Inventor · disambiguated record
Nicholas J. Frigo
Also filed as: FRIGO NICHOLAS · FRIGO NICHOLAS J
86 granted patents·9 pending applications·2,088 citations·filing 1985–2018
99Inventor score
Files withAT & T CORP44LUCENT TECHNOLOGIES INC15AT & T IP II LP13FRIGO NICHOLAS J5BORODITSKY MIKHAIL4
Top patents by PatentIndex Score
95 records- 0199US7466919B1System for flexible multiple broadcast service delivery over a WDM passive optical network based on RF block-conversion, of RF service bands within wavelength bandsAT & T CORP·Filed 2006·Granted Dec 16, 2008·56 cites·3 claims
- 0298US5694234AWavelength division multiplexing passive optical network including broadcast overlayLUCENT TECHNOLOGIES INC·Filed 1995·Granted Dec 2, 1997·163 cites·20 claims
- 0397US6445485B1Micro-machine polarization-state controllerAT & T CORP·Filed 2001·Granted Sep 3, 2002·141 cites·31 claims
- 0496US5907417APassive optical network with diagnostic loop-backLUCENT TECHNOLOGIES INC·Filed 1997·Granted May 25, 1999·149 cites·7 claims
- 0594US6498673B1Micro-machined tunable delay lineAT & T CORP·Filed 2001·Granted Dec 24, 2002·72 cites·14 claims
- 0693US9534982B2Method, apparatus and system for minimally intrusive fiber identificationAT & T IP II LP·Filed 2015·Granted Jan 3, 2017·4 cites·20 claims
- 0793US9243973B2Method, apparatus and system for minimally intrusive fiber identificationAT & T IP II LP·Filed 2014·Granted Jan 26, 2016·5 cites·19 claims
- 0893US5790287AOptical communication system with improved maintenance capabilitiesLUCENT TECHNOLOGIES INC·Filed 1996·Granted Aug 4, 1998·94 cites·37 claims
- 0992US7283688B2Method, apparatus and system for minimally intrusive fiber identificationAT & T CORP·Filed 2005·Granted Oct 16, 2007·16 cites·29 claims
- 1092US6222654B1Optical node system for a ring architecture and method thereofLUCENT TECHNOLOGIES INC·Filed 1997·Granted Apr 24, 2001·92 cites·21 claims
- 1192US5815295AOptical communication system with improved maintenance capabilitiesLUCENT TECHNOLOGIES INC·Filed 1996·Granted Sep 29, 1998·91 cites·19 claims
- 1292US5680234APassive optical network with bi-directional optical spectral slicing and loop-backLUCENT TECHNOLOGIES INC·Filed 1994·Granted Oct 21, 1997·97 cites·32 claims
- 1391US7042559B1Fault location apparatus and procedures in CWDM business applications using wavelength selective OTDRAT & T CORP·Filed 2003·Granted May 9, 2006·39 cites·14 claims
- 1490US7256876B1Estimating optical transmission system penalties induced by polarization mode dispersion (PMD)AT & T CORP·Filed 2005·Granted Aug 14, 2007·14 cites·20 claims
- 1588US7414711B1Estimating optical transmission system penalties induced by polarization mode dispersion (PMD)AT & T CORP·Filed 2007·Granted Aug 19, 2008·11 cites·20 claims
- 1688US7366417B2Delivering multicast services on a wavelength division multiplexed network using a configurable four-port wavelength selective crossbar switchAT & T CORP·Filed 2006·Granted Apr 29, 2008·12 cites·4 claims
- 1786US7292322B2Method for increasing accuracy of measurement of mean polarization mode dispersionAT & T CORP·Filed 2003·Granted Nov 6, 2007·24 cites·14 claims
- 1886US7006767B1System for transparent node for WDM shared “virtual ring” networksAT & T CORP·Filed 2001·Granted Feb 28, 2006·18 cites·18 claims
- 1985US10168247B2Method, apparatus and system for minimally intrusive fiber identificationAT & T IP II LP·Filed 2017·Granted Jan 1, 2019·2 cites·20 claims
- 2085US9797807B2Method, apparatus and system for minimally intrusive fiber identificationAT & T IP II LP·Filed 2016·Granted Oct 24, 2017·1 cites·20 claims
- 2185US8023774B2Method, apparatus and system for minimally intrusive fiber identificationAT & T IP II LP·Filed 2007·Granted Sep 20, 2011·8 cites·1 claims
- 2285US6925259B2MAC protocol for optical packet-switched ring networkAT & T CORP·Filed 2001·Granted Aug 2, 2005·16 cites·2 claims
- 2384US7200303B2Method for fabricating optical devices by assembling multiple wafers containing planar optical waveguidesFEUER MARK D·Filed 2005·Granted Apr 3, 2007·5 cites·8 claims
- 2484US5708753AMethod of recovering from a fiber-cable cut using random splicing reconnectionLUCENT TECHNOLOGIES INC·Filed 1996·Granted Jan 13, 1998·77 cites·18 claims
- 2583US7587142B1Method for estimating the polarization mode dispersion compliant capacity fraction of the total optical frequency transmission window of a transport systemAT & T IP II LP·Filed 2005·Granted Sep 8, 2009·10 cites·4 claims
- 2683US7450847B1System for transparent node for WDM shared “virtual ring” networksFRIGO NICHOLAS J·Filed 2007·Granted Nov 11, 2008·7 cites·19 claims
- 2783US7085495B2System for flexible multiple broadcast service delivery over a WDM passive optical network based on RF block-conversion of RF service bands within wavelength bandsAT & T CORP·Filed 2001·Granted Aug 1, 2006·13 cites·14 claims
- 2883US5504606ALow power optical network unitAT & T CORP·Filed 1994·Granted Apr 2, 1996·75 cites·19 claims
- 2982US7773207B1Estimating optical transmission system penalties induced by polarization mode dispersion (PMD)AT & T CORP·Filed 2008·Granted Aug 10, 2010·9 cites·8 claims
- 3082US7454139B2High-capacity packet-switched ring networkAT & T CORP·Filed 2006·Granted Nov 18, 2008·5 cites·7 claims
- 3182US7450846B1Method for operating transparent node for WDM shared ‘virtual ring’ networksFRIGO NICHOLAS J·Filed 2006·Granted Nov 11, 2008·6 cites·1 claims
- 3282US7158722B1Method for operating transparent node for WDM shared “virtual ring” networksAT & T CORP·Filed 2001·Granted Jan 2, 2007·12 cites·16 claims
- 3382US5625733AArrangement for interconnecting an optical fiber to an optical componentLUCENT TECHNOLOGIES INC·Filed 1995·Granted Apr 29, 1997·58 cites·21 claims
- 3481US7027733B2Delivering multicast services on a wavelength division multiplexed network using a configurable four-port wavelength selective crossbar switchAT & T CORP·Filed 2001·Granted Apr 11, 2006·16 cites·17 claims
- 3581US6697574B2Multiple input waveguide grating router for broadcast and multicast servicesAT & T CORP·Filed 2001·Granted Feb 24, 2004·16 cites·2 claims
- 3680US7286761B2Method of flexible multiple broadcast service delivery over a WDM passive optical network based on RF Block-conversion of RF service bands within wavelength bandsAT & T CORP·Filed 2001·Granted Oct 23, 2007·11 cites·7 claims
- 3779US9768876B1Method of suppressing polarization-dependent loss in polarization-modulated photonic linksUS NAVY·Filed 2016·Granted Sep 19, 2017·4 cites·12 claims
- 3878US8811780B2Method, apparatus and system for minimally intrusive fiber identificationFRIGO NICHOLAS J·Filed 2011·Granted Aug 19, 2014·2 cites·19 claims
- 3978US7869716B1Method and apparatus for broadband mitigation of polarization mode dispersionAT & T IP II LP·Filed 2005·Granted Jan 11, 2011·6 cites·15 claims
- 4078US6871020B1Power spectrum monitoring and management in a wavelength division multiplexed networkAT & T CORP·Filed 2001·Granted Mar 22, 2005·14 cites·3 claims
- 4178US6751372B2Four-port wavelength-selective crossbar switches (4WCS) using reciprocal WDM MUX-DEMUX and optical circulator combinationAT & T CORP·Filed 2001·Granted Jun 15, 2004·16 cites·6 claims
- 4278US6466342B1Optical transmission system and method using an optical carrier drop/add transceiverAT & T CORP·Filed 1999·Granted Oct 15, 2002·53 cites·15 claims
- 4377US7085494B2High-capacity packet-switched ring networkAT & T CORP·Filed 2001·Granted Aug 1, 2006·9 cites·4 claims
- 4477US5574584AWavelength division multiplexing passive optical network with bi-directional optical spectral slicingLUCENT TECHNOLOGIES INC·Filed 1996·Granted Nov 12, 1996·43 cites·19 claims
- 4576US8532485B2System and method for operating transparent node for WDM shared “virtual ring” networksFRIGO NICHOLAS J·Filed 2011·Granted Sep 10, 2013·2 cites·17 claims
- 4676US8068733B2Method for operating transparent node for WDM shared “virtual ring” networksFRIGO NICHOLAS J·Filed 2010·Granted Nov 29, 2011·2 cites·16 claims
- 4776US7725028B1Method for flexible multiple broadcast service delivery over a WDM passive optical network based on RF block-conversion of RF service bands with wavelength bandsAT & T IP I LP·Filed 2007·Granted May 25, 2010·5 cites·7 claims
- 4875US7860393B1System for flexible multiple broadcast service delivery over a WDM passive optical network based on RF block-conversion, of RF service bands within wavelength bandsAT & T IP I LP·Filed 2008·Granted Dec 28, 2010·3 cites·3 claims
- 4975US7095912B1Technique for mitigation of polarization mode dispersion in fiber optic transmission linksAT & T CORP·Filed 2005·Granted Aug 22, 2006·5 cites·6 claims
- 5075US6381047B1Passive optical network using a fabry-perot laser as a multiwavelength sourceAT & T CORP·Filed 1998·Granted Apr 30, 2002·41 cites·17 claims
Showing the top 50 of 95 patent records by PatentIndex Score.
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