Optical communications – Multiplex – Optical switching
Reexamination Certificate
2007-08-28
2007-08-28
Chan, Jason (Department: 2613)
Optical communications
Multiplex
Optical switching
C398S182000
Reexamination Certificate
active
10653525
ABSTRACT:
In one embodiment, a router includes a plurality of line cards each operable to receive at least one packet comprising an identifier associated with a destination element external to the router. Each line card includes a look-up table operable to facilitate routing the received packet toward the destination element based at least in part on the identifier. The router further includes a plurality of optical transmitters each associated with one of the line cards and operable to generate at a specified wavelength an optical router signal comprising at least a portion of the packet received by the line card associated with that optical transmitter. The router also includes a star switching fabric operable to receive a plurality of optical router signals from the plurality of optical transmitters and to communicate to each of a plurality of tunable filters a substantially similar set of at least some of the plurality of optical router signals. Each of the plurality of tunable filters is operable to selectively tune to a wavelength of one of the plurality of optical router signals to facilitate communication of the packet associated with that optical router signal toward the destination element.
REFERENCES:
patent: 3986020 (1976-10-01), Kogelnik
patent: 4797879 (1989-01-01), Habbab et al.
patent: 4873681 (1989-10-01), Arthurs et al.
patent: 4941747 (1990-07-01), Dakin
patent: 4970714 (1990-11-01), Chen et al.
patent: 5005167 (1991-04-01), Arthurs et al.
patent: 5063612 (1991-11-01), McKeown
patent: 5093743 (1992-03-01), Eng et al.
patent: 5103340 (1992-04-01), Dono et al.
patent: 5140655 (1992-08-01), Bergmann
patent: 5173794 (1992-12-01), Cheung et al.
patent: 5191626 (1993-03-01), Stern
patent: 5206638 (1993-04-01), McKeown
patent: 5257113 (1993-10-01), Chen et al.
patent: 5301052 (1994-04-01), Audouin et al.
patent: 5343542 (1994-08-01), Kash et al.
patent: 5361254 (1994-11-01), Storck et al.
patent: 5428470 (1995-06-01), Labriola, II
patent: 5452115 (1995-09-01), Tomioka
patent: 5455699 (1995-10-01), Glance et al.
patent: 5455701 (1995-10-01), Eng et al.
patent: 5485297 (1996-01-01), Sotom
patent: 5500858 (1996-03-01), McKeown
patent: 5506712 (1996-04-01), Sasayama et al.
patent: 5515361 (1996-05-01), Li et al.
patent: 5519526 (1996-05-01), Chua et al.
patent: 5521732 (1996-05-01), Nishio
patent: 5539559 (1996-07-01), Cisneros et al.
patent: 5636045 (1997-06-01), Okayama et al.
patent: 5729527 (1998-03-01), Gerstel et al.
patent: 5739945 (1998-04-01), Tayebati
patent: 5781537 (1998-07-01), Ramaswami et al.
patent: 5793746 (1998-08-01), Gerstel et al.
patent: 5796504 (1998-08-01), Sonderegger et al.
patent: 5825949 (1998-10-01), Choy et al.
patent: 5847852 (1998-12-01), Domon et al.
patent: 5864414 (1999-01-01), Barnsley et al.
patent: 5886313 (1999-03-01), Krause et al.
patent: 5889600 (1999-03-01), McGuire
patent: 5912749 (1999-06-01), Harstead et al.
patent: 5915054 (1999-06-01), Ota
patent: 5923644 (1999-07-01), McKeown et al.
patent: 5926299 (1999-07-01), Bayart et al.
patent: 5949801 (1999-09-01), Tayebati
patent: 6025944 (2000-02-01), Mendez et al.
patent: 6025950 (2000-02-01), Tayebati et al.
patent: 6041071 (2000-03-01), Tayebati
patent: 6097533 (2000-08-01), Atlas
patent: 6108112 (2000-08-01), Touma
patent: 6108311 (2000-08-01), Ramaswami et al.
patent: 6147786 (2000-11-01), Pan
patent: 6151144 (2000-11-01), Knox
patent: 6192173 (2001-02-01), Solheim et al.
patent: 6212182 (2001-04-01), McKeown
patent: 6301274 (2001-10-01), Tayebati et al.
patent: 6333803 (2001-12-01), Kurotori et al.
patent: 6356544 (2002-03-01), O'Connor
patent: 6525850 (2003-02-01), Chang et al.
patent: 6532088 (2003-03-01), Dantu et al.
patent: 6826368 (2004-11-01), Koren et al.
patent: 2002/0085543 (2002-07-01), O'Connor
patent: 0 412 220 (1989-08-01), None
patent: 0 439 646 (1990-01-01), None
patent: 0 419 840 (1990-08-01), None
patent: 0 667 690 (1995-01-01), None
patent: 2-278132 (1990-11-01), None
patent: 6-350563 (1994-12-01), None
patent: 8-163048 (1996-06-01), None
patent: 9-326780 (1997-12-01), None
patent: 98/05995 (1998-02-01), None
patent: 99/22496 (1999-05-01), None
patent: 99/56433 (1999-11-01), None
patent: 00/05832 (2000-02-01), None
patent: 01/15368 (2001-03-01), None
patent: 01/18576 (2001-03-01), None
Arthurs et al., “HYPASS: An Optoelectronic Hybrid Packet Switching System,” IEEE Journal on Selected Areas in Communications, vol. 6, No. 9, pp. 1500-1510, Dec. 1988.
