Inventor · disambiguated record
Michael H. Perrott
Also filed as: PERROTT MICHAEL · PERROTT MICHAEL H · PERROTT MICHAEL HENDERSON
80 granted patents·5 pending applications·1,649 citations·filing 1997–2025
99Inventor score
Top patents by PatentIndex Score
85 records- 0199US11112388B2Operation of an ultrasonic sensorINVENSENSE INC·Filed 2020·Granted Sep 7, 2021·12 cites·20 claims
- 0299US10539539B2Operation of an ultrasonic sensorINVENSENSE INC·Filed 2017·Granted Jan 21, 2020·37 cites·20 claims
- 0398US11154906B2Receive operation of an ultrasonic sensorINVENSENSE INC·Filed 2020·Granted Oct 26, 2021·5 cites·19 claims
- 0498US10706835B2Transmit beamforming of a two-dimensional array of ultrasonic transducersINVENSENSE INC·Filed 2017·Granted Jul 7, 2020·32 cites·22 claims
- 0598US10600403B2Transmit operation of an ultrasonic sensorINVENSENSE INC·Filed 2017·Granted Mar 24, 2020·37 cites·22 claims
- 0698US9762250B2Cancellation of spurious tones within a phase-locked loop with a time-to-digital converterSILICON LAB INC·Filed 2014·Granted Sep 12, 2017·20 cites·33 claims
- 0798US9490818B2Cancellation of delta-sigma quantization noise within a fractional-N PLL with a nonlinear time-to-digital converterSILICON LAB INC·Filed 2014·Granted Nov 8, 2016·21 cites·20 claims
- 0898US9246500B2Time-to-voltage converter using a capacitor based digital to analog converter for quantization noise cancellationSILICON LAB INC·Filed 2014·Granted Jan 26, 2016·28 cites·25 claims
- 0997US11632116B2Calibration of parametric error of digital-to-time convertersTEXAS INSTRUMENTS INC·Filed 2022·Granted Apr 18, 2023·8 cites·20 claims
- 1097US9523615B1Capacitor-referenced temperature sensingSITIME CORP·Filed 2015·Granted Dec 20, 2016·9 cites·22 claims
- 1197US9182295B1Circuitry and techniques for resistor-based temperature sensingPERROTT MICHAEL H·Filed 2012·Granted Nov 10, 2015·34 cites·19 claims
- 1296US11637537B2Method for improving die area and power efficiency in high dynamic range digital microphonesINVENSENSE INC·Filed 2020·Granted Apr 25, 2023·6 cites·15 claims
- 1396US11374589B2Adaptive analog to digital converter (ADC) multipath digital microphonesINVENSENSE INC·Filed 2020·Granted Jun 28, 2022·6 cites·18 claims
- 1496US10315222B2Two-dimensional array of CMOS control elementsINVENSENSE INC·Filed 2016·Granted Jun 11, 2019·43 cites·25 claims
- 1596US8299826B2Phase locked loop circuitry having switched resistor loop filter circuitry, and methods of operating samePERROTT MICHAEL H·Filed 2010·Granted Oct 30, 2012·26 cites·16 claims
- 1696US7133485B1Feedback system incorporating slow digital switching for glitch-free state changesSILICON LAB INC·Filed 2002·Granted Nov 7, 2006·51 cites·49 claims
- 1796US6741109B1Method and apparatus for switching between input clocks in a phase-locked loopSILICON LAB INC·Filed 2002·Granted May 25, 2004·81 cites·33 claims
- 1896US6008703ADigital compensation for wideband modulation of a phase locked loop frequency synthesizerMASSACHUSETTS INST TECHNOLOGY·Filed 1997·Granted Dec 28, 1999·441 cites·25 claims
- 1995US10562070B2Receive operation of an ultrasonic sensorINVENSENSE INC·Filed 2017·Granted Feb 18, 2020·13 cites·20 claims
- 2095US10175119B1Temperature sensor with frequency-controlled referenceSiTime Coporation·Filed 2016·Granted Jan 8, 2019·5 cites·20 claims
- 2194US10325915B2Two-dimensional array of CMOS control elementsINVENSENSE INC·Filed 2016·Granted Jun 18, 2019·18 cites·20 claims
- 2294US9705514B2Hybrid analog and digital control of oscillator frequencySILICON LAB INC·Filed 2014·Granted Jul 11, 2017·13 cites·20 claims
- 2394US6657488B1Offset correction and slicing level adjustment for amplifier circuitsSILICON LAB INC·Filed 2001·Granted Dec 2, 2003·80 cites·49 claims
- 2493US9461653B2Fractional-N phase-locked loopSILICON LAB INC·Filed 2015·Granted Oct 4, 2016·8 cites·19 claims
- 2593US9270288B2Time-to-digital converter based on a voltage controlled oscillatorSILICON LAB INC·Filed 2014·Granted Feb 23, 2016·11 cites·24 claims
