元。

8. 发明授权

US06580553B2 Automatic gain control device of optical fiber amplifier 失效
标题翻译：光纤放大器自动增益控制装置
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。

9. 发明授权

US07130543B2 Bit rate-independent optical receiver 有权
公开(公告)号：US07130543B2
公开(公告)日：2006-10-31
申请号：US10043617
申请日：2002-01-10
申请人： Kyu-Hyoung Cho , Yun-Je Oh , Jun-Ho Koh , Byung-Jik Kim , Chan-Youl Kim , Chang-Hyun Lee
发明人： Kyu-Hyoung Cho , Yun-Je Oh , Jun-Ho Koh , Byung-Jik Kim , Chan-Youl Kim , Chang-Hyun Lee
IPC分类号： H04B10/00
CPC分类号： H04B10/6932
摘要： A bit rate-independent optical receiver ensures transparency with respect to changes of the transmission format and its associated bit rate in relation to an optical communications system. The optical receiver includes an opto-electric converter for converting an input optical signal into an electric signal, an amplifier circuit for amplifying the electrical signal, a bit rate-sensing circuit for generating a sensing signal with a voltage level determined on the basis of the bit rate of the electrical signal, a bit rate-recognition circuit for generating a recognition signal further amplified from the sensing signal, and a clock/data recovery circuit for reproducing a clock signal and data from the amplified electrical signal in accordance with a control signal. A controller determines a bit rate corresponding to the voltage level of the recognition signal by referring to a look-up table of the bit rate to the voltage level and provides the clock/data recovery circuit with the control signal representative of the bit rate.

10. 发明授权

US07081989B2 Wide-band fiber amplifier 失效
标题翻译：宽带光纤放大器
公开(公告)号：US07081989B2
公开(公告)日：2006-07-25
申请号：US10688560
申请日：2003-10-17
申请人： Kwan-Woong Song , Jun-Ho Koh , Seong-Taek Hwang , Yun-Je Oh
发明人： Kwan-Woong Song , Jun-Ho Koh , Seong-Taek Hwang , Yun-Je Oh
IPC分类号： H04B10/12 , H01S4/00
CPC分类号： H01S3/094003 , H01S3/06754 , H01S3/094023 , H01S3/2383
摘要： Disclosed is a wide-band fiber amplifier for amplifying C-band and L-band optical signals, including a first amplifying unit including a first amplifying fiber adapted to be (1) pumped in at least one direction (2) amplify both the C-band and L-band optical signals and (3) output Amplified Spontaneous Emission (ASE), a second amplifying unit including a second amplifying fiber adapted to be pumped by amplified ASE and secondarily amplify the amplified L-band optical signal, and an L-band pumping light source including a third amplifying fiber adapted to be pumped in at least one direction while being pumped by the ASE, and output amplified ASE used to pump the second amplifying fiber.
摘要翻译：公开了一种用于放大C波段和L波段光信号的宽带光纤放大器，包括第一放大单元，该第一放大单元包括第一放大光纤，该第一放大单元适于（1）在至少一个方向上泵浦（2）频带和L波段光信号，以及（3）输出放大自发辐射（ASE），第二放大单元，包括适于被放大的ASE泵浦的第二放大光纤，并且二次放大放大的L波段光信号，带泵浦光源，包括适于在被ASE泵浦的同时被泵浦至少一个方向的第三放大光纤，以及用于泵浦第二放大光纤的输出放大的ASE。

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