Inventor · disambiguated record
Sifen Luo
Also filed as: LUO SIFEN
25 granted patents·4 pending applications·518 citations·filing 1996–2017
97Inventor score
Files withKONINKL PHILIPS ELECTRONICS NV12MORFIS SEMICONDUCTOR INC3PHILIPS ELECTRONICS NA3IPR LICENSING INC2LUO SIFEN2
Top patents by PatentIndex Score
29 records- 0196US6300837B1Dynamic bias boosting circuit for a power amplifierPHILIPS ELECTRONICS NA·Filed 2000·Granted Oct 9, 2001·95 cites·5 claims
- 0295US7365604B2RF amplifier with a bias boosting schemeMEDIATEK INC·Filed 2005·Granted Apr 29, 2008·45 cites·13 claims
- 0392US6414553B1Power amplifier having a cascode current-mirror self-bias boosting circuitKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Jul 2, 2002·56 cites·6 claims
- 0489US6486739B1Amplifier with self-bias boosting using an enhanced wilson current mirror biasing schemeKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Nov 26, 2002·42 cites·20 claims
- 0587US6993299B2Efficiency of power amplifiers in devices using transmit beamformingIPR LICENSING INC·Filed 2004·Granted Jan 31, 2006·25 cites·5 claims
- 0684US6778016B2Simple self-biased cascode amplifier circuitKONINK PHILIPS ELETRONICS N V·Filed 2002·Granted Aug 17, 2004·34 cites·5 claims
- 0783US7899414B2Control of power amplifiers in devices using transmit beamformingIPR LICENSING INC·Filed 2009·Granted Mar 1, 2011·7 cites·6 claims
- 0883US6791418B2Capacitor coupled dynamic bias boosting circuit for a power amplifierKONINKL PHILIPS ELECTRONICS NV·Filed 2002·Granted Sep 14, 2004·30 cites·7 claims
- 0980US6492875B2Self-boosting circuit for a power amplifierKONINKL PHILIPS ELECTRONICS NV·Filed 2000·Granted Dec 10, 2002·32 cites·5 claims
- 1079US6359516B1High-frequency amplifier circuit with independent control of quiescent current and bias impedancePHILIPS ELECTRONICS NA·Filed 2000·Granted Mar 19, 2002·24 cites·6 claims
- 1171US6871049B2Improving the efficiency of power amplifiers in devices using transmit beamformingCOGNIO INC·Filed 2003·Granted Mar 22, 2005·10 cites·22 claims
- 1271US6624700B2Radio frequency power amplifier for cellular telephonesKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Sep 23, 2003·17 cites·7 claims
- 1371US6417735B1Amplifier with bias compensation using a current mirror circuitKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Jul 9, 2002·17 cites·17 claims
- 1468US6657425B2Power measurement circuit including harmonic filterKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Dec 2, 2003·14 cites·10 claims
- 1567US6417734B1High-frequency amplifier circuit with negative impedance cancellationKONINKL PHILIPS ELECTRONICS NV·Filed 2000·Granted Jul 9, 2002·14 cites·5 claims
- 1665US7262666B2Amplifier circuit having an extended Wilson current-mirror self-bias boosting circuitNXP BV·Filed 2003·Granted Aug 28, 2007·12 cites·6 claims
- 1763US7332968B2Amplifier circuit having an impedance-controllable bias-boosting circuitLUO SIFEN·Filed 2003·Granted Feb 19, 2008·13 cites·6 claims
- 1862US6448855B1Accurate power detection circuit for use in a power amplifierKONINKL PHILIPS ELECTRONICS NV·Filed 2000·Granted Sep 10, 2002·11 cites·6 claims
- 1958US9214902B2Bias-boosting bias circuit for radio frequency power amplifierTRIQUINT SEMICONDUCTOR INC·Filed 2013·Granted Dec 15, 2015·2 cites·19 claims
- 2056US9748620B2Structures for registration error compensationZIH CORP·Filed 2014·Granted Aug 29, 2017·0 cites·20 claims
- 2154US6456163B1High-frequency amplifier circuit having a directly-connected bias circuitKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Sep 24, 2002·7 cites·3 claims
- 2253US8933768B2Structures for registration error compensationZIH CORP·Filed 2012·Granted Jan 13, 2015·0 cites·53 claims
- 2348US5828269AHigh-frequency amplifier with high input impedance and high power efficiencyPHILIPS ELECTRONICS NA·Filed 1996·Granted Oct 27, 1998·11 cites·5 claims
- 2438US2016133375A1Coupling on-die inductors for radio-frequency applicationsMORFIS SEMICONDUCTOR INC·Filed 2015·Application pending·0 cites
- 2534US6566962B2Apparatus and method for tuning an inter-stage matching network of an integrated multistage amplifierKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted May 20, 2003·0 cites·18 claims
- 2633US2003112073A1RF amplifier with current mirror bias-boostingKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Application pending·0 cites
- 2732US2016134243A1Bias-boosting circuit with dual current mirrors for rf power amplifierMORFIS SEMICONDUCTOR INC·Filed 2015·Application pending·0 cites
- 2832US2016308500A1Bias-boosting circuit with a modified wilson current mirror circuit for radio frequency power amplifiersMORFIS SEMICONDUCTOR INC·Filed 2016·Application pending·0 cites
- 2931US10340852B2Bias boosting circuit for amplifierLUO SIFEN·Filed 2017·Granted Jul 2, 2019·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →