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1. 发明申请

US20050134398A1 Tunable high-order bessel low pass filter 有权
标题翻译：可调式高阶贝塞尔低通滤波器
公开(公告)号：US20050134398A1
公开(公告)日：2005-06-23
申请号：US10858925
申请日：2004-06-01
申请人： Seung Myong , Kwang Kim , Jyung Lee , Sang Lim
发明人： Seung Myong , Kwang Kim , Jyung Lee , Sang Lim
IPC分类号： H03H9/46 , H03H7/12
CPC分类号： H03H7/12
摘要： A tunable high-order Bessel low pass filter which is applied to a multi-rate duobinary generation system of an optical communication system. The tunable Bessel low pass filter comprises a variable inductor circuit including a plurality of variable inductors connected in series between an input signal terminal and an output signal terminal and controlled respectively by corresponding inductance control signals, a variable capacitor circuit including a plurality of variable capacitors connected respectively between corresponding connection nodes of the plurality of variable inductors of the variable inductor circuit and a ground terminal and controlled respectively by corresponding capacitance control signals, and a variable capacitor/inductor controller for outputting the corresponding capacitance control signals to the variable capacitors of the variable capacitor circuit and the corresponding inductance control signals to the variable inductors of the variable inductor circuit on the basis of preset values according to a given data rate, respectively. When the data rate of an application system is changed, the tunable Bessel low pass filter controls its filtering characteristics most appropriately to the changed data rate, so as to extend its application range and enhance performance and efficiency of the application system.
摘要翻译：一种可调谐的高阶贝塞尔低通滤波器，适用于光通信系统的多速率二进制生成系统。可调谐贝塞尔低通滤波器包括可变电感器电路，其包括串联连接在输入信号端子和输出信号端子之间的多个可变电感器，分别由相应的电感控制信号控制，可变电容器电路包括多个连接的可变电容器分别在可变电感器电路的多个可变电感器的相应连接节点和接地端子之间分别由相应的电容控制信号控制;以及可变电容器/电感器控制器，用于将相应的电容控制信号输出到变量的可变电容器电容器电路和相应的电感控制信号分别根据给定的数据速率在可变电感器的可变电感器的基础上进行预设值。当应用系统的数据速率发生变化时，可调式贝塞尔低通滤波器最适合改变数据速率控制其滤波特性，从而扩展其应用范围，提高应用系统的性能和效率。

2. 发明申请

US20050128555A1 Apparatus and method for automatically correcting bias voltage for carrier suppressed pulse generating modulator 失效
标题翻译：用于自动校正载波抑制脉冲发生调制器偏置电压的装置和方法
公开(公告)号：US20050128555A1
公开(公告)日：2005-06-16
申请号：US10863741
申请日：2004-06-07
申请人： Youn Jang , Kwang Kim , Jyung Lee , Seung Myong
发明人： Youn Jang , Kwang Kim , Jyung Lee , Seung Myong
IPC分类号： H04B10/18 , G02B26/00 , G02F1/00 , G02F1/01 , H04B10/155
CPC分类号： H04B10/50595 , G02F1/0123 , H04B10/505 , H04B10/5051 , H04B10/50575 , H04B10/508 , H04B10/5162 , H04B10/5165 , H04B2210/003
摘要： The present invention relates to an apparatus and method for automatically correcting a bias voltage for a carrier suppressed pulse generating modulator using the phase distribution of the output pulses, which automatically detects an optimal bias voltage for the carrier suppressed pulse generating modulator and stabilizes the bias voltage. In the bias voltage automatic correction method and apparatus of the present invention, an optimal bias voltage for the modulator is set to a bias voltage that is obtained when mean power of an optical signal output from the modulator is highest. The varying direction of the bias voltage is detected on the basis of the phase variations in the output optical signal of the modulator according to the bias voltage variations is detected, and the bias voltage is corrected oppositely to the varying direction of the bias voltage.
摘要翻译：本发明涉及一种使用输出脉冲的相位分布自动校正载波抑制脉冲发生调制器的偏置电压的装置和方法，其自动检测载波抑制脉冲发生调制器的最佳偏置电压并稳定偏置电压。在本发明的偏置电压自动校正方法和装置中，将调制器的最佳偏置电压设置为当从调制器输出的光信号的平均功率最高时获得的偏置电压。根据检测到的偏置电压变化，基于调制器的输出光信号的相位变化来检测偏置电压的变化方向，并且偏置电压与偏置电压的变化方向相反地校正。

