Inventor
Fleck David Charles
US25 patents
Patents
25 patentsUS9448646B1Sep 20, 2016
System and method for bidirectional communication between stylus and stylus sensor controller
WACOM CO LTD28 citations94
US10331235B2Jun 25, 2019
Stylus tilt detection based on bidirectional communication between stylus and stylus sensor controller
WACOM CO LTD20 citations93
US9785262B2Oct 10, 2017
System and method for bidirectional communication between stylus and stylus sensor controller
WACOM CO LTD9 citations92
US9639183B2May 2, 2017
System and method for bidirectional communication between stylus and stylus sensor controller
WACOM CO LTD15 citations92
US11397480B2Jul 26, 2022
Stylus and sensor control circuit
WACOM CO LTD3 citations73
US11144140B2Oct 12, 2021
System and method for bidirectional communication between stylus and stylus sensor controller
WACOM CO LTD1 citations73
US11003260B2May 11, 2021
Stylus and sensor control circuit
WACOM CO LTD3 citations73
US10359865B2Jul 23, 2019
Stylus, stylus signal processing method, and stylus signal processing device
WACOM CO LTD3 citations73
US9851819B2Dec 26, 2017
System and method for bidirectional communication between stylus and stylus sensor controller
WACOM CO LTD2 citations73
US10613651B2Apr 7, 2020
System and method for bidirectional communication between stylus and stylus sensor controller
WACOM CO LTD3 citations72
US10372245B2Aug 6, 2019
System and method for bidirectional communication between stylus and stylus sensor controller
WACOM CO LTD4 citations72
US9921667B2Mar 20, 2018
System and method for bidirectional communication between stylus and stylus sensor controller
WACOM CO LTD2 citations72
US10152145B2Dec 11, 2018
System and method for bidirectional communication between stylus and stylus sensor controller
WACOM CO LTD1 citations63
US12461610B2Nov 4, 2025
Stylus and sensor control circuit
WACOM CO LTD0 citations62
US12061754B2Aug 13, 2024
Stylus and sensor control circuit
WACOM CO LTD0 citations62
US9785275B2Oct 10, 2017
Contact discrimination using a tilt angle of a touch-sensitive surface
WACOM CO LTD3 citations60
US11327601B2May 10, 2022
Serial communication method and sensor controller
WACOM CO LTD0 citations52
US10852852B2Dec 1, 2020
System and method for bidirectional communication between stylus and stylus sensor controller
WACOM CO LTD0 citations52
US10691254B2Jun 23, 2020
Serial communication method and sensor controller
WACOM CO LTD0 citations52
US10558280B2Feb 11, 2020
System and method for bidirectional communication between stylus and stylus sensor controller
WACOM CO LTD0 citations52
US10488953B2Nov 26, 2019
System and method for bidirectional communication between stylus and stylus sensor controller
WACOM CO LTD0 citations52
US10216296B2Feb 26, 2019
System and method for bidirectional communication between stylus and stylus sensor controller
WACOM CO LTD0 citations52
US10073548B2Sep 11, 2018
Stylus having variable transmit signal strength, and sensor for detecting such stylus
WACOM CO LTD1 citations51
US10860118B2Dec 8, 2020
Method using active stylus and sensor controller, sensor controller, active stylus, and system
WACOM CO LTD0 citations42
US10452197B2Oct 22, 2019
Threshold based coordinate data generation providing tap assist
WACOM CO LTD0 citations32