Inventor · disambiguated record
Qingjin Du
Also filed as: DU QINGJIN
5 granted patents·60 citations·filing 2006–2024
75Inventor score
Top patents by PatentIndex Score
5 records- 0196US7633322B1Digital loop circuit for programmable logic deviceALTERA CORP·Filed 2007·Granted Dec 15, 2009·48 cites·45 claims
- 0275US7474167B1Capacitance switch circuitry for digitally controlled oscillatorsALTERA CORP·Filed 2006·Granted Jan 6, 2009·6 cites·25 claims
- 0368US8014480B1Zero-delay serial communications circuitry for serial interconnectsALTERA CORP·Filed 2007·Granted Sep 6, 2011·6 cites·18 claims
- 0466US12388430B1Programmable delay-line circuit with single delay array and real-time calibrationQUALCOMM INC·Filed 2024·Granted Aug 12, 2025·0 cites·20 claims
- 0539US7843275B1Frequency synthesizer circuitry employing delay lineALTERA CORP·Filed 2007·Granted Nov 30, 2010·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →