Inventor · disambiguated record
Peter W. Richards
Also filed as: RICHARDS PETER · RICHARDS PETER W · RICHARDS PETER WINTHROP
80 granted patents·20 pending applications·1,811 citations·filing 2000–2025
99Inventor score
Top patents by PatentIndex Score
100 records- 0199US6388661B1Monochrome and color digital display systems and methodsREFLECTIVITY INC·Filed 2000·Granted May 14, 2002·239 cites·52 claims
- 0298US9282902B2Heart rate data collectionFITBIT INC·Filed 2015·Granted Mar 15, 2016·44 cites·30 claims
- 0398US6523961B2Projection system and mirror elements for improved contrast ratio in spatial light modulatorsREFLECTIVITY INC·Filed 2000·Granted Feb 25, 2003·191 cites·91 claims
- 0497US9662053B2Physiological data collectionFITBIT INC·Filed 2016·Granted May 30, 2017·81 cites·27 claims
- 0597US9392946B1Heart rate sensor with high-aspect-ratio photodetector elementFITBIT INC·Filed 2015·Granted Jul 19, 2016·100 cites·30 claims
- 0697US9014790B2Heart rate data collectionFITBIT INC·Filed 2014·Granted Apr 21, 2015·34 cites·28 claims
- 0796US10433739B2Multi-channel photoplethysmography sensorFITBIT INC·Filed 2017·Granted Oct 8, 2019·49 cites·18 claims
- 0896US10139959B2Self-calibration of force sensors and inertial compensationAPPLE INC·Filed 2013·Granted Nov 27, 2018·28 cites·26 claims
- 0996US9402552B2Heart rate data collectionFITBIT INC·Filed 2015·Granted Aug 2, 2016·42 cites·30 claims
- 1095US10568525B1Multi-wavelength pulse oximetryFITBIT INC·Filed 2016·Granted Feb 25, 2020·49 cites·30 claims
- 1195US10512407B2Heart rate data collectionFITBIT INC·Filed 2015·Granted Dec 24, 2019·40 cites·23 claims
- 1295US9775548B2Heart rate sensor with high-aspect-ratio photodetector elementFITBIT INC·Filed 2016·Granted Oct 3, 2017·36 cites·30 claims
- 1395US7315294B2Deinterleaving transpose circuits in digital display systemsTEXAS INSTRUMENTS INC·Filed 2003·Granted Jan 1, 2008·59 cites·26 claims
- 1494US10918289B1Ring for optically measuring biometric dataFITBIT INC·Filed 2019·Granted Feb 16, 2021·38 cites·20 claims
- 1594US9044149B2Heart rate data collectionFITBIT INC·Filed 2014·Granted Jun 2, 2015·86 cites·30 claims
- 1694US7459333B2Method for making a micromirror-based projection system with a programmable control unit for controlling a spatial light modulatorTEXAS INSTRUMENTS INC·Filed 2006·Granted Dec 2, 2008·31 cites·23 claims
- 1794US6856447B2Methods and apparatus for selectively updating memory cell arraysREFLECTIVITY INC·Filed 2003·Granted Feb 15, 2005·36 cites·13 claims
- 1893US7787170B2Micromirror array assembly with in-array pillarsTEXAS INSTRUMENTS INC·Filed 2004·Granted Aug 31, 2010·39 cites·35 claims
- 1993US6726333B2Projection display with multiply filtered lightREFLECTIVITY INC·Filed 2002·Granted Apr 27, 2004·61 cites·44 claims
- 2092US10386970B2Force determination based on capacitive sensingAPPLE INC·Filed 2014·Granted Aug 20, 2019·16 cites·15 claims
- 2192US9851828B2Touch force deflection sensorAPPLE INC·Filed 2013·Granted Dec 26, 2017·19 cites·17 claims
- 2292US7012592B2Spatial light modulator with charge-pump pixel cellREFLECTIVITY INC·Filed 2003·Granted Mar 14, 2006·43 cites·64 claims
- 2392US6980197B2Integrated driver for use in display systems having micromirrorsREFLECTIVITY INC·Filed 2005·Granted Dec 27, 2005·11 cites·21 claims
- 2492US6888521B1Integrated driver for use in display systems having micromirrorsREFLECTIVITY INC·Filed 2003·Granted May 3, 2005·43 cites·5 claims
- 2591US11051706B1Multiple source-detector pair photoplethysmography (PPG) sensorFITBIT INC·Filed 2018·Granted Jul 6, 2021·18 cites·17 claims
- 2691US10966643B1Wearable non-invasive carbon monoxide inhalation trackingFITBIT INC·Filed 2019·Granted Apr 6, 2021·15 cites·19 claims
- 2791US9983715B2Force detection in touch devices using piezoelectric sensorsAPPLE INC·Filed 2013·Granted May 29, 2018·16 cites·23 claims
- 2891US9660646B1Multiple controllers for a capacitive sensing deviceAPPLE INC·Filed 2014·Granted May 23, 2017·10 cites·20 claims
- 2990US9743838B2Circuits and methods for photoplethysmographic sensorsFITBIT INC·Filed 2015·Granted Aug 29, 2017·11 cites·25 claims
- 3090US6958846B2Spatial light modulators with light absorbing areasREFLECTIVITY INC·Filed 2002·Granted Oct 25, 2005·40 cites·140 claims
- 3189US10168814B2Force sensing based on capacitance changesAPPLE INC·Filed 2013·Granted Jan 1, 2019·12 cites·16 claims
- 3288US10282014B2Operating multiple functions in a display of an electronic deviceAPPLE INC·Filed 2013·Granted May 7, 2019·11 cites·20 claims
- 3388US10162444B2Force sensor incorporated into displayAPPLE INC·Filed 2015·Granted Dec 25, 2018·5 cites·6 claims
- 3488US6809977B1Method for reading and writing memory cells of spatial light modulators used in display systemsREFLECTIVITY INC·Filed 2003·Granted Oct 26, 2004·34 cites·14 claims
- 3587US7196684B2Spatial light modulator with charge-pump pixel cellTEXAS INSTRUMENTS INC·Filed 2006·Granted Mar 27, 2007·6 cites·20 claims
- 3686US9730644B1Circuits and methods for selecting a mode of operation of a photoplethysmographic sensorFITBIT INC·Filed 2016·Granted Aug 15, 2017·7 cites·24 claims
- 3784US9763584B2Intermeshing light barrier features in optical physiological parameter measurement deviceFITBIT INC·Filed 2016·Granted Sep 19, 2017·6 cites·30 claims
- 3883US10540036B2Multiple controllers for a capacitive sensing deviceAPPLE INC·Filed 2017·Granted Jan 21, 2020·2 cites·20 claims
- 3983US7307775B2Methods for depositing, releasing and packaging micro-electromechanical devices on wafer substratesTEXAS INSTRUMENTS INC·Filed 2002·Granted Dec 11, 2007·35 cites·161 claims
- 4082US11998304B2Ring for optically measuring biometric dataFITBIT INC·Filed 2020·Granted Jun 4, 2024·1 cites·17 claims
- 4181US9990087B2Compensation for nonlinear variation of gap capacitance with displacementAPPLE INC·Filed 2013·Granted Jun 5, 2018·6 cites·24 claims
- 4281US7499065B2Asymmetrical switching delay compensation in display systemsTEXAS INSTRUMENTS INC·Filed 2004·Granted Mar 3, 2009·21 cites·57 claims
- 4381US7027205B2Methods and apparatus for selectively updating memory cell arraysREFLECTIVITY INC·Filed 2004·Granted Apr 11, 2006·32 cites·42 claims
- 4479US10874345B2Automated detection of breathing disturbancesFITBIT INC·Filed 2019·Granted Dec 29, 2020·2 cites·20 claims
- 4579US8797282B2Touch sensor with secondary sensor and ground shieldLYON BENJAMIN B·Filed 2010·Granted Aug 5, 2014·5 cites·23 claims
- 4678US7498648B2Mirror-based projection system with a programmable control unit for controlling a spatial light modulatorTEXAS INSTRUMENTS INC·Filed 2006·Granted Mar 3, 2009·6 cites·61 claims
- 4778US7215458B2Deflection mechanisms in micromirror devicesTEXAS INSTRUMENTS INC·Filed 2004·Granted May 8, 2007·13 cites·78 claims
- 4876US7375873B2Method of repairing micromirrors in spatial light modulatorsTEXAS INSTRUMENTS INC·Filed 2005·Granted May 20, 2008·6 cites·20 claims
- 4976US6756976B2Monochrome and color digital display systems and methods for implementing the sameREFLECTIVITY INC·Filed 2002·Granted Jun 29, 2004·13 cites·50 claims
- 5076US2023218181A1Devices and Methods for Controlling Inflation Rate in Blood Pressure MeasurementsFITBIT INC·Filed 2023·Application pending·0 cites
Showing the top 50 of 100 patent records by PatentIndex Score.
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