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1. 发明授权

US08649691B2 Apparatus and method for detecting optical signals 失效
标题翻译：用于检测光信号的装置和方法
公开(公告)号：US08649691B2
公开(公告)日：2014-02-11
申请号：US12687246
申请日：2010-01-14
申请人： Eui-suk Jung , Dong-min Seol , Byoung-whi Kim , Sang-soo Lee , Seung-hyun Cho
发明人： Eui-suk Jung , Dong-min Seol , Byoung-whi Kim , Sang-soo Lee , Seung-hyun Cho
IPC分类号： H04B10/06
CPC分类号： H04B10/695 , H04J14/0282 , H04L25/062 , H04L27/06
摘要： Disclosed are an apparatus and method for detecting optical signals. The optical signal detection apparatus includes: a signal receiver to convert a received optical signal into an electrical signal; a threshold decision unit to establish a mathematical model based on the electrical signal and to decide an optimized threshold value based on the mathematical model; and a signal detector to detect the electrical signal based on the optimized threshold value. Hence, since threshold values optimized adaptively according to received signals are used, a bit error rate may be lowered and accordingly detection performance may be improved.
摘要翻译：公开了一种用于检测光信号的装置和方法。光信号检测装置包括：信号接收器，用于将接收到的光信号转换为电信号; 阈值决定单元，用于基于所述电信号建立数学模型，并且基于所述数学模型来确定优化的阈值; 以及信号检测器，用于基于优化的阈值检测电信号。因此，由于使用根据接收到的信号自适应地优化阈值，所以可能降低误码率，从而可以提高检测性能。

2. 发明授权

US08548329B2 Apparatus and method for relaying in gigabit passive optical network 有权
标题翻译：用于在千兆无源光网络中进行中继的装置和方法
公开(公告)号：US08548329B2
公开(公告)日：2013-10-01
申请号：US12817279
申请日：2010-06-17
申请人： Kwang Ok Kim , Kyeong Hwan Doo , Sang Soo Lee
发明人： Kwang Ok Kim , Kyeong Hwan Doo , Sang Soo Lee
IPC分类号： H04J14/00
CPC分类号： H04J14/0282 , H04J3/0685 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252
摘要： A relaying method of an optical signal of a hybrid relaying apparatus in a gigabit passive optical element includes: selecting and receiving any one of a first serial electrical signal corresponding to a downlink wavelength division multiplexing-passive optical line terminal (WDM-PON OLT) optical signal and a second serial electrical signal corresponding to a downlink gigabit passive optical network optical line terminal (GPON OLT) optical signal; modulating the downlink serial electrical signal to a downlink GPON transmission convergence (GTC) frame; extracting control information for uplink transmission from the downlink GTC frame; converting the downlink GTC frame into the downlink serial electrical signal; and converting the converted serial electrical signal into an optical signal and transmitting the converted optical signal in a GPON OLT optical transceiver.
摘要翻译：千兆无源光学元件中的混合中继装置的光信号的中继方法包括：选择和接收与下行波分复用无源光线路终端（WDM-PON OLT）光学对应的第一串行电信号信号和对应于下行千兆无源光网络光线路终端（GPON OLT）光信号的第二串行电信号; 将下行链路串行电信号调制到下行链路GPON传输收敛（GTC）帧; 从下行链路GTC帧提取用于上行链路传输的控制信息; 将下行链路GTC帧转换为下行链路串行电信号; 并将转换的串行电信号转换为光信号，并在GPON OLT光收发器中发送转换的光信号。

3. 发明授权

US08542425B2 Wavelength tunable light source 有权
标题翻译：波长可调光源
公开(公告)号：US08542425B2
公开(公告)日：2013-09-24
申请号：US12971233
申请日：2010-12-17
申请人： Seung-Hyun Cho , Jong Hoon Lee , Eun Gu Lee , Jie Hyun Lee , Han-Hyub Lee , Eui Suk Jung , Sang Soo Lee
发明人： Seung-Hyun Cho , Jong Hoon Lee , Eun Gu Lee , Jie Hyun Lee , Han-Hyub Lee , Eui Suk Jung , Sang Soo Lee
IPC分类号： G02F1/03
CPC分类号： G02F1/17 , G02B6/4215 , G02F1/133608 , H01S5/0265 , H01S5/141
摘要： A wavelength tunable light source includes: an optical gain medium generating light; a wavelength tunable filter positioned on a optical path and transmitting or reflecting only a predetermined wavelength generated from and injected into the optical gain medium; a first housing where the optical gain medium and the wavelength tunable filter are mounted; and an optical fiber block providing the optical wave having the predetermined wavelength come from the wavelength tunable filter, wherein the wavelength tunable filter comprised of a dielectric thin-film filter formed by alternately stacking a first dielectric thin film layer and a second dielectric thin film layer having different refractive index.
摘要翻译：波长可调光源包括：产生光的光学增益介质; 位于光路上的波长可调滤波器，仅传输或反射从光增益介质产生和注入的预定波长; 安装光学增益介质和波长可调滤波器的第一壳体; 提供具有预定波长的光波长的光纤块来自波长可调谐滤波器，其中波长可调滤波器由通过交替地堆叠第一介电薄膜层和第二介电薄膜层而形成的电介质薄膜滤波器组成具有不同的折射率。

4. 发明申请

US20120194252A1 METHOD OF SHIFTING AUTO-ZERO VOLTAGE IN ANALOG COMPARATORS 审中-公开
标题翻译：模拟比较器中自动归零电压的方法
公开(公告)号：US20120194252A1
公开(公告)日：2012-08-02
申请号：US13018202
申请日：2011-01-31
申请人： Jeff RYSINSKI , Sang-Soo LEE
发明人： Jeff RYSINSKI , Sang-Soo LEE
IPC分类号： H03L5/00 , H03K3/01
CPC分类号： H03F3/45183 , H03F2203/45534 , H03F2203/45544 , H03F2203/45674 , H03K5/2481
摘要： Aspects of the invention provide, inter alia, techniques for shifting auto-zero voltage in analog comparators. An embodiment of the invention may include at least one diode configured transistor to increase a drain voltage of at least one NMOS load transistor. A first switch and a second switch may be implemented to increase a voltage at a gate of a first PMOS input transistor and a voltage at a gate of a second PMOS input transistor when the first switch and the second switch are closed.
摘要翻译：本发明的各方面尤其提供了用于在模拟比较器中移动自动归零电压的技术。本发明的实施例可以包括至少一个二极管配置的晶体管，以增加至少一个NMOS负载晶体管的漏极电压。当第一开关和第二开关闭合时，可以实现第一开关和第二开关以增加第一PMOS输入晶体管的栅极处的电压和第二PMOS输入晶体管的栅极处的电压。

5. 发明授权

US08224190B2 Channel assignment method and apparatus for wavelength-division-multiplexed transmission system 有权
标题翻译：用于波分复用传输系统的信道分配方法和装置
公开(公告)号：US08224190B2
公开(公告)日：2012-07-17
申请号：US12618579
申请日：2009-11-13
申请人： Hwan-seok Chung , Sun-hyok Chang , Sang-soo Lee , Kwang-joon Kim
发明人： Hwan-seok Chung , Sun-hyok Chang , Sang-soo Lee , Kwang-joon Kim
IPC分类号： H04B10/04
CPC分类号： H04B10/2557 , H04J14/0224 , H04J14/0257 , H04J14/026 , H04J14/0279
摘要： Provided is a channel assignment method in a wavelength-division-multiplexed transmission system. The channel assignment method includes obtaining information about signal modulation schemes from a plurality of optical transmitters, and assigning channels to the respective optical transmitters in consideration of the obtained information about the signal modulation schemes. Accordingly, in transmission of channels of different modulation formats, cross phase modulation is minimized, thereby reducing inter-channel interference.
摘要翻译：提供了一种波分复用传输系统中的信道分配方法。信道分配方法包括从多个光发射机获取关于信号调制方案的信息，并且考虑所获得的关于信号调制方案的信息，向各个光发射机分配信道。因此，在传输不同调制格式的信道时，交叉相位调制被最小化，从而减少信道间干扰。

