公开(公告)号：US20210312778A1

公开(公告)日：2021-10-07

申请号：US17217647

申请日：2021-03-30

Applicant: STMicroelectronics S.r.l.

Inventor： Fabio PASSANITI ,  Enrico Rosario ALESSI

IPC: G08B13/24 ,  G01R29/14

Abstract: A method for presence detection in an environment to be monitored, includes generating an electric charge signal in a condition of absence of presence in the environment to be monitored. An electric charge signal is generated in an operating condition in which a person may be present in the environment. The two generated signals are processed and the results of the processing are compared. Processing the signals includes representing in a biaxial reference system the value of the charge signal considered and its derivative with respect to time, and identifying a plurality of points in the reference system. By comparing the position of the points acquired during the possible human presence with those of the base shape, a variation indicating the actual human presence may be detected. In this case an alarm signal is generated.

公开(公告)号：US20210081032A1

公开(公告)日：2021-03-18

申请号：US17017414

申请日：2020-09-10

Applicant: STMicroelectronics S.r.l.

Inventor： Fabio PASSANITI ,  Enrico Rosario ALESSI

IPC: G06F3/01 ,  G01P15/08 ,  G06N20/00 ,  G06F17/18

Abstract: A system for detecting steps of a user includes processing circuitry and a sensor configured to detect a variation of electrostatic charge of the user during a step of the user and generate a charge-variation signal. An accelerometer is configured to detect an acceleration as a consequence of the step and generate an acceleration signal. The processing circuitry is configured to: acquire the charge-variation signal; acquire the acceleration signal; detect, in the charge-variation signal, a first characteristic identifying the step; detect, in the acceleration signal, a second characteristic identifying the step. If both of the first and second characteristics have been detected, the presence of the step can be validated.

公开(公告)号：US20240191708A1

公开(公告)日：2024-06-13

申请号：US18584642

申请日：2024-02-22

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Michele Alessio DELLUTRI ,  Fabio PASSANITI ,  Enrico Rosario ALESSI

IPC: F04B43/12 ,  F04B49/06

CPC classification number: F04B43/12 ,  F04B49/06

Abstract: Various embodiments provide a device for measuring the flow of fluid inside a tube moved by a peristaltic pump is provided with: a detection electrode arrangement coupled to the tube to detect an electrostatic charge variation originated by the mechanical action of the peristaltic pump on the tube; a signal processing stage, electrically coupled to the detection electrode arrangement to generate an electrical charge variation signal; and a processing unit, coupled to the signal processing stage to receive and process in the frequency domain the electrical charge variation signal to obtain information on the flow of a fluid that flows through the tube based on the analysis of frequency characteristics of the electrical charge variation signal.

公开(公告)号：US20240074676A1

公开(公告)日：2024-03-07

申请号：US18456227

申请日：2023-08-25

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Enrico Rosario ALESSI ,  Fabio PASSANITI ,  Oriana Rita Antonia DI MARCO

IPC: A61B5/11 ,  A61B5/00 ,  A61B5/349

CPC classification number: A61B5/1102 ,  A61B5/349 ,  A61B5/7239 ,  A61B5/725 ,  A61B2562/0219

Abstract: A system for measuring cardiac parameters uses a movements sensor to generate a seismocardiographic signal and a cardiac parameters calculation unit. The cardiac parameters calculation unit provides for generating an envelope signal correlated to the seismocardiographic signal; identifies, in the envelope signal, signal segments having a repetitive pattern; identifies, among the signal segments, pairs of successive peaks such that a first peak of each pair of successive peaks is a systolic peak and a second peak of each pair of successive peaks is a diastolic peak; and calculates a systolic period and a diastolic period for each pair of successive peaks.

公开(公告)号：US20230236234A1

公开(公告)日：2023-07-27

申请号：US17581553

申请日：2022-01-21

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Fabio PASSANITI ,  Daniele DE PASCALIS ,  Enrico Rosario ALESSI

IPC: G01R29/24

CPC classification number: G01R29/24

Abstract: The present disclosure is directed to self-tests for electrostatic charge variation sensors. The self-tests ensure an electrostatic charge variation sensor is functioning properly. The self-tests may be performed while an electrostatic charge variation sensor is active and without interruption to the application employing the electrostatic charge variation sensor.

公开(公告)号：US20220308003A1

公开(公告)日：2022-09-29

申请号：US17840212

申请日：2022-06-14

Applicant: STMicroelectronics S.r.l.

Inventor： Fabio PASSANITI ,  Enrico Rosario ALESSI

IPC: G01N27/12 ,  G01N33/00

Abstract: A sensor is driven at a first heating power value. The sensor generates a sensing signal that is indicative of a sensed entity. A possible onset of a sensor contamination condition is detected as a function of the sensing signal generated by the sensor. If such detecting fails to indicate onset of a sensor contamination condition, the sensor continues to be driven at the first heating power value. However, if such detecting indicates onset of a sensor contamination condition, a protection mode is activated. In the protection mode, the sensor is driven at a second heating power value for a protection interval, where the second heating power value is lower than the first heating power value. Furthermore, the operation may refrain from supplying power to the sensor for a further protection interval, wherein the further protection interval is longer than the protection interval.

公开(公告)号：US20240183719A1

公开(公告)日：2024-06-06

申请号：US18061918

申请日：2022-12-05

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Enrico Rosario ALESSI ,  Fabio PASSANITI ,  Antonella LICCIARDELLO ,  Daniele BALDACCHINO

IPC: G01J5/0806 ,  G01J5/05 ,  G01J5/068

CPC classification number: G01J5/0806 ,  G01J5/05 ,  G01J5/068

Abstract: A sensor device includes a passive infrared sensor, a control circuit, and a lens that directs infrared radiation onto the passive infrared sensor. The lens includes an obstruction that asymmetrically blocks transmission of infrared radiation through the lens. The control circuit is configured to determine the direction of crossing of individuals passing in front of the sensor device based on sensor signals from the passive infrared sensor.

公开(公告)号：US20230045861A1

公开(公告)日：2023-02-16

申请号：US17871463

申请日：2022-07-22

Applicant: STMicroelectronics S.r.l.

Inventor： Fabio PASSANITI ,  Enrico Rosario ALESSI

IPC: B60W40/06 ,  B60W40/105 ,  G01R29/12 ,  G01R29/24

Abstract: A road condition detection device, to be coupled to the wheel of a vehicle, is provided with: an electrostatic charge variation sensor, to provide a charge variation signal indicative of an electrostatic charge variation associated with the rotation of the wheel; and a processing unit, coupled to the electrostatic charge variation sensor to receive the charge variation signal and furthermore for receiving a rotation speed signal indicative of the rotation speed of the wheel. In particular, the processing unit jointly processes the rotation speed signal and the charge variation signal to detect a road condition of a wet road condition and a dry road condition.

公开(公告)号：US20230045064A1

公开(公告)日：2023-02-09

申请号：US17881473

申请日：2022-08-04

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Enrico Rosario ALESSI ,  Fabio PASSANITI ,  Nunziata Ivana GUARNERI

IPC: G10L15/22 ,  H04R1/46

Abstract: Voice command recognition and natural language recognition are carried out using an accelerometer that senses signals from the vibrations of one or more bones of a user and receives no audio input. Since word recognition is made possible using solely the signal from the accelerometer from a person's bone conduction as they speak, an acoustic microphone is not needed and thus not used to collect data for word recognition. According to one embodiment, a housing contains an accelerometer and a processor, both within the same housing. The accelerometer is preferably a MEMS accelerometer which is capable of sensing the vibrations that are present in the bone of a user as the user is speaking words. A machine learning algorithm is applied to the collected data to correctly recognize words spoken by a person with significant difficulties in creating audible language.

公开(公告)号：US20230023062A1

公开(公告)日：2023-01-26

申请号：US17867170

申请日：2022-07-18

Applicant: STMicroelectronics S.r.l.

Inventor： Enrico Rosario ALESSI ,  Fabio PASSANITI ,  Michele Alessio DELLUTRI

IPC: G06F1/3231 ,  G06F1/3296 ,  G06F1/3234

Abstract: A control method of an apparatus is provided. The apparatus includes a control unit coupled to a proximity sensor to detect a first distance of a user in a field of view, and coupled to a charge variation sensor to detect an electric/electrostatic charge variation caused by the user in a detection region. The control method includes acquiring a charge variation signal and generating charge variation parameters as a function of the charge variation signal. The control method further includes determining whether a condition on charge variation parameters is verified, and if the condition on charge variation parameters is verified, activating the proximity sensor and acquiring a proximity signal. Proximity parameters are generated as a function of the proximity signal. If a condition on proximity parameters is verified, one or more functionalities of the apparatus are activated.