Patent ID: 11910148
Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. The apparatus according to claim 16, wherein the processing module is further configured to:
if the first differential capacitance value is greater than the differential capacitance reference value, determine the calibrated latest differential capacitance reference value as:

c(ref)calibrated=c(ref)+(c(min)−c(ref))*k1; or,, if the first differential capacitance value is less than the differential capacitance reference value, determine the calibrated latest differential capacitance reference value as:

c(ref)calibrated=c(ref)+(c(min)−c(ref))*k2,

wherein c(ref) is the differential capacitance reference value, c(ref)calibrated is the calibrated latest differential capacitance reference value, c(min) is the first differential capacitance value, k1 and k2 are calibration coefficients, k1 is greater than or equal to 0 and less than 1, k2 is greater than or equal to 0 and less than 1, and k1 is greater than k2.