6. 发明申请

US20120169909A1 IMAGE PROCESSING SYSTEM WITH ON-CHIP TEST MODE FOR COLUMN ADCS 有权
标题翻译：具有片上测试模式的图像处理系统
公开(公告)号：US20120169909A1
公开(公告)日：2012-07-05
申请号：US12981970
申请日：2010-12-30
申请人： Jeff RYSINSKI , Yibing Michelle Wang , Sang-Soo Lee
发明人： Jeff RYSINSKI , Yibing Michelle Wang , Sang-Soo Lee
IPC分类号： H04N5/335
CPC分类号： H04N5/374 , H03M1/1033 , H03M1/123 , H03M1/56 , H04N5/378 , H04N17/002
摘要： An image processing system includes a pixel array including a plurality of regular pixel columns and at least one test pixel column, a plurality of column analog-to-digital converters (ADCs) configured to correspond to the regular pixel columns and convert analog input signals into digital signals, and a switching block configured to provide output signals of the regular pixel columns to input ends of the corresponding column ADCs in a normal mode, and provide in common an output signal of the test pixel column to the input ends of the column ADCs in a test mode, wherein the test pixel column generates signals having a minute voltage different from one row to another row.
摘要翻译：图像处理系统包括：像素阵列，包括多个规则像素列和至少一个测试像素列;多个列模数转换器（ADC），被配置为对应于规则像素列并将模拟输入信号转换成数字信号和切换块，被配置为提供常规像素列的输出信号以在正常模式下输入相应的列ADC的端部，并且共同提供测试像素列的输出信号到列ADC的输入端在测试模式中，其中测试像素列产生具有不同于一行至另一行的微小电压的信号。

7. 发明申请

US20120163802A1 WDM-TDM PON REMOTE TERMINAL AND WDM-TDM PON LINK PROTECTION SYSTEM 有权
标题翻译： WDM-TDM PON远程终端和WDM-TDM PON链路保护系统
公开(公告)号：US20120163802A1
公开(公告)日：2012-06-28
申请号：US13334147
申请日：2011-12-22
申请人： Kwang-Ok KIM , Eun-Gu LEE , Eui-Suk JUNG , Sang-Soo LEE , Tae-Whan YOO
发明人： Kwang-Ok KIM , Eun-Gu LEE , Eui-Suk JUNG , Sang-Soo LEE , Tae-Whan YOO
IPC分类号： H04B10/08
CPC分类号： H04B10/032 , H04B10/07 , H04J14/0223 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0265 , H04J14/0282 , H04J14/0291
摘要： A wavelength division multiplexing (WDM)-time division multiplexing (TDM) passive optical network (PON) remote terminal (RT) is provided. The wavelength division multiplexing (WDM)-time division multiplexing (TDM) passive optical network (PON) remote terminal (RT), includes: a WDM-TDM converter configured to convert a WDM downstream optical signal that is received from a central office terminal (COT) into a TDM downstream optical signal or to convert a TDM upstream optical signal that is received from an optical network terminal (ONT) into a WDM upstream optical signal; an error detector configured to detect an error; and a controller configured to, in response to an error being detected, transmit the WDM upstream optical signal to the COT via a first standby link or transmit the TDM downstream optical signal to the ONT via a second standby link.
摘要翻译：提供了波分复用（WDM） - 时分复用（TDM）无源光网络（PON）远程终端（RT）。波分复用（WDM）时分复用（TDM）无源光网络（PON）远程终端（RT）包括：WDM-TDM转换器，被配置为转换从中心局终端接收的WDM下行光信号 COT）转换成TDM下行光信号或将从光网络终端（ONT）接收的TDM上行光信号转换为WDM上行光信号; 错误检测器，被配置为检测错误; 以及控制器，被配置为响应于检测到的错误，经由第一备用链路将所述WDM上行光信号发送到所述COT，或经由第二备用链路将所述TDM下行光信号发送到所述ONT。

8. 发明申请

US20120155876A1 SEED LIGHT MODULE FOR WAVELENGTH DIVISION MULTIPLEXING-PASSIVE OPTICAL NETWORK AND METHOD FOR DRIVING THE SAME 审中-公开
标题翻译：用于波长部分的多光子模块多路复用光网络及其驱动方法
公开(公告)号：US20120155876A1
公开(公告)日：2012-06-21
申请号：US13333119
申请日：2011-12-21
申请人： Seung-Hyun Cho , Han-Hyub Lee , Jie-Hyun Lee , Jong-Hoon Lee , Eun-Gu Lee , Eui-Suk Jung , Sang-Soo Lee
发明人： Seung-Hyun Cho , Han-Hyub Lee , Jie-Hyun Lee , Jong-Hoon Lee , Eun-Gu Lee , Eui-Suk Jung , Sang-Soo Lee
IPC分类号： H04J14/02 , H04J14/06
CPC分类号： H04J14/0282 , H04B10/506
摘要： A seed light module for a WDM-PON system is provided. The seed light module includes a reflector configured to reflect a part of seed light that is generated from a light source generator, and an optical attenuator configured to attenuate the intensity of the reflected seed light and provide the attenuated seed light, which corresponds to a signal generated by attenuating the intensity of the reflected seed light, to the light source generator.
摘要翻译：提供了一种用于WDM-PON系统的种子光模块。种子光模块包括被配置为反射从光源发生器产生的种子光的一部分的反射器，以及光衰减器，被配置为衰减反射种子光的强度并提供对应于信号的衰减种子光通过将反射的种子光的强度衰减而产生到光源发生器。

9. 发明申请

US20120155873A1 POWER SAVING APPARATUS AND METHOD FOR OPTICAL LINE TERMINAL AND OPTICAL NETWORK UNIT 审中-公开
标题翻译：光线路终端和光网络单元节能装置及方法
公开(公告)号：US20120155873A1
公开(公告)日：2012-06-21
申请号：US13307105
申请日：2011-11-30
申请人： Han-Hyub LEE , Sang-Soo Lee
发明人： Han-Hyub LEE , Sang-Soo Lee
IPC分类号： H04B10/20
CPC分类号： H04Q11/0067 , H04B10/272 , H04Q2011/0081
摘要： A power saving apparatus for an optical line terminal (OLT) and an optical network unit (ONU) is provided. The power saving apparatus includes a determination unit configured to determine whether a data traffic is generated between the ONU and a customer premises equipment (CPE), and a control unit configured to perform control such that each of the OLT and the ONU are converted to a power saving mode if a result of the determination is that a data traffic is not generated.
摘要翻译：提供了一种用于光线路终端（OLT）和光网络单元（ONU）的节电装置。节电装置包括：确定单元，被配置为确定在ONU和客户端设备（CPE）之间是否生成数据业务;以及控制单元，被配置为执行控制，使得每个OLT和ONU被转换为如果确定的结果是没有生成数据业务，则省电模式。

10. 发明授权

US08155521B2 Multi-degree cross-connector system, operating method and optical communication network using the same 有权
标题翻译：多度交叉连接器系统，操作方法和光通信网使用相同
公开(公告)号：US08155521B2
公开(公告)日：2012-04-10
申请号：US12514977
申请日：2006-12-06
申请人： Hwan-Seok Chung , Kwangloon Kim , Sang-Soo Lee , Sun-Hyok Chang
发明人： Hwan-Seok Chung , Kwangloon Kim , Sang-Soo Lee , Sun-Hyok Chang
IPC分类号： H04J14/00
CPC分类号： H04Q11/0005 , H04J14/0204 , H04J14/0212 , H04J14/0213 , H04J14/0217 , H04J14/0219 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0039 , H04Q2011/0052
摘要： Provided are a network node which has a wavelength switching cross-connection function and can thus interconnect paths of a wavelength-division-multiplexed optical signal and convert wavelengths, and an operating method of the network node. Accordingly, it is possible to provide a multi-degree cross-connection system having a simple structure at lower cost by allowing transmission of optical signals supposed not to be added/dropped at a network node without converting them into electrical signals and performing O/E conversion or E/O conversion only on optical signals supposed to be added/dropped at a network node. In addition, it is possible to increase the expandability of networks by regenerating degraded signals and which can effectively utilize bandwidths by grooming low-speed electrical digital hierarchy signals and transmitting them as high-speed optical signals. Moreover, it is possible to increase the availability of network resources by performing wavelength conversion without the need of additional wavelength converters. Furthermore, it is possible to prevent multiplexed optical signals from being degraded by filtering even when the multiplexed optical signals are not demultiplexed into wavelengths. Still furthermore, it is possible to perform a multicast operation on input wavelengths.
摘要翻译：提供了具有波长切换交叉连接功能并且因此可以互连波分复用光信号的路径并转换波长的网络节点以及网络节点的操作方法。因此，可以通过允许在网络节点处不被添加/丢弃的光信号的传输而不将它们转换成电信号并执行O / E来提供具有简单结构的多级交叉连接系统，其具有较低的成本转换或E / O转换仅在光网络节点上被添加/删除的信号上。此外，可以通过再生劣化信号来增加网络的可扩展性，并且可以通过梳理低速电子数字分层信号并将其作为高速光信号传输来有效地利用带宽。此外，可以通过执行波长转换来增加网络资源的可用性，而不需要额外的波长转换器。此外，即使当复用的光信号未被解复用为波长时，也可以防止多路复用的光信号被滤波劣化。此外，可以对输入波长执行多播操作。

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