公开(公告)号：US10439711B2

公开(公告)日：2019-10-08

申请号：US15923105

申请日：2018-03-16

申请人： Coriant Operations, Inc.

发明人： Julia Y. Larikova ,  Yajun Wang

IPC分类号： H04B10/00 ,  H04B10/075 ,  H04J14/00

摘要： The disclosed methods, apparatus, and systems allow safe and easy deployment of amplifier products that exceed laser safe limits without the need for fiber testing and characterization or OTDR techniques. One example embodiment is a method for ensuring eye safety in an optical network. The example method includes detecting optical connectivity between an output of a transmit amplifier and a passive optical processing element. The transmit amplifier is located at a first network node and is configured to output optical power greater than eye-safe level. The passive optical processing element is located at a second network node and is configured to guarantee a reduction of a maximum optical power level at an output side of the passive optical processing element to an eye-safe optical level. The detecting occurs at the first network node, and the transmit amplifier is enabled or disabled as a function of detection of the optical connectivity.

公开(公告)号：US10181998B2

公开(公告)日：2019-01-15

申请号：US14844605

申请日：2015-09-03

申请人： Coriant Operations, Inc.

发明人： Bradley R. Kangas ,  Anoop J. Mathew ,  Jai Harpalani ,  James N. Turner ,  Mark A. Richmond ,  Kenneth S. Mizialko

IPC分类号： H04L12/729 ,  H04L12/707 ,  H04L12/703 ,  H04Q3/545

摘要： Embodiments including methods, systems, and apparatuses for distributing, processing, and reacting to path information distributed via a service-agnostic packet fabric for the purpose of enabling path selection are disclosed. By configuring two ingress line cards to send path quality words to each other via the switch fabric, compare the path quality words, and determine whether to transmit traffic to an egress line card via the switch fabric based on the comparison of the path quality words, the embodiments enable a central switch fabric to be unaware of the paths that it carries, and enable both ingress and egress bandwidth of the switch fabric to be sized according to the facilities for which it is terminating. The switch fabric does not need to support working and protection paths simultaneously in some embodiments, allowing it to be scaled appropriately to termination facilities.

公开(公告)号：US09876573B2

公开(公告)日：2018-01-23

申请号：US15140037

申请日：2016-04-27

申请人： Coriant Operations, Inc.

发明人： Bradley Ronald Kangas ,  Yajun Wang ,  Robert D. Gatze ,  Julia Y. Larikova

IPC分类号： H04B10/27 ,  H04B10/40 ,  H04B10/80

CPC分类号： H04B10/27 ,  H04B10/40 ,  H04B10/807

摘要： Example embodiments include an optical networking system (e.g., apparatus) and corresponding method. According to some embodiments, a plurality of shelves may be interconnected to form a daisy chain, each shelf including unpowered passive optical modules and the daisy chain including an active module having a passive power communication source. The passive power communication source may distribute passive power to memory devices on the one unpowered passive optical networking modules. The memory devices may provide respective communication as a function of interconnections of the daisy chain and passive power distributed by the passive power communication source. Advantages include unique identification of the memory devices without requiring active power to their corresponding modules, and continuous discovery and inventory of such memory devices. Such embodiments may also help network planners better manage and end-to-end optical circuit which may reduce amplification or regeneration nodes creating a more cost efficient solution.

公开(公告)号：US09502992B2

公开(公告)日：2016-11-22

申请号：US13486775

申请日：2012-06-01

申请人： Cecil W. Deisch

发明人： Cecil W. Deisch

IPC分类号： H02M3/335 ,  H02M7/217

CPC分类号： H02M7/217

摘要： A voltage rectifier circuit having a storage element and a switching stage that is switchable to enable the storage element to capture a peak voltage of an alternating power source. The switching stage includes transistors arranged in a back-to-back configuration. In one example, the storage element is a capacitor and the transistors are PNP bipolar junction transistors. The configuration of the circuit enables reduced loading on the power source, as well as reduced sensitivity to temperature.

