公开(公告)号：EP1228661A2

公开(公告)日：2002-08-07

申请号：EP00991853.3

申请日：2000-11-02

Applicant: Xros, Inc.

Inventor： RAMASWAMI, Rajiv

IPC: 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.

公开(公告)号：EP1254479A1

公开(公告)日：2002-11-06

申请号：EP01903124.4

申请日：2001-01-18

Applicant: XROS, Inc., Nortel Networks

Inventor： SLATER, Timothy, G.

IPC: H01L21/20 ,  H01L21/762

CPC classification number: H01L21/2007 ,  H01L21/76251

Abstract: A bonded wafer fabrication mechanism for a micro-mirror structure provides for oxidizing a device wafer instead of a handle wafer or splitting thermal oxidation processing between the device wafer and the handle wafer prior to etching. The flatness of mirrors in micro-mirror structures fabricated according to such a mechanism is substantially improved.

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

Applicant: Xros, Inc.

Inventor： RAMASWAMI, Rajiv ,  WARD, Robert, R.

IPC: H04J3/00

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

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 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：EP1151343A1

公开(公告)日：2001-11-07

申请号：EP00980917.9

申请日：2000-12-01

Applicant: XROS, Inc., Nortel Networks

Inventor： NEUKERMANS, Armand

IPC: G02B26/02

CPC classification number: G02B6/3582 ,  G02B6/3512 ,  G02B6/352 ,  G02B6/3548 ,  G02B6/3556 ,  G02B6/357 ,  G02B6/3572 ,  G02B6/358 ,  G02B6/3584 ,  G02B6/3588 ,  G02B6/359 ,  G02B26/0833 ,  G02B26/085

Abstract: A compact arrangement of multiple 1xN optical switches in a single optical switch package is described.

公开(公告)号：EP1119792A2

公开(公告)日：2001-08-01

申请号：EP99945469.7

申请日：1999-09-02

Applicant: Xros, Inc.

Inventor： SLATER, Timothy, G. ,  NEUKERMANS, Armand, P.

IPC: G02B26/08 ,  G01P15/08 ,  G01C19/00

CPC classification number: H04Q11/0005 ,  B81B3/0051 ,  B81B2201/042 ,  B81B2201/045 ,  B81B2203/058 ,  G02B6/32 ,  G02B6/327 ,  G02B6/3518 ,  G02B6/357 ,  G02B6/3584 ,  G02B26/0833 ,  G02B26/0841 ,  G02B26/085 ,  H04Q2011/003 ,  H04Q2011/0039 ,  H04Q2011/0043

Abstract: A monolithically fabricated micromachined structure couples a reference frame (56) to a dynamic plate (58). Performance of torsional oscillators or scanners benefits greatly by coupling the frame (56) to the plate (58) with folded torsional flexure hinges (96) rather than torsion bars. A folded torsion flexure hinge (96) for supporting the plate (58) from the frame (56) is made up of three basic hinge segments (102a, 102b, 102c). Each basic hinge segment (102a, 102b, 102c) has a longitudinal axis (98) which is not oriented perpendicular to the rotation axis (62) of the plate (58). An intermediaire region (104) of the folded torsional flexure hinge (96) couples together immediately adjacent ends (106) of the basic hinge segments (102a, 102b, 102c). A basic hinge segment (102b) may include a torsion sensor (108) for measuring angular rotation of the plate (58) about axis (62) with respect to the frame (56).

公开(公告)号：EP0950227A1

公开(公告)日：1999-10-20

申请号：EP97922548.0

申请日：1997-05-01

Applicant: Xros,Inc.

Inventor： NEUKERMANS, Armand, P. ,  SLATER, Timothy, G. ,  DOWNING, Philip

IPC: G02B26 ,  G06K9

CPC classification number: G06K9/00046 ,  G02B26/085 ,  G06K9/00013 ,  G06K9/00053 ,  G06K9/2009

Abstract: A beam (38) of electromagnetic radiation deflected by a moving mirror plate (56) of a micromachined scanner (54) produces a two dimensional ('2D') raster (132) on a scanned surface (28) of a block (34). The block (34) is transparent to electro-magnetic radiation of pre-established wavelengths. A radiation inlet-face (36) of the block (34) admits the beam (38) that then inpinges on the scanned surface (28) to exit the block (34) through a radiation outlet-face (42). After exiting the block (34), the beam (38) inpinges upon a radiation detector (142). Total internal reflection ('TIR') of the beam (38) from the scanned surface (28) at fingerprint valleys and frustration of TIR at fingerprint ridges causes the radiation detector (142) to produce a time-varying electrical signal that represents the fingerprint. The scanned surface (28) may be formed by a patch (302) of resilient material, that may be tinted to be transparent only at the pre-established wavelength of the electro-magnetic radiation.

