Inventor · disambiguated record
Keen-Hun Leong
Also filed as: LEONG KEEN HUN
25 granted patents·3 pending applications·141 citations·filing 2005–2024
94Inventor score
Files withPIXART IMAGING INC22LEONG KEEN HUN2MURPHY THOMAS2AVAGO TECHNOLOGIES ECBUIP PTE1PIXART IMAGING PENANG SDN BHD1
Top patents by PatentIndex Score
28 records- 0195US10871385B2Optical encoder capable of identifying absolute positions and operating method thereofPIXART IMAGING INC·Filed 2019·Granted Dec 22, 2020·38 cites·20 claims
- 0293US8334849B2Firmware methods and devices for a mutual capacitance touch sensing deviceMURPHY THOMAS·Filed 2009·Granted Dec 18, 2012·35 cites·9 claims
- 0392US11585651B2Optical positioning system having high resolutionPIXART IMAGING INC·Filed 2021·Granted Feb 21, 2023·2 cites·20 claims
- 0492US11105608B2Optical positioning system and operating method thereofPIXART IMAGING INC·Filed 2019·Granted Aug 31, 2021·4 cites·20 claims
- 0592US10121255B2Optical sensor for odometry tracking to determine trajectory of a wheelPIXART IMAGING PENANG SDN BHD·Filed 2015·Granted Nov 6, 2018·12 cites·6 claims
- 0688US12039111B1Optical navigation method and optical navigation devicePIXART IMAGING INC·Filed 2023·Granted Jul 16, 2024·1 cites·18 claims
- 0787US8669960B2Firmware methods and devices for a mutual capacitance touch sensing devicePIXART IMAGING INC·Filed 2013·Granted Mar 11, 2014·8 cites·5 claims
- 0884US8553009B2Firmware methods and devices for a mutual capacitance touch sensing devicePIXART IMAGING INC·Filed 2012·Granted Oct 8, 2013·6 cites·11 claims
- 0984US8279197B2Method and apparatus for detecting defective traces in a mutual capacitance touch sensing deviceMURPHY THOMAS·Filed 2009·Granted Oct 2, 2012·15 cites·41 claims
- 1082US7399956B2Optical encoder with sinusoidal photodetector output signalAVAGO TECHNOLOGIES ECBUIP PTE·Filed 2005·Granted Jul 15, 2008·16 cites·19 claims
- 1178US12100165B2Optical sensor for odometry tracking to determine trajectory of a wheelPIXART IMAGING INC·Filed 2023·Granted Sep 24, 2024·0 cites·14 claims
- 1278US10613155B2Short circuit testing method for capacitive sensing device and the capacitive sensing devicePIXART IMAGING INC·Filed 2017·Granted Apr 7, 2020·2 cites·8 claims
- 1374US12018927B2Optical positioning system determining positions based on last passed edgePIXART IMAGING INC·Filed 2023·Granted Jun 25, 2024·0 cites·20 claims
- 1474US2025025010A1Mobile robot performing cliff detectionPIXART IMAGING INC·Filed 2024·Application pending·0 cites
- 1573US8736570B2Firmware methods and devices for a mutual capacitance touch sensing devicePIXART IMAGING INC·Filed 2012·Granted May 27, 2014·2 cites·4 claims
- 1672US11748893B2Optical sensor for odometry tracking to determine trajectory of a wheelPIXART IMAGING INC·Filed 2021·Granted Sep 5, 2023·0 cites·6 claims
- 1767US11189036B2Optical sensor for odometry tracking to determine trajectory of a wheelPIXART IMAGING INC·Filed 2020·Granted Nov 30, 2021·0 cites·6 claims
- 1862US12137855B2Mobile robot and cliff detection method thereofPIXART IMAGING INC·Filed 2021·Granted Nov 12, 2024·0 cites·20 claims
- 1962US10643335B2Optical sensor for odometry tracking to determine trajectory of a wheelPIXART IMAGING INC·Filed 2018·Granted May 5, 2020·0 cites·6 claims
- 2058US11965968B2Optical sensing system and optical sensing methodPIXART IMAGING INC·Filed 2020·Granted Apr 23, 2024·0 cites·14 claims
- 2154US11079857B2Optical detecting devicePIXART IMAGING INC·Filed 2019·Granted Aug 3, 2021·0 cites·21 claims
- 2253US11893753B2Security camera and motion detecting method for security cameraPIXART IMAGING INC·Filed 2020·Granted Feb 6, 2024·0 cites·7 claims
- 2353US10210412B2Optical encoder capable of identifying absolute positions and operating method thereofPIXART IMAGING INC·Filed 2016·Granted Feb 19, 2019·0 cites·20 claims
- 2452US11486893B2Optical sensing system and optical navigation systemPIXART IMAGING INC·Filed 2020·Granted Nov 1, 2022·0 cites·17 claims
- 2550US11049264B2Marker detecting device and optical tracking devicePIXART IMAGING INC·Filed 2019·Granted Jun 29, 2021·0 cites·8 claims
- 2642US11922666B2Object presence detection using raw imagesPIXART IMAGING INC·Filed 2021·Granted Mar 5, 2024·0 cites·16 claims
- 2736US2008114902A1I/O module with embedded configuration software for industrial applicationsLEONG KEEN HUN·Filed 2006·Application pending·0 cites
- 2833US2008114685A1System and method for preventing unauthorized installation of a software programLEONG KEEN HUN·Filed 2006·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Keen-Hun Leong files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →