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公开(公告)号:US20220173918A1
公开(公告)日:2022-06-02
申请号:US17107532
申请日:2020-11-30
Inventor: Enrico Rosario Alessi , Mario Antonio Aleo , Karel Blaha , Pavel Vicek
Abstract: A method for mutual authentication that includes establishing a first inductive coupling between a wireless-power receiver and a wireless-power transmitter to transfer power from the wireless-power transmitter to the wireless-power receiver by a power signal and using the power signal to transmit a first response to a physically unclonable function to the wireless-power transmitter. The method further including generating a second response to the physically unclonable function and communicating information derived from the second response to initiate a mutual authentication process between the wireless-power receiver and the wireless-power transmitter during a subsequent inductive coupling.
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公开(公告)号:US10942157B2
公开(公告)日:2021-03-09
申请号:US15901721
申请日:2018-02-21
Applicant: STMICROELECTRONICS PTE LTD , STMICROELECTRONICS S.R.L.
Inventor: Malek Brahem , Hatem Majeri , Olivier Le Neel , Ravi Shankar , Enrico Rosario Alessi , Pasquale Biancolillo
Abstract: The present disclosure is directed to a gas sensor device that detects gases with large molecules (e.g., a gas with a molecular weight between 150 g/mol and 450 g/mol), such as siloxanes. The gas sensor device includes a thin film gas sensor and a bulk film gas sensor. The thin film gas sensor and the bulk film gas sensor each include a semiconductor metal oxide (SMO) film, a heater, and a temperature sensor. The SMO film of the thin film gas sensor is an thin film (e.g., between 90 nanometers and 110 nanometers thick), and the SMO film of the bulk film gas sensor is an thick film (e.g., between 5 micrometers and 20 micrometers thick). The gas sensor device detects gases with large molecules based on a variation between resistances of the SMO thin film and the SMO thick film.
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公开(公告)号:US20200318812A1
公开(公告)日:2020-10-08
申请号:US16819744
申请日:2020-03-16
Applicant: STMicroelectronics S.r.l.
Inventor: Giuseppe Spinella , Enrico Rosario Alessi
IPC: F21V15/00 , F21V5/00 , F21V14/00 , H01L31/167 , H01L31/02 , H01L31/0232 , G01N33/00 , G01N21/25
Abstract: In one embodiment, a light assembly includes a base substrate; a light-emitting device supported by the base substrate; a cover permeable to volatile compounds, completely surrounding the light-emitting device and being transparent to a light flux emitted, during use, by the light-emitting device; a gas sensor configured to sense the volatile compounds, the gas sensor being arranged within the cover. The light assembly includes a pump having an inlet operatively coupled to the cover, and operable to generate a pressure depression within the cover. The light assembly includes a light sensor operatively coupled to the light-emitting device, the light sensor being configured to sense a light intensity value of at least one light component of the light flux. The light assembly includes a processor operatively coupled to the gas sensor, the light sensor, and the pump; a non-volatile memory storing a program to be executed in the processor.
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公开(公告)号:US10508984B2
公开(公告)日:2019-12-17
申请号:US15454584
申请日:2017-03-09
Applicant: STMicroelectronics S.r.l.
Inventor: Enrico Rosario Alessi , Giuseppe Spinella
Abstract: An in-liquid state of a mobile device is detected by processing color components indicative of an intensity of the ambient light at different wavelengths and a pressure data indicative of ambient pressure. A first plausibility index indicates a likelihood of an air/liquid transition as a function of variations of at least two color components. A second plausibility index indicates a likelihood of an air/liquid transition as a function of variations of said ambient pressure. If both the first and the second plausibility indices indicate a likely air/liquid transition event, an in-liquid state signal is generated.
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公开(公告)号:US11861998B2
公开(公告)日:2024-01-02
申请号:US17742177
申请日:2022-05-11
Applicant: STMicroelectronics S.r.l.
Inventor: Enrico Rosario Alessi , Fabio Passaniti
CPC classification number: G08B13/1645 , G08B13/24
Abstract: A system for detecting a presence in an environment to be monitored includes an electrostatic charge variation sensor, a vibration sensor, and an environmental pressure sensor. A processing unit is configured to acquire, from the electrostatic charge variation sensor, an electrostatic charge variation signal, and detect in the electrostatic charge variation signal, first signal characteristics indicative of the presence of a subject in the environment to be monitored. The processing unit further validates the detection of presence of the subject using the vibration and pressure signals provided by the other sensors.
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公开(公告)号:US11847897B2
公开(公告)日:2023-12-19
申请号:US17217647
申请日:2021-03-30
Applicant: STMicroelectronics S.r.l.
Inventor: Fabio Passaniti , Enrico Rosario Alessi
CPC classification number: G08B13/2494 , G01R29/12 , G01R29/14 , G01R29/24 , G01R31/001 , G01N15/0266 , G01N15/0656 , G01N27/60
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.
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公开(公告)号:US11788980B2
公开(公告)日:2023-10-17
申请号:US17840212
申请日:2022-06-14
Applicant: STMicroelectronics S.r.l.
Inventor: Fabio Passaniti , Enrico Rosario Alessi
CPC classification number: G01N27/123 , G01N33/007 , H05B1/0283
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.
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公开(公告)号:US11698355B2
公开(公告)日:2023-07-11
申请号:US16917285
申请日:2020-06-30
Applicant: STMICROELECTRONICS S.r.l.
Inventor: Fabio Passaniti , Enrico Rosario Alessi
CPC classification number: G01N27/045 , G01N33/0031 , G01N33/0063
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.
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公开(公告)号:US11669168B2
公开(公告)日:2023-06-06
申请号:US17157584
申请日:2021-01-25
Applicant: STMicroelectronics S.r.l.
Inventor: Fabio Passaniti , Enrico Rosario Alessi
CPC classification number: G06F3/017 , G06F3/0346 , G06F3/0412 , G06F3/0416 , G01R29/12 , G01R29/24
Abstract: A system for detection of a touch gesture of a user on a detection surface includes a processing unit, an electrostatic-charge-variation sensor, which generates a charge-variation signal; and an accelerometer, which generates an acceleration signal. The processing unit is configured to: detect, in the charge-variation signal, a first feature identifying the touch; detect, in the acceleration signal, a second feature identifying the touch; detect a temporal correspondence between the first and second features identifying the touch gesture; and validate the touch gesture only in the case where both the first and second features have been detected and the temporal correspondence satisfies a pre-set relation.
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公开(公告)号:US20230019962A1
公开(公告)日:2023-01-19
申请号:US17374815
申请日:2021-07-13
Inventor: Mirko Guarnera , Wenbin Yang , Enrico Rosario Alessi , Fabio Passaniti
Abstract: A system and method for determining handedness in a device. The system including a first electrode, a second electrode, a sensor, and a processing circuit coupled to each other. The first electrode is placed at a first location, and the second electrode is placed at a second location on the device—the first location is different from the second location. The electrodes are configured to sense a variation in an electrostatic field in response to a user interacting with the device. The sensor detects a differential potential between the first electrode and the second electrode, and the processing circuit determines whether the user is interacting with the device using a left hand or a right hand. The determining is based on data received from the sensor corresponding to the differential potential.
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