公开(公告)号：EP1309218A2

公开(公告)日：2003-05-07

申请号：EP02292727.1

申请日：2002-10-31

申请人： Nippon Telegraph and Telephone Corporation

发明人： Shiomoto, Kohei ,  Yamanaka, Naoaki ,  Oki, Eiji

IPC分类号： H04Q11/00 ,  H04L12/56

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/005 ,  H04Q2011/0064 ,  H04Q2011/0073

摘要： The present invention relates to a node used in an optical communication network, and comprises functions for transferring and receiving data, and a unit for establishing and releasing a cut through path to a node of the next stage, the establishing and releasing unit having a detecting unit which detects the arrival of a request packet for establishing a cut through path to the node stage.

摘要翻译： 本发明涉及一种在光通信网络中使用的节点，并且包括用于传送和接收数据的功能，以及用于建立和释放到下一级节点的切入路径的单元，建立和释放单元具有检测 单元，其检测用于建立到节点级的切入路径的请求分组的到达。

公开(公告)号：EP1304013A2

公开(公告)日：2003-04-23

申请号：EP01953890.9

申请日：2001-07-09

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： SCHEERER, Christian ,  ELBERS, Jörg-Peter ,  GLINGENER, Christoph

IPC分类号： H04Q11/00

CPC分类号： H04Q11/0005 ,  H04J14/0206 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0221 ,  H04Q2011/0009 ,  H04Q2011/0016 ,  H04Q2011/0035 ,  H04Q2011/0041 ,  H04Q2011/0047 ,  H04Q2011/005 ,  H04Q2011/0075

摘要： The invention relates to a modular optical network node, which divides the optical input signals into optical subbands, processed by a central element or by several central elements and which then recombines the optical subbands once again to form an optical output signal. Various functionalities, such as add-drop functionality, a drop and continue functionality, a multicast functionality, a broadcast functionality, a ring interconnect functionality, and a cross connect functionality, can be assigned to the central element or to the central elements of the modular optical network node. According to the assignment of a functionality, the modular optical network node can be used in networks having a different structure.

公开(公告)号：EP1252794A2

公开(公告)日：2002-10-30

申请号：EP01984382.0

申请日：2001-07-26

申请人： Polatis Limited

发明人： DAMES, Andrew ,  CLARK, Victoria Ann

IPC分类号： H04Q11/00

CPC分类号： G02B6/3542 ,  G02B6/3512 ,  G02B6/3524 ,  G02B6/3556 ,  G02B6/356 ,  G02B6/3568 ,  G02B6/357 ,  G02B6/3574 ,  G02B6/3578 ,  G02B6/359 ,  G02B6/3594 ,  H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0022 ,  H04Q2011/0024 ,  H04Q2011/0026 ,  H04Q2011/0041 ,  H04Q2011/005

摘要： An optical switch comprises an optical input (902) and an optical output (904), the switch further comprising a wavelength selective switch element (912) for directing light of a selected wavelength between the input (902) and the optical output (904), wherein the switch element is tuneable to a plurality of different wavelengths. By having tuneable switch elements, the switch can be made having fewer elements and therefore more compact.

摘要翻译： 一种光开关，包括光输入（902）和光输出（904），所述开关还包括波长选择开关元件（912），用于在所述输入（902）和所述光输出（904）之间引导选定波长的光， 其中开关元件可调谐到多个不同的波长。 通过具有可调开关元件，可以使开关具有更少的元件并因此更紧凑。

公开(公告)号：EP1228592A2

公开(公告)日：2002-08-07

申请号：EP00992313.7

申请日：2000-11-02

申请人： Xros, Inc.

发明人： RAMASWAMI, Rajiv ,  WARD, Robert, R.

IPC分类号： H04J3/00

CPC分类号： H04Q11/0062 ,  G02B6/43 ,  H04Q2011/0024 ,  H04Q2011/0026 ,  H04Q2011/0041 ,  H04Q2011/0043 ,  H04Q2011/005 ,  H04Q2011/0073 ,  H04Q2011/0081 ,  H04Q2011/0083

摘要： The present invention provides methods, systems, and data communication networks for providing fault protection in an optical network. In one embodiment, the present invention includes a source node having an optical cross-connect switching system that has a source port card with a splitter to split an input optical signal into two similar optical signals. The two similar optical signals contain the same information. A source optical switching device switches one of the two similar optical signals to a first destination port card and onto an adjacent node and the other one of the similar optical signals to a second destination port card and onto a different adjacent node, respectively, such that the two similar optical signals are then diversely routed through the optical network. A destination node having an optical cross-connect switching system receives the two similar optical signals via first and second source port cards, respectively. The optical cross-connect switching system of the destination node includes a destination optical switching device to switch each of the two similar optical signals to a destination port card having a selector switch. The selector switch selects one of the available two similar optical signals, such that, if one of the diversely routed similar optical signals fails to reach the destination node, due to a fault in the optical network, the other one of the similar optical signals is still available. Thus, the same information is provided to the destination port card of the destination node and 1+1 optical fault protection is provided for the optical network.

公开(公告)号：EP1073886A1

公开(公告)日：2001-02-07

申请号：EP99927075.4

申请日：1999-04-29

申请人： American Holographic, Inc.

发明人： XIANG, Lian Qin ,  MIKES, Thomas

IPC分类号： G01J3/18

CPC分类号： G02B6/4249 ,  G01J3/18 ,  G02B6/2931 ,  H04Q11/0005 ,  H04Q2011/002 ,  H04Q2011/0026 ,  H04Q2011/0035 ,  H04Q2011/0039 ,  H04Q2011/005

摘要： A high resolution aberration corrected concentric spectrometer (101) includes a convex diffraction grating (100) having a plurality of nonparallel grooves (102). The grooves (102) of the convex grating (100) provide correction for field aberrations. The utilization of the convex diffraction grating (100) enables the present spectrometer (110) to provide highly accurate spectral imaging with greatly improved resolution. By utilizing the convex diffraction grating (100) having curved nonparallel grooves (102), the spectrometer (110) is functional for a large number of applications.

公开(公告)号：EP0501647B1

公开(公告)日：1998-10-28

申请号：EP92301293.4

申请日：1992-02-18

申请人： AT&T Corp.

发明人： Cloonan, Thomas Jay ,  Erickson, John Robert ,  Lentine, Anthony Lodovico ,  McCormick Jr., Frederick Bossert, ,  Richards, Gaylord Warner

IPC分类号： H04Q3/52

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0039 ,  H04Q2011/005

公开(公告)号：EP0501647A3

公开(公告)日：1993-06-16

申请号：EP92301293.4

申请日：1992-02-18

申请人： AT&T Corp.

发明人： Cloonan, Thomas Jay ,  Erickson, John Robert ,  Lentine, Anthony Lodovico ,  McCormick, Frederick Bossert, Jr. ,  Richards, Gaylord Warner

IPC分类号： H04Q3/52

CPC分类号： H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0039 ,  H04Q2011/005

摘要： A network arrangement and control method where, before any transmission of data occurs for a particular communication, a network controller determines an unused path to provide a connection, advantageously all the way through the network from a given inlet to a given outlet. Once the identity of the unused path is known, the controller determines control information for use in activating that path and transmits that control information into the network, significantly via the network inlets. The network responds by activating the determined path and communication is enabled via the activated path, but only for the single connection and no buffering of information is required within the network. The network is particularly well suited for optical implementation and control is effected without the use of spatial light modulators but rather by means of control elements embedded within the network itself.

公开(公告)号：EP3286861A4

公开(公告)日：2018-05-09

申请号：EP16792207

申请日：2016-05-12

申请人： HUAWEI TECH CO LTD

发明人： GRAVES ALAN FRANK

IPC分类号： H04J14/02

CPC分类号： H04Q11/0003 ,  H04Q11/0005 ,  H04Q2011/0045 ,  H04Q2011/005

摘要： A method includes obtaining a first packet, where the first packet has a length and comparing the length of the first packet to a length threshold. The method also includes when the length of the first packet is greater than or equal to the length threshold, placing the first packet in a long packet container and transmitting the long packet container to a first photonic switch and when the length of the first packet is less than the length threshold, placing the first packet in a first short packet container and transmitting the first short packet container to a second photonic switch.

公开(公告)号：EP3259627A4

公开(公告)日：2018-03-28

申请号：EP16758439

申请日：2016-02-19

申请人： HUAWEI TECH CO LTD

发明人： JIANG ZHIPING ,  CHEN CHEN ,  ZHANG ZHUHONG ,  LI CHUANDONG

IPC分类号： G02B6/28 ,  H04Q11/00

CPC分类号： H04Q11/0005 ,  H04B10/25 ,  H04B10/503 ,  H04B10/572 ,  H04J14/021 ,  H04J14/0275 ,  H04J14/0282 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0018 ,  H04Q2011/0032 ,  H04Q2011/0033 ,  H04Q2011/0039 ,  H04Q2011/0041 ,  H04Q2011/005 ,  H04Q2011/0058

摘要： An optical circuit switching matrix includes a plurality of optical ports, each optical port being optically coupled to a respective one of a plurality of user nodes and an optical coupler having at least one input port optically coupled to the plurality of optical ports, and an output port. The optical circuit switching matrix also includes a wavelength demultiplexer having an input optically coupled to the output port of the optical coupler, and a plurality of output ports, each output port being optically coupled to a respective one of the plurality of optical ports.

公开(公告)号：EP3286860A1

公开(公告)日：2018-02-28

申请号：EP16792165

申请日：2016-05-10

申请人： HUAWEI TECH CO LTD

发明人： GRAVES ALAN FRANK

IPC分类号： H04J14/02

CPC分类号： H04Q11/0003 ,  H04Q11/0005 ,  H04Q2011/0045 ,  H04Q2011/005

摘要： A method includes comparing a length of a first packet to a threshold, determining that the first packet is a short packet when the length of the first packet is less than the threshold, and determining that the first packet is a long packet when the length of the first packet is greater than or equal to the threshold. The method also includes when the first packet is a long packet placing the first packet in a long packet container and transmitting the long packet container to a photonic switch. Additionally, the method includes when the first packet is a short packet placing a first portion of the first packet in a first short packet container, where the first short packet container includes a sequence number, a source top-of-rack switch (TOR) address, and a destination TOR address and transmitting the first short packet container to an electronic switch.