Assignee
SYCAMORE NETWORKS INC
US·39 granted patents·8 pending applications·1,312 citations·filing 1999–2012
Top patents by PatentIndex Score
47 records- 0195US6433904B1Method and apparatus for improving transmission performance over wavelength division multiplexed optical communication links using forward error correction codingSYCAMORE NETWORKS INC·Filed 1999·Granted Aug 13, 2002·176 cites·8 claims
- 0294US6681248B1Method for port connectivity discovery in transparent high bandwidth networksSYCAMORE NETWORKS INC·Filed 2000·Granted Jan 20, 2004·79 cites·8 claims
- 0393US6396051B1High resolution optical performance monitor for DWDM systemSYCAMORE NETWORKS INC·Filed 2000·Granted May 28, 2002·62 cites·28 claims
- 0490US6580531B1Method and apparatus for in circuit biasing and testing of a modulated laser and optical receiver in a wavelength division multiplexing optical transceiver boardSYCAMORE NETWORKS INC·Filed 1999·Granted Jun 17, 2003·130 cites·11 claims
- 0589US6912606B2Generic serial bus architectureSYCAMORE NETWORKS INC·Filed 2001·Granted Jun 28, 2005·71 cites·27 claims
- 0689US6445850B1Method and apparatus for per-band compensation with gap-free band structure for high speed DWDM transmissionSYCAMORE NETWORKS INC·Filed 2001·Granted Sep 3, 2002·36 cites·32 claims
- 0788US6430201B1Method and apparatus for transporting gigabit ethernet and fiber channel signals in wavelength-division multiplexed systemsSYCAMORE NETWORKS INC·Filed 1999·Granted Aug 6, 2002·130 cites·21 claims
- 0886US6823470B2Method and apparatus for correcting dataSYCAMORE NETWORKS INC·Filed 2001·Granted Nov 23, 2004·56 cites·46 claims
- 0986US6587630B2Optical backplane cartridgeSYCAMORE NETWORKS INC·Filed 2001·Granted Jul 1, 2003·62 cites·17 claims
- 1086US6553175B2Variable optical attenuatorSYCAMORE NETWORKS INC·Filed 2001·Granted Apr 22, 2003·35 cites·24 claims
- 1186US6529315B2Optical amplifier providing dispersion compensationSYCAMORE NETWORKS INC·Filed 2001·Granted Mar 4, 2003·28 cites·74 claims
- 1285US9143575B2Distributed content caching solution for a mobile wireless networkSYCAMORE NETWORKS INC·Filed 2012·Granted Sep 22, 2015·9 cites·17 claims
- 1384US6807001B1Auto shutdown for distributed raman amplifiers on optical communication systemsSYCAMORE NETWORKS INC·Filed 2002·Granted Oct 19, 2004·42 cites·5 claims
- 1483US6862564B1Network emulatorSYCAMORE NETWORKS INC·Filed 2000·Granted Mar 1, 2005·54 cites·21 claims
- 1581US7012887B2Method for restoring diversely routed circuitsSYCAMORE NETWORKS INC·Filed 2001·Granted Mar 14, 2006·21 cites·31 claims
- 1681US6839871B2Method for transparent multiplexing of SONET/ SDH streamsSYCAMORE NETWORKS INC·Filed 2001·Granted Jan 4, 2005·19 cites·14 claims
- 1781US6826372B1Methods and apparatus for dynamic threshold setting for an optically amplified receiverSYCAMORE NETWORKS INC·Filed 2000·Granted Nov 30, 2004·39 cites·2 claims
- 1878US6433903B1Optical management channel for wavelength division multiplexed systemsSYCAMORE NETWORKS INC·Filed 1999·Granted Aug 13, 2002·49 cites·12 claims
- 1975US6400479B1Optical power balancer for optical amplified WDM networksSYCAMORE NETWORKS INC·Filed 1999·Granted Jun 4, 2002·45 cites·14 claims
- 2074US6754208B2Traffic spreading to reduce blocking in a groomed CLOS communication switchSYCAMORE NETWORKS INC·Filed 2001·Granted Jun 22, 2004·14 cites·25 claims
- 2167US6741761B2Method for achieving improved transmission performance over fiber using a Mach-Zehnder modulatorSYCAMORE NETWORKS INC·Filed 2001·Granted May 25, 2004·12 cites·24 claims
- 2267US6456427B1Systems and methods for reducing a signal spectrum tiltSYCAMORE NETWORKS INC·Filed 2001·Granted Sep 24, 2002·12 cites·4 claims
- 2367US6456409B2Method and apparatus for extending fiber transmission distance with multiple pre-emphases in optically amplified DWDM systemSYCAMORE NETWORKS INC·Filed 2001·Granted Sep 24, 2002·8 cites·23 claims
- 2467US6388805B1Two fiber support with single optical amplifierSYCAMORE NETWORKS INC·Filed 2001·Granted May 14, 2002·8 cites·28 claims
- 2566US6496305B2Two fiber support with single optical amplifierSYCAMORE NETWORKS INC·Filed 2001·Granted Dec 17, 2002·8 cites·15 claims
- 2665US6839866B2System and method for the use of reset logic in high availability systemsSYCAMORE NETWORKS INC·Filed 2001·Granted Jan 4, 2005·19 cites·25 claims
- 2765US6738262B2Port filler baffleSYCAMORE NETWORKS INC·Filed 2001·Granted May 18, 2004·11 cites·33 claims
- 2864US6952405B2Coding scheme using a transition indicator for signal transmission in optical communications networksSYCAMORE NETWORKS INC·Filed 2001·Granted Oct 4, 2005·11 cites·20 claims
- 2959US7826345B2Network span protection using span identifiersSYCAMORE NETWORKS INC·Filed 2004·Granted Nov 2, 2010·4 cites·4 claims
- 3057US6504631B1System and method providing control channel for wavelength-division multiplexed networkSYCAMORE NETWORKS INC·Filed 1999·Granted Jan 7, 2003·21 cites·16 claims
- 3155US6661963B2System and method for calibrating and operating a semiconductor variable optical attenuatorSYCAMORE NETWORKS INC·Filed 2001·Granted Dec 9, 2003·8 cites·54 claims
- 3254US6961525B2Method for channel balanceSYCAMORE NETWORKS INC·Filed 2001·Granted Nov 1, 2005·2 cites·16 claims
- 3354US6735357B2Monitoring and control of all-optical cross connect fabrics using multiple laser sourcesSYCAMORE NETWORKS INC·Filed 2001·Granted May 11, 2004·4 cites·25 claims
- 3449US6483637B2System and method for per-band optical amplificationSYCAMORE NETWORKS INC·Filed 2001·Granted Nov 19, 2002·1 cites·26 claims
- 3548US6614569B2System and method for narrow channel spaced dense wavelength division multiplexing/demultiplexingSYCAMORE NETWORKS INC·Filed 2001·Granted Sep 2, 2003·2 cites·20 claims
- 3648US6557101B1Methods and apparatus for upgrading programmable control logic without disturbing network traffic flowing through functional elements controlled by the control logicSYCAMORE NETWORKS INC·Filed 1999·Granted Apr 29, 2003·22 cites·28 claims
- 3746US6549312B2Method for designing optical filter cardsSYCAMORE NETWORKS INC·Filed 2001·Granted Apr 15, 2003·2 cites·23 claims
- 3844US2003191883A1Interface for upgrading serial backplane application from ethernet to gigabit ethernetSYCAMORE NETWORKS INC·Filed 2002·Application pending·0 cites
- 3944US2010057926A1Digital custom data content injection mechanism for a content delivery networkSYCAMORE NETWORKS INC·Filed 2008·Application pending·0 cites
- 4043US2003095500A1Methods for distributed shared mesh restoration for optical networksSYCAMORE NETWORKS INC·Filed 2001·Application pending·0 cites
- 4142US2003219198A1Routing in optical networks considering transmission impairmentsSYCAMORE NETWORKS INC·Filed 2002·Application pending·0 cites
- 4241US2002176450A1System and methods for selectively transmitting ethernet traffic over SONET/SDH optical networkSYCAMORE NETWORKS INC·Filed 2001·Application pending·0 cites
- 4339US7050561B2Restoration scheme for mesh-based switching networksSYCAMORE NETWORKS INC·Filed 2001·Granted May 23, 2006·0 cites·21 claims
- 4439US6859468B2Method and system for mode stabilization of VCSELS using increased bias currentSYCAMORE NETWORKS INC·Filed 2001·Granted Feb 22, 2005·0 cites·22 claims
- 4539US2004208585A1Systems and methods for minimizing signal power and providing reduced Raman pump depletion for WDM optical systemSYCAMORE NETWORKS INC·Filed 2002·Application pending·0 cites
- 4638US2004208577A1Methods for in-service wavelength upgrade and system performance optimization in WDM optical networksSYCAMORE NETWORKS INC·Filed 2002·Application pending·0 cites
- 4737US2002041410A1Bi-directional wavelength switched ring optical protection switching wavelength assignment algorithmSYCAMORE NETWORKS INC·Filed 2001·Application pending·0 cites
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