Inventor · disambiguated record
Roubik Gregorian
Also filed as: GREGORIAN ROUBIK
31 granted patents·3 pending applications·906 citations·filing 1978–2010
98Inventor score
Files withAMERICAN MICRO SYST12EXAR CORP12SIERRA SEMICONDUCTOR CORP3GREGORIAN ROUBIK2FOTOUHI BAHRAM1
Top patents by PatentIndex Score
34 records- 0199US4210872AHigh pass switched capacitor filter sectionAMERICAN MICRO SYST·Filed 1978·Granted Jul 1, 1980·139 cites·8 claims
- 0293US4404525ASwitched capacitor gain stage with offset and switch feedthrough cancellation schemeAMERICAN MICRO SYST·Filed 1981·Granted Sep 13, 1983·51 cites·10 claims
- 0393US4179665ASwitched capacitor elliptic filterAMERICAN MICRO SYST·Filed 1978·Granted Dec 18, 1979·39 cites·5 claims
- 0491US4521907AMultiplier/adder circuitAMERICAN MICRO SYST·Filed 1982·Granted Jun 4, 1985·102 cites·4 claims
- 0591US4331894ASwitched-capacitor interolation filterAMERICAN MICRO SYST·Filed 1980·Granted May 25, 1982·39 cites·9 claims
- 0690US4422155AMultiplier/adder circuitAMERICAN MICRO SYST·Filed 1981·Granted Dec 20, 1983·81 cites·10 claims
- 0789US7843859B1Analog echo canceller with filter banksNETLOGIC MICROSYSTEMS INC·Filed 2008·Granted Nov 30, 2010·14 cites·23 claims
- 0889US4555668AGain amplifierAMERICAN MICRO SYST·Filed 1983·Granted Nov 26, 1985·40 cites·10 claims
- 0987US7839758B1Analog echo canceller with interpolating outputNET LOGIC MICROSYSTEMS INC·Filed 2008·Granted Nov 23, 2010·12 cites·15 claims
- 1085US6300820B1Voltage regulated charge pumpEXAR CORP·Filed 2000·Granted Oct 9, 2001·50 cites·22 claims
- 1185US4393351AOffset compensation for switched capacitor integratorsAMERICAN MICRO SYST·Filed 1981·Granted Jul 12, 1983·44 cites·6 claims
- 1279US6351165B1Digital jitter attenuator using an accumulated count of phase differencesEXAR CORP·Filed 2000·Granted Feb 26, 2002·30 cites·9 claims
- 1379US6031389ASlew rate limited output driverEXAR CORP·Filed 1997·Granted Feb 29, 2000·35 cites·11 claims
- 1474US4329599ASwitched-capacitor cosine filterAMERICAN MICRO SYST·Filed 1980·Granted May 11, 1982·18 cites·8 claims
- 1566US6452425B1Automatic frequency rate switchEXAR CORP·Filed 2001·Granted Sep 17, 2002·13 cites·17 claims
- 1663US8917582B2Analog echo canceller with interpolating outputGREGORIAN ROUBIK·Filed 2010·Granted Dec 23, 2014·2 cites·21 claims
- 1763US5489902ADynamic power saving video DACSIERRA SEMICONDUCTOR CORP·Filed 1994·Granted Feb 6, 1996·22 cites·12 claims
- 1863US5258761AHigh resolution charge-redistribution A/D converterFOTOUHI BAHRAM·Filed 1992·Granted Nov 2, 1993·25 cites·11 claims
- 1962US5204854AAdaptive hybridSIERRA SEMICONDUCTOR CORP·Filed 1991·Granted Apr 20, 1993·39 cites·9 claims
- 2057US4866389ACircuit and method for measuring battery voltage by time of discharge of a capacitorVENTRITEX INC·Filed 1988·Granted Sep 12, 1989·15 cites·12 claims
- 2157US4306197ASwitched-capacitor elliptic filterAMERICAN MICRO SYST·Filed 1979·Granted Dec 15, 1981·9 cites·7 claims
- 2256US5914632ANegative charge pump circuitEXAR CORP·Filed 1997·Granted Jun 22, 1999·24 cites·18 claims
- 2356US5221890AReference generatorSIERRA SEMICONDUCTOR CORP·Filed 1992·Granted Jun 22, 1993·17 cites·8 claims
- 2454US4229800ARound off correction logic for modified Booth's algorithmAMERICAN MICRO SYST·Filed 1978·Granted Oct 21, 1980·21 cites·2 claims
- 2552US6798857B2Clock recovery circuitEXAR CORP·Filed 2000·Granted Sep 28, 2004·3 cites·14 claims
- 2650US7127021B2Interleaved pulse-extended phase detectorEXAR CORP·Filed 2002·Granted Oct 24, 2006·1 cites·10 claims
- 2746US6906593B2Frequency compensation of wide-band resistive gain amplifierEXAR CORP·Filed 2003·Granted Jun 14, 2005·4 cites·13 claims
- 2843US6333651B1Second order digital jitter attenuatorEXAR CORP·Filed 2000·Granted Dec 25, 2001·4 cites·7 claims
- 2942US4975701AExponential gain control for nonlinear analog-to-digital converterSIERRA SEMICONDUCTOR·Filed 1989·Granted Dec 4, 1990·7 cites·13 claims
- 3042US2003190001A1Clock and data recovery circuit for return-to-zero dataEXAR CORP·Filed 2002·Application pending·0 cites
- 3142US2002097808A1Digitally-controlled line build-out circuitEXAR CORP·Filed 2000·Application pending·0 cites
- 3240US2011044216A1Systems, circuits and methods for an analog echo canceller with interpolating outputGREGORIAN ROUBIK·Filed 2010·Application pending·0 cites
- 3338US4541103ADigitally controlled syllabic filter for a delta modulatorAMERICAN MICRO SYST·Filed 1983·Granted Sep 10, 1985·5 cites·6 claims
- 3427US6121837AConstant gain amplifierEXAR CORP·Filed 1998·Granted Sep 19, 2000·1 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →