公开(公告)号：US20210103345A1

公开(公告)日：2021-04-08

申请号：US17122999

申请日：2020-12-15

Applicant: STMICROELECTRONICS S.r.l. ,  STMICROELECTRONICS, INC.

Inventor： Stefano Paolo Rivolta ,  Mahaveer Jain ,  Ashish Bhargava

IPC: G06F3/0346 ,  G06F3/0487

Abstract: Digital signal processing circuitry, in operation, determines, based on accelerometer data, a carry-position of a device. Double-tap detection parameters are set using the determined carry-position. Double-taps are detected using the set double-tap detection parameters. In response to detection of a double-tap, control signals, such as a flag or an interrupt signal, are generated and used to control operation of the device. For example, a device may enter a wake mode of operation in response to detection of a double-tap.

公开(公告)号：US10901529B2

公开(公告)日：2021-01-26

申请号：US16040331

申请日：2018-07-19

Applicant: STMICROELECTRONICS S.r.l. ,  STMICROELECTRONICS, INC.

Inventor： Stefano Paolo Rivolta ,  Mahaveer Jain ,  Ashish Bhargava

IPC: G06F3/0346 ,  G06F3/0487

Abstract: Digital signal processing circuitry, in operation, determines, based on accelerometer data, a carry-position of a device. Double-tap detection parameters are set using the determined carry-position. Double-taps are detected using the set double-tap detection parameters. In response to detection of a double-tap, control signals, such as a flag or an interrupt signal, are generated and used to control operation of the device. For example, a device may enter a wake mode of operation in response to detection of a double-tap.

公开(公告)号：US11579710B2

公开(公告)日：2023-02-14

申请号：US17122999

申请日：2020-12-15

Applicant: STMICROELECTRONICS S.r.l. ,  STMICROELECTRONICS, INC.

Inventor： Stefano Paolo Rivolta ,  Mahaveer Jain ,  Ashish Bhargava

IPC: G06F3/0346 ,  G06F3/0487

Abstract: Digital signal processing circuitry, in operation, determines, based on accelerometer data, a carry-position of a device. Double-tap detection parameters are set using the determined carry-position. Double-taps are detected using the set double-tap detection parameters. In response to detection of a double-tap, control signals, such as a flag or an interrupt signal, are generated and used to control operation of the device. For example, a device may enter a wake mode of operation in response to detection of a double-tap.

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.

公开(公告)号：US11719718B2

公开(公告)日：2023-08-08

申请号：US17375297

申请日：2021-07-14

Applicant: STMicroelectronics S.r.l.

Inventor： Stefano Paolo Rivolta ,  Federico Rizzardini

IPC: G01P15/18 ,  G06N20/00 ,  G01P15/14

CPC classification number: G01P15/18 ,  G01P15/14 ,  G06N20/00

Abstract: An embodiment system includes: a first motion sensor configured to generate first sensor data indicative of a first type of movement of an electronic device; a first feature detection circuit configured to determine at least one orientation-independent feature based on the first sensor data; and a classifying circuit configured to determine whether or not the electronic device is located on a stationary surface based on the at least one orientation-independent feature.

公开(公告)号：US11037436B2

公开(公告)日：2021-06-15

申请号：US16296016

申请日：2019-03-07

Applicant: STMicroelectronics S.r.l.

Inventor： Stefano Paolo Rivolta ,  Federico Rizzardini ,  Daniele Arceri ,  Alessandra Maria Rizzo Piazza Roncoroni ,  Marco Bianco

IPC: G08C17/00 ,  G07C9/00 ,  B60R25/40 ,  B60R25/24

Abstract: A remote access device and methods of operation thereof are provided for accessing a physical object or location. The remote access device includes an accelerometer, a wireless transmitter, and control circuitry. The control circuitry causes the wireless transmitter to transition between a first operating mode and a second operating mode in response to receiving signals from the accelerometer indicating a first change in motion states of the remote access device. The control circuitry causes the wireless transmitter to transition between a first operating mode and a second operating mode in response to receiving signals from the accelerometer indicating a second change in motion states of the remote access device. The control circuitry further causes the wireless transmitter to transition between the first operating mode and the second operating mode in response to receiving signals from the accelerometer indicating a third change in motion states of the remote access device.

公开(公告)号：US20210034167A1

公开(公告)日：2021-02-04

申请号：US16922752

申请日：2020-07-07

Applicant: STMicroelectronics S.r.l.

Inventor： Federico Rizzardini ,  Lorenzo Bracco ,  Stefano Paolo Rivolta

IPC: G06F3/038

Abstract: A gesture-recognition system for a digital-pen-like device, envisages: at least one motion sensor to provide at least one motion signal indicative of movements of the digital-pen-like device; a gesture-recognition signal processor, coupled to the at least one motion sensor to process the motion signal and to implement a plurality of gesture recognition algorithms based on the motion signal, each of the gesture recognition algorithms being configured to recognize a corresponding gesture performed by a user of the digital-pen-like device; and a controller coupled to the gesture-recognition signal processor and transmitting gesture-recognition data indicative of a recognized gesture towards a host apparatus, with which the digital-pen-like device is associated.

公开(公告)号：US20210033402A1

公开(公告)日：2021-02-04

申请号：US16932526

申请日：2020-07-17

Applicant: STMicroelectronics S.r.l.

Inventor： Paolo Rosingana ,  Alessandra Maria Rizzo Piazza Roncoroni ,  Federico Rizzardini ,  Lorenzo Bracco ,  Stefano Paolo Rivolta ,  Marco Bianco

IPC: G01C21/18 ,  G06F1/3206 ,  G06F3/0346

Abstract: An embodiment inertial measurement system includes: at least one motion sensor to output motion data with an output data rate (ODR) period; and a control unit coupled to the motion sensor to control operation thereof based on a power mode switching, according to which each ODR period includes: a first phase, in which the motion sensor is controlled in a condition of low power consumption; and a subsequent measurement phase, in which the motion sensor is controlled to perform measurements for generation of measurement data. The control unit adaptively adjusts the duration of the ODR period based on at least one check related to the measurement data generated during the measurement phase.

公开(公告)号：US12050738B2

公开(公告)日：2024-07-30

申请号：US18099372

申请日：2023-01-20

Applicant: STMicroelectronics S.r.l.

Inventor： Federico Rizzardini ,  Lorenzo Bracco ,  Stefano Paolo Rivolta ,  Marco Bianco ,  Paolo Rosingana ,  Alessandra Maria Rizzo Piazza Roncoroni

IPC: G06F3/0346 ,  G06F3/038 ,  G01P15/18

CPC classification number: G06F3/0346 ,  G06F3/038 ,  G01P15/18

Abstract: A pointing electronic device is provided with: an inertial measurement module, to generate motion input data, indicative of motion of the pointing electronic device, at an input data rate; a pointing determination unit, to implement a pointing algorithm at a processing data rate based on the motion input data, to generate screen-frame displacement data corresponding to 3D-space movements of the pointing electronic device, the processing data rate being higher than the input data rate. The pointing electronic device is further provided with a rate upscaling unit, interposed between the inertial measurement module and the pointing determination unit, to implement a data-rate upscaling of the motion input data, to generate upscaled motion input data to be processed by the pointing determination unit at a data rate matching the processing data rate, via a predictive data reconstruction of missing samples based on the actual motion input data.

公开(公告)号：US11921548B2

公开(公告)日：2024-03-05

申请号：US18047187

申请日：2022-10-17

Applicant: STMICROELECTRONICS S.r.l.

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

IPC: G06F1/16

CPC classification number: G06F1/1677

Abstract: The present disclosure is directed to a detection method of a first or second state of a foldable electronic device including a first and a second hardware element tiltable to each other and accommodating a first and a second electrode which are in contact with each other when the foldable electronic device is in the first state and at a distance from each other otherwise. The detection method includes: acquiring a first and a second charge variation signal indicative of environmental electric/electrostatic charge variations detected by the first and second electrodes; generating a differential signal indicative of a difference between the first and the second charge variation signals; generating, as a function of the differential signal, one or more feature signals; and generating, as a function of the one or more feature signals, a contact signal indicative of the first or second states of the foldable electronic device.