3. 发明申请

US20050135818A1 Apparatus for controlling decision threshold voltage to optical receiver 失效
标题翻译：用于控制光接收机的判定阈值电压的装置
公开(公告)号：US20050135818A1
公开(公告)日：2005-06-23
申请号：US10815064
申请日：2004-03-31
申请人： Jyung Lee , Seung Myong , Joon Lee , Kwang Kim
发明人： Jyung Lee , Seung Myong , Joon Lee , Kwang Kim
IPC分类号： H04B10/06 , H04B10/158
CPC分类号： H04B10/695
摘要： Disclosed herein is an apparatus for controlling a decision threshold voltage to an optical receiver, which is capable of automatically controlling the decision threshold voltage to the optical receiver appropriately to signal level decision on the basis of a low-frequency band signal component of an output signal from the optical receiver. The apparatus is adapted to control the level of the decision threshold voltage to the optical receiver, which converts an input optical signal into an electrical signal. To this end, the apparatus comprises a voltage detector for branching off part of the output signal from the optical receiver and detecting a corresponding voltage, a differential comparator for comparing the voltage detected by the voltage detector with a reference voltage inputted thereto and outputting the resulting differential voltage, a low pass filter for filtering the differential voltage from the differential comparator at a predetermined low frequency band and supplying the resulting voltage as the threshold voltage to the optical receiver, and a voltage controller for controlling the reference voltage to the differential comparator on the basis of a differential voltage between the threshold voltage from the low pass filter and a predetermined voltage corresponding to a predetermined minimum bit error rate.
摘要翻译：本文公开了一种用于控制光接收机的判定阈值电压的装置，其能够基于输出信号的低频带信号分量自动控制对光接收器的判定阈值电压以适当地进行信号电平判定从光接收机。该装置适于控制光接收器的判定阈值电平的电平，光接收器将输入光信号转换为电信号。为此，该装置包括用于将来自光接收器的输出信号的一部分分支并检测相应电压的电压检测器，用于将由电压检测器检测到的电压与输入到其的参考电压进行比较的差分比较器，差分电压，低通滤波器，用于在预定的低频带对差分比较器的差分电压进行滤波，并将得到的电压作为阈值电压提供给光接收器;以及电压控制器，用于控制差分比较器的参考电压来自低通滤波器的阈值电压与对应于预定最小误码率的预定电压之间的差分电压的基础。

4. 发明申请

US20050117905A1 Optical transponder which can be reconfigured in accordance with various types of client networks 审中-公开
标题翻译：光转发器可以根据各种类型的客户端网络重新配置
公开(公告)号：US20050117905A1
公开(公告)日：2005-06-02
申请号：US10917095
申请日：2004-08-11
申请人： Joon Lee , Seung Myong , Yun Cho , Jyung Lee , Kwangjoon Kim , Yool Kwon , Youn Jang , Moo Chu
发明人： Joon Lee , Seung Myong , Yun Cho , Jyung Lee , Kwangjoon Kim , Yool Kwon , Youn Jang , Moo Chu
IPC分类号： H04B10/02 , H04J3/16 , H04J14/02
CPC分类号： H04J3/1611 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： An optical transponder which can be reconfigured in accordance with various types of client networks is provided. A client network interface transceiver includes a connector comprising a first connection terminal providing a unit transmitting and receiving a plurality of first clock signals, a plurality of second clock signals, and a plurality of data signals to and from the digital wrapper; a second connection terminal providing a unit transmitting and receiving a supervision/control signal and a CPU-related signal to and from the supervision/controlling unit; and a power source terminal providing a unit to which a power source is supplied. The client network interface transceiver multiplexes a client signal transmitted from the client network or demultiplexes a signal transmitted from an optical transmission network, outputs the client signal and the signal, and can be replaced through a front panel of the optical transponder line card in accordance with types of client networks.
摘要翻译：提供了可以根据各种类型的客户端网络重新配置的光学应答器。客户端网络接口收发器包括连接器，该连接器包括第一连接端子，该第一连接端子提供发送和接收来自数字包装器的多个第一时钟信号，多个第二时钟信号和多个数据信号的单元; 第二连接端子，提供向监控/控制单元发送和接收监视/控制信号和与CPU相关的信号的单元; 以及电源端子，其提供供电电源的单元。客户网络接口收发器多路复用从客户端网络发送的客户端信号或解复用从光传输网络发送的信号，输出客户端信号和信号，并且可以根据光接收机线卡的前面板更换客户端网络类型。

5. 发明申请

US20050135805A1 Optical transponder and method for detecting and treating errors in optical channel sublayer of the optical transponder 有权
标题翻译：用于检测和处理光学应答器的光通道子层中的错误的光学应答器和方法
公开(公告)号：US20050135805A1
公开(公告)日：2005-06-23
申请号：US10903053
申请日：2004-07-30
申请人： Yun Cho , Joon Lee , Seung Myong , Jyung Lee , Kwangjoon Kim
发明人： Yun Cho , Joon Lee , Seung Myong , Jyung Lee , Kwangjoon Kim
IPC分类号： H04L12/24 , H04B10/02 , H04B10/08
CPC分类号： H04B10/00
摘要： Provided are an optical transponder that processes a G.709 frame that includes an overhead for operation, administration, and maintenance of an optical channel and an overhead for forward error correction, and a method of detecting and treating errors in optical-channel sublayers of the same. The method includes detecting an error signal or a maintenance signal from a G.709 frame that includes an overhead for operation, administration, and maintenance of an optical channel and an overhead for forward error correction; treating errors in a predetermined layer of a plurality of layers that requires error treatment when the error signal or the maintenance signal is detected or canceled; and investigating a reason for the errors in the predetermined layer.
摘要翻译：提供了一种处理包括用于光信道的操作，管理和维护以及用于前向纠错的开销的开销的G.709帧的光学应答器，以及用于检测和处理光信道子层中的错误的方法相同。该方法包括检测来自G.709帧的误差信号或维护信号，该G.709帧包括用于操作，管理和维护光信道的开销和用于前向纠错的开销; 当检测或取消误差信号或维护信号时，处理需要错误处理的多个层的预定层中的错误; 并调查预定层错误的原因。

