Inventor · disambiguated record
Khai Nguyen
Also filed as: NGUYEN KHAI · NGUYEN KHAI Q
100 granted patents·3 pending applications·2,473 citations·filing 1998–2016
99Inventor score
Top patents by PatentIndex Score
103 records- 0199US7525360B1I/O duty cycle and skew controlALTERA CORP·Filed 2007·Granted Apr 28, 2009·117 cites·20 claims
- 0298US6686769B1Programmable I/O element circuit for high speed logic devicesALTERA CORP·Filed 2001·Granted Feb 3, 2004·146 cites·29 claims
- 0398US6433579B1Programmable logic integrated circuit devices with differential signaling capabilitiesALTERA CORP·Filed 2001·Granted Aug 13, 2002·136 cites·50 claims
- 0497US9099999B1Adjustable drive strength input-output buffer circuitryWANG BONNIE I·Filed 2012·Granted Aug 4, 2015·44 cites·14 claims
- 0597US7221193B1On-chip termination with calibrated driver strengthALTERA CORP·Filed 2005·Granted May 22, 2007·67 cites·24 claims
- 0697US6292116B1Techniques and circuitry for accurately sampling high frequency data signals input to an integrated circuitALTERA CORP·Filed 2000·Granted Sep 18, 2001·115 cites·20 claims
- 0796US9711189B1On-die input reference voltage with self-calibrating duty cycle correctionWANG BONNIE I·Filed 2011·Granted Jul 18, 2017·37 cites·12 claims
- 0896US7417452B1Techniques for providing adjustable on-chip termination impedanceALTERA CORP·Filed 2006·Granted Aug 26, 2008·32 cites·25 claims
- 0996US6825698B2Programmable high speed I/O interfaceALTERA CORP·Filed 2002·Granted Nov 30, 2004·46 cites·38 claims
- 1096US6667641B1Programmable phase shift circuitryALTERA CORP·Filed 2002·Granted Dec 23, 2003·73 cites·27 claims
- 1196US6236231B1Programmable logic integrated circuit devices with low voltage differential signaling capabilitiesALTERA CORP·Filed 1999·Granted May 22, 2001·111 cites·16 claims
- 1295US8610462B1Input-output circuit and method of improving input-output signalsWANG XIAOBAO·Filed 2011·Granted Dec 17, 2013·20 cites·22 claims
- 1395US7994821B1Level shifter circuits and methodsALTERA CORP·Filed 2010·Granted Aug 9, 2011·19 cites·20 claims
- 1495US7973553B1Techniques for on-chip terminationALTERA CORP·Filed 2010·Granted Jul 5, 2011·32 cites·21 claims
- 1594US8630131B1Data strobe enable circuitrySHIAO WILMA·Filed 2012·Granted Jan 14, 2014·35 cites·20 claims
- 1694US7218155B1Techniques for controlling on-chip termination resistance using voltage range detectionALTERA CORP·Filed 2005·Granted May 15, 2007·32 cites·23 claims
- 1794US6911860B1On/off reference voltage switch for multiple I/O standardsALTERA CORP·Filed 2001·Granted Jun 28, 2005·59 cites·26 claims
- 1894US6114915AProgrammable wide-range frequency synthesizerALTERA CORP·Filed 1999·Granted Sep 5, 2000·100 cites·17 claims
- 1993US8400186B1Techniques for buffering single-ended and differential signalsWANG XIAOBAO·Filed 2012·Granted Mar 19, 2013·15 cites·20 claims
- 2093US8390315B1Configurable input-output (I/O) circuitry with pre-emphasis circuitryWANG XIAOBAO·Filed 2012·Granted Mar 5, 2013·16 cites·12 claims
- 2193US7420386B2Techniques for providing flexible on-chip termination control on integrated circuitsALTERA CORP·Filed 2006·Granted Sep 2, 2008·30 cites·20 claims
- 2293US7116135B2Programmable high speed I/O interfaceALTERA CORP·Filed 2004·Granted Oct 3, 2006·30 cites·45 claims
- 2393US6369624B1Programmable phase shift circuitryALTERA CORP·Filed 1999·Granted Apr 9, 2002·78 cites·26 claims
- 2492US7378868B2Modular I/O bank architectureALTERA CORP·Filed 2006·Granted May 27, 2008·24 cites·40 claims
