Inventor · disambiguated record
Xiangjun Zhao
Also filed as: ZHAO XIANGJUN
26 granted patents·2 pending applications·107 citations·filing 2002–2021
94Inventor score
Top patents by PatentIndex Score
28 records- 0197US10103513B1Common cathode laser driving circuitGOOGLE INC·Filed 2017·Granted Oct 16, 2018·36 cites·21 claims
- 0293US9749080B2TWDM passive network with extended reach and capacityGOOGLE INC·Filed 2015·Granted Aug 29, 2017·10 cites·12 claims
- 0393US9608758B1Low cost gain clamped EDFA for TWDM passive optical network applicationGOOGLE INC·Filed 2015·Granted Mar 28, 2017·11 cites·30 claims
- 0489US10461498B2Common cathode laser driving circuitGOOGLE LLC·Filed 2018·Granted Oct 29, 2019·6 cites·27 claims
- 0589US9001852B1Wavelength tunable laserGOOGLE INC·Filed 2013·Granted Apr 7, 2015·9 cites·16 claims
- 0688US9438005B1Calibration of a tunable DBR laserGOOGLE INC·Filed 2014·Granted Sep 6, 2016·8 cites·27 claims
- 0785US10153612B1Tunable laser bias circuitGOOGLE LLC·Filed 2017·Granted Dec 11, 2018·6 cites·26 claims
- 0883US9735541B1Calibration of external-cavity tunable lasersGOOGLE INC·Filed 2014·Granted Aug 15, 2017·5 cites·34 claims
- 0979US9240672B1Wavelength tunable laserGOOGLE INC·Filed 2014·Granted Jan 19, 2016·4 cites·17 claims
- 1075US10243687B2Optical network unit wavelength tuningGOOGLE INC·Filed 2016·Granted Mar 26, 2019·2 cites·12 claims
- 1173US10516479B1Feeder fiber and central office redundancyGOOGLE LLC·Filed 2019·Granted Dec 24, 2019·1 cites·24 claims
- 1271US10651946B1In-field calibration of laser transmitterGOOGLE LLC·Filed 2019·Granted May 12, 2020·2 cites·32 claims
- 1361US7006279B2Optical harmonic equalization control systems and methodsEC OPTICS TECHNOLOGY INC·Filed 2002·Granted Feb 28, 2006·7 cites·38 claims
- 1457US10666379B2Optical network unit wavelength tuningGOOGLE LLC·Filed 2019·Granted May 26, 2020·0 cites·16 claims
- 1556US10439722B2Feeder fiber and central office redundancyGOOGLE LLC·Filed 2018·Granted Oct 8, 2019·0 cites·21 claims
- 1653US10050708B2Feeder fiber and central office redundancyGOOGLE INC·Filed 2016·Granted Aug 14, 2018·0 cites·16 claims
- 1752US9948422B2Low cost gain clamped EDFA for TWDM passive optical network applicationGOOGLE INC·Filed 2017·Granted Apr 17, 2018·0 cites·30 claims
- 1851US10158930B2Upgrading PON systems using a multi-cycle field AWGGOOGLE INC·Filed 2017·Granted Dec 18, 2018·0 cites·24 claims
- 1950US9729950B2Upgrading PON systems using a multi-cycle field AWGGOOGLE INC·Filed 2015·Granted Aug 8, 2017·0 cites·13 claims
- 2049US11901696B2Wavelength drift suppression for burst-mode tunable EML laserGOOGLE LLC·Filed 2019·Granted Feb 13, 2024·0 cites·20 claims
- 2149US10992387B2Port replicatorGOOGLE LLC·Filed 2019·Granted Apr 27, 2021·0 cites·16 claims
- 2249US2017317778A1TWDM Passive Network with Extended Reach and CapacityGOOGLE INC·Filed 2017·Application pending·0 cites
- 2347US11594856B2Wavelength drift suppression for burst-mode tunable EML transmitterGOOGLE LLC·Filed 2019·Granted Feb 28, 2023·0 cites·24 claims
- 2446US12009635B2Switching circuit for burst-mode tunable laserGOOGLE LLC·Filed 2019·Granted Jun 11, 2024·0 cites·26 claims
- 2545US2024381053A1Ultra-Wideband Ranging Method and DeviceGOOGLE LLC·Filed 2021·Application pending·0 cites
- 2644US10171199B2Tunable laser in an optical access networkGOOGLE INC·Filed 2016·Granted Jan 1, 2019·0 cites·20 claims
- 2743US11600965B2Burst mode laser driving circuitGOOGLE LLC·Filed 2019·Granted Mar 7, 2023·0 cites·28 claims
- 2838US10063944B2Feeder fiber and central office redundancyGOOGLE INC·Filed 2016·Granted Aug 28, 2018·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →