公开(公告)号：US20240090800A1

公开(公告)日：2024-03-21

申请号：US17933739

申请日：2022-09-20

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Stefano Paolo RIVOLTA ,  Roberto MURA

IPC: A61B5/1455 ,  A61B5/00 ,  A61B5/0205 ,  G01R31/28

CPC classification number: A61B5/14552 ,  A61B5/0205 ,  A61B5/681 ,  G01R31/2879 ,  A61B2560/0223

Abstract: The present disclosure is directed to a wearable electronic device, such as a watch, that includes one or more optical sensors. In order to determine accuracy of measurements by the optical sensors, the device detects whether or not the optical sensors are in physical contact with the user's skin. The device detects a level of contact between the user's skin and the optical sensors based on electrostatic charge variation measurements, and generates a contact reliability index (CRI) based on the level of contact. Operation of the optical sensors are adjusted based on the CRI.

公开(公告)号：US20240045514A1

公开(公告)日：2024-02-08

申请号：US17882206

申请日：2022-08-05

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Stefano Paolo RIVOLTA ,  Roberto MURA

IPC: G06F3/0346 ,  G06F1/3206 ,  G01P15/18 ,  G06F1/16

CPC classification number: G06F3/0346 ,  G06F1/3206 ,  G01P15/18 ,  G06F1/1618 ,  G06F1/1677

Abstract: The present disclosure is directed to pick-up state detection for an electronic device, such as a laptop. In a pick-up state, the device is picked or lifted up from a surface, such as a table. A power state of the device is adjusted in response to detecting the pick-up state. For example, the device is in a hibernate state while set on the table, and is switched to a working state in response to detecting the pick-up state.

公开(公告)号：US20230359262A1

公开(公告)日：2023-11-09

申请号：US18356963

申请日：2023-07-21

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Stefano Paolo RIVOLTA ,  Roberto MURA ,  Marco BIANCO

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

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.

公开(公告)号：US20230358541A1

公开(公告)日：2023-11-09

申请号：US18352969

申请日：2023-07-14

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：US20230023149A1

公开(公告)日：2023-01-26

申请号：US17379743

申请日：2021-07-19

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Stefano Paolo RIVOLTA ,  Roberto MURA ,  Marco BIANCO

IPC: G06F1/3231 ,  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.

公开(公告)号：US20220214168A1

公开(公告)日：2022-07-07

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: G01C19/60 ,  H03K17/945 ,  G01B7/00

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：US20220174203A1

公开(公告)日：2022-06-02

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 ,  H04N5/232

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：US20220080979A1

公开(公告)日：2022-03-17

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

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.