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31. 发明授权

US08666242B2 Response to OTUk-BDI for OTN interfaces to restore bidirectional communications 有权
标题翻译：响应OTUk-BDI为OTN接口恢复双向通信
公开(公告)号：US08666242B2
公开(公告)日：2014-03-04
申请号：US11758197
申请日：2007-06-05
申请人： David Bianchi , Anand Girish Parthasarathy , Ya Xu
发明人： David Bianchi , Anand Girish Parthasarathy , Ya Xu
IPC分类号： H04J14/00 , H04B10/00
CPC分类号： H04J14/0293 , H04J3/14 , H04J14/0283 , H04J14/0284 , H04J2203/006
摘要： In an OTN (Optical Transport Network), an OTN interface of a network element may receive a BDI (Backwards Defect Indicator) signal from a far end network element to which OTN frames are being transmitted. A BDI signal indicates the occurrence of a unidirectional failure in the transmission of OTN frames to which the far end network element responds by switching its routing to the network element. The OTN interface generates an AIS (Alarm Indication Signal) for its network element so that the network element switches network communication channels to the far end network element to ensure bidirectional switching upon a unidirectional failure.
摘要翻译：在OTN（Optical Transport Network，光传输网络）中，网元的OTN接口可以从正在发送OTN帧的远端网元接收BDI（后向缺陷指示符）信号。 BDI信号表示远端网元通过将其路由切换到网络单元来响应的OTN帧的传输中出现单向故障。 OTN接口为其网元生成AIS（告警指示信号），使得网元将网络通信信道切换到远端网元，确保单向故障双向切换。

32. 发明授权

US08625996B2 Optical transmitter, optical transmission method, and wavelength-selective variable delayer 有权
标题翻译：光发射机，光传输方式和波长选择可变延迟器
公开(公告)号：US08625996B2
公开(公告)日：2014-01-07
申请号：US11939646
申请日：2007-11-14
申请人： Toshiki Tanaka , Hisao Nakashima , Takeshi Hoshida , Toru Katagiri , Hiroki Ooi , Akira Miura
发明人： Toshiki Tanaka , Hisao Nakashima , Takeshi Hoshida , Toru Katagiri , Hiroki Ooi , Akira Miura
IPC分类号： H04B10/00
CPC分类号： H04J14/0286 , H04B10/2557 , H04B10/516 , H04J14/0204 , H04J14/0212 , H04J14/0217 , H04J14/0219 , H04J14/022 , H04J14/0221 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0283
摘要： An optical transmitter is provided for transmitting a wavelength multiplexed signal comprising an intensity modulation optical signal and a phase modulation optical signal through a transmission line. The optical transmitter includes a bit time difference given signal generator for generating at least two optical signals having a bit time difference therebetween, from the wavelength multiplexed signal. The optical transmitter further includes a wavelength multiplexed signal output unit to which at least two optical signals are input from the bit time difference given signal generator, and which generates and outputs a wavelength multiplexed signal in which the bit time difference was given between the phase modulation optical signal and the phase modulation optical signal.
摘要翻译：提供了一种用于通过传输线传输包括强度调制光信号和相位调制光信号的波分复用信号的光发射机。所述光发射机包括位时间差给定信号发生器，用于从所述波长复用信号产生具有位时间差的至少两个光信号。光发射机还包括波长多路复用信号输出单元，至少两个光信号从比特时间差给定信号发生器输入到该波长多路复用信号输出单元，并且其生成并输出波长多路复用信号，其中在强度调制光信号和相位调制光信号。

33. 发明授权

US08619807B2 High-capacity packet-switched ring network 有权
公开(公告)号：US08619807B2
公开(公告)日：2013-12-31
申请号：US13620483
申请日：2012-09-14
申请人： Mikhail Borditsky , Nicholas J Frigo , Aleksandra Smiljanic
发明人： Mikhail Borditsky , Nicholas J Frigo , Aleksandra Smiljanic
IPC分类号： H04J14/02
CPC分类号： H04J14/0283 , H04J14/0212 , H04J14/0226 , H04J14/0241 , H04J14/0254 , H04L12/5602 , H04L2012/5632 , H04L2012/5649 , H04L2012/5679 , H04Q11/0005 , H04Q11/0066 , H04Q11/0478 , H04Q2011/002 , H04Q2011/0022 , H04Q2011/0033 , H04Q2011/0035 , H04Q2011/0064 , H04Q2011/0069 , H04Q2011/0092
摘要： A packet-switched WDMA ring network has an architecture utilizing packet stacking and unstacking for enabling nodes to access the entire link capacity by transmitting and receiving packets on available wavelengths. Packets are added and dropped from the ring by optical switches. A flexible credit-based MAC protocol along with an admission algorithm enhance the network throughput capacity.

