公开(公告)号：US11747142B2

公开(公告)日：2023-09-05

申请号：US16399842

申请日：2019-04-30

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

Inventor： Mahaveer Jain ,  Mahesh Chowdhary ,  Roberto Mura ,  Nicola Matteo Palella ,  Leonardo Colombo

IPC: G01C21/16 ,  G01C21/20 ,  G01S19/49

CPC classification number: G01C21/165 ,  G01C21/20 ,  G01S19/49

Abstract: A device including microelectromechanical systems (MEMS) sensors are used in dead reckoning in conditions where Global Positioning System (GPS) signals or Global Navigation Satellite System (GNSS) signals are lost. The device is capable of tracking the location of the device after the GPS/GNSS signals are lost by using MEMS sensors such as accelerometers and gyroscopes. By calculating a misalignment angle between a forward axis of a sensor frame of the device and a forward axis of a vehicle frame using the data received from the MEMS sensors, the device can accurately calculate the location of a user or the vehicle of the device even without the GPS/GNSS signals. Accordingly, a device capable of tracking the location of the user riding in the vehicle in GPS/GNSS signals absent environment can be provided.

公开(公告)号：US11834054B2

公开(公告)日：2023-12-05

申请号：US17470962

申请日：2021-09-09

Applicant: STMICROELECTRONICS S.r.l. ,  STMICROELECTRONICS, INC. ,  STMicroelectronics (Grand Ouest) SAS

Inventor： Nicola Matteo Palella ,  Leonardo Colombo ,  Andrea Donadel ,  Roberto Mura ,  Mahaveer Jain ,  Joëlle Philippe

IPC: B60W40/11 ,  B60W40/101 ,  B60W40/112 ,  B60W40/114 ,  G01S19/47

CPC classification number: B60W40/101 ,  B60W40/11 ,  B60W40/112 ,  B60W40/114 ,  G01S19/47 ,  B60W2520/28

Abstract: A system includes inertial sensors and a GPS. The system generates a first estimated vehicle velocity based on motion data and positioning data, generates a second estimated vehicle velocity based on the processed motion data and the first estimated vehicle velocity, and generates fused datasets indicative of position, velocity and attitude of a vehicle based on the processed motion data, the positioning data and the second estimated vehicle velocity. The generating the second estimated vehicle velocity includes: filtering the motion data, transforming the filtered motion data in a frequency domain based on the first estimated vehicle velocity, generating spectral power density signals, generating an estimated wheel angular frequency and an estimated wheel size based on the spectral power density signals, and generating the second estimated vehicle velocity as a function of the estimated wheel angular frequency and the estimated wheel size.

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：US12164357B2

公开(公告)日：2024-12-10

申请号：US18356963

申请日：2023-07-21

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Stefano Paolo Rivolta ,  Roberto Mura ,  Marco Bianco

IPC: G06F1/32 ,  G01P15/14 ,  G01R29/12 ,  G06F1/3231

Abstract: The present disclosure is directed to a device configured to detect whether the device is in a bag or being taken out of the bag. The device determines whether the device is in a bag or being taken out of the bag based on motion measurements generated by a motion sensor and electrostatic charge measurements generated by an electrostatic charge sensor. By using both distance measurements and motion measurements, the device is able to detect whether the device is in the bag or being taken out of the bag with high efficiency, accuracy, and robustness.

公开(公告)号：US11942107B2

公开(公告)日：2024-03-26

申请号：US17183288

申请日：2021-02-23

Applicant: STMICROELECTRONICS S.r.l.

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

IPC: G10L25/78 ,  G06N5/01 ,  G06N20/10 ,  G10L25/09 ,  G10L25/30 ,  G10L25/51 ,  H04R25/00 ,  G10L15/16 ,  G10L19/26

CPC classification number: G10L25/78 ,  G06N5/01 ,  G06N20/10 ,  G10L25/09 ,  G10L25/30 ,  G10L25/51 ,  H04R25/40 ,  H04R25/505 ,  H04R25/604 ,  G10L15/16 ,  G10L19/26

Abstract: The present disclosure is directed to a device and method for detecting presence or absence of human speech. The device and method utilize a low-power accelerometer. The device and method generate an acceleration signal using the accelerometer, filter the acceleration signal with a band pass filter or a high pass filter, determine at least one calculation of the filtered acceleration signal, detect a presence or absence of a voice based on the at least one calculation, and output a detection signal that indicates the presence or absence of the voice. The device and method are well suited for portable audio devices, such as true wireless stereo headphones, that have a limited power supply.

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.

公开(公告)号：US11599178B2

公开(公告)日：2023-03-07

申请号：US17168110

申请日：2021-02-04

Applicant: STMICROELECTRONICS S.r.l.

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

IPC: G06F1/00 ,  G06F1/3206 ,  G06N20/00 ,  G06F1/16 ,  G06F1/3296

Abstract: An electronic device has sensing circuitry and control circuitry. The control circuitry generates, based on generated sensor data, information indicative of movement of the electronic device. The control circuitry generates control signals to control operation of the electronic device in a plurality of power states, including a working-power state, an intermediate-power state and a low-power state, based on the information indicative of movement.

公开(公告)号：US12247849B2

公开(公告)日：2025-03-11

申请号：US17459781

申请日：2021-08-27

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Stefano Paolo Rivolta ,  Roberto Mura

IPC: G01D21/02 ,  A61B5/11 ,  A61B5/24 ,  G01P15/00 ,  G01R29/12

Abstract: The present disclosure is directed to a device with enhanced human activity recognition. The device detects a human activity using one more motion sensors, and enhances the detected human activity depending on whether the device is in an indoor environment or an outdoor environment. The device utilizes one or more electrostatic charge sensors to determine whether the device is in an indoor environment or an outdoor environment.

公开(公告)号：US11821732B2

公开(公告)日：2023-11-21

申请号：US17144016

申请日：2021-01-07

Applicant: STMICROELECTRONICS S.r.l.

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

IPC: H01J37/32 ,  G01C19/60 ,  G01B7/00 ,  H03K17/945 ,  H01J37/317

CPC classification number: G01C19/60 ,  G01B7/003 ,  H03K17/945

Abstract: The present disclosure is directed to a device configured to detect whether the device is in a bag or outside of the bag. The device determines whether the device is in or outside of the bag based on distance measurements generated by at least one proximity sensor and motion measurements generated by at least one motion sensor. By using both distance measurements and motion measurements, the device is able to detect whether the device is in the bag or outside of the bag with high accuracy and robustness.

公开(公告)号：US11755095B2

公开(公告)日：2023-09-12

申请号：US17379743

申请日：2021-07-19

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Stefano Paolo Rivolta ,  Roberto Mura ,  Marco Bianco

IPC: G06F1/32 ,  G06F1/3231 ,  G01R29/12 ,  G01P15/14

CPC classification number: G06F1/3231 ,  G01P15/14 ,  G01R29/12

Abstract: The present disclosure is directed to a device configured to detect whether the device is in a bag or being taken out of the bag. The device determines whether the device is in a bag or being taken out of the bag based on motion measurements generated by a motion sensor and electrostatic charge measurements generated by an electrostatic charge sensor. By using both distance measurements and motion measurements, the device is able to detect whether the device is in the bag or being taken out of the bag with high efficiency, accuracy, and robustness.