Patent ID: 9104277
Filing Date: 2015-08-11
Classification: G06F

Abstract:
1. A sensing method for a capacitive touch panel having a plurality of first traces in a first direction and a plurality of second traces in a second direction, the sensing method comprising the steps of: defining a plurality of stimulus regions based on the first traces and the second traces, wherein each first trace corresponds to at least two of the stimulus regions: sensing the first plurality of stimulus regions by providing a first signal for sensing the first traces and a second signal for stimulating the second traces, and by providing the first signal for sensing the second traces and the second signal for stimulating the first traces; obtaining and storing first calibration parameters for the first traces and second calibration parameters for the second traces; respectively deriving first ADC values and second ADC values of the stimulus regions according to a result of sensing the plurality of stimulus regions, the first calibration parameters and the second calibration parameters: and storing the first ADC values and the second ADC values of the stimulus regions for position calculation or multi-finger calculation to locate a real point; wherein the second signal is not simultaneously provided to all the first traces or all the second traces.