6. 发明申请

US20060133824A1 Apparatus for stabilizing wavelength of optical source for optical communications 审中-公开
标题翻译：用于稳定光通信光源波长的装置
公开(公告)号：US20060133824A1
公开(公告)日：2006-06-22
申请号：US11264384
申请日：2005-11-02
申请人： Seung Myong , Youn Jang , Kwang Kim , Hyun Lee
发明人： Seung Myong , Youn Jang , Kwang Kim , Hyun Lee
IPC分类号： H04B10/04
CPC分类号： H04B10/572
摘要： Provided is an apparatus for stabilizing a wavelength for optical communications which includes a digital control circuit unit and an analog control circuit unit to stabilize a wavelength that may be shifted at the time of driving an optical source for optical communications. The wavelength can be precisely controlled according to a modulation format using the optical source for optical communications, and thus performance can be stabilized.
摘要翻译：提供了一种用于稳定光通信的波长的装置，其包括数字控制电路单元和模拟控制电路单元，以稳定在驱动用于光通信的光源时可能偏移的波长。可以使用光通信用光源根据调制格式精确地控制波长，从而可以稳定性能。

7. 发明申请

US20070134961A1 Apparatus and method for interfacing XFP optical transceiver with 300-pin MSA optical transponder 审中-公开
标题翻译：用于将XFP光收发器与300针MSA光发送应答接口连接的装置和方法
公开(公告)号：US20070134961A1
公开(公告)日：2007-06-14
申请号：US11635695
申请日：2006-12-07
申请人： Seung Myong , Jyung Chan Lee , Jong Hyun Lee
发明人： Seung Myong , Jyung Chan Lee , Jong Hyun Lee
IPC分类号： H01R13/62
CPC分类号： H04L7/0008 , H04J3/0685
摘要： Provided are an apparatus and a method for interfacing a 10 Gbps small form factor pluggable (XFP) optical transceiver with a 300-pin multi-source agreement (MSA)_optical transceiver. The apparatus includes: a direct interface providing direct interfacing paths through which signals that can be directly interfaced with one another between the XFP optical transceiver and the 300-pin MSA optical transponder; and a processor converting clock signals and data between the XFP optical transceiver and the 300-pin MSA optical transponder so that formats of the clock signals and the data coincide with one another.
摘要翻译：提供了一种用于将10 Gbps小型可插拔（XFP）光收发器与300引脚多源协议（MSA）_光学收发器进行接口的设备和方法。该装置包括：提供直接接口路径的直接接口，可在XFP光收发器和300-pin MSA光转发器之间彼此直接接口的信号通过该路径; 以及处理器在XFP光收发器和300针MSA光转发器之间转换时钟信号和数据，使得时钟信号和数据的格式彼此一致。

8. 发明申请

US20070134005A1 Apparatus and method for generating return-to-zero signal 失效
标题翻译：用于产生归零信号的装置和方法
公开(公告)号：US20070134005A1
公开(公告)日：2007-06-14
申请号：US11635712
申请日：2006-12-07
申请人： Seung Myong , Hyung Kim , Jong Lee
发明人： Seung Myong , Hyung Kim , Jong Lee
IPC分类号： H04B10/04
CPC分类号： H04B10/5051 , H04B10/505 , H04B10/508
摘要： Provided are an apparatus and a method for generating a return-to-zero (RZ) signal, including: a first modulator receiving a first signal having a predetermined frequency to modulate, compensate for and output a first laser beam; a second modulator receiving a second signal complementary to the first signal to modulate, compensate for, and output a second laser beam; a mixer mixing signals output from the first and second modulators to output a third signal; and a third modulator modulating the third signal into an RZ signal and outputting the RZ signal.
摘要翻译：提供了一种用于产生归零（RZ）信号的装置和方法，包括：第一调制器，接收具有预定频率的第一信号以调制，补偿和输出第一激光束; 接收与所述第一信号互补的第二信号以调制，补偿和输出第二激光束的第二调制器; 混合从第一和第二调制器输出的信号以输出第三信号; 以及将第三信号调制成RZ信号并输出RZ信号的第三调制器。

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