- 2592US7236018B1Programmable low-voltage differential signaling output driverALTERA CORP·Filed 2004·Granted Jun 26, 2007·54 cites·12 claims
- 2692US6825692B1Input buffer for multiple differential I/O standardsALTERA CORP·Filed 2002·Granted Nov 30, 2004·38 cites·25 claims
- 2791US9048823B2Duty cycle distortion correction circuitryALTERA CORP·Filed 2013·Granted Jun 2, 2015·10 cites·19 claims
- 2891US7425844B1Input buffer for multiple differential I/O standardsALTERA CORP·Filed 2007·Granted Sep 16, 2008·14 cites·24 claims
- 2991US6870413B1Schmitt trigger circuit with adjustable trip point voltagesALTERA CORP·Filed 2001·Granted Mar 22, 2005·47 cites·25 claims
- 3091US6314550B1Cascaded programming with multiple-purpose pinsALTERA CORP·Filed 1998·Granted Nov 6, 2001·57 cites·50 claims
- 3190US7205788B1Programmable on-chip differential termination impedanceALTERA CORP·Filed 2005·Granted Apr 17, 2007·18 cites·11 claims
- 3290US6630844B1Supply voltage detection circuitALTERA CORP·Filed 2001·Granted Oct 7, 2003·33 cites·37 claims
- 3389US8816743B1Clock structure with calibration circuitryALTERA CORP·Filed 2013·Granted Aug 26, 2014·11 cites·20 claims
- 3489US8531205B1Programmable output bufferWANG BONNIE I·Filed 2012·Granted Sep 10, 2013·10 cites·8 claims
- 3589US7315188B2Programmable high speed interfaceALTERA CORP·Filed 2006·Granted Jan 1, 2008·10 cites·39 claims
- 3689US6766505B1Parallel programming of programmable logic using register chainsALTERA CORP·Filed 2002·Granted Jul 20, 2004·39 cites·29 claims
- 3789US6661733B1Dual-port SRAM in a programmable logic deviceALTERA CORP·Filed 2001·Granted Dec 9, 2003·39 cites·33 claims
- 3889US6603329B1Systems and methods for on-chip impedance terminationALTERA CORP·Filed 2002·Granted Aug 5, 2003·61 cites·21 claims
- 3988US8149038B1Techniques for phase adjustmentSUNG CHIAKANG·Filed 2010·Granted Apr 3, 2012·11 cites·33 claims
- 4088US6970024B1Over-voltage protection of integrated circuit I/O pinsALTERA CORP·Filed 2004·Granted Nov 29, 2005·34 cites·21 claims
- 4186US6642758B1Voltage, temperature, and process independent programmable phase shift for PLLALTERA CORP·Filed 2000·Granted Nov 4, 2003·26 cites·24 claims
- 4285US7215143B1Input buffer for multiple differential I/O standardsALTERA CORP·Filed 2004·Granted May 8, 2007·20 cites·30 claims
- 4385US6972593B1Method and apparatus for protecting a circuit during a hot socket conditionALTERA CORP·Filed 2003·Granted Dec 6, 2005·24 cites·19 claims
- 4485US6535031B1Programmable logic integrated circuit devices with low voltage differential signaling capabilitiesALTERA CORP·Filed 2002·Granted Mar 18, 2003·22 cites·22 claims
- 4584US6448820B1Fast locking phase frequency detectorALTERA CORP·Filed 1999·Granted Sep 10, 2002·39 cites·43 claims
- 4683US8022723B1Dynamic termination-impedance control for bidirectional I/O pinsALTERA CORP·Filed 2006·Granted Sep 20, 2011·9 cites·9 claims
- 4782US9166596B2Memory interface circuitry with improved timing marginsALTERA CORP·Filed 2012·Granted Oct 20, 2015·6 cites·18 claims
- 4882US8487665B2Programmable high-speed interfaceWANG BONNIE I·Filed 2011·Granted Jul 16, 2013·3 cites·17 claims
- 4982US7586341B2Programmable high-speed interfaceALTERA CORP·Filed 2007·Granted Sep 8, 2009·6 cites·10 claims
- 5079US6888369B1Programmable on-chip differential termination impedanceALTERA CORP·Filed 2003·Granted May 3, 2005·23 cites·17 claims
Showing the top 50 of 103 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →