US 12,169,614 B2
Sensitivity region of interest processing (ROIP) for input/output (I/O) operative touch sensor device (TSD)
Patrick Troy Gray, Cedar Park, TX (US); Gerald Dale Morrison, Redmond, WA (US); Daniel Keith Van Ostrand, Leander, TX (US); Richard Stuart Seger, Jr., Belton, TX (US); Kevin Joseph Derichs, Buda, TX (US); Shayne X. Short, College Station, TX (US); and Timothy W. Markison, Mesa, AZ (US)
Assigned to SIGMASENSE, LLC., Austin, TX (US)
Filed by SIGMASENSE, LLC., Wilmington, DE (US)
Filed on May 8, 2023, as Appl. No. 18/144,535.
Application 18/144,535 is a continuation of application No. 17/383,588, filed on Jul. 23, 2021, granted, now 11,681,402.
Application 17/383,588 is a continuation of application No. 16/793,078, filed on Feb. 18, 2020, granted, now 11,079,888, issued on Aug. 3, 2021.
Prior Publication US 2023/0305663 A1, Sep. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/044 (2006.01); G06F 3/01 (2006.01)
CPC G06F 3/0445 (2019.05) [G06F 3/016 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A touch sensor device (TSD) comprising:
a plurality of TSD electrodes associated with a surface of the TSD, wherein a 3-D object that includes one or more marker electrodes also being associated with a region of the surface of the TSD;
a plurality of drive-sense circuits (DSCs) operably coupled to the plurality of TSD electrodes, wherein, when enabled, a DSC of the plurality of DSCs is configured to service a TSD electrode and to generate a digital signal that is representative of a change of impedance of the TSD electrode caused by capacitive coupling between the TSD electrode and the one or more marker electrodes;
memory that stores operational instructions; and
one or more processing modules operably coupled to the plurality of DSCs and the memory, wherein, when enabled, the one or more processing modules is configured to execute the operational instructions to:
determine the region of the surface of the TSD that is associated with the 3-D object based on the digital signal; and
adapt sensitivity of the TSD within the region of the surface of the TSD that is associated with the 3-D object differently than a remaining portion of the TSD not included with the region of the surface of the TSD that is associated with the 3-D object.