摘要翻译： 一种具有存储元件和开关级的电压整流器电路，其可切换以使得存储元件能够捕获交流电源的峰值电压。 开关级包括以背对背配置布置的晶体管。 在一个示例中，存储元件是电容器，并且晶体管是PNP双极结型晶体管。 电路的配置可以减少电源的负载，降低对温度的敏感性。

公开(公告)号：US09252904B2

公开(公告)日：2016-02-02

申请号：US13150637

申请日：2011-06-01

申请人： Abhijit S. Chitambar ,  Ramasubramanian Anand ,  Kenneth M. Fisher

发明人： Abhijit S. Chitambar ,  Ramasubramanian Anand ,  Kenneth M. Fisher

IPC分类号： H04B10/00 ,  H04J14/00 ,  H04J3/14 ,  H04J3/06

CPC分类号： H04J3/14 ,  H04J3/0641

摘要： The disclosed methods and apparatuses provide a unique and cost efficient approach to using traffic channels of an optical mesh network, and sometimes optical supervisory channels, for carrying timing information (e.g., BITS timing signals), thus eliminating the need to use external BITS sources at remote add/drop nodes of a network. Planning the distribution of timing in such an optical mesh network includes identifying in the network a source node associated with an external timing source, identifying optical light paths between nodes in the network, and, for nodes other than the source node, selecting optical light paths originating either directly or indirectly from the source node to use to derive timing information.

摘要翻译： 所公开的方法和设备提供了使用光网状网络（有时是光学监控信道）的业务信道用于承载定时信息（例如，BITS定时信号）的独特和成本有效的方法，从而消除了使用外部BITS源的需要 网络的远程添加/删除节点。 规划这种光网状网络中的定时分布包括在网络中识别与外部定时源相关联的源节点，识别网络中的节点之间的光学光路，以及对于源节点以外的节点，选择光学光路径 从源节点直接或间接发起以用于导出定时信息。

公开(公告)号：US09681583B2

公开(公告)日：2017-06-13

申请号：US14387451

申请日：2013-09-23

申请人： TELLABS OPERATIONS, INC.

发明人： Zhen Lei ,  Qinzhen Ba ,  Zongxian Duan ,  Huihui Yu

IPC分类号： H05K7/20 ,  H01L23/40 ,  B23P15/26 ,  H05K1/02 ,  H01L23/367

CPC分类号： H05K7/20409 ,  B23P15/26 ,  H01L23/3677 ,  H01L23/4093 ,  H01L2924/0002 ,  H05K1/0203 ,  H05K2201/06 ,  H01L2924/00

摘要： An apparatus and system for a heat sink assembly, and a procedure for forming a heat sink assembly. The heat sink assembly includes a heat sink having a base and fins extending from the base, and a spring clip disposed on the heat sink between the fins. The spring clip includes a first tab that forms a first angle with respect to the base of the heat sink and including a second tab that forms a second angle with respect to the base of the heat sink. The first and second tabs are attached to the circuit board. By virtue thereof, a heat sink attachment to cage is provided that is space-efficient and permits a higher density of cages on a circuit board than do conventional arrangements.

公开(公告)号：US09591058B2

公开(公告)日：2017-03-07

申请号：US14038240

申请日：2013-09-26

申请人： TELLABS OPERATIONS, INC.

发明人： Arthur M. Pajak ,  Zbigniew Pigula ,  Chris O'Brien

IPC分类号： G06F15/16 ,  H04L29/08

CPC分类号： H04L67/06

摘要： Recovery of an incomplete transfer of a file from a sender to at least one recipient connected to the sender via a network is disclosed. In an example embodiment, the at least one recipient receives one or more packets of the file sent by the sender via the network. The at least one recipient sets a bit in a bitmap, for each received packet, to efficiently keep track of and request for retransmission of missing packets. Thus, after the file is sent by the sender, the at least one recipient requests from the sender a retransmission of any packet corresponding to a bit that has not been set. The sender then sends packets including the missing packets via unicast to the at least one recipient which has sent a request for retransmission.

摘要翻译： 公开了将文件从发送方到通过网络连接到发送方的至少一个接收方的不完整传送的恢复。 在示例实施例中，至少一个接收者经由网络接收由发送者发送的文件的一个或多个分组。 至少一个接收者为每个接收到的分组设置位图中的位，以有效地跟踪丢失分组的重传请求。 因此，在由发送者发送文件之后，至少一个接收方从发送者请求对与未设置的比特相对应的任何分组的重传。 然后，发送方通过单播将包括丢失的分组的分组发送到已经发送了重传请求的至少一个接收者。

公开(公告)号：US09397900B2

公开(公告)日：2016-07-19

申请号：US12891325

申请日：2010-09-27

申请人： Weiying Cheng

发明人： Weiying Cheng

IPC分类号： H04L12/26 ,  H04L12/24 ,  H04L12/46 ,  G06F11/00

CPC分类号： H04L41/5038 ,  H04L12/4641 ,  H04L43/0829

摘要： Embodiments including methods, apparatuses, and computer program products for calculating frame parameters for the purpose of measuring performance in a network based on the calculated frame parameters are disclosed. By automatically or manually provisioning at least two network elements in a star or other network topology to transmit and receive service frames (e.g., Loss Measurement Messages or Loss Measurement Responses), the embodiments enable network elements to share network resources, such as frame counters, thereby decreasing the number of frame counters needed to perform frame parameter measurements and increasing scalability for a given counter resource supported by a low cost network processor units.

摘要翻译： 公开了包括用于基于所计算的帧参数来计算网络中的性能的目的来计算帧参数的方法，装置和计算机程序产品的实施例。 通过自动或手动地配置星形或其他网络拓扑中的至少两个网络元件以发送和接收服务帧（例如，损失测量消息或丢失测量响应），实施例使得网络元件能够共享网络资源，诸如帧计数器， 从而减少执行帧参数测量所需的帧计数器的数量，并增加由低成本网络处理器单元支持的给定计数器资源的可扩展性。

公开(公告)号：US09014562B2

公开(公告)日：2015-04-21

申请号：US12042793

申请日：2008-03-05

申请人： Ornan A. Gerstel ,  Rajiv Ramaswami

发明人： Ornan A. Gerstel ,  Rajiv Ramaswami

IPC分类号： H04J14/02

CPC分类号： H04J14/022 ,  H04J14/0201 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0216 ,  H04J14/0278 ,  H04J14/0282 ,  H04J14/0286

摘要： A wavelength division multiplexed optical communication system includes a plurality of optical line terminals which may be part of separate in service networks, each having a line interface and an all-optical pass-through interface including a plurality of pass-through optical ports, and each also including a plurality of local optical ports which are connectable to client equipment and an optical multiplexer/demultiplexer for multiplexing/demultiplexing optical wavelengths. The optical multiplexer/demultiplexer may include one or more stages for inputting/outputting individual wavelengths or bands of a predetermined number of wavelengths, or a combination of bands and individual wavelengths. At least one of the pass-through optical ports of an optical line terminal of one network may be connected to at least one of the pass-through optical ports of an optical line terminal of another network to form an optical path from the line interface of the optical line terminal of the one network to the line interface of the optical line terminal of the another network to form a merged network. The use of such optical line terminals allows the upgrading and merging of the separate networks while in service.

摘要翻译： 波分多路复用光通信系统包括多个光线路终端，其可以是服务网络中分离的一部分，每个具有线路接口和包括多个通过光端口的全光通过接口，并且每个 还包括可连接到客户设备的多个本地光端口和用于复用/解复用光波长的光复用器/解复用器。 光复用器/解复用器可以包括一个或多个级，用于输入/输出预定数量的波长的各个波长或波段，或波段和各波长的组合。 一个网络的光线路终端的至少一个直通光端口可以连接到另一网络的光线路终端的至少一个直通光端口，以形成从 一个网络的光线路终端到另一个网络的光线路终端的线路接口，形成一个合并网络。 使用这种光线路终端允许在使用中升级和合并分离的网络。

公开(公告)号：US10536236B2

公开(公告)日：2020-01-14

申请号：US16034120

申请日：2018-07-12

申请人： Coriant Operations, Inc.

发明人： Richard Y. Younce ,  Yajun Wang ,  Julia Y. Larikova ,  Bradley R. Kangas

IPC分类号： H04J14/02

摘要： An intranodal reconfigurable optical add/drop multiplexer (ROADM) fiber management apparatus, and a system employing the apparatus. The apparatus comprises a plurality of ingress optical ports, a plurality of egress optical ports, and a plurality of optical interconnections interposed between ones of the plurality of ingress optical ports and ones of the plurality of egress optical ports. Each of the plurality of ingress optical ports corresponds to one of the plurality of egress optical ports. Each one of the plurality of ingress optical ports is optically coupled by way of the optical interconnections to at least one of the plurality of egress optical ports. Each one of the plurality of egress optical ports is optically coupled by way of the optical interconnections to at least one of the plurality of ingress optical ports.