Inventor · disambiguated record
Bumha Lee
Also filed as: LEE BUMHA
21 granted patents·528 citations·filing 2002–2017
96Inventor score
Top patents by PatentIndex Score
21 records- 0197US9912883B1Image sensor with calibrated column analog-to-digital convertersAPPLE INC·Filed 2017·Granted Mar 6, 2018·34 cites·20 claims
- 0294US7432752B1Duty cycle stabilizerNAT SEMICONDUCTOR CORP·Filed 2007·Granted Oct 7, 2008·31 cites·26 claims
- 0394US7038820B1Automatic exposure control for an image sensorEASTMAN KODAK CO·Filed 2002·Granted May 2, 2006·87 cites·42 claims
- 0493US7187318B1Pipeline ADC using multiplying DAC and analog delay circuitsNAT SEMICONDUCTOR CORP·Filed 2005·Granted Mar 6, 2007·34 cites·20 claims
- 0591US7279960B1Reference voltage generation using compensation current methodNAT SEMICONDUCTOR CORP·Filed 2005·Granted Oct 9, 2007·24 cites·20 claims
- 0691US6661283B1Wide gain range and fine gain step programmable gain amplifier with single stage switched capacitor circuitNAT SEMICONDUCTOR CORP·Filed 2002·Granted Dec 9, 2003·50 cites·18 claims
- 0789US6768374B1Programmable gain amplifier with single stage switched capacitor circuit using bandwidth balancingNAT SEMICONDUCTOR CORP·Filed 2003·Granted Jul 27, 2004·35 cites·20 claims
- 0888US7816951B1Locally boosted top plate sampling for a sampling capacitorNAT SEMICONDUCTOR CORP·Filed 2008·Granted Oct 19, 2010·21 cites·11 claims
- 0987US6963300B1Pipeline analog-to-digital converterNAT SEMICONDUCTOR CORP·Filed 2004·Granted Nov 8, 2005·40 cites·20 claims
- 1087US6791484B1Method and apparatus of system offset calibration with overranging ADCNAT SEMICONDUCTOR CORP·Filed 2003·Granted Sep 14, 2004·43 cites·19 claims
- 1186US7830159B1Capacitor mismatch measurement method for switched capacitor circuitsNAT SEMICONDUCTOR CORP·Filed 2008·Granted Nov 9, 2010·15 cites·14 claims
- 1284US7474154B1Bias device clamping circuit for fast over-range recoveryNAT SEMICONDUCTOR CORP·Filed 2007·Granted Jan 6, 2009·15 cites·13 claims
- 1381US7372319B1Constant boosted voltage generator circuit for feedback switches in a switched capacitor circuitNAT SEMICONDUCTOR CORP·Filed 2006·Granted May 13, 2008·19 cites·11 claims
- 1481US6778009B1High gain and wide bandwidth switched capacitor amplifier having a dynamically loaded amplifier outputNAT SEMICONDUCTOR CORP·Filed 2002·Granted Aug 17, 2004·29 cites·20 claims
- 1577US7084911B1Black level calibration method for imager with hysteresis comparison and adaptive step sizeEASTMAN KODAK CO·Filed 2002·Granted Aug 1, 2006·15 cites·28 claims
- 1676US7167200B1CMOS image sensor oversaturation protection circuitEASTMAN KODAK CO·Filed 2003·Granted Jan 23, 2007·17 cites·20 claims
- 1773US8847634B1High-speed unity-gain input buffer having improved linearity and stability with a low supply voltageTEXAS INSTRUMENTS INC·Filed 2013·Granted Sep 30, 2014·3 cites·16 claims
- 1859US8928398B2Differential analog signal processing stage with reduced even order harmonic distortionTEXAS INSTRUMENTS INC·Filed 2013·Granted Jan 6, 2015·1 cites·20 claims
- 1952US9467109B2Differential amplifier with high-speed common mode feedbackTEXAS INSTRUMENTS INC·Filed 2014·Granted Oct 11, 2016·1 cites·17 claims
- 2049US6759975B1Digital-to-analog converter with a shifted output and an increased rangeNAT SEMICONDUCTOR CORP·Filed 2003·Granted Jul 6, 2004·6 cites·20 claims
- 2148US6828851B1Constant voltage charge-pump circuit with feedbackNAT SEMICONDUCTOR CORP·Filed 2002·Granted Dec 7, 2004·8 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →