Patent ID: 11947761
Assignee: SIGMASENSE, LLC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. An encoded data pattern touchscreen sensing computing device comprises:
a touchscreen;
a plurality of electrodes integrated into the touchscreen;
a plurality of drive-sense circuits coupled to the plurality of electrodes, wherein, when enabled and in close proximity to an encoded data pattern, the plurality of drive-sense circuits detect changes in electrical characteristics of the plurality of electrodes caused by one or more electrical materials of the encoded data pattern, wherein the encoded data pattern includes the one or more electrical materials arranged in a pattern, and wherein electrical properties of the one or more electrical materials and the pattern are representative of data; and
a processing module operably coupled to:
receive, from a set of drive-sense circuits of the plurality of drive-sense circuits, a set of detected changes in electrical characteristics of the set of drive-sense circuits;
filter the set of detected changes in electrical characteristics in accordance with a set of bandpass frequency ranges to produce a set of filtered signals; and
interpret the set of filtered signals to identify a set of impedance values representative of the one or more electrical materials of the encoded data pattern; and
interpret the set of impedance values to determine the data.