- 2693US6630868B2Digitally-synthesized loop filter circuit particularly useful for a phase locked loopSILICON LAB INC·Filed 2001·Granted Oct 7, 2003·74 cites·65 claims
- 2792US10855308B2Adaptive analog to digital converter (ADC) multipath digital microphonesINVENSENSE INC·Filed 2019·Granted Dec 1, 2020·9 cites·26 claims
- 2892US9673768B2Multipath digital microphonesINVENSENSE INC·Filed 2015·Granted Jun 6, 2017·12 cites·25 claims
- 2991US7593644B2Synchronization of lasers and RF sources using timing information transfer in the optical domainMASSACHUSETTS INST TECHNOLOGY·Filed 2005·Granted Sep 22, 2009·17 cites·28 claims
- 3091US6580376B2Apparatus and method for decimating a digital input signalSILICON LAB INC·Filed 2001·Granted Jun 17, 2003·53 cites·45 claims
- 3190US11870446B2High gain detector techniques for low bandwidth low noise phase-locked loopsTEXAS INSTRUMENTS INC·Filed 2021·Granted Jan 9, 2024·2 cites·20 claims
- 3290US8138843B2Gated ring oscillator for a time-to-digital converter with shaped quantization noiseSTRAAYER MATTHEW·Filed 2007·Granted Mar 20, 2012·38 cites·9 claims
- 3390US6765445B2Digitally-synthesized loop filter circuit particularly useful for a phase locked loopSILICON LAB INC·Filed 2003·Granted Jul 20, 2004·46 cites·28 claims
- 3490US6590426B2Digital phase detector circuit and method thereforSILICON LAB INC·Filed 2001·Granted Jul 8, 2003·47 cites·63 claims
- 3589US12381567B2Digital-to-time converter calibrationTEXAS INSTRUMENTS INC·Filed 2023·Granted Aug 5, 2025·1 cites·21 claims
- 3689US9444406B1Amplifier topology achieving high DC gain and wide output voltage rangeSILICON LAB INC·Filed 2015·Granted Sep 13, 2016·9 cites·20 claims
- 3789US7463098B2Feedback system incorporating slow digital switching for glitch-free state changesSILICON LAB INC·Filed 2006·Granted Dec 9, 2008·13 cites·21 claims
- 3888US11784649B2High gain detector techniques for high bandwidth low noise phase-locked loopsTEXAS INSTRUMENTS INC·Filed 2021·Granted Oct 10, 2023·2 cites·18 claims
- 3987US10389371B1Phase locked loop with switched-component loop filterSiTime Coporation·Filed 2018·Granted Aug 20, 2019·3 cites·20 claims
- 4087US6831523B1Auto-detection between referenceless and reference clock mode of operationSILICON LAB INC·Filed 2002·Granted Dec 14, 2004·54 cites·20 claims
- 4186US6856206B1Method and apparatus for acquiring a frequency without a reference clockSILICON LAB INC·Filed 2001·Granted Feb 15, 2005·41 cites·39 claims
- 4285US12224708B2Multi-phase oscillatorsTEXAS INSTRUMENTS INC·Filed 2021·Granted Feb 11, 2025·1 cites·26 claims
- 4384US10852199B1Temperature-compensated timing signal generatorSITIME CORP·Filed 2018·Granted Dec 1, 2020·1 cites·20 claims
- 4484US9203417B1Phase locked loop circuitry having switched resistor loop filter circuitry, and methods of operating sameSITIME CORP·Filed 2014·Granted Dec 1, 2015·3 cites·20 claims
- 4584US6988227B1Method and apparatus for bit error rate detectionSILICON LAB INC·Filed 2001·Granted Jan 17, 2006·39 cites·38 claims
- 4683US6686803B1Integrated circuit incorporating circuitry for determining which of at least two possible frequencies is present on an externally provided reference signal and method thereforSILICON LAB INC·Filed 2001·Granted Feb 3, 2004·39 cites·47 claims
- 4782US7205852B2Method and apparatus for acquiring a frequency without a reference clockSILICON LAB INC·Filed 2005·Granted Apr 17, 2007·11 cites·20 claims
- 4881US10578572B2CMOS integrated microheater for a gas sensor deviceINVENSENSE INC·Filed 2016·Granted Mar 3, 2020·3 cites·20 claims
- 4980US11747216B1Capacitor-referenced temperature sensingSiTime Coporation·Filed 2021·Granted Sep 5, 2023·0 cites·21 claims
- 5079US9461658B1High-gain locked-loop phase detectorSITIME CORP·Filed 2015·Granted Oct 4, 2016·2 cites·20 claims
Showing the top 50 of 85 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →