Inventor · disambiguated record
Kirk Hargreaves
Also filed as: HARGREAVES KIRK
56 granted patents·2 pending applications·1,121 citations·filing 2004–2023
98Inventor score
Top patents by PatentIndex Score
58 records- 0198US7683641B2Methods and systems for detecting a capacitance using sigma-delta measurement techniquesSYNAPTICS INC·Filed 2008·Granted Mar 23, 2010·59 cites·27 claims
- 0298US7521941B2Methods and systems for detecting a capacitance using switched charge transfer techniquesSYNAPTICS INC·Filed 2007·Granted Apr 21, 2009·80 cites·26 claims
- 0398US7453270B2Methods and systems for detecting a capacitance using sigma-delta measurement techniquesSYNAPTICS INC·Filed 2007·Granted Nov 18, 2008·64 cites·25 claims
- 0498US7301350B2Methods and systems for detecting a capacitance using sigma-delta measurement techniquesSYNAPTICS INC·Filed 2006·Granted Nov 27, 2007·141 cites·49 claims
- 0598US7288946B2Methods and systems for detecting a capacitance using sigma-delta measurement techniquesSYNAPTICS INC·Filed 2006·Granted Oct 30, 2007·159 cites·36 claims
- 0697US7777501B2Methods and systems for sigma delta capacitance measuring using shared componentSYNAPTICS INC·Filed 2007·Granted Aug 17, 2010·40 cites·25 claims
- 0797US7449895B2Methods and systems for detecting a capacitance using switched charge transfer techniquesSYNAPTICS INC·Filed 2006·Granted Nov 11, 2008·49 cites·67 claims
- 0897US7451050B2Methods and systems for detecting noise in a position sensor using minor shifts in sensing frequencySYNAPTICS INC·Filed 2006·Granted Nov 11, 2008·73 cites·26 claims
- 0997US7423437B2Methods and systems for detecting a capacitance using sigma-delta measurement techniquesSYNAPTICS INC·Filed 2007·Granted Sep 9, 2008·48 cites·18 claims
- 1097US7031886B1Methods and systems for detecting noise in a position sensor using minor shifts in sensing frequencySYNAPTICS INC·Filed 2004·Granted Apr 18, 2006·166 cites·36 claims
- 1194US8638107B2Transcapacitive sensor devices with ohmic seamsSCHWARTZ ADAM·Filed 2010·Granted Jan 28, 2014·22 cites·24 claims
- 1293US8847899B2Systems and methods for signaling and interference detection in sensor devicesWASHBURN CLYDE·Filed 2011·Granted Sep 30, 2014·25 cites·20 claims
- 1393US8258797B2Capacitive sensor interference determinationSHAHPARNIA SHAHROOZ·Filed 2009·Granted Sep 4, 2012·20 cites·17 claims
- 1492US9977519B2Active pen with bidirectional communicationSYNAPTICS INC·Filed 2016·Granted May 22, 2018·20 cites·24 claims
- 1591US11048367B2Capacitive sensor deviceSYNAPTICS INC·Filed 2017·Granted Jun 29, 2021·9 cites·20 claims
- 1691US9933867B2Active pen capacitive displacement gaugeSYNAPTICS INC·Filed 2015·Granted Apr 3, 2018·8 cites·17 claims
- 1790US7977954B2Methods and systems for sigma delta capacitance measuring using shared componentsSYNAPTICS INC·Filed 2010·Granted Jul 12, 2011·12 cites·21 claims
- 1887US9958993B2Active matrix capacitive fingerprint sensor with 1-TFT pixel architecture for display integrationSYNAPTICS INC·Filed 2015·Granted May 1, 2018·6 cites·20 claims
- 1987US9354264B2Transcapacitive sensor devices with seamsSYNAPTICS INC·Filed 2013·Granted May 31, 2016·7 cites·18 claims
- 2087US7948245B2Methods and systems for detecting a capacitance using sigma-delta measurement techniquesSYNAPTICS INC·Filed 2010·Granted May 24, 2011·5 cites·19 claims
- 2186US11868555B2Low latency input object detection under low ground mass conditionSYNAPTICS INC·Filed 2023·Granted Jan 9, 2024·1 cites·20 claims
- 2286US8711120B2Single integrated circuit configured to operate both a capacitive proximity sensor device and a resistive pointing stickHARGREAVES KIRK·Filed 2012·Granted Apr 29, 2014·20 cites·22 claims
- 2384US9608613B2Efficient high voltage square wave generatorSYNAPTICS INC·Filed 2015·Granted Mar 28, 2017·5 cites·20 claims
