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.

公开(公告)号：US20220145873A1

公开(公告)日：2022-05-12

申请号：US17519294

申请日：2021-11-04

Applicant: STMICROELECTRONICS S.r.l.

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

IPC: 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：US20210253419A1

公开(公告)日：2021-08-19

申请号：US17175410

申请日：2021-02-12

Applicant: STMicroelectronics S.r.l.

Inventor： Enrico Rosario ALESSI ,  Fabio PASSANITI

IPC: B81B7/00 ,  B81B7/02 ,  G06N3/08

Abstract: An analysis method of a device through a MEMS sensor is provided in which the MEMS sensor includes a control unit and a sensing assembly coupled to the device. The analysis method includes acquiring, through the sensing assembly, first data indicative of an operative state of the device. Testing is performed for the presence of a first abnormal operating condition of the device. If the first abnormal operating condition of the device is confirmed, a self-test of the sensing assembly is performed to generate a quantity indicative of an operative state of the sensing assembly. The self-test includes acquiring, through the sensing assembly, second data indicative of the operative state of the sensing assembly, generating a signature according to the second data, and processing the signature through deep learning techniques to generate said quantity.

公开(公告)号：US20210003524A1

公开(公告)日：2021-01-07

申请号：US16917285

申请日：2020-06-30

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Fabio PASSANITI ,  Enrico Rosario ALESSI

IPC: G01N27/04 ,  G01N33/00

Abstract: A method of operating a gas sensing device is described. The method includes receiving a signal indicative of a value of resistance of a gas sensing element, processing the signal received to compute a value of a gas concentration, performing a comparison of the value of gas concentration to a threshold, and, based on the outcome of a diagnosis procedure, setting the device to an alert signal issue state as a function of the outcome of the comparison. The diagnosis procedure includes computing a set of parameters indicative of the state of the gas sensor circuit, and classifying the gas sensor circuit in one of a first, a second and a third class based on the parameters.

公开(公告)号：US20240081660A1

公开(公告)日：2024-03-14

申请号：US18243361

申请日：2023-09-07

Applicant: STMicroelectronics S.r.l.

Inventor： Enrico Rosario ALESSI ,  Enri DUQI ,  Fabio PASSANITI

IPC: A61B5/0205 ,  A61B5/00 ,  A61B5/01

CPC classification number: A61B5/02055 ,  A61B5/0008 ,  A61B5/0022 ,  A61B5/01 ,  A61B5/6817 ,  A61B5/6824 ,  H04R1/1016 ,  H04R2420/07

Abstract: An earphone device has a casing having a measurement portion dedicated to acquisition of at least one measurement quantity with the earphone device arranged outside an ear of a subject. The earphone device is provided with at least one sensor, operatively coupled to the measurement portion within the casing for acquiring signals indicative of the measurement quantity, and a processing module that processes the signals acquired by the sensor so as to provide a processed output signal for monitoring the measurement quantity, as a function of the acquired signals. Electrical-connection elements define electrical paths within the casing in electrical connection with the sensor.