34. 发明申请

US20130330081A1 Wavelength Assignment In An Optical WDM Network 有权
标题翻译：光波分复用网络中的波长分配
公开(公告)号：US20130330081A1
公开(公告)日：2013-12-12
申请号：US13965376
申请日：2013-08-13
申请人： Alcatel Lucent
发明人： Alan Glen Solheim , Peter David Roorda , Kevan Peter Jones , Greg Peter Friesen
IPC分类号： H04J14/02
CPC分类号： H04J14/0241 , H04J14/0221 , H04J14/0246 , H04J14/0257 , H04J14/0268 , H04J14/0269 , H04J14/0283 , H04J14/0284
摘要： The path selection and wavelength assignment to a selected path are performed by mapping the wavelength reach to the demand distribution (agile reach) resulting in a 50-60% increase in the network reach. The network reach is further increased (about 2.2 times) when on-line measured performance data are used for path selection and wavelength assignment. The connections may be engineered/upgraded individually, by optimizing the parameters of the entire path or of a regenerator section of the respective path. The upgrades include changing the wavelength, adjusting the parameters of the regenerator section, controlling the launch powers, mapping a certain transmitter and/or receiver to the respective wavelength, selecting the wavelengths on a certain link so as to reduce cross-talk, increasing wavelength spacing, etc.
摘要翻译：通过将波长范围映射到需求分布（敏捷达到）来实现对所选路径的路径选择和波长分配，从而导致网络覆盖率增加50-60％。当在线测量性能数据用于路径选择和波长分配时，网络距离进一步增加（约2.2倍）。可以通过优化相应路径的整个路径或再生器部分的参数来单独地设计/升级连接。升级包括改变波长，调整再生器部分的参数，控制发射功率，将某个发射机和/或接收机映射到相应的波长，选择某个链路上的波长，以减少串扰，增加波长间距等

35. 发明授权

US08606101B2 Optical channel intelligently shared protection ring 有权
公开(公告)号：US08606101B2
公开(公告)日：2013-12-10
申请号：US13856170
申请日：2013-04-03
申请人： Tellabs Operations, Inc.
发明人： Eric L. Chan , Matthew S. Vrba
IPC分类号： G02F1/00
CPC分类号： H04B10/032 , H04J14/0283 , H04J14/0295 , H04L12/437
摘要： An optical ring network has one or more working wavelengths and multiple protection wavelengths adapted to support the working wavelength(s). Routing tables may be used in network nodes to assign traffic of a failed working wavelength to a protection wavelength. The protection technique may be applied to networks employing, for example, Dense Wave Division Multiplexing (DWDM).

36. 发明授权

US08599881B2 Redundant communication timing for remote nodes 有权
标题翻译：远程节点的冗余通信时序
公开(公告)号：US08599881B2
公开(公告)日：2013-12-03
申请号：US12953761
申请日：2010-11-24
申请人： Gregory A. Wolfe , Michael Bugenhagen
发明人： Gregory A. Wolfe , Michael Bugenhagen
IPC分类号： H04J3/06
CPC分类号： H04L7/0016 , H04J3/06 , H04J3/0635 , H04J3/0641 , H04J3/0644 , H04J3/0661 , H04J3/0682 , H04J14/0226 , H04J14/0279 , H04J14/028 , H04J14/0282 , H04J14/0283 , H04J14/0284 , H04J14/0286 , H04J14/08 , H04L7/0075 , H04L12/2852 , H04L12/422
摘要： A system and method for redundant synchronizing to a reference clock for data communications. A determination is made whether a first data stream and a second data stream are available. The first data stream and the second data stream are received through opposing directions of a communications ring. A first data packet and second data packet are received at a remote node in response to the first data stream and second data stream being available. A timing characteristic of the first data packet and the second data packet correspond to a tick of a reference clock. The tick of the reference clock is extracted utilizing a timing characteristic of the first data packet or second data packet in response to the first data stream or the second data stream being available. A secondary clock is disciplined with the reference clock by adjusting the secondary clock based on a difference between times measured by the reference clock and the secondary clock to generate a clock signal. The clock signal is communicated to one or more interfaces for distribution.
摘要翻译：用于冗余同步到用于数据通信的参考时钟的系统和方法。确定第一数据流和第二数据流是否可用。第一数据流和第二数据流通过通信环的相反方向被接收。响应于第一数据流和第二数据流可用，在远程节点处接收第一数据分组和第二数据分组。第一数据分组和第二数据分组的定时特性对应于参考时钟的刻度。响应于第一数据流或第二数据流可用，利用第一数据分组或第二数据分组的定时特性提取参考时钟的刻度。通过基于由参考时钟测量的时间与辅助时钟之间的差异来调节辅助时钟来产生时钟信号，辅助时钟受到参考时钟的约束。时钟信号被传送到一个或多个接口用于分发。

