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    1+1 FAULT PROTECTION IN A NETWORK OF OPTICAL CROSS-CONNECT SWITCHING SYSTEMS
    11.
    发明专利
    1+1 FAULT PROTECTION IN A NETWORK OF OPTICAL CROSS-CONNECT SWITCHING SYSTEMS 未知

    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

    IPC: G02B6/43 ,  H04Q11/00

    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.

    FLEXIBLE, MODULAR, COMPACT FIBER OPTIC SWITCH
    12.
    发明专利
    FLEXIBLE, MODULAR, COMPACT FIBER OPTIC SWITCH 未知

    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

    IPC: B81B3/00 ,  G02B6/32 ,  G02B6/35 ,  G02B6/36 ,  G02B26/08 ,  H04B10/02 ,  H04Q11/00

    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) .

    METHOD AND APPARATUS FOR SIGNALING BETWEEN AN OPTICAL CROSS-CONNECT SWITCH AND ATTACHED NETWORK EQUIPMENT
    14.
    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

    IPC: G02B6/43 ,  H04Q11/00

    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。

    Method and apparatus for optical to electrical to optical conversion in an optical cross-connect switch
    19.
    发明专利
    Method and apparatus for optical to electrical to optical conversion in an optical cross-connect switch 未知

    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

    IPC: G02B6/43 ,  H04Q11/00 ,  H04B10/00

    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.

    FLEXIBLE, MODULAR, COMPACT FIBER OPTIC SWITCH IMPROVEMENTS
    20.
    发明专利
    FLEXIBLE, MODULAR, COMPACT FIBER OPTIC SWITCH IMPROVEMENTS 未知

    公开(公告)号：CA2379822A1

    公开(公告)日：2001-02-01

    申请号：CA2379822

    申请日：2000-07-21

    Applicant: XROS INC

    Inventor： NEUKERMANS ARMAND P ,  CLARK STEVEN M ,  SLATER TIMOTHY G ,  SCHUMAN MARC R ,  FOSTER JACK D ,  CALMES SAM

    IPC: G02B6/26 ,  B81B3/00 ,  G02B6/32 ,  G02B6/35 ,  G02B6/36 ,  G02B26/08 ,  H04B10/02 ,  H04Q11/00

    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) arranged in a V-sha pe 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) 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 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 optic al alignment to precisely orient pairs deflectors (172) coupling a beam of ligh t (108) between optical fibers (106).

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