Inventor · disambiguated record
Changku Hwang
Also filed as: HWANG CHANGKU
14 granted patents·1 pending application·105 citations·filing 1999–2017
92Inventor score
Top patents by PatentIndex Score
15 records- 0193US8604852B1Noise suppression using an asymmetric frequency-locked loopTURULLOLS SEBASTIAN·Filed 2012·Granted Dec 10, 2013·20 cites·20 claims
- 0286US10768057B2Statistical temperature sensor calibration apparatus and methodologyORACLE INT CORP·Filed 2017·Granted Sep 8, 2020·3 cites·20 claims
- 0385US8994402B2Level shifter circuit optimized for metastability resolution and integrated level shifter and metastability resolution circuitORACLE INT CORP·Filed 2013·Granted Mar 31, 2015·7 cites·17 claims
- 0482US9689917B2Digital voltage droop monitor with clock jitter adjustmentORACLE INT CORP·Filed 2015·Granted Jun 27, 2017·4 cites·17 claims
- 0581US9772375B2High sensitivity digital voltage droop monitor for integrated circuitsORACLE INT CORP·Filed 2015·Granted Sep 26, 2017·3 cites·19 claims
- 0676US8816720B2Single power supply logic level shifter circuitKIM HOKI·Filed 2012·Granted Aug 26, 2014·6 cites·13 claims
- 0773US10205375B1Automated power supply sense line selectionORACLE INT CORP·Filed 2017·Granted Feb 12, 2019·2 cites·20 claims
- 0873US9312864B2AFLL with increased timing marginORACLE INT CORP·Filed 2014·Granted Apr 12, 2016·4 cites·18 claims
- 0971US9954540B1Asymmetric locking technique for asymmetric frequency locked loopORACLE INT CORP·Filed 2017·Granted Apr 24, 2018·3 cites·20 claims
- 1069US6215364B1Variable frequency oscillator, and phase locked loop and clock synchronizer using thereofHITACHI LTD·Filed 1999·Granted Apr 10, 2001·28 cites·16 claims
- 1166US8729947B2Wide-range glitch-free asynchronous clock switchHWANG CHANGKU·Filed 2012·Granted May 20, 2014·4 cites·19 claims
- 1262US6535070B2Variable frequency oscillator, and phase locked loop and clock synchronizer using thereofHITACHI LTD·Filed 2001·Granted Mar 18, 2003·9 cites·9 claims
- 1359US9841325B2High accuracy, compact on-chip temperature sensorORACLE INT CORP·Filed 2014·Granted Dec 12, 2017·1 cites·20 claims
- 1451US6259284B1Charge free power-on-reset circuitHITACHI AMERICA LTD·Filed 1999·Granted Jul 10, 2001·11 cites·9 claims
- 1532US2002075063A1Frequency adaptive negative voltage generatorHITACHI AMERICA LTD·Filed 2000·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →