Inventor · disambiguated record
Ramin Zanbaghi
Also filed as: ZANBAGHI RAMIN
53 granted patents·152 citations·filing 2012–2023
97Inventor score
Top patents by PatentIndex Score
53 records- 0198US11290070B2Common-mode leakage error calibration for current sensing in a class-D stage using a pilot toneCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2020·Granted Mar 29, 2022·7 cites·21 claims
- 0295US11552649B1Analog-to-digital converter-embedded fixed-phase variable gain amplifier stages for dual monitoring pathsCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2021·Granted Jan 10, 2023·4 cites·20 claims
- 0395US9503112B1Non-linearity cancellation in a dual-path ADCCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2016·Granted Nov 22, 2016·16 cites·19 claims
- 0495US9397692B1Voltage-controlled oscillator (VCO) as first stage in an analog-to-digital converter (ADC) in combination with a digital filter for second or higher-order noise shapingCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2015·Granted Jul 19, 2016·23 cites·20 claims
- 0594US9503027B2Systems and methods for dynamic range enhancement using an open-loop modulator in parallel with a closed-loop modulatorCIRRUS LOGIC INC·Filed 2014·Granted Nov 22, 2016·20 cites·36 claims
- 0693US9970825B2Temperature sensing with feedback digital-analog converter (DAC) of delta-sigma modulatorCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2015·Granted May 15, 2018·6 cites·20 claims
- 0792US11329617B1Dual-channel class-D audio amplifier having quantizer-combined orthogonal modulationCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2021·Granted May 10, 2022·3 cites·20 claims
- 0892US11309853B1Common mode output voltage biasing in class-D audio amplifiers having selectable differential or dual single-ended operationCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2021·Granted Apr 19, 2022·3 cites·22 claims
- 0991US8643524B1Feed-forward analog-to-digital converter (ADC) with a reduced number of amplifiers and feed-forward signal pathsCIRRUS LOGIC INC·Filed 2012·Granted Feb 4, 2014·14 cites·18 claims
- 1089US11290071B2Common-mode insensitive current-sensing topology in full-bridge driverCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2020·Granted Mar 29, 2022·2 cites·20 claims
- 1188US10734981B1Direct driver voltage to ramp signal generationCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2019·Granted Aug 4, 2020·5 cites·18 claims
- 1286US11722107B2Zero-crossing management in Class-D audio amplifiersCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2022·Granted Aug 8, 2023·1 cites·22 claims
- 1384US10069483B1Multi-path analog system with multi-mode high-pass filterCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2017·Granted Sep 4, 2018·7 cites·74 claims
- 1483US10141946B1Multi-path analog system with multi-mode high-pass filterCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2017·Granted Nov 27, 2018·5 cites·18 claims
- 1583US9692444B1Neutralizing voltage kickback in a switched capacitor based data converterCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2016·Granted Jun 27, 2017·6 cites·52 claims
- 1681US9609701B2Switch-mode drive sensing of reverse recovery in bipolar junction transistor (BJT)-based power convertersCIRRUS LOGIC INC·Filed 2015·Granted Mar 28, 2017·4 cites·24 claims
- 1780US9496855B2Two terminal drive of bipolar junction transistor (BJT) of a light emitting diode (LED)-based bulbCIRRUS LOGIC INC·Filed 2014·Granted Nov 15, 2016·5 cites·28 claims
- 1879US9185767B2Self-oscillating resonant converter-based light emitting diode (LED) driverCIRRUS LOGIC INC·Filed 2014·Granted Nov 10, 2015·4 cites·27 claims
- 1978US12166457B2Splice-point determined zero-crossing management in audio amplifiersCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2023·Granted Dec 10, 2024·0 cites·21 claims
- 2076US10826512B1System and method for removing error in a system having an analog-to-digital converterCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2019·Granted Nov 3, 2020·3 cites·22 claims
- 2176US9722620B1Non-linearity cancellation in a dual-path ADCCIRRUS LOGIC INC·Filed 2016·Granted Aug 1, 2017·3 cites·19 claims
- 2275US11119134B2Detector and method for measuring a resistance of a variable resistance sensor whose resistance varies with respect to a time-varying stimulusCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2019·Granted Sep 14, 2021·1 cites·22 claims
- 2373US11750157B2Common-mode leakage error calibration for current sensing in a Class-D stage using a pilot toneCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2022·Granted Sep 5, 2023·0 cites·27 claims
- 2470US11854738B2Slew control for variable load pulse-width modulation driver and load sensingCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2021·Granted Dec 26, 2023·0 cites·18 claims
- 2569US10009039B1Multi-path analog system with multi-mode high-pass filterCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2017·Granted Jun 26, 2018·2 cites·12 claims
- 2668US11296685B2PWM modulator having quantizer calibratable for multi-non-ideal gain-affecting characteristicsCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2020·Granted Apr 5, 2022·0 cites·10 claims
- 2764US11811370B2Common-mode compensation in a multi-level pulse-width modulation systemCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2021·Granted Nov 7, 2023·0 cites·22 claims
- 2864US10819328B2PWM modulator having quantizer with controllable analog gain and calibratable for multi-non-ideal gain-affecting characteristicsCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2018·Granted Oct 27, 2020·1 cites·12 claims
- 2962US11791779B2Analog circuit differential pair element mismatch detection using spectral separationCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2020·Granted Oct 17, 2023·0 cites·24 claims
- 3061US10014879B1Capacitance-to-digital converterCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2017·Granted Jul 3, 2018·1 cites·14 claims
- 3161US9762257B2Phase shorting switchCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2016·Granted Sep 12, 2017·1 cites·20 claims
- 3261US9603206B2Detection and control mechanism for tail current in a bipolar junction transistor (BJT)-based power stageCIRRUS LOGIC INC·Filed 2015·Granted Mar 21, 2017·1 cites·20 claims
- 3360US11237065B2High dynamic range temperature sensorCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2019·Granted Feb 1, 2022·0 cites·21 claims
- 3460US11012043B2Hybrid autozeroing and chopping offset cancellation for switched-capacitor circuitsCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2019·Granted May 18, 2021·1 cites·21 claims
- 3560US9504106B2Compensating for a reverse recovery time period of a bipolar junction transistor (BJT) in switch-mode operation of a light-emitting diode (LED)-based bulbCIRRUS LOGIC INC·Filed 2014·Granted Nov 22, 2016·1 cites·22 claims
- 3658US11316508B2Detection and protection of short between power supplies in a Y-bridge driverCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2020·Granted Apr 26, 2022·0 cites·21 claims
- 3758US10460819B2Noise reduction in voltage reference signalCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2016·Granted Oct 29, 2019·1 cites·16 claims
- 3858US9799349B2Analog-to-digital converter (ADC) dynamic range enhancement for voice-activated systemsCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2015·Granted Oct 24, 2017·1 cites·33 claims
- 3957US11500406B2Ratiometric current-monitor sense resistance mismatch evaluation and calibrationCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2021·Granted Nov 15, 2022·0 cites·24 claims
- 4057US10566989B2Multi-path analog system with multi-mode high-pass filterCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2018·Granted Feb 18, 2020·0 cites·18 claims
- 4157US9385621B2Stabilization circuit for low-voltage lightingKONINKL PHILIPS NV·Filed 2014·Granted Jul 5, 2016·0 cites·22 claims
- 4255US12132493B2Data-dependent glitch and inter-symbol interference minimization in switched-capacitor circuitsCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2022·Granted Oct 29, 2024·0 cites·18 claims
- 4354US10659029B2Chopped triangular wave PWM quantizerCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2018·Granted May 19, 2020·0 cites·16 claims
- 4452US10720888B2Systems and methods for dynamic range enhancement using an open-loop modulator in parallel with a closed-loop modulatorCIRRUS LOGIC INC·Filed 2016·Granted Jul 21, 2020·0 cites·42 claims
- 4552US9735671B2Charge pump-based drive circuitry for bipolar junction transistor (BJT)-based power supplyCIRRUS LOGIC INC·Filed 2014·Granted Aug 15, 2017·0 cites·29 claims
- 4649US11296663B2Common-mode insensitive current-sensing topology in full-bridge driver with high-side and low-side energy matching calibrationCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2020·Granted Apr 5, 2022·0 cites·14 claims
- 4749US9253833B2Single pin control of bipolar junction transistor (BJT)-based power stageCIRRUS LOGIC INC·Filed 2014·Granted Feb 2, 2016·0 cites·27 claims
- 4847US12360175B1Driver stage short circuit detectionCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2021·Granted Jul 15, 2025·0 cites·20 claims
- 4947US12143078B2Circuit element pair matching method and circuitCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2021·Granted Nov 12, 2024·0 cites·50 claims
- 5046US11190148B2Minimizing idle channel noise in a class-D pulse width modulation amplifierCIRRUS LOGIC INT SEMICONDUCTOR LTD·Filed 2020·Granted Nov 30, 2021·0 cites·20 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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