Patent ID: 11965923
Assignee: STMICROELECTRONICS S.R.L.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 12:
13. The method of claim 12 wherein the first self-test includes:
generating, by the electrostatic charge variation sensor, a first electrostatic charge variation measurement;
applying the constant voltage signal to the stimulus electrode in a case where the first electrostatic charge variation measurement is greater than a first threshold value;
generating, by the electrostatic charge variation sensor, a second electrostatic charge variation measurement in response to the constant voltage signal being applied to the stimulus electrode;
determining the electrostatic charge variation sensor passed the first self-test in a case where the second electrostatic charge variation measurement is less than a second threshold value; and
determining the electrostatic charge variation sensor failed the first self-test in a case where the second electrostatic charge variation measurement is not less than the second threshold value.