US 12,079,429 B2
Compensated enhanced capacitance touch screen display and methods for use therewith
Richard Stuart Seger, Jr., Belton, TX (US); Michael Shawn Gray, Elgin, TX (US); Daniel Keith Van Ostrand, Leander, TX (US); Hans Howard Eilers, Leander, TX (US); Kevin Joseph Derichs, Buda, TX (US); Sarah Marie Derichs, Buda, TX (US); Patrick Troy Gray, Cedar Park, TX (US); and Phuong Huynh, Fairfax, VA (US)
Assigned to SigmaSense, LLC., Austin, TX (US)
Filed by SigmaSense, LLC., Wilmington, DE (US)
Filed on May 17, 2023, as Appl. No. 18/318,991.
Application 18/318,991 is a continuation of application No. 17/934,659, filed on Sep. 23, 2022, granted, now 11,720,207.
Application 17/934,659 is a continuation of application No. 17/578,738, filed on Jan. 19, 2022, granted, now 11,494,032, issued on Nov. 8, 2022.
Application 17/578,738 is a continuation of application No. 17/201,360, filed on Mar. 15, 2021, granted, now 11,269,456, issued on Mar. 8, 2022.
Application 17/578,738 is a continuation of application No. 17/184,031, filed on Feb. 24, 2021, granted, now 11,340,727, issued on May 24, 2022.
Application 17/201,360 is a continuation of application No. 17/161,109, filed on Jan. 28, 2021, granted, now 11,269,455, issued on Mar. 8, 2022.
Application 17/161,109 is a continuation of application No. 16/857,600, filed on Apr. 24, 2020, granted, now 10,963,093, issued on Mar. 30, 2021.
Application 16/857,600 is a continuation of application No. 16/253,717, filed on Jan. 22, 2019, granted, now 10,664,098, issued on May 26, 2020.
Application 16/253,717 is a continuation in part of application No. 16/109,600, filed on Aug. 22, 2018, granted, now 10,678,372, issued on Jun. 9, 2020.
Application 16/109,600 is a continuation of application No. 15/506,097, granted, now 10,120,498, issued on Nov. 6, 2018, previously published as PCT/US2016/038497, filed on Jun. 21, 2016.
Claims priority of provisional application 63/104,973, filed on Oct. 23, 2020.
Claims priority of provisional application 62/630,595, filed on Feb. 14, 2018.
Claims priority of provisional application 62/620,812, filed on Jan. 23, 2018.
Claims priority of provisional application 62/183,062, filed on Jun. 22, 2015.
Prior Publication US 2023/0289015 A1, Sep. 14, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01)
CPC G06F 3/04182 (2019.05) [G06F 3/0412 (2013.01); G06F 3/0446 (2019.05)] 20 Claims
OG exemplary drawing
 
1. A touch screen display 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 first subset of electrodes and a second subset of electrodes, wherein the first subset of electrodes is separated from the second subset of electrodes by a dielectric material and wherein the first subset of electrodes and the second subset of 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;
a processing module that includes at least one memory that stores operational instructions and at least one processing circuit that executes the instructions to perform operations that include:
receiving the plurality of sensed signals, wherein the sensed signals indicate variations in mutual capacitance associated with the plurality of cross points;
generating based on the plurality of sensed signals, capacitance image data associated with the plurality of cross points that includes positive capacitance variation data corresponding to positive variations of the capacitance image data from a nominal value and negative capacitance variation data corresponding to negative variations of the capacitance image data from the nominal value;
determining, based on the positive capacitance variation data and the negative capacitance variation data, an upper threshold and a lower threshold;
generating compensated capacitance image data, based on the upper threshold and the lower threshold; and
processing the compensated capacitance image data to determine a proximal condition of the touch screen display.