Inventor · disambiguated record
Gerald Dale Morrison
Also filed as: MORRISON GERALD · MORRISON GERALD D · MORRISON GERALD DALE
223 granted patents·39 pending applications·3,333 citations·filing 1997–2025
99Inventor score
Files withSIGMASENSE LLC213SMART TECHNOLOGIES ULC18MORRISON GERALD11SMART TECHNOLOGIES INC11MORRISON GERALD D4
Top patents by PatentIndex Score
262 records- 0199US11726652B2Identification in touch systemsSIGMASENSE LLC·Filed 2022·Granted Aug 15, 2023·6 cites·20 claims
- 0299US11669177B2Frequency diverse e-pen for touch sensor and e-pen systemsSIGMASENSE LLC·Filed 2021·Granted Jun 6, 2023·6 cites·20 claims
- 0399US11567465B2Motor control feedback and adaptationSIGMASENSE LLC·Filed 2021·Granted Jan 31, 2023·4 cites·20 claims
- 0499US11543900B2Communication protocol for touch sensor and e-pen systemsSIGMASENSE LLC·Filed 2021·Granted Jan 3, 2023·8 cites·20 claims
- 0599US11494006B2Erasure operable e-pen within touch sensor and e-pen systemsSIGMASENSE LLC·Filed 2021·Granted Nov 8, 2022·10 cites·20 claims
- 0699US11474685B2Redundant touch system operationSIGMASENSE LLC·Filed 2021·Granted Oct 18, 2022·11 cites·20 claims
- 0799US11402990B2User-interactive steering wheelSIGMASENSE LLC·Filed 2021·Granted Aug 2, 2022·6 cites·20 claims
- 0899US11237653B2Frequency diverse e-pen for touch sensor and e-pen systemsSIGMASENSE LLC·Filed 2020·Granted Feb 1, 2022·11 cites·20 claims
- 0999US11221704B2Screen-to-screen communication via touch sense elementsSIGMASENSE LLC·Filed 2020·Granted Jan 11, 2022·6 cites·16 claims
- 1099US11079888B1Sensitivity region of interest processing (ROIP) for input/output (I/O) operative touch sensor device (TSD)SIGMASENSE LLC·Filed 2020·Granted Aug 3, 2021·9 cites·20 claims
- 1199US10684977B1Low voltage drive circuit with bus isolation and methods for use therewithSIGMASENSE LLC·Filed 2019·Granted Jun 16, 2020·25 cites·18 claims
- 1299US10671034B1Motor drive input adaptation with in-line drive-sense circuitSIGMASENSE LLC·Filed 2019·Granted Jun 2, 2020·19 cites·20 claims
- 1399US10554215B1Analog to digital conversion circuit with very narrow bandpass digital filteringSIGMASENSE LLC·Filed 2019·Granted Feb 4, 2020·19 cites·18 claims
- 1499US7411575B2Gesture recognition method and touch system incorporating the sameSMART TECHNOLOGIES ULC·Filed 2003·Granted Aug 12, 2008·320 cites·40 claims
- 1598US11906564B2Analog and digital frequency domain data sensing circuitSIGMASENSE LLC·Filed 2022·Granted Feb 20, 2024·2 cites·19 claims
- 1698US11762548B2User-interactive glass featureSIGMASENSE LLC·Filed 2022·Granted Sep 19, 2023·4 cites·20 claims
- 1798US11740781B2Single user or few users identification and blocking operable touch sensor deviceSIGMASENSE LLC·Filed 2022·Granted Aug 29, 2023·3 cites·20 claims
- 1898US11714541B2Location and/or angle of approach user identification capable touch sensor deviceSIGMASENSE LLC·Filed 2022·Granted Aug 1, 2023·4 cites·20 claims
- 1998US11592915B2E-pen association within touch sensor and e-pen systemsSIGMASENSE LLC·Filed 2022·Granted Feb 28, 2023·4 cites·20 claims
- 2098US11567135B2Embedded monitoring electrodes for battery health monitoringSIGMASENSE LLC·Filed 2022·Granted Jan 31, 2023·2 cites·20 claims
- 2198US11460999B2Redundant touch systemSIGMASENSE LLC·Filed 2021·Granted Oct 4, 2022·4 cites·20 claims
- 2298US11269510B2Identification in touch systemsSIGMASENSE LLC·Filed 2020·Granted Mar 8, 2022·5 cites·20 claims
- 2398US10852857B2Frequency diverse e-pen for touch sensor and e-pen systemsSIGMASENSE LLC·Filed 2018·Granted Dec 1, 2020·17 cites·20 claims
- 2498US10845985B2Identification in touch systemsSIGMASENSE LLC·Filed 2018·Granted Nov 24, 2020·18 cites·20 claims
- 2598US7692625B2Camera-based touch systemSMART TECHNOLOGIES ULC·Filed 2001·Granted Apr 6, 2010·251 cites·56 claims
- 2698US7236162B2Passive touch system and method of detecting user inputSMART TECHNOLOGIES INC·Filed 2004·Granted Jun 26, 2007·148 cites·140 claims
- 2798US6803906B1Passive touch system and method of detecting user inputSMART TECHNOLOGIES INC·Filed 2000·Granted Oct 12, 2004·584 cites·109 claims
- 2897US11947746B2Communication protocol for touch sensor and e-pen systemsSIGMASENSE LLC·Filed 2022·Granted Apr 2, 2024·2 cites·20 claims
- 2997US11861082B2Erasure operable e-pen within touch sensor and e-pen systemsSIGMASENSE LLC·Filed 2022·Granted Jan 2, 2024·2 cites·20 claims
- 3097US11740067B2Capacitive imaging gloveSIGMASENSE LLC·Filed 2022·Granted Aug 29, 2023·2 cites·20 claims
- 3197US11693811B2Low voltage drive circuit with variable oscillating characteristics and methods for use therewithSIGMASENSE LLC·Filed 2023·Granted Jul 4, 2023·3 cites·20 claims
- 3297US11609652B2Computing device for screen-to-screen communicationSIGMASENSE LLC·Filed 2022·Granted Mar 21, 2023·3 cites·18 claims
- 3397US11592978B2Integrated touchscreen and external controllerSIGMASENSE LLC·Filed 2022·Granted Feb 28, 2023·2 cites·20 claims
- 3497US11340995B2Integrated circuit with programmable input/output moduleSIGMASENSE LLC·Filed 2020·Granted May 24, 2022·6 cites·26 claims
- 3597US11061082B2Single line hall effect sensor drive and senseSIGMASENSE LLC·Filed 2019·Granted Jul 13, 2021·6 cites·20 claims
- 3697US10917101B2Analog to digital conversion circuit with very narrow bandpass digital filteringSIGMASENSE LLC·Filed 2020·Granted Feb 9, 2021·4 cites·14 claims
- 3797US7643006B2Gesture recognition method and touch system incorporating the sameSMART TECHNOLOGIES ULC·Filed 2008·Granted Jan 5, 2010·53 cites·56 claims
- 3897US7532206B2System and method for differentiating between pointers used to contact touch surfaceSMART TECHNOLOGIES ULC·Filed 2003·Granted May 12, 2009·176 cites·43 claims
- 3996US12277312B2Single user or few users identification and blocking operable touch sensor deviceSIGMASENSE LLC·Filed 2023·Granted Apr 15, 2025·1 cites·20 claims
- 4096US11693497B2Signal diverse e-pen for touch sensor and e-pen systemsSIGMASENSE LLC·Filed 2022·Granted Jul 4, 2023·2 cites·20 claims
- 4196US11662847B2Touch screen sensor controller with drive sense circuitsSIGMASENSE LLC·Filed 2021·Granted May 30, 2023·3 cites·22 claims
- 4296US11586309B2Large touch screen display with integrated electrodesSIGMASENSE LLC·Filed 2021·Granted Feb 21, 2023·3 cites·19 claims
- 4396US11481059B2Control circuit for large touch screenSIGMASENSE LLC·Filed 2021·Granted Oct 25, 2022·3 cites·18 claims
- 4496US11429226B2Analog-digital drive sense circuitSIGMASENSE LLC·Filed 2021·Granted Aug 30, 2022·3 cites·18 claims
- 4596US11182038B2Encoded data pattern touchscreen sensing systemSIGMASENSE LLC·Filed 2020·Granted Nov 23, 2021·6 cites·14 claims
- 4696US11099032B2Drive sense circuit with drive-sense lineSIGMASENSE LLC·Filed 2018·Granted Aug 24, 2021·7 cites·22 claims
- 4796US11029782B2Light emitting diode (LED) touch display circuitSIGMASENSE LLC·Filed 2019·Granted Jun 8, 2021·4 cites·10 claims
- 4896US6972401B2Illuminated bezel and touch system incorporating the sameSMART TECHNOLOGIES INC·Filed 2003·Granted Dec 6, 2005·319 cites·69 claims
- 4996US6954197B2Size/scale and orientation determination of a pointer in a camera-based touch systemSMART TECHNOLOGIES INC·Filed 2002·Granted Oct 11, 2005·122 cites·68 claims
- 5096US6919880B2Calibrating camera offsets to facilitate object position determination using triangulationSMART TECHNOLOGIES INC·Filed 2001·Granted Jul 19, 2005·151 cites·33 claims
Showing the top 50 of 262 patent records by PatentIndex Score.
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