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公开(公告)号：AU4302201A
公开(公告)日：2001-06-04
申请号：AU4302201
申请日：2000-11-02
Applicant: XROS INC
Inventor： RAMASWAMI RAJIV , WARD ROBERT R
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公开(公告)号：AU3071901A
公开(公告)日：2001-05-14
申请号：AU3071901
申请日：2000-11-02
Applicant: XROS INC
Inventor： RAMASWAMI RAJIV , WARD ROBERT R
Abstract: Methods, apparatus and systems for regenerating, monitoring and bridging optical signals through an optical cross-connect switch to provide increased reliability. A self testing method, apparatus and system for an optical cross-connect switch. An optical-to-electrical-to-optical converter (O/E/O) is provided in an optical cross-connect switch to provide optical-electrical-optical conversion. I/O port cards having an optical-to-electrical-to-optical converter are referred to as smart port cards while I/O port cards without an optical-to-electrical-to-optical converter are referred to as passive port cards. Test port/monitor cards are also provided for testing optical cross-connect switches. Methods, apparatus and systems for performing bridging, test access, and supporting redundant optical switch fabrics are also disclosed.
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3.发明申请METHOD AND APPARATUS FOR SIGNALING BETWEEN AN OPTICAL CROSS-CONNECT SWITCH AND ATTACHED NETWORK EQUIPMENT 审中-公开用于在光学交叉连接开关和附连网络设备之间进行信号传送的方法和设备
公开(公告)号：WO0133895A3
公开(公告)日：2002-01-17
申请号：PCT/US0030303
申请日：2000-11-02
Applicant: XROS INC
Inventor： RAMASWAMI RAJIV
CPC classification number: H04Q11/0062 , G02B6/43 , H04J14/0293 , H04J14/0295 , H04J14/0297 , H04Q11/0066 , H04Q2011/0024 , H04Q2011/0026 , H04Q2011/0041 , H04Q2011/0043 , H04Q2011/005 , H04Q2011/0073 , H04Q2011/0081 , H04Q2011/0083 , H04Q2011/0088
Abstract: Methods, apparatus and systems for signaling information between an optical cross-connect switch and attached network equipment such as Internet Protocol (IP) routers, WDM terminals, SONET add/drop multiplexers and ATM switches. In one embodiment, an out-of-band signaling interface between an optical cross-connect switch and attached network equipment is realized by using an out-of-band communication channel over a network. In another embodiment, a decentralized signaling interface is provided by one or more dedicated signal lines between an optical cross-connect switch and attached network equipment.
Abstract translation: 用于在光交叉连接交换机和诸如因特网协议（IP）路由器，WDM终端，SONET分插复用器和ATM交换机之类的附加网络设备之间用信号通知信息的方法，装置和系统。 在一个实施例中，通过使用网络上的带外通信信道来实现光交叉连接交换机和附接的网络设备之间的带外信令接口。 在另一个实施例中，分布式信令接口由光交叉连接交换机和所连接的网络设备之间的一个或多个专用信号线路提供。
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公开(公告)号：CA2389589A1
公开(公告)日：2001-05-31
申请号：CA2389589
申请日：2000-11-02
Applicant: XROS INC
Inventor： WARD ROBERT R , RAMASWAMI RAJIV
Abstract: 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 t o 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 differe nt 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 destinatio n optical switching device to switch each of the two similar optical signals t o a destination port card having a selector switch. The selector switch select s 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 protecti on is provided for the optical network.
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公开(公告)号：CA2344487A1
公开(公告)日：2000-04-13
申请号：CA2344487
申请日：1999-09-15
Applicant: XROS INC
Inventor： RAMASWAMI RAJIV , SCHUMAN MARC R , NEUKERMANS ARMAND P , CLARK STEVEN M , BAUGHMAN TYLER L , SLATER TIMOTHY G , REZNICK GREGORY A , CALMES SAM , FOSTER JACK D , FORKER JOHN S , DOWNING JAMES P
Abstract: A fiber optic switch (400) includes a fiber optic switching module (100) tha t receives and fixes ends (104) of optical fibers (106). The module (100) includes numerous reflective light beam deflectors (172) which may be select ed as pairs for coupling a beam of light (108) between a pair of optical fibers (106). The module (100) also produces orientation signals from each deflecto r (172) which indicate its orientation. A portcard (406) included in the switc h (400) supplies drive signals to the module (100) for orienting at least one deflector (172). The portcard (406) also receives the orientation signals produced by that deflector (172) together with coordinates that specify an orientation for the deflector (172). The portcard (406) compares the receive d coordinates with the orientation signals received from the deflector (172) a nd adjusts the drive signals supplied to the module (100) to reduce any difference between the received coordinates and the orientation signals. The switch (400) also employs optical alignment to precisely orient pairs of deflectors (172) coupling a beam of light (108) between optical fibers (106) .
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Patent Agency Ranking
公开(公告)号：CA2401563A1
公开(公告)日：2001-09-27
申请号：CA2401563
申请日：2001-03-16
Applicant: XROS INC
Inventor： RAMASWAMI RAJIV , HEANUE JOHN F , SCHUMAN MARC , TREMAINE BRIAN P , NEUKERMANS ARMAND P
Abstract: One aspect is a method for controllably attenuating the beam of light (108) coupled between incoming and outgoing optical fibers (106) by misaligning mirror surfaces (116a, 116b) included of an optical switching module (100). Misalignment of the mirror surfaces (116a and 116b) causes only a portion of the beam of light (108) propagating along the incoming optical fiber (106), which is less than when the light beam deflectors' mirror surfaces (116) are precisely aligned, to propagate along the outgoing optical fiber (108). Thus , the optical switching module (100) controllably attenuates the beam of light (108) coupled between the incoming and the outgoing optical fibers (106). Another aspect is a variable-optical-attenuator ("VOA") (212) that includes an optically reflective membrane (222) upon which the beam of light (108) impinges. Application of an electrostatic field between an adjacent electrod e (228) and the membrane (222) deforms the membrane (222) thereby attenuating an impinging beam of light (108).
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公开(公告)号：CA2389735A1
公开(公告)日：2001-05-10
申请号：CA2389735
申请日：2000-11-02
Applicant: XROS INC
Inventor： TABASKA STEVEN T , RAMASWAMI RAJIV , WARD ROBERT R
Abstract: In general, an optical cross-connect switching system comprising a switch subsystem, an input/output (I/O) subsystem including a plurality of removabl e, I/O port modules, and a switch control subsystem featuring servo modules. These units collectively operate to provide optical data paths for routing o f light signals without conversion from optical to electrical domains and back to optical. Also, the optical cross-connect switching system is scalable because the I/O port modules, servo modules and even features of the switch subsystem may be removed without disruption in system operation.
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公开(公告)号：CA2389527A1
公开(公告)日：2001-05-10
申请号：CA2389527
申请日：2000-11-02
Applicant: XROS INC
Inventor： WARD ROBERT R , RAMASWAMI RAJIV
Abstract: Methods, apparatus and systems for regenerating, monitoring and bridging optical signals through an optical cross-connect switch to provide increased reliability. A self testing method, apparatus and system for an optical cros s- connect switch. An optical-to-electrical-to-optical converter (O/E/O) is provided in an optical cross-connect switch to provide optical-electrical- optical conversion. I/O port cards having an optical-to-electrical-to-optica l converter are referred to as smart port cards while I/O port cards without a n optical-to-electrical-to-optical converter are referred to as passive port cards. Test port/monitor cards are also provided for testing optical cross- connect switches. Methods, apparatus and systems for performing bridging, te st access, and supporting redundant optical switch fabrics are also disclosed.
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9.发明申请AN OPTICAL CROSS-CONNECT SWITCHING SYSTEM WITH BRIDGING, TEST ACCESS AND REDUNDANCY 审中-公开具有桥接，测试访问和冗余的光学交叉连接切换系统
公开(公告)号：WO0133897A9
公开(公告)日：2002-05-16
申请号：PCT/US0030494
申请日：2000-11-02
Applicant: XROS INC
Inventor： RAMASWAMI RAJIV , CLARK STEVEN , WARD ROBERT R
CPC classification number: H04Q11/0062 , G02B6/43 , H04J14/0293 , H04J14/0297 , H04Q11/0005 , H04Q2011/0015 , H04Q2011/0024 , H04Q2011/0026 , H04Q2011/0041 , H04Q2011/0043 , H04Q2011/0049 , H04Q2011/005 , H04Q2011/0073 , H04Q2011/0081 , H04Q2011/0083
Abstract: In one embodiment, a scalable cross-connect switching system and its corresponding method perform a bridging operation by splitting the incoming light signal into at least a first bridged light signal and a second bridged light signal. The first bridged light signal has a power level equal to or substantially greater than a power level of the second bridged light signal. The disproportionate power levels provide low-loss bridging. Light signals based on these bridged light signals are routed through multiple switch fabrics which provide redundancy in case of failure by switching within the switch fabric. To detect failures, a test access port is configured for monitoring multiple optical paths.
Abstract translation: 在一个实施例中，可扩展交叉连接交换系统及其对应方法通过将入射光信号分成至少第一桥接光信号和第二桥接光信号来执行桥接操作。 第一桥接光信号具有等于或基本上大于第二桥接光信号的功率电平的功率电平。 不相称的权力水平提供低损失桥梁。 基于这些桥接光信号的光信号通过多个交换结构进行路由，这些交换结构在交换结构内切换时在故障的情况下提供冗余。 为了检测到故障，测试接入端口被配置为监视多个光路。
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公开(公告)号：CA2344487C
公开(公告)日：2004-11-30
申请号：CA2344487
申请日：1999-09-15
Applicant: XROS INC
Inventor： FORKER JOHN S , REZNICK GREGORY A , NEUKERMANS ARMAND P , SLATER TIMOTHY G , FOSTER JACK D , SCHUMAN MARC R , CLARK STEVEN M , CALMES SAM , DOWNING JAMES P , RAMASWAMI RAJIV , BAUGHMAN TYLER L
Abstract: A fiber optic switch (400) includes a fiber optic switching module (100) tha t receives and fixes ends (104) of optical fibers (106). The module (100) includes numerous reflective light beam deflectors (172) which may be selected as pairs for coupling a beam of light (108) between a pair of optical fibers (106). The module (100) also produces orientation signals from each deflector (172) which indicate its orientation. A portcard (406) included in the switch (400) supplies drive signals to the module (100) for orienting at least one deflector (172). The portcard (406) also receives the orientation signals produced by that deflector (172) together with coordinates that specify an orientation for the deflector (172). The portcard (406) compares the received coordinate s with the orientation signals received from the deflector (172) and adjusts the drive signals supplied to the module (100) to reduce any difference between the received coordinates and the orientation signals. The switch (400) also employs optical alignment to precisely orient pairs of deflectors (172) coupling a beam of light (108) between optical fibers (106).
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