US 12,079,533 B2
Generating written user notation data for display based on detecting an impedance pattern of a writing passive device
Richard Stuart Seger, Jr., Belton, TX (US); Michael Shawn Gray, Elgin, TX (US); Patrick Troy Gray, Cedar Park, TX (US); Daniel Keith Van Ostrand, Leander, TX (US); and Kevin Joseph Derichs, Buda, TX (US)
Assigned to SigmaSense, LLC., Austin, TX (US)
Filed by SigmaSense, LLC., Wilmington, DE (US)
Filed on Sep. 19, 2023, as Appl. No. 18/469,832.
Application 18/469,832 is a continuation of application No. 18/053,528, filed on Nov. 8, 2022, granted, now 11,829,677.
Application 18/053,528 is a continuation of application No. 17/445,027, filed on Aug. 13, 2021, granted, now 11,556,298, issued on Jan. 17, 2023.
Claims priority of provisional application 63/203,806, filed on Jul. 30, 2021.
Prior Publication US 2024/0004602 A1, Jan. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/044 (2006.01); G06F 3/041 (2006.01); G06F 3/04883 (2022.01); G06F 3/14 (2006.01); G06F 21/31 (2013.01)
CPC G06F 3/1423 (2013.01) [G06F 3/0416 (2013.01); G06F 3/0446 (2019.05); G06F 3/04883 (2013.01); G06F 21/31 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An interactive display device comprises:
a display configured to render frames of data into visible images;
a plurality of electrodes integrated into the display to facilitate touch sense functionality based on electrode signals having a drive signal component and a receive signal component, wherein the plurality of electrodes includes a plurality of row electrodes and a plurality of column electrodes, wherein the plurality of row electrodes is separated from the plurality of column electrodes by a dielectric material and wherein the plurality of row electrodes and the plurality of row electrodes form a plurality of cross points;
a plurality of drive-sense circuits coupled to at least some of the plurality of electrodes to generate a plurality of sensed signals, wherein each the plurality of drive-sense circuits includes a first conversion circuit and a second conversion circuit, and wherein, when a drive-sense circuit of the plurality of drive-sense circuits is enabled to monitor a corresponding electrode of the plurality of electrodes, the first conversion circuit is configured to convert the receive signal component into a sensed signal of the plurality of sensed signals and the second conversion circuit is configured to generate the drive signal component from the sensed signal of the plurality of sensed signals; and
a processing module that includes at least one memory that stores operational instructions and at least one processing circuit that executes the operational instructions so that the interactive display device is configured to:
receive a first plurality of sensed signals during a first temporal period, wherein the first plurality of sensed signals indicate a first plurality of changes in electrical characteristics of a set of electrodes of the plurality of electrodes;
detect a first impedance pattern identifying a writing passive device based on interpreting the first plurality of changes in the electrical characteristics of the set of electrodes during the first temporal period;
identify the writing passive device based on the first plurality of changes in the electrical characteristics of the set of electrodes, wherein the writing passive device is identified based on detecting the first impedance pattern;
determine, by the processing module, written user notion data based on detecting movement of the writing passive device in relation to the interactive display device during the first temporal period;
process the written user notation data for display, via the display, in accordance with at least one display setting corresponding to the writing passive device based on identifying the writing passive device based on detecting the first impedance pattern;
receive a second plurality of sensed signals, wherein the first plurality of sensed signals indicate a second plurality of changes in electrical characteristics of the plurality of electrodes;
identifying, by the processing module, a second writing passive device in proximity to the interactive display device by detecting a second impedance pattern identifying the second writing passive device based on interpreting at least one second change in the electrical characteristics of the set of electrodes, wherein the second impedance pattern is different from the first impedance pattern;
determining, by the processing module, second written user notion data based on interpreting the at least one second change in the electrical characteristics of the set of electrodes induced via movement of the second writing passive device in relation to the interactive display device; and
process the second written user notation data for display, via the display, in accordance with at least one second display setting corresponding to the second writing passive device based on identifying the second writing passive device, wherein the at least one second display setting is different from the at least one display setting based on the second impedance pattern being different from the first impedance pattern.