Inventor · disambiguated record
Chang Woo Ha
Also filed as: HA CHANG WOO
21 granted patents·2 pending applications·79 citations·filing 2003–2022
93Inventor score
Files withSAMSUNG ELECTRO MECH15HA CHANG WOO3HYUNDAI MOTOR CO LTD3DONGBU HITEK CO LTD1HYUNDAI AUTRON CO LTD1
Top patents by PatentIndex Score
23 records- 0186US7800566B2Drive device of color LED backlightSAMSUNG ELECTRO MECH·Filed 2006·Granted Sep 21, 2010·14 cites·4 claims
- 0285US10459316B2Camera apparatus for vehicleHYUNDAI AUTRON CO LTD·Filed 2018·Granted Oct 29, 2019·5 cites·8 claims
- 0376US7417471B2Voltage comparator having hysteresis characteristicsSAMSUNG ELECTRO MECH·Filed 2006·Granted Aug 26, 2008·8 cites·13 claims
- 0473US12015284B2Low frequency sensor based apparatus and method for measuring vehicle positionHYUNDAI MOTOR CO LTD·Filed 2022·Granted Jun 18, 2024·0 cites·6 claims
- 0571US7285922B2Driving apparatus for CCFLSAMSUNG ELECTRO MECH·Filed 2006·Granted Oct 23, 2007·4 cites·4 claims
- 0669US7746318B2Liquid crystal display backlight inverterSAMSUNG ELECTRO MECH·Filed 2007·Granted Jun 29, 2010·3 cites·3 claims
- 0768US7271520B2Piezo actuator driving circuitSAMSUNG ELECTRO MECH·Filed 2006·Granted Sep 18, 2007·5 cites·18 claims
- 0867US8643587B2Field sequential color mode liquid crystal displayHA CHANG WOO·Filed 2006·Granted Feb 4, 2014·2 cites·11 claims
- 0967US8018177B2Dimming buck type LED driving apparatusSAMSUNG ELECTRO MECH·Filed 2008·Granted Sep 13, 2011·3 cites·10 claims
- 1066US8054123B2Fast differential level shifter and boot strap driver including the sameDONGBU HITEK CO LTD·Filed 2009·Granted Nov 8, 2011·5 cites·13 claims
- 1164US7646181B2Control circuit of DC-DC converterSAMSUNG ELECTRO MECH·Filed 2007·Granted Jan 12, 2010·7 cites·10 claims
- 1261US7741893B2Dual mode clock generatorSAMSUNG ELECTRO MECH·Filed 2008·Granted Jun 22, 2010·4 cites·12 claims
- 1356US7471029B2Frequency-control-type piezo actuator driving circuit and method of driving the sameSAMSUNG ELECTRO MECH·Filed 2006·Granted Dec 30, 2008·2 cites·20 claims
- 1455US11611246B2Low frequency sensor based apparatus and method for measuring vehicle positionHYUNDAI MOTOR CO LTD·Filed 2019·Granted Mar 21, 2023·0 cites·14 claims
- 1553US8207877B2Serial interface, apparatus including the same, and method of using the sameHA CHANG WOO·Filed 2010·Granted Jun 26, 2012·2 cites·19 claims
- 1653US7515004B2Voltage controlled oscillator with duty correctionSAMSUNG ELECTRO MECH·Filed 2006·Granted Apr 7, 2009·2 cites·8 claims
- 1750US6864724B1Current to voltage conversion circuit for photo detector integrated circuit employing gain switching circuitSAMSUNG ELECTRO MECH·Filed 2003·Granted Mar 8, 2005·6 cites·14 claims
- 1849US7737938B2Driving circuit for LCD backlightSAMSUNG ELECTRO MECH·Filed 2007·Granted Jun 15, 2010·0 cites·8 claims
- 1949US2022194434A1Apparatus for controlling autonomous, system having the same, and method thereofHYUNDAI MOTOR CO LTD·Filed 2021·Application pending·0 cites
- 2048US7057423B2Current-voltage transforming circuit employing limiter circuitSAMSUNG ELECTRO MECH·Filed 2003·Granted Jun 6, 2006·5 cites·14 claims
- 2145US7209001B2Offset compensation circuit for a monitoring photodiodeSAMSUNG ELECTRO MECH·Filed 2005·Granted Apr 24, 2007·1 cites·16 claims
- 2245US2007200513A1Drive device of color led backlightSAMSUNG ELECTRO MECH·Filed 2006·Application pending·0 cites
- 2336US8102193B2Current sensing circuitHA CHANG-WOO·Filed 2009·Granted Jan 24, 2012·1 cites·10 claims
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