Patent ID: 11921548
Assignee: STMICROELECTRONICS S.R.L.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. The foldable electronic device according to claim 16, wherein
the first hardware element includes a third electrostatic charge variation sensor having a third electrode, and the second hardware element includes a fourth electrostatic charge variation sensor having a fourth electrode,
the third electrostatic charge variation sensor configured to measure a change in electrostatic charge detected by the third electrode and induced by the surrounding environment, and generate a third electrostatic charge variation signal indicating the change in electrostatic charge detected by the third electrode,
the fourth electrostatic charge variation sensor configured to measure a change in electrostatic charge detected by the fourth electrode and induced by the surrounding environment, and generate a fourth electrostatic charge variation signal indicating the change in electrostatic charge detected by the fourth electrode,
the third and fourth electrodes are in contact with each other when the lid angle is a third angle between 355° and 365°, are at a distance from each other when the lid angle is a fourth angle different from the third angle, and
the control circuitry, in operation:
acquires the third electrostatic charge variation signal and the fourth electrostatic charge variation signal;
generates a further differential signal indicative of a difference between the third and fourth electrostatic charge variation signals;
generates, as a function of the further differential signal, one or more further feature signals indicative of respective features of the further differential signal; and
generates, as a function of the one or more further feature signals, a further contact signal which is equal to a value selected from equal to the first value and the second value, the first value being indicative of the fourth angle, the second value being indicative of the third angle.