公开(公告)号：EP4092642A1

公开(公告)日：2022-11-23

申请号：EP22173720.8

申请日：2022-05-17

Applicant: STMicroelectronics S.r.l.

Inventor： ALESSI, Enrico Rosario ,  PASSANITI, Fabio

IPC: G08B13/19 ,  G08B21/04 ,  G08B13/194

Abstract: A method includes: receiving IR radiation with a plurality of IR sensors; producing a plurality of output signals with the plurality of IR sensors based on the received IR radiation, where each of the plurality of output signals is indicative of an intensity of the IR radiation received by a respective IR sensor of the plurality of IR sensors; detecting an IR source based on the plurality of output signals; generating a candidate alarm in response to detecting the IR source; determining whether the detected IR source matches any reference IR source of a set of reference IR sources; when the detected IR source matches one reference IR source of the set of reference IR sources, issuing a user alarm, and when the detected IR source does not match any reference IR source of the set of reference IR sources, canceling the candidate alarm without issuing the user alarm.

公开(公告)号：EP3879225A1

公开(公告)日：2021-09-15

申请号：EP21162207.1

申请日：2021-03-12

Applicant: STMicroelectronics S.r.l.

Inventor： ALESSI, Enrico Rosario ,  PASSANITI, Fabio

IPC: G01C5/06 ,  G01C22/00

Abstract: A user context and/or activity detection device (1) envisages a pressure sensor (2), configured to provide a pressure signal (Sp) ; an electrostatic-charge-variation sensor (4), configured to provide a charge-variation signal (S Q ) indicative of a variation of electrostatic charge associated with the user; and a processing unit (6), which is coupled to the pressure sensor (2) and to the electrostatic-charge-variation sensor (4) so as to receive the pressure signal (S P ) and the charge-variation signal (S Q ) and is configured to jointly process the pressure signal (Sp) and charge-variation signal (S Q ) for detecting changes in level or altitude.

公开(公告)号：EP3761025A1

公开(公告)日：2021-01-06

申请号：EP20180576.9

申请日：2020-06-17

Applicant: STMicroelectronics S.r.l.

Inventor： PASSANITI, Fabio ,  ALESSI, Enrico Rosario

IPC: G01N33/00

Abstract: A method of operating a gas sensing device is described. The device comprises a gas sensor circuit comprising a resistive gas sensing element, and a control circuit. The method comprises receiving (202) a signal indicative of a value of resistance of the gas sensing element, processing (204) the signal received to compute a value of a gas concentration, performing a comparison (206) of said value of gas concentration to a threshold, and, conditioned on the outcome of a diagnosis procedure (30), setting the device to an alert signal issue state (208) as a function of the outcome of said comparison. The diagnosis procedure comprises 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. As a result of the gas sensor circuit being in the first class, setting the device to said alert signal issue state (208) is disabled. As a result of the gas sensor circuit being in the second class, a sensitivity correction procedure of the gas sensor circuit is triggered and the diagnosis procedure (30) is repeated. As a result of the gas sensor circuit being in said third class, setting the device to said alert signal issue state (208) is enabled.

公开(公告)号：EP4382874A1

公开(公告)日：2024-06-12

申请号：EP23213869.3

申请日：2023-12-04

Applicant: STMicroelectronics S.r.l.

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

IPC: G01J5/00 ,  G01J5/0806 ,  G01J5/0831

CPC classification number: G01J5/0025 ,  G01J5/0831 ,  G01J5/0806

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：EP3889927A1

公开(公告)日：2021-10-06

申请号：EP21165024.7

申请日：2021-03-25

Applicant: STMicroelectronics S.r.l.

Inventor： PASSANITI, Fabio ,  ALESSI, Enrico Rosario

IPC: G08B13/24

Abstract: Method for presence detection in an environment to be monitored, comprising the steps of: generating an electric charge signal in a condition of absence of presence in the environment to be monitored; generating an electric charge signal in an operating condition wherein a person may be present in the environment; processing the two generated signals; and comparing the result of the processing. Processing the signals includes representing in a biaxial reference system the value of the charge signal considered and its derivative with respect to time, 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：EP3719837A1

公开(公告)日：2020-10-07

申请号：EP20168070.9

申请日：2020-04-03

Applicant: STMicroelectronics S.r.l.

Inventor： SPINELLA, Giuseppe ,  ALESSI, Enrico Rosario

IPC: H01L25/16 ,  H01L33/52

Abstract: A light-emitting unit (1) comprising: a package (4), coupled to a PCB (2), and including a base substrate (4a) and a silicone dome (4b) which completely surrounds a LED (18), a gas sensor (20) to sense volatile compounds (VOCs) permeating the dome, and a light sensor (22) to sense a light intensity value of a light flux emitted by the LED. The PCB integrates a pump (8) to generate a local depression within the silicone dome, and a processor (30), coupled to the gas sensor (20), the light sensor (22), and the pump (8), and configured to acquire, from the gas sensor (20), a first signal indicative of a quantity of the VOCs permeating the silicone dome; acquire, from the light sensor (22), a second signal correlated to said light intensity value; and activate the pump (8) when the VOCs are above a threshold and the light-flux intensity below a respective threshold.

公开(公告)号：EP4428441A9

公开(公告)日：2024-11-13

申请号：EP24159069.4

申请日：2024-02-22

Applicant: STMicroelectronics S.r.l.

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

IPC: F23N5/02 ,  F23N5/12

Abstract: Sensor device (10) for detecting a flame (12), comprising: a carbon dioxide sensor (20) for detecting a CO 2 concentration; a fuel sensor (30) for detecting the combustion of a fuel; an electrostatic charge variation sensor (40) for detecting electrostatic charge variations generated by the flame (12); and a control unit (50). The control unit (50) is configured to: acquire a carbon dioxide signal (S A ) indicative of the concentration of carbon dioxide, a fuel signal (Sc) indicative of the fuel combustion, and an electrostatic charge variation signal (S Q ) indicative of a difference between the electrostatic charge variations detected by a first (40a) and a second (40b) electrode of the electrostatic charge variation sensor (40); determine a quantized signal (S Q ') based on the electrostatic charge variation signal (S Q ); determine an aggregate datum (I A ) based on the carbon dioxide signal (S A ), the fuel signal (Sc) and the electrostatic charge variation signal (S Q ); and generate, based on the aggregate datum (I A ), a flame signal (S F ) indicative of the presence or absence of the flame.

公开(公告)号：EP4213471A1

公开(公告)日：2023-07-19

申请号：EP23151090.0

申请日：2023-01-11

Applicant: STMicroelectronics S.r.l.

Inventor： PASSANITI, Fabio ,  ALESSI, Enrico Rosario

IPC: H04M1/02

Abstract: The device and method for screen state detection may be used in conjunction with any device with a bendable display. The device (10) comprises a bendable display (12); a first stimulus electrode (18) configured to transmit a first key signal; a first receiving electrode (20) configured to receive an electrostatic charge variation in a surrounding environment; an electrostatic charge variation sensor (16) configured to measure the electrostatic charge variation, and generate electrostatic charge variation data based on the measured electrostatic charge variation; and a processor (14) configured to determine whether the bendable display is in an open state or a closed state based on the electrostatic charge variation data and the first key signal.

公开(公告)号：EP4184137A2

公开(公告)日：2023-05-24

申请号：EP22201846.7

申请日：2022-10-17

Applicant: STMicroelectronics S.r.l.

Inventor： BRUNO, Giuseppe ,  LA MALFA, Antonella ,  ALESSI, Enrico Rosario ,  PASSANITI, Fabio

IPC: G01J5/00 ,  G01J5/02 ,  G01J5/04 ,  G01J5/70 ,  G01J5/80 ,  G01J5/0806 ,  G01J5/48

Abstract: A device (130) includes a sensor (200). The sensor includes a thermal infrared sensor or a sensor based on CMOS-SOI-MEMS technology, TMOS. The sensor is capable of performing at least two functions at the same time. The first is remote temperature measurement and the second is presence detection. The sensor passively collects infrared information and a microprocessor (210) coupled to the sensor (200) determines the temperature as well as presence.

公开(公告)号：EP4173567A1

公开(公告)日：2023-05-03

申请号：EP22204227.7

申请日：2022-10-27

Applicant: STMicroelectronics S.r.l.

Inventor： ALESSI, Enrico Rosario ,  PASSANITI, Fabio

IPC: A61B5/11 ,  A61B3/113 ,  A61B5/398 ,  A61B5/00

Abstract: Detection method (50) of an activity of a first eye (30) of a user of a pair of glasses (10) comprising a first (22a) and a second (22b) electrode facing the first eye (30) and configured to detect respective electrostatic charge variations generated by a movement of the first eye (30). The detection method, performed by a control unit (21, 15) of the glasses (10), comprises the steps of: acquiring (S10-S14), through the first (22a) and second (22b) electrodes, a first electrostatic charge variation signal (S Q,1a ) indicative of a difference between the electrostatic charge variations; verifying (S16, S18) the presence of one or more blink patterns in the first electrostatic charge variation signal (S Q,1a ), each blink pattern being indicative of a respective voluntary blink or involuntary blink; if the first electrostatic charge variation signal (S Q,1a ) has said one or more blink patterns, for each blink pattern determining (S20, S22; S20', S22) by the control unit (21, 15) whether said blink pattern is indicative of a respective voluntary blink and detecting a involuntary blink or a voluntary blink.