公开(公告)号：US11516409B2

公开(公告)日：2022-11-29

申请号：US17527989

申请日：2021-11-16

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Federico Rizzardini ,  Lorenzo Bracco ,  Roberto Mura ,  Stefano Paolo Rivolta

IPC: H04N5/235

Abstract: A device includes a charge variation sensor having at one or more electrodes. The charge variation sensor, in operation, generates a charge variation signal indicative of changes in an electric or electrostatic charge induced on the one or more electrodes by an alternating current power source. Processing circuitry, coupled to the charge variation sensor, generates a frequency spectrum signal based on the charge variation signal and identifies a frequency of operation associated with the alternating current power source based on the generated frequency spectrum signal. A control signal is generated based on the identified frequency of operation. An image acquisition device sets an image acquisition frequency based on the control signal.

公开(公告)号：US11407098B2

公开(公告)日：2022-08-09

申请号：US16696772

申请日：2019-11-26

Applicant: STMICROELECTRONICS S.R.L. ,  STMICROELECTRONICS, INC.

Inventor： Marco Bianco ,  Lorenzo Bracco ,  Mahesh Chowdhary ,  Roberto Mura ,  Stefano Paolo Rivolta ,  Federico Rizzardini

IPC: B25F5/00 ,  B23B45/00 ,  G01C19/00

Abstract: A device for generating a control signal based on the linear movement of a linear member is provided. The device includes a linear member, a rotatable member, a first inertial measurement unit (IMU) coupled to the rotatable member and a second IMU having a fixed position. The device also includes a processing circuit which uses sensing signals from the IMUS to determine an attitude of the first IMU referenced to the second IMU and generate a control signal based on the attitude.