Chen et al., “A Media-Access Protocol for Packet-Switched Wavelength Division Multiaccess Methropolitan Area Networks,” IEEE Journal on Selected Areas in Communications, vol. 8, No. 6, pp. 1048-1057, Aug. 1990.
“39·5 Million Way WDM Broadcast Network Employing Two Stages of Erbium-Doped Fibre Amplifiers,” Electronics Letters, vol. 26, No. 22, pp. 1882-1884, Oct. 25, 1990.
“39·81 Gbit/s, 43·8 Million-Way WDM Broadcast Network with 527 km Range,” Electronics Letters, vol. 27, No. 22, pp. 2051-2053, Oct. 24, 1991.
Appleton et al., “Modelling WDM Video Distributive Networks,” The Institution of Electrical Engineers, pp. 1-4, 1993.
Agrawal, “Fiber-Optic Communication Systems,” A Wiley-Interscience Publication, The Institute of Optics University of Rochester NY, pp. 284-360, 1997.
Ford et al., “Fiber-Coupled Variable Attenuator Using a MARS Modulator,” Invited Paper, SPIE, vol. 3226, pp. 86-93, 1997.
Sadot et al., “Tunable Optical Filters for Dense WDM Networks,” IEEE Communications Magazine, pp. 50-55, Dec. 1998.
Carena et al., “OPERA: An Optical Packet Experimental Routing Architecture with Label Swapping Capability,” Journal of Lightwave Technology, vol. 16, No. 12, pp. 2135-2145, Dec. 1998.
Misawa et al. “WDM Knockout Switch with Multi-Output-Port Wavelength-Channel Selectors,” Journal of Lightwave Technology, vol. 16, No. 12, pp. 2212-2219, Dec. 1998.
Sadot et al., “Optical Switching Speed Requirements for Terabit/Sec Packet Over WDM Networks,” ECOC, 1999.
Elhanany et al., “A Novel Tbit/sec Switch Architecture for ATM/WDM High-Speed Networks,” IEEE/IEICE ATM Workshop, Japan, pp. 97-101, 1999.
Elhanany et al., “Tbit/s switching scheme for ATM/WDM networks,” Electronics Letters, vol. 35, No. 1, 2 pages, Jan. 7, 1999.
“A New Architecture for Switch and Router Design,” PMC-Sierra, Inc., pp. 1-8, Dec. 22, 1999.
Tsukada et al., “WDM/SCM Broadcast-and-select Architecture for Streaming-media,” IEEE, pp. 358-359, 2000.
Pesach et al., “Free-space optical cross-connect switch by use of electroholography,” Applied Optics, vol. 39, No. 5, pp. 746-758, Feb. 10, 2000.
Sadot et al., “Optical Switching Speed Requirements for Terabit/Second Packet Over WDM Networks,” IEEE Photonics Technology Letters, vol. 12, No. 4, pp. 440-442, Apr. 2000.
Goossen, “MEMS-Based Variable Optical Interference Device,” IEEE, Invited MB1, pp. 17-18, Aug. 2000.
Shrikhande et al., “HORNET: A Packet-Over-WDM Multiple Access Metropolitan Area Ring Network,” IEEE Journal on Selected Areas in Communications, vol. 18, No. 10, pp. 2004-2016, Oct. 2000.
McKeown, “A quick tutorial on IP Router design,” Optics and Routing Seminar, pp. 1-42, Oct. 10, 2000.
McKeown, “How might optics be used in IP routers and the Internet?,” Optics and Routing Seminar, pp. 1-36, Oct. 24, 2000.
Chao et al., “An Optical Interconnection Network for Terabit IP Routers,” Journal of Lightwave Technology, vol. 18, No. 12, pp. 2095-2112, Dec. 2000.
Elhanany et al., “A Prioritized Packet Scheduling Architecture for Provision of Quality-of-Service in Tbit/sec WDM Networks,” IEEE, pp. 695-700, 2000.
Plastow et al., “Tunable lasers key to data-network migration,” Lightwave, www.light-wave.com, pp. 148-152, Mar. 2001.
Dhar, “Seamless Optical Scaling: Enabling a Dynamic Network,” Fiberoptic Product News, Aug. 2001.
Dhar et al., “Tunab
Chan Jason
Cheetah Omni, LLC
Lee David
LandOfFree
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