- 2484US9417738B2Untethered active pen and a method for communicating with a capacitive sensing device using the untethered active penHARGREAVES KIRK·Filed 2009·Granted Aug 16, 2016·13 cites·22 claims
- 2583US9804213B2Capacitive sensor deviceREYNOLDS JOSEPH KURTH·Filed 2010·Granted Oct 31, 2017·5 cites·20 claims
- 2683US8415958B2Single layer capacitive image sensingHARGREAVES KIRK·Filed 2010·Granted Apr 9, 2013·7 cites·20 claims
- 2782US9218095B2Non-linear feedback capacitance sensingSYNAPTICS INC·Filed 2013·Granted Dec 22, 2015·6 cites·20 claims
- 2881US8730204B2Systems and methods for signaling and interference detection in sensor devicesWASHBURN CLYDE·Filed 2011·Granted May 20, 2014·6 cites·20 claims
- 2980US8743080B2System and method for signaling in sensor devicesHARGREAVES KIRK·Filed 2011·Granted Jun 3, 2014·5 cites·20 claims
- 3080US7902842B2Methods and systems for switched charge transfer capacitance measuring using shared componentsSYNAPTICS INC·Filed 2007·Granted Mar 8, 2011·10 cites·25 claims
- 3179US10976432B2Acoustic locationing for smart environmentsSYNAPTICS INC·Filed 2019·Granted Apr 13, 2021·3 cites·20 claims
- 3277US10126874B2Active pen panel receiver interference cancellationSYNAPTICS INC·Filed 2016·Granted Nov 13, 2018·2 cites·20 claims
- 3376US9880209B2Capacitive sensing on large touch screensSYNAPTICS INC·Filed 2015·Granted Jan 30, 2018·1 cites·17 claims
- 3473US7924029B2Half-bridge for capacitive sensingSYNAPTICS INC·Filed 2006·Granted Apr 12, 2011·7 cites·31 claims
- 3572US7750649B2Methods and systems for detecting a capacitance using switched charge transfer techniquesSYNAPTICS INC·Filed 2009·Granted Jul 6, 2010·4 cites·21 claims
- 3668US10816582B2Sigma-delta configurations for capacitance sensingSYNAPTICS INC·Filed 2018·Granted Oct 27, 2020·1 cites·20 claims
- 3766US9703436B2Hybrid large dynamic range capacitance sensingSYNAPTICS INC·Filed 2015·Granted Jul 11, 2017·1 cites·20 claims
- 3865US9541588B2Current-mode coarse-baseline-correctionSYNAPTICS INC·Filed 2013·Granted Jan 10, 2017·1 cites·21 claims
- 3964US10180736B2Pen with inductorSYNAPTICS INC·Filed 2015·Granted Jan 15, 2019·1 cites·18 claims
- 4064US8352202B2System and method for detecting interfernce in a sensor device using phase shiftingSYNAPTICS INC·Filed 2009·Granted Jan 8, 2013·4 cites·21 claims
- 4162US12019832B2Low ground mass mitigation for pensSYNAPTICS INC·Filed 2022·Granted Jun 25, 2024·0 cites·19 claims
- 4262US9395824B2Active pen with improved interference performanceSYNAPTICS INC·Filed 2014·Granted Jul 19, 2016·1 cites·17 claims
- 4362US8884635B2Transcapacitive charge measurementHARGREAVES KIRK·Filed 2012·Granted Nov 11, 2014·2 cites·20 claims
- 4461US11592925B1Low latency input object detection under low ground mass conditionSYNAPTICS INC·Filed 2021·Granted Feb 28, 2023·0 cites·14 claims
- 4560US10095948B2Modulation scheme for fingerprint sensingSYNAPTICS INC·Filed 2015·Granted Oct 9, 2018·1 cites·21 claims
- 4660US9190997B2Capacitive sensor interference determinationSHAHPARNIA SHAHROOZ·Filed 2012·Granted Nov 17, 2015·1 cites·10 claims
- 4759US10126867B2Matched filter for a first order sigma delta capacitance measurement system and a method to determine the sameSYNAPTICS INC·Filed 2018·Granted Nov 13, 2018·0 cites·20 claims
- 4857US11004883B2System and method for optical sensingSYNAPTICS INC·Filed 2019·Granted May 11, 2021·0 cites·20 claims
- 4956US11899753B2Low-light image selection for neural network trainingSYNAPTICS INC·Filed 2021·Granted Feb 13, 2024·0 cites·20 claims
- 5052US10055045B2Current feedback digital charge accumulatorSYNAPTICS INC·Filed 2014·Granted Aug 21, 2018·0 cites·19 claims
Showing the top 50 of 58 patent records by PatentIndex Score.
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