37. 发明申请

US20130279900A1 PASSIVE OPTICAL NETWORK SYSTEM, METHOD FOR TRANSMITTING AND RECEIVING OPTICAL SIGNAL THEREOF, AND OPTICAL LINE TERMINAL 审中-公开
标题翻译：被动光网络系统，发送和接收光信号的方法和光线路终端
公开(公告)号：US20130279900A1
公开(公告)日：2013-10-24
申请号：US13590537
申请日：2012-08-21
申请人： Jong Deog Kim , Jong Jin Lee , Chang Soo Park
发明人： Jong Deog Kim , Jong Jin Lee , Chang Soo Park
IPC分类号： H04J14/02
CPC分类号： H04J14/0212 , H04J14/022 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0265 , H04J14/0268 , H04J14/0282 , H04J14/0283 , H04J14/0286
摘要： An optical line terminal (OLT) of a passive optical network (PON) detects a fault in an optical path configured as a single optical fiber core having an annular shape, divides the optical path into a right path and a left path having bi-directionality based on the fault position in which the fault has occurred, demultiplexes a plurality of downstream optical wavelength signals to be transmitted to at least one optical network terminal (ONT) of each group into an optical wavelength signal of the right path and an optical wavelength signal of the left path according to the position in which the fault has occurred, and outputs the same to at least one of the ONTs of each group.
摘要翻译：无源光网络（PON）的光线路终端（OLT）检测配置为具有环形形状的单个光纤芯的光路中的故障，将光路划分为右路径和具有双向性的左路径基于发生故障的故障位置，将要发送到各组的至少一个光网络终端（ONT）的多个下行光波长信号解复用为右路径的光波长信号和光波长信号根据发生故障的位置的左路径输出，并将其输出到每组的至少一个ONT。

38. 发明授权

US08559817B2 Communication system comprising a tunable laser 有权
标题翻译：包括可调谐激光器的通信系统
公开(公告)号：US08559817B2
公开(公告)日：2013-10-15
申请号：US13126087
申请日：2009-10-13
申请人： Gert Sarlet , Pierre-Jean Rigole
发明人： Gert Sarlet , Pierre-Jean Rigole
IPC分类号： H04J14/02
CPC分类号： H04B10/07957 , H04B10/272 , H04J14/0234 , H04J14/0236 , H04J14/0246 , H04J14/025 , H04J14/0256 , H04J14/0282 , H04J14/0283
摘要： A communication system includes a communication unit with a first part and a number of a second part, where the second part is arranged to be placed at the location of an end user, and where the first part is common for a number of second parts. The first part and the second part respectively include a laser, and each second part is connected with the first part by a fiber optic cable and a frequency filter, the first part and the relevant second part being arranged to exchange information by laser light. Each second part includes a tunable laser, the first part is arranged to analyze light received from a second part, and to transmit information to the second part while the first part is receiving light from the second part, and the information contains information for the second part that it should adjust, where required, its frequency or wavelength, and the second part thus is arranged to change its frequency or wavelength.
摘要翻译：通信系统包括具有第一部分和多个第二部分的通信单元，其中第二部分布置成放置在最终用户的位置，并且第一部分对于多个第二部分是共同的。第一部分和第二部分分别包括激光器，并且每个第二部分通过光纤电缆和频率滤波器与第一部分连接，第一部分和相关的第二部分被布置成通过激光交换信息。每个第二部分包括可调激光器，第一部分被布置成分析从第二部分接收的光，并且在第一部分正在从第二部分接收光的同时将信息发送到第二部分，并且该信息包含第二部分的信息它应该根据需要调整其频率或波长，并且第二部分被设置为改变其频率或波长。

