Inventor · disambiguated record
Cedric Fung Lam
Also filed as: LAM CEDRIC · LAM CEDRIC F · LAM CEDRIC FUNG
68 granted patents·8 pending applications·807 citations·filing 2000–2024
99Inventor score
Top patents by PatentIndex Score
76 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
- 0298US8320760B1Passive optical network with asymmetric modulation schemeLAM CEDRIC F·Filed 2011·Granted Nov 27, 2012·65 cites·22 claims
- 0397US10103513B1Common cathode laser driving circuitGOOGLE INC·Filed 2017·Granted Oct 16, 2018·36 cites·21 claims
- 0497US8655167B1Fiber diagnosis system for point-to-point optical access networksLAM CEDRIC F·Filed 2011·Granted Feb 18, 2014·64 cites·16 claims
- 0596US8953942B1Hybrid WDM-TDM passive optical networkLAM CEDRIC F·Filed 2012·Granted Feb 10, 2015·24 cites·19 claims
- 0696US8693866B1Fiber diagnosis system for WDM optical access networksLAM CEDRIC F·Filed 2012·Granted Apr 8, 2014·65 cites·21 claims
- 0796US8472805B2Tunable multi-wavelength optical transmitter and transceiver for optical communications based on wavelength division multiplexingLAM CEDRIC F·Filed 2010·Granted Jun 25, 2013·23 cites·53 claims
- 0895US9240855B1Fiber diagnosis system for point-to-point optical access networksGOOGLE INC·Filed 2013·Granted Jan 19, 2016·25 cites·6 claims
- 0995US8588571B1Installation of fiber-to-the-premise using optical demarcation devicesLAM CEDRIC F·Filed 2010·Granted Nov 19, 2013·26 cites·21 claims
- 1094US8457165B2Tunable multi-wavelength semiconductor laser array for optical communications based on wavelength division multiplexingLIU HONG·Filed 2010·Granted Jun 4, 2013·19 cites·28 claims
- 1193US9749080B2TWDM passive network with extended reach and capacityGOOGLE INC·Filed 2015·Granted Aug 29, 2017·10 cites·12 claims
- 1293US9608758B1Low cost gain clamped EDFA for TWDM passive optical network applicationGOOGLE INC·Filed 2015·Granted Mar 28, 2017·11 cites·30 claims
- 1393US8315266B1Extending a local area networkLAM CEDRIC FUNG·Filed 2012·Granted Nov 20, 2012·57 cites·8 claims
- 1493US6661976B1Method and system for single-sideband optical signal generation and transmissionAT & T CORP·Filed 2000·Granted Dec 9, 2003·66 cites·10 claims
- 1590US11689292B2Polarization-folding coherent optical technology for short reach optical communicationGOOGLE LLC·Filed 2021·Granted Jun 27, 2023·2 cites·28 claims
- 1689US10461498B2Common cathode laser driving circuitGOOGLE LLC·Filed 2018·Granted Oct 29, 2019·6 cites·27 claims
- 1789US9001852B1Wavelength tunable laserGOOGLE INC·Filed 2013·Granted Apr 7, 2015·9 cites·16 claims
- 1889US8781322B2Migratable wavelength division multiplexing passive optical networkLAM CEDRIC F·Filed 2011·Granted Jul 15, 2014·9 cites·25 claims
- 1988US9438005B1Calibration of a tunable DBR laserGOOGLE INC·Filed 2014·Granted Sep 6, 2016·8 cites·27 claims
- 2088US7366417B2Delivering 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
- 2186US8831051B2Tunable multi-wavelength semiconductor laser array for optical communications based on wavelength division multiplexingGOOGLE INC·Filed 2013·Granted Sep 9, 2014·6 cites·20 claims
- 2286US8792788B2Tunable multi-wavelength optical transmitter and transceiver for optical communications based on wavelength division multiplexingGOOGLE INC·Filed 2013·Granted Jul 29, 2014·6 cites·19 claims
- 2386US8676004B1Optical circuit switch optimization using optical circulatorsURATA RYOHEI·Filed 2012·Granted Mar 18, 2014·11 cites·21 claims
- 2485US10153612B1Tunable laser bias circuitGOOGLE LLC·Filed 2017·Granted Dec 11, 2018·6 cites·26 claims
- 2585US7127181B2System for mitigating the effects of fiber dispersion by separate detection of two transmitted sidebandsAT & T CORP·Filed 2005·Granted Oct 24, 2006·10 cites·13 claims
- 2685US6959154B1Diversity receiver for mitigating the effects of fiber dispersion by separate detection of the two transmitted sidebandsAT & T CORP·Filed 2000·Granted Oct 25, 2005·25 cites·26 claims
- 2784US8917992B1Optical network remote node for WDM-PON and TDM-PONGOOGLE INC·Filed 2013·Granted Dec 23, 2014·6 cites·24 claims
- 2883US11641248B2System, apparatus, and architecture for migrating an optical communication networkGOOGLE LLC·Filed 2021·Granted May 2, 2023·1 cites·19 claims
- 2983US9735541B1Calibration of external-cavity tunable lasersGOOGLE INC·Filed 2014·Granted Aug 15, 2017·5 cites·34 claims
- 3083US7085495B2System 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
- 3182US9276678B1Scalable multi-source GPS signal distribution networkGOOGLE INC·Filed 2014·Granted Mar 1, 2016·6 cites·30 claims
- 3281US9369896B1Scalable multi-source GPS signal distribution networkGOOGLE INC·Filed 2014·Granted Jun 14, 2016·5 cites·30 claims
- 3381US7027733B2Delivering 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
- 3481US6697574B2Multiple input waveguide grating router for broadcast and multicast servicesAT & T CORP·Filed 2001·Granted Feb 24, 2004·16 cites·2 claims
- 3580US7286761B2Method 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
- 3679US9240672B1Wavelength tunable laserGOOGLE INC·Filed 2014·Granted Jan 19, 2016·4 cites·17 claims
- 3778US6871020B1Power spectrum monitoring and management in a wavelength division multiplexed networkAT & T CORP·Filed 2001·Granted Mar 22, 2005·14 cites·3 claims
- 3878US6751372B2Four-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
- 3976US7725028B1Method 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
- 4075US10243687B2Optical network unit wavelength tuningGOOGLE INC·Filed 2016·Granted Mar 26, 2019·2 cites·12 claims
- 4175US9692546B2Increasing the capacity of a WDM-PON with wavelength reuseGOOGLE INC·Filed 2015·Granted Jun 27, 2017·2 cites·12 claims
- 4275US7860393B1System 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
- 4375US7466918B1Wavelength allocation in regional access network with optical add-drop multiplexersAT & T CORP·Filed 2007·Granted Dec 16, 2008·4 cites·4 claims
- 4475US7286760B1Wavelength allocation in regional access network with optical add-drop multiplexersAT & T CORP·Filed 2003·Granted Oct 23, 2007·9 cites·2 claims
- 4573US10516479B1Feeder fiber and central office redundancyGOOGLE LLC·Filed 2019·Granted Dec 24, 2019·1 cites·24 claims
- 4671US12255692B2Polarization-folding coherent optical technology for short reach optical communicationGOOGLE LLC·Filed 2023·Granted Mar 18, 2025·0 cites·14 claims
- 4771US10651946B1In-field calibration of laser transmitterGOOGLE LLC·Filed 2019·Granted May 12, 2020·2 cites·32 claims
- 4871US9453920B1Scalable multi-source GPS signal distribution networkGOOGLE INC·Filed 2016·Granted Sep 27, 2016·2 cites·25 claims
- 4971US9197352B2Increasing the capacity of a WDM-PON with wavelength reuseGOOGLE INC·Filed 2013·Granted Nov 24, 2015·2 cites·14 claims
- 5070US12323233B2System, apparatus, and architecture for migrating an optical communication networkGOOGLE LLC·Filed 2023·Granted Jun 3, 2025·0 cites·18 claims
Showing the top 50 of 76 patent records by PatentIndex Score.
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