公开(公告)号：EP0870212A4

公开(公告)日：1999-10-06

申请号：EP96945027

申请日：1996-12-24

Applicant: XROS INC

Inventor： NEUKERMANS ARMAND P

IPC: G02B26/08 ,  G02B26/10 ,  H04N1/00 ,  H04N1/113 ,  H04N1/12 ,  H04N1/193

CPC classification number: H04N1/1135 ,  G02B26/0833 ,  G02B26/0841 ,  G02B26/085 ,  G02B26/105 ,  H04N1/00204 ,  H04N1/00236 ,  H04N1/00238 ,  H04N1/0283 ,  H04N1/12 ,  H04N1/193 ,  H04N2201/0063

Abstract: A compact medium scanner (100) scans a surface (132) of a medium (134) with a beam of light (106). A medium transport mechanism (202, 206) advances the surface along a medium transport path through a scanning station. A light source (104) produces a collimated beam of light (106) that impinges upon a mirror plate (112) of a micromachined torsional scanner (108). A pair of coaxially aligned torsion bars (304) support the mirror plate (112) within the torsional scanner (108). A mirror-surface drive means (306, 312) rotates the mirror plate (112) about the torsion bars (304). A single reciprocation of the mirror plate (112) by the drive means (306, 312) deflects the beam of light (106) over a fan-shaped region having a virtually fixed vertex (128) on the mirror plate (112). Scanner optics (116, 122) direct the fan-shaped region beam of light (106) onto the surface (132) of the medium (134) then present in the scanning station to thereby scan across the medium (134) with the beam of light (106).

公开(公告)号：EP1281095A4

公开(公告)日：2005-07-06

申请号：EP01920523

申请日：2001-03-16

Applicant: XROS INC

Inventor： NEUKERMANS ARMAND P ,  RAMASWAMI RAJIV ,  HEANUE JOHN F ,  TREMAINE BRIAN P ,  SCHUMAN MARC

IPC: G02B6/26 ,  G02B6/35 ,  G02B26/08

CPC classification number: G02B6/359 ,  G02B6/266 ,  G02B6/352 ,  G02B6/3556 ,  G02B6/356 ,  G02B6/357 ,  G02B6/3588 ,  G02B6/3594

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 electrode (228) and the membrane (222) deforms the membrane (222) thereby attenuating an impinging beam of light (108).

公开(公告)号：EP1228588A2

公开(公告)日：2002-08-07

申请号：EP00990905.2

申请日：2000-11-02

Applicant: Xros, Inc.

Inventor： RAMASWAMI, Rajiv ,  WARD, Robert, R.

IPC: H04B10/00

CPC classification number: H04Q11/0062 ,  G02B6/43 ,  H04J14/0293 ,  H04J14/0297 ,  H04Q11/0005 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0024 ,  H04Q2011/0026 ,  H04Q2011/0035 ,  H04Q2011/0041 ,  H04Q2011/0043 ,  H04Q2011/005 ,  H04Q2011/0058 ,  H04Q2011/0073 ,  H04Q2011/0081 ,  H04Q2011/0083 ,  H04Q2011/0088

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.

公开(公告)号：EP1121616A2

公开(公告)日：2001-08-08

申请号：EP99970167.5

申请日：1999-09-15

Applicant: Xros, Inc.

Inventor： NEUKERMANS, Armand, P. ,  SLATER, Timothy, G. ,  BAUGHMAN, Tyler, L. ,  DOWNING, James, P. ,  FORKER, John, S. ,  REZNICK, Gregory, A. ,  CALMES, Sam ,  CLARK, Steven, M. ,  FOSTER, Jack, D. ,  SCHUMAN, Marc, R. ,  RAMASWAMI, Rajiv

IPC: G02B6/35

CPC classification number: G02B6/3518 ,  G02B6/32 ,  G02B6/327 ,  G02B6/352 ,  G02B6/3556 ,  G02B6/357 ,  G02B6/3584 ,  G02B6/3588 ,  G02B6/3636 ,  G02B6/3656 ,  G02B26/0833 ,  G02B26/0841 ,  G02B26/085 ,  H04Q11/0005 ,  H04Q2011/003 ,  H04Q2011/0039 ,  H04Q2011/0043

Abstract: A fiber optic switch (400) includes a fiber optic switching module (100) that 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 coordinates 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).