39. 发明授权

US08521024B2 Long reach optical network 有权
标题翻译：长途光网络
公开(公告)号：US08521024B2
公开(公告)日：2013-08-27
申请号：US13150505
申请日：2011-06-01
申请人： Glenn A. Wellbrock , Tiejun J. Xia
发明人： Glenn A. Wellbrock , Tiejun J. Xia
IPC分类号： H04J14/00 , H04J14/02
CPC分类号： H04J14/0227 , H04B10/271 , H04J14/021 , H04J14/022 , H04J14/0226 , H04J14/0257 , H04J14/0283 , H04J14/0286
摘要： An optical network includes a first optical network for carrying a plurality of optical channels in an optical fiber, wherein each of the plurality of optical channels comprise a discrete wavelength in a first range of wavelengths. A second optical network coupled to the first optical network by a first tunable filter. A first customer location coupled to the second optical network by a second tunable filter. The first tunable filter is configured to pass a first set of optical channels from the first optical network to the second optical network. The first set of optical channels includes a subset of the plurality optical channels within a second range of wavelengths less than the first range of wavelengths. The second tunable filter is configured to pass a particular channel within the first set of optical channels from the second optical network to the first customer location.
摘要翻译：光网络包括用于在光纤中携带多个光通道的第一光网络，其中多个光通道中的每一个在第一波长范围内包括离散波长。通过第一可调谐滤波器耦合到第一光网络的第二光网络。通过第二可调滤波器耦合到第二光网络的第一客户位置。第一可调滤波器被配置为将第一组光信道从第一光网络传递到第二光网络。第一组光通道包括在小于第一波长范围的第二波长范围内的多个光通道的子集。第二可调滤波器被配置为将第一组光通道内的特定信道从第二光网络传递到第一客户位置。

40. 发明授权

US08521022B1 Dynamic assignment of wavelengths in agile photonic networks 有权
标题翻译：敏捷光子网络波长的动态分配
公开(公告)号：US08521022B1
公开(公告)日：2013-08-27
申请号：US10128092
申请日：2002-04-23
申请人： Kotikalapudi Sriram , Mukul Katiyar , Jonathan Titchener , Rajender Rao Nednur , Anthony Vernon Walker Smith
发明人： Kotikalapudi Sriram , Mukul Katiyar , Jonathan Titchener , Rajender Rao Nednur , Anthony Vernon Walker Smith
IPC分类号： H04J14/00
CPC分类号： H04Q11/0005 , H04J14/0221 , H04J14/0246 , H04J14/0257 , H04J14/0267 , H04J14/0269 , H04J14/0283 , H04J14/0284
摘要： In an automatically switched optical network, the wavelengths are assigned to optical path based on their intrinsic physical performance and on the current network operating parameters. The wavelength performance information is organized in binning tables, based primarily on the wavelength reach capabilities. A network topology database provides the distance between the nodes of the network, which is used to determine the length of the optical path. Other network operating parameters needed for wavelength selection are also available in this database. Once a bin corresponding to the path length is identified in the binning table, the wavelength for that path is selected based on length only, or based on the length and one or more additional parameters. The optical path performance is estimated for the selected wavelength, and the search continues if the estimated path performance is not satisfactory. Several available wavelengths are searched and of those, the wavelength that is most used along the optical path in consideration or alternatively network-wide is selected and assigned. This method helps minimize wavelength fragmentation. The binning tables may have various granularities, and may be organized by reach, or by reach, wavelength spacing, the load on the respective optical path, the fiber type, etc.
摘要翻译：在自动切换光网络中，根据其固有物理性能和当前网络运行参数将波长分配给光路。波长性能信息主要基于波长到达能力组织在合并表中。网络拓扑数据库提供网络节点之间的距离，用于确定光路长度。波长选择所需的其他网络运行参数也可在此数据库中使用。一旦在分箱表中识别出对应于路径长度的仓，则该路径的波长仅基于长度，或者基于长度和一个或多个附加参数来选择。对于所选择的波长估计光路性能，如果估计的路径性能不令人满意，则搜索继续。搜索几种可用的波长，并且选择和分配在考虑中或最广泛的光路中最常使用的波长。该方法有助于最小化波长碎片。分箱表可以具有各种粒度，并且可以通过到达或到达波长间隔，各个光路上的负载，光纤类型等来组织。

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