公开(公告)号：US20220229887A1

公开(公告)日：2022-07-21

申请号：US17646981

申请日：2022-01-04

Applicant: STMicroelectronics S.r.I.

Inventor： Enrico Rosario Alessi ,  Simone Ferri ,  Fabio Passaniti

IPC: G06F21/31 ,  G06F3/041 ,  H04R1/08 ,  G01P13/00

Abstract: To recognize an authorized user from an unauthorized user of a portable electronic apparatus, the portable electronic apparatus has a plurality of sensors and a user-recognition circuit. The sensors are each configured to generate a signal representative of a respective physical quantity associated with the use, by a user, of the portable electronic apparatus in an operating state. The user-recognition circuit is configured to receive a plurality of electrical signals from the plurality of sensors; determine a plurality of recognition parameters, each associated with a specific mode of use of the portable electronic apparatus by the user; determine a plurality of indicators of use, one for each recognition parameter, wherein each parameter indicates the probability that, at a time instant, the respective recognition parameter is associable with an unauthorized user; determine a probability of intrusion from the plurality of indicators of use; and compare the probability of intrusion with an intrusion threshold.