公开(公告)号：US11280634B2

公开(公告)日：2022-03-22

申请号：US16433874

申请日：2019-06-06

Applicant: STMicroelectronics S.r.l.

Inventor： Stefano Paolo Rivolta ,  Andrea Labombarda ,  Alberto Zancanato

IPC: G01C22/00

Abstract: An activity tracking device, such as a step-counting device includes an interface configured to receive one or more acceleration signals and signal processing circuitry. The signal processing circuitry generates an indication of condition of an accelerometer, such as a body position of the accelerometer, based on one or more accelerometer signals, generates an event signal, such as an event flag, based on one or more accelerometer signals and the indication of the condition of the accelerometer, and generates an activity signal, such as step flag based on the event signal, the indication of the condition of the accelerometer and one or more acceleration signals. The signal processing circuitry may generate a noise signal based on one or more acceleration signals and generate the activity signal based on the noise signal.

公开(公告)号：US20210286447A1

公开(公告)日：2021-09-16

申请号：US17191320

申请日：2021-03-03

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

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, in order 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：US10942578B2

公开(公告)日：2021-03-09

申请号：US16566759

申请日：2019-09-10

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Stefano Paolo Rivolta ,  Federico Rizzardini

IPC: G06F3/01 ,  H04M1/725

Abstract: A system recognizes a gesture of bringing a mobile electronic device to a user ear. The system may be integrated in the mobile electronic device and is provided with a movement sensor which provides a movement signal indicative of the movement of the mobile electronic device. A pressure sensor provides a pressure signal indicative of a pressure acting on the mobile electronic device during the movement. A processing stage performs a joint processing of the movement signal and of the pressure signal in order to recognize the gesture.

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：US20200286366A1

公开(公告)日：2020-09-10

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：US12175024B2

公开(公告)日：2024-12-24

申请号：US18048360

申请日：2022-10-20

Applicant: STMicroelectronics S.r.l.

Inventor： Stefano Paolo Rivolta ,  Federico Rizzardini

IPC: G06F3/0346 ,  G06F3/0354

Abstract: A method includes receiving electrostatic sensor data in a processor of an electronic device from an electrostatic sensor mounted behind a touchscreen of the electronic device and using the electrostatic sensor data to determine when the touchscreen is being used. Based on whether or not the touchscreen is being used, an on-table detection (OTD) algorithm is selected from a plurality of available OTD algorithms. In one or more examples, the OTD algorithm may also be selected based on the current device mode of the electronic device, which may be determined from a lid angle, a screen angle, and a keyboard angle of the electronic device. The selected OTD algorithm is run to determine whether or not the electronic device is located on a stationary or stable surface.

公开(公告)号：US12143764B2

公开(公告)日：2024-11-12

申请号：US17686322

申请日：2022-03-03

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Federico Rizzardini ,  Lorenzo Bracco ,  Andrea Labombarda ,  Mauro Bardone ,  Stefano Paolo Rivolta ,  Federico Iaccarino

IPC: H04R1/10 ,  G06F3/044 ,  H03K17/96

Abstract: The present disclosure is directed to input detection for electronic devices using electrostatic charge sensors. The devices and methods disclosed herein utilize electrostatic charge sensors to detect various touch gestures, such as long and short touches, single/double/triple taps, and swipes; and perform in-ear detection.

公开(公告)号：US20240231510A9

公开(公告)日：2024-07-11

申请号：US18048360

申请日：2022-10-20

Applicant: STMicroelectronics S.r.l.

Inventor： Stefano Paolo Rivolta ,  Federico Rizzardini

IPC: G06F3/0346 ,  G06F3/0354

CPC classification number: G06F3/0346 ,  G06F3/03547

Abstract: A method includes receiving electrostatic sensor data in a processor of an electronic device from an electrostatic sensor mounted behind a touchscreen of the electronic device and using the electrostatic sensor data to determine when the touchscreen is being used. Based on whether or not the touchscreen is being used, an on-table detection (OTD) algorithm is selected from a plurality of available OTD algorithms. In one or more examples, the OTD algorithm may also be selected based on the current device mode of the electronic device, which may be determined from a lid angle, a screen angle, and a keyboard angle of the electronic device. The selected OTD algorithm is run to determine whether or not the electronic device is located on a stationary or stable surface.

公开(公告)号：US20240134468A1

公开(公告)日：2024-04-25

申请号：US18048360

申请日：2022-10-19

Applicant: STMicroelectronics S.r.l.

Inventor： Stefano Paolo Rivolta ,  Federico Rizzardini

IPC: G06F3/0346 ,  G06F3/0354

CPC classification number: G06F3/0346 ,  G06F3/03547

Abstract: A method includes receiving electrostatic sensor data in a processor of an electronic device from an electrostatic sensor mounted behind a touchscreen of the electronic device and using the electrostatic sensor data to determine when the touchscreen is being used. Based on whether or not the touchscreen is being used, an on-table detection (OTD) algorithm is selected from a plurality of available OTD algorithms. In one or more examples, the OTD algorithm may also be selected based on the current device mode of the electronic device, which may be determined from a lid angle, a screen angle, and a keyboard angle of the electronic device. The selected OTD algorithm is run to determine whether or not the electronic device is located on a stationary or stable surface.

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.