公开(公告)号：US20120177371A1

公开(公告)日：2012-07-12

申请号：US13353204

申请日：2012-01-18

申请人： Change-Hee Lee ,  Sang-Mook Lee ,  Sil-Gu Mun

发明人： Change-Hee Lee ,  Sang-Mook Lee ,  Sil-Gu Mun

IPC分类号： H04J14/02 ,  H04B10/20

CPC分类号： H04J14/0246 ,  H04J14/0226 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0257 ,  H04J14/0282

摘要： The present invention discloses a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method.In a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method according to the present invention, only one WDM-PON system can provides services for a plurality of subscribers who is distributed in a wide range of area through multiple starring, by setting one or more band for transmitting up-stream signals as an up-stream basic band and one or more band for transmitting down-stream signals as a down-stream basic band, respectively, and by dividing each of the up-stream basic band and the down-stream basic band into a plurality of wavelength sub-bands and assigning the divided sub-bands to different areas using a wavelength division multiplexer/de-multiplexer which splits a band into two or more sub-bands.

摘要翻译： 本发明公开了一种使用波长分配方法的多星波分复用无源光网络系统。 在使用根据本发明的波长分配方法的多星波分复用无源光网络系统中，只有一个WDM-PON系统可以通过多重主播向广泛范围内分布的多个用户提供服务，通过 设置一个或多个频带，用于发送上行信号作为上行基本频带和用于发送下行流信号的一个或多个频带作为下行基本频带，并且通过划分每个上行基本频带 和下游基本频带分成多个波长子带，并使用将频带分成两个或更多个子频带的波分多路复用器/去多路复用器将分割的子带分配给不同的区域。

公开(公告)号：US08687972B2

公开(公告)日：2014-04-01

申请号：US13353204

申请日：2012-01-18

申请人： Chang-Hee Lee ,  Sang-Mook Lee ,  Sil-Gu Mun

发明人： Chang-Hee Lee ,  Sang-Mook Lee ,  Sil-Gu Mun

IPC分类号： H04B10/00

CPC分类号： H04J14/0246 ,  H04J14/0226 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0257 ,  H04J14/0282

摘要： The present invention discloses a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method.In a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method according to the present invention, only one WDM-PON system can provides services for a plurality of subscribers who is distributed in a wide range of area through multiple starring, by setting one or more band for transmitting up-stream signals as an up-stream basic band and one or more band for transmitting down-stream signals as a down-stream basic band, respectively, and by dividing each of the up-stream basic band and the down-stream basic band into a plurality of wavelength sub-bands and assigning the divided sub-bands to different areas using a wavelength division multiplexer/de-multiplexer which splits a band into two or more sub-bands.

摘要翻译： 本发明公开了一种使用波长分配方法的多星波分复用无源光网络系统。 在使用根据本发明的波长分配方法的多星波分复用无源光网络系统中，只有一个WDM-PON系统可以通过多重主播向广泛范围内分布的多个用户提供服务，通过 设置一个或多个频带，用于发送上行信号作为上行基本频带和用于发送下行流信号的一个或多个频带作为下行基本频带，并且通过划分每个上行基本频带 和下游基本频带分成多个波长子带，并使用将频带分成两个或更多个子频带的波分多路复用器/去多路复用器将分割的子带分配给不同的区域。

公开(公告)号：US20100046945A1

公开(公告)日：2010-02-25

申请号：US12087034

申请日：2006-12-05

申请人： Chang-Hee Lee ,  Sang-Mook Lee ,  Sil-Gu Mun

发明人： Chang-Hee Lee ,  Sang-Mook Lee ,  Sil-Gu Mun

IPC分类号： H04J14/00

CPC分类号： H04J14/0246 ,  H04J14/0226 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0257 ,  H04J14/0282

摘要： The present invention discloses a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method. In a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method according to the present invention, only one WDM-PON system can provide services for a plurality of subscribers who is distributed in a wide range of area through multiple starring, by setting one or more band for transmitting up-stream signals as an up-stream basic band and one or more band for transmitting down-stream signals as a down stream basic band, respectively, and by dividing each of the up-stream basic band and the down stream basic band into a plurality of wavelength sub-bands and assigning the divided sub-bands to different areas using a wavelength division multiplexer/de-multiplexer which splits a band into two or more sub-bands.

摘要翻译： 本发明公开了一种使用波长分配方法的多星波分复用无源光网络系统。 在使用根据本发明的波长分配方法的多星波分复用无源光网络系统中，只有一个WDM-PON系统可以通过多重主播向广泛范围的多个用户提供服务， 设置一个或多个频带，用于发送上行信号作为上行基本频带，以及一个或多个频带，用于发送下行流信号作为下行基本频带，并通过划分每个上行基本频带和 下行基本频带转换为多个波长子带，并使用将频带分割成两个或更多个子带的波分复用器/去多路复用器将分割的子带分配给不同的区域。

公开(公告)号：US08818200B2

公开(公告)日：2014-08-26

申请号：US12087034

申请日：2006-12-05

申请人： Chang-Hee Lee ,  Sang-Mook Lee ,  Sil-Gu Mun

发明人： Chang-Hee Lee ,  Sang-Mook Lee ,  Sil-Gu Mun

IPC分类号： H04J14/02 ,  H04B10/00

CPC分类号： H04J14/0246 ,  H04J14/0226 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0257 ,  H04J14/0282

摘要： The present invention discloses a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method. In a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method according to the present invention, only one WDM-PON system can provide services for a plurality of subscribers who is distributed in a wide range of area through multiple starring, by setting one or more band for transmitting up-stream signals as an up-stream basic band and one or more band for transmitting down-stream signals as a down stream basic band, respectively, and by dividing each of the up-stream basic band and the down stream basic band into a plurality of wavelength sub-bands and assigning the divided sub-bands to different areas using a wavelength division multiplexer/de-multiplexer which splits a band into two or more sub-bands.

摘要翻译： 本发明公开了一种使用波长分配方法的多星波分复用无源光网络系统。 在使用根据本发明的波长分配方法的多星波分复用无源光网络系统中，只有一个WDM-PON系统可以通过多重主播向广泛范围的多个用户提供服务， 设置一个或多个频带，用于发送上行信号作为上行基本频带，以及一个或多个频带，用于发送下行流信号作为下行基本频带，并通过划分每个上行基本频带和 下行基本频带转换为多个波长子带，并使用将频带分割成两个或更多个子带的波分复用器/去多路复用器将分割的子带分配给不同的区域。

公开(公告)号：US09106335B2

公开(公告)日：2015-08-11

申请号：US13538482

申请日：2012-06-29

申请人： Sil-Gu Mun ,  Eun-Gu Lee ,  Dong-Min Seol ,  Eui-Suk Jung ,  Sang-Soo Lee ,  Jeong-Sik Cho

发明人： Sil-Gu Mun ,  Eun-Gu Lee ,  Dong-Min Seol ,  Eui-Suk Jung ,  Sang-Soo Lee ,  Jeong-Sik Cho

IPC分类号： H04J14/02 ,  G01J3/51 ,  H04B10/079

CPC分类号： H04B10/07957 ,  G01J3/513 ,  H04J14/0258 ,  H04J14/0282

摘要： Provided are an automatic wavelength recognition apparatus and method. The automatic wavelength recognition apparatus includes: a division unit receiving a single optical signal and dividing the received optical signal into a plurality of optical signals; a plurality of filter units filtering the optical signals and having different and wavelength-dependent pass characteristics; a plurality of detection units detecting the filtered optical signals and measuring intensities of the detected optical signals; at least one comparison unit comparing outputs of any two of the detection units; and a wavelength determination unit receiving an output of the at least one comparison unit and determining a wavelength of the above single optical signal using a pre-stored look-up table.

摘要翻译： 提供了一种自动波长识别装置和方法。 自动波长识别装置包括：分割单元，接收单个光信号，并将接收的光信号分成多个光信号; 多个滤波器单元对光信号进行滤波并具有不同的和波长相关的通过特性; 多个检测单元，检测经滤波的光信号并测量检测到的光信号的强度; 至少一个比较单元，比较任何两个检测单元的输出; 以及波长确定单元，接收所述至少一个比较单元的输出，并且使用预先存储的查找表来确定上述单个光信号的波长。

公开(公告)号：US08180221B2

公开(公告)日：2012-05-15

申请号：US11991207

申请日：2006-08-29

申请人： Chang-Hee Lee ,  Sil-Gu Mun ,  Kun-Youl Park

发明人： Chang-Hee Lee ,  Sil-Gu Mun ,  Kun-Youl Park

IPC分类号： H04J14/02

CPC分类号： H04J14/0226 ,  H04B10/506 ,  H04B10/572 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

摘要： The present invention relates to a wavelength-division multiplexed passive optical network (WDM-PON) for reducing degradation in noise characteristic of a wavelength-locked Fabry-Perot Laser Diode (F-P LD). A WDM-PON for reducing degradation in a noise characteristic of a wavelength-locked F-P LD in accordance with the present invention comprises a central office (CO); a remote node (RN) being connected to the CO by a single mode fiber; and one or more optical network terminations (ONTs) being connected to the RN by one or more single mode fibers, respectively, wherein the CO comprises: a broadband light source (BLS) for generating light to be injected; a first wavelength-division multiplexing (WDM) filter for filtering for the injected light generated from the BLS and having a bandwidth wider than a bandwidth of the injected light in order to minimize a filtering effect; and one or more optical transceiver having one or more F-P LDs into which light being filtered by the first WDM filter is injected; and wherein the RN filters the injected light generated from the BLS and injects the filtered light into the one or more ONTs; and wherein the RN comprises a second WDM filter having a bandwidth wider than a bandwidth of the injected light in order to minimize a filtering effect.

摘要翻译： 本发明涉及一种用于减少波长锁定法布里 - 珀罗激光二极管（F-P LD）的噪声特性降低的波分复用无源光网络（WDM-PON）。 根据本发明的用于减少波长锁定的F-P LD的噪声特性降低的WDM-PON包括中心局（CO）; 远程节点（RN）通过单模光纤连接到CO; 并且一个或多个光网络终端（ONT）分别通过一个或多个单模光纤连接到RN，其中CO包括：用于产生要注入的光的宽带光源（BLS）; 第一波分复用（WDM）滤波器，用于对从BLS产生的注入的光进行滤波，并且具有比注入的光的带宽宽的带宽，以便使滤波效果最小化; 以及一个或多个光收发器，其具有一个或多个F-P LD，其中被第一WDM滤波器滤波的光被注入; 并且其中所述RN对从所述BLS产生的注入的光进行滤波，并且将所述经滤波的光注入到所述一个或多个ONT中; 并且其中所述RN包括具有比所述注入的光的带宽更宽的带宽的第二WDM滤波器，以便使滤波效果最小化。

公开(公告)号：US20110255860A1

公开(公告)日：2011-10-20

申请号：US13123211

申请日：2009-10-09

申请人： Chang-Hee Lee ,  Jong-Hoon Lee ,  Ki-Man Choi ,  Sil-Gu Mun ,  Jung-Hyung Moon ,  Jung-eun Moon ,  Hoon-Keun Lee ,  Joon-Young Kim ,  Sang-Min Oh

发明人： Chang-Hee Lee ,  Jong-Hoon Lee ,  Ki-Man Choi ,  Sil-Gu Mun ,  Jung-Hyung Moon ,  Jung-eun Moon ,  Hoon-Keun Lee ,  Joon-Young Kim ,  Sang-Min Oh

IPC分类号： H04B10/08 ,  H04B17/00

CPC分类号： H04B10/0771 ,  G01M11/3136 ,  H04B10/071

摘要： The present invention discloses a fault localization method and a fault localization apparatus in a Passive Optical Network (PON) and a passive optical network having the same.A fault localization method in PON according to the present invention comprises a) configuring an optical path of a remote node (RN) selectively by electric power being fed temporarily only when necessary, while the PON is regularly being operated as a passive network; and b) detecting a fault occurring on the selectively configured optical path by inserting a monitoring signal of an OTDR unit, which is positioned in a central office (CO), through the selectively configured optical path.

摘要翻译： 本发明公开了一种无源光网络（PON）中的故障定位方法和故障定位装置以及具有该故障定位方法的无源光网络。 根据本发明的PON中的故障定位方法包括：a）通过仅在需要时临时馈送的电力来选择性地配置远程节点（RN）的光路，同时PON被定期地作为被动网络操作; 以及b）通过选择性地配置的光路插入位于中心局（CO）中的OTDR单元的监视信号来检测选择性配置的光路上发生的故障。

公开(公告)号：US20100290782A1

公开(公告)日：2010-11-18

申请号：US12681551

申请日：2007-10-10

申请人： Chang-Hee Lee ,  Jong-Hoon Lee ,  Ki-Man Choi ,  Sil-Gu Mun ,  Jung-Hyung Moon ,  Hoon-Keun Lee

发明人： Chang-Hee Lee ,  Jong-Hoon Lee ,  Ki-Man Choi ,  Sil-Gu Mun ,  Jung-Hyung Moon ,  Hoon-Keun Lee

IPC分类号： H04J14/00 ,  H04L12/28

CPC分类号： H04B10/807 ,  H04B10/272 ,  H04J14/0282 ,  H04Q11/0005 ,  H04Q11/0067 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0069 ,  H04Q2011/0079 ,  H04Q2011/0081

摘要： The present invention discloses a remote node (RN) configuration for providing an enhanced service in a passive optical network and a passive optical network (PON) having the same. In an RN configuration for providing a new service in a PON according to the present invention, it is possible to configure the RN remotely by instantaneous powering from a remote site only when necessary, while the RN being operated as a PON at ordinary times. More specifically, an RN configuration for providing a new service in a PON according to the present invention includes a power generation block capable of providing energy necessary for activating the RN by instantaneously supplied power from the remote site. Further, an RN according to the present invention further includes either one or both of a control agent block capable of controlling and managing optical paths of the RN by using power generated from the power generation block; and a reconfigurable switching block capable of configuring and switching the optical path of the RN through the power being provided from the power generation block and a control by the control agent block.

摘要翻译： 本发明公开了一种用于在无源光网络中提供增强业务的远程节点（RN）配置和具有该远程节点（RN）的无源光网络（PON）。 在根据本发明的用于在PON中提供新服务的RN配置中，可以仅在必要时从远程站点通过即时供电来远程配置RN，而RN在正常时间作为PON操作。 更具体地，根据本发明的用于在PON中提供新业务的RN配置包括能够提供通过从远程站点的即时提供的功率来激活RN所需的能量的发电块。 此外，根据本发明的RN还包括能够通过使用从发电块产生的电力来控制和管理RN的光路的控制代理块中的一个或两个; 以及能够通过从发电块提供的功率和由控制代理块的控制来配置和切换RN的光路的可重构切换块。

公开(公告)号：US20120051749A1

公开(公告)日：2012-03-01

申请号：US13288289

申请日：2011-11-03

申请人： Chang-Hee Lee ,  Ki-Man Choi ,  Sil-Gu Mun ,  Jung-Hyung Moon

发明人： Chang-Hee Lee ,  Ki-Man Choi ,  Sil-Gu Mun ,  Jung-Hyung Moon

IPC分类号： H04J14/02

CPC分类号： H04L12/66

摘要： The present invention discloses a wavelength-division multiplexing passive optical network (WDM-PON) capable of high-bandwidth transmission for optical signals by using modulation format having high spectral efficiency. The WDM-PON according to the present invention provides a larger capacity and higher bandwidth transmission economically (at lower costs) by using a modulation format where spectral efficiency (a transmission bit number per a unit band width) is high, while using a low noise part of a light source.

摘要翻译： 本发明公开了通过使用具有高频谱效率的调制格式，能够对光信号进行高带宽传输的波分复用无源光网络（WDM-PON）。 根据本发明的WDM-PON通过使用其中频谱效率（每单位带宽的传输比特数）高的调制格式，以较低的成本在经济上（以较低的成本）提供了更大的容量和更高带宽的传输，同时使用低噪声 光源的一部分。

公开(公告)号：US07920797B2

公开(公告)日：2011-04-05

申请号：US11747168

申请日：2007-05-10

申请人： Chang-Hee Lee ,  Sil-Gu Mun

发明人： Chang-Hee Lee ,  Sil-Gu Mun

IPC分类号： H04B10/06

CPC分类号： H04B10/66

摘要： The disclosure relates to an optical receiver having an apparatus for varying decision threshold level and an optical transmission system having the same. An optical receiver having an apparatus for varying decision threshold level includes a photo diode (PD) for receiving an optical signal and transforming the received optical signal into an electrical signal; a trans-impedance amplifier (TIA) for pre-amplifying the electrical signal transformed by the PD; a limiting amplifier (LA) for deciding the electrical signal amplified by the TIA as either level 0 or level 1 and for amplifying the decision signal; a clock and data recovery (CDR) for generating a clock and data from the amplified decision signal by the LA; and a control circuit for adjusting a decision threshold level depending on the received optical signal power by the PD and for providing the adjusted decision threshold level with the LA.

摘要翻译： 本公开涉及一种具有用于改变判定阈值电平的装置的光接收机和具有其的光传输系统。 具有用于改变判定阈值电平的装置的光接收机包括：光电二极管（PD），用于接收光信号并将接收到的光信号变换为电信号; 用于对由PD变换的电信号进行预放大的跨阻抗放大器（TIA）; 限制放大器（LA），用于将由TIA放大的电信号判定为0级或1级，并用于放大判定信号; 用于由LA从放大的判定信号产生时钟和数据的时钟和数据恢复（CDR）; 以及控制电路，用于根据PD接收到的光信号功率调整判定阈值电平，并提供与LA的调整后的判定阈值电平。