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

Claim 5:
6. The method according to claim 2, wherein the determining the latest differential capacitance reference value according to the first differential capacitance value and the differential capacitance reference value comprises:
when an absolute value of the difference between the first differential capacitance value and the differential capacitance reference value is greater than a preset first threshold, determining to calibrate the differential capacitance reference value; or,
when the absolute value of the difference between the first differential capacitance value and the differential capacitance reference value is less than or equal to the preset first threshold, determining not to calibrate the differential capacitance reference value, the first threshold being used to indicate that the double-layer capacitive sensors are in an abnormal state.