CPC G06F 3/03545 (2013.01) [G06F 3/0442 (2019.05)] | 15 Claims |
1. An electronic device, comprising:
an active digital pen sensor surface to generate analog position information, wherein the active digital pen sensor surface includes a projective capacitive sensor layer with a variance of sheet resistance of less than plus or minus 20 percent; and
a controller, including a sigma-delta analog-to-digital (A-to-D) converter, to generate digital pen position information based on the analog position information, and perform a triangulation based on the digital pen position information to determine a pen position.
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