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公开(公告)号：US20240142294A1
公开(公告)日：2024-05-02
申请号：US18458765
申请日：2023-08-30
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Stefano Paolo RIVOLTA , Andrea LABOMBARDA , Carlo GUADALUPI , Mauro BARDONE
CPC classification number: G01F23/804 , G01F23/0007
Abstract: The present disclosure is directed to a method for detecting a liquid on a main surface of a body. The method is performed through a detection device including a processing module, a reference electrode at a reference electric voltage and a first sensing electrode on the main surface and configurated to detect an environmental electric and/or electrostatic charge variation indicative of the presence of the liquid. The method includes the steps of: biasing the first sensing electrode to a bias electric voltage; while the first sensing electrode is at the bias electric voltage, acquiring a first charge variation signal indicative of the electric and/or electrostatic charge variation detected by the first sensing electrode; verifying whether the first charge variation signal is indicative of the presence of the liquid on the main surface, at the first sensing electrode; and, if it is, determining the presence of the liquid on the main surface at the first sensing electrode.
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公开(公告)号：US20240044647A1
公开(公告)日：2024-02-08
申请号：US18484978
申请日：2023-10-11
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Stefano Paolo RIVOLTA , Federico RIZZARDINI , Lorenzo BRACCO , Roberto MURA
IPC: G01C19/60 , G01B7/00 , H03K17/945
CPC classification number: G01C19/60 , G01B7/003 , H03K17/945
Abstract: The present disclosure is directed to a device configured to detect whether the device is in a bag or outside of the bag. The device determines whether the device is in or outside of the bag based on distance measurements generated by at least one proximity sensor and motion measurements generated by at least one motion sensor. By using both distance measurements and motion measurements, the device is able to detect whether the device is in the bag or outside of the bag with high accuracy and robustness.
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Patent Agency Ranking
公开(公告)号：US20230125175A1
公开(公告)日：2023-04-27
申请号：US18047187
申请日：2022-10-17
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Stefano Paolo RIVOLTA , Roberto MURA , Lorenzo BRACCO , Federico RIZZARDINI
IPC: G06F1/16
Abstract: The present disclosure is directed to a detection method of a first or second state of a foldable electronic device including a first and a second hardware element tiltable to each other and accommodating a first and a second electrode which are in contact with each other when the foldable electronic device is in the first state and at a distance from each other otherwise. The detection method includes: acquiring a first and a second charge variation signal indicative of environmental electric/electrostatic charge variations detected by the first and second electrodes; generating a differential signal indicative of a difference between the first and the second charge variation signals; generating, as a function of the differential signal, one or more feature signals; and generating, as a function of the one or more feature signals, a contact signal indicative of the first or second states of the foldable electronic device.
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公开(公告)号：US20220342486A1
公开(公告)日：2022-10-27
申请号：US17862937
申请日：2022-07-12
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Federico RIZZARDINI , Lorenzo BRACCO , Stefano Paolo RIVOLTA
Abstract: An electronic device has an input which, in operation, receives an input stream of accelerometer data samples indicative of acceleration values along at least one axis. The devices includes circuitry, coupled to the input. The circuitry, in operation, executes an automatic-learning algorithm on blocks of samples of the input stream of accelerometer data samples to identify, for each block, a corresponding condition-of-user-movement from among a plurality of determined conditions-of-user-movement. The circuitry generates a plurality of streams of samples based on the input stream of accelerometer data samples, and for each condition of movement identified, selects a corresponding stream of samples of the plurality of streams of samples. The circuitry executes a wrist-tilt gesture detection algorithm using samples of the selected stream of the plurality of streams of samples.
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公开(公告)号：US20220270593A1
公开(公告)日：2022-08-25
申请号：US17183288
申请日：2021-02-23
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Stefano Paolo RIVOLTA , Federico RIZZARDINI , Lorenzo BRACCO , Roberto MURA
Abstract: The present disclosure is directed to a device and method for detecting presence or absence of human speech. The device and method utilize a low-power accelerometer. The device and method generate an acceleration signal using the accelerometer, filter the acceleration signal with a band pass filter or a high pass filter, determine at least one calculation of the filtered acceleration signal, detect a presence or absence of a voice based on the at least one calculation, and output a detection signal that indicates the presence or absence of the voice. The device and method are well suited for portable audio devices, such as true wireless stereo headphones, that have a limited power supply.
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公开(公告)号：US20210287526A1
公开(公告)日：2021-09-16
申请号：US17332669
申请日：2021-05-27
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Stefano Paolo RIVOLTA , Federico RIZZARDINI , Daniele ARCERI , Alessandra Maria RIZZO PIAZZA RONCORONI , Marco BIANCO
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.
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公开(公告)号：US20210255686A1
公开(公告)日：2021-08-19
申请号：US17168110
申请日：2021-02-04
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Stefano Paolo RIVOLTA , Marco BIANCO , Roberto MURA , Federico RIZZARDINI , Lorenzo BRACCO
IPC: G06F1/3206 , G06F1/3296 , G06F1/16 , G06N20/00
Abstract: An electronic device has sensing circuitry and control circuitry. The control circuitry generates, based on generated sensor data, information indicative of movement of the electronic device. The control circuitry generates control signals to control operation of the electronic device in a plurality of power states, including a working-power state, an intermediate-power state and a low-power state, based on the information indicative of movement.
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