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

Claim 5:
6. A method comprises:
receiving, by an encoded data pattern touchscreen sensing computing device, a set of detected changes in electrical characteristics of a set of drive-sense circuits of a plurality of drive-sense circuits of the encoded data pattern touchscreen sensing computing device, wherein the plurality of drive-sense circuits, when in close proximity to an encoded data pattern, detect changes in electrical characteristics of a plurality of electrodes of a touchscreen of the encoded data pattern touchscreen sensing computing device 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;
filtering, by the encoded data pattern touchscreen sensing computing device, the set of changes in electrical characteristics in accordance with a set of bandpass frequency ranges to produce a set of filtered signals;
interpreting, by the encoded data pattern touchscreen sensing computing device, 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
interpreting, by the encoded data pattern touchscreen sensing computing device, the set of impedance values to determine the data.