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公开(公告)号：US11592911B2
公开(公告)日：2023-02-28
申请号：US17191320
申请日：2021-03-03
Applicant: STMicroelectronics S.r.l.
Inventor： Federico Rizzardini , Lorenzo Bracco , Stefano Paolo Rivolta , Marco Bianco , Paolo Rosingana , Alessandra Maria Rizzo Piazza Roncoroni
IPC: G06F3/0346 , G06F3/038 , G01P15/18
Abstract: A pointing electronic device is provided with: an inertial measurement module, to generate motion input data, indicative of motion of the pointing electronic device, at an input data rate; a pointing determination unit, to implement a pointing algorithm at a processing data rate based on the motion input data, to generate screen-frame displacement data corresponding to 3D-space movements of the pointing electronic device, the processing data rate being higher than the input data rate. The pointing electronic device is further provided with a rate upscaling unit, interposed between the inertial measurement module and the pointing determination unit, to implement a data-rate upscaling of the motion input data, in order to generate upscaled motion input data to be processed by the pointing determination unit at a data rate matching the processing data rate, via a predictive data reconstruction of missing samples based on the actual motion input data.
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公开(公告)号：US11543248B2
公开(公告)日：2023-01-03
申请号：US16932526
申请日：2020-07-17
Applicant: STMicroelectronics S.r.l.
Inventor： Paolo Rosingana , Alessandra Maria Rizzo Piazza Roncoroni , Federico Rizzardini , Lorenzo Bracco , Stefano Paolo Rivolta , Marco Bianco
IPC: G06F3/038 , G01C21/18 , G06F1/3206 , G06F3/0346
Abstract: An embodiment inertial measurement system includes: at least one motion sensor to output motion data with an output data rate (ODR) period; and a control unit coupled to the motion sensor to control operation thereof based on a power mode switching, according to which each ODR period includes: a first phase, in which the motion sensor is controlled in a condition of low power consumption; and a subsequent measurement phase, in which the motion sensor is controlled to perform measurements for generation of measurement data. The control unit adaptively adjusts the duration of the ODR period based on at least one check related to the measurement data generated during the measurement phase.
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公开(公告)号：US11422634B2
公开(公告)日：2022-08-23
申请号：US17067519
申请日：2020-10-09
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：US11280634B2
公开(公告)日：2022-03-22
申请号：US16433874
申请日：2019-06-06
Applicant: STMicroelectronics S.r.l.
Inventor： Stefano Paolo Rivolta , Andrea Labombarda , Alberto Zancanato
IPC: G01C22/00
Abstract: An activity tracking device, such as a step-counting device includes an interface configured to receive one or more acceleration signals and signal processing circuitry. The signal processing circuitry generates an indication of condition of an accelerometer, such as a body position of the accelerometer, based on one or more accelerometer signals, generates an event signal, such as an event flag, based on one or more accelerometer signals and the indication of the condition of the accelerometer, and generates an activity signal, such as step flag based on the event signal, the indication of the condition of the accelerometer and one or more acceleration signals. The signal processing circuitry may generate a noise signal based on one or more acceleration signals and generate the activity signal based on the noise signal.
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公开(公告)号：US20210286447A1
公开(公告)日：2021-09-16
申请号：US17191320
申请日：2021-03-03
Applicant: STMicroelectronics S.r.l.
Inventor： Federico Rizzardini , Lorenzo Bracco , Stefano Paolo Rivolta , Marco Bianco , Paolo Rosingana , Alessandra Maria Rizzo Piazza Roncoroni
IPC: G06F3/0346 , G06F3/038
Abstract: A pointing electronic device is provided with: an inertial measurement module, to generate motion input data, indicative of motion of the pointing electronic device, at an input data rate; a pointing determination unit, to implement a pointing algorithm at a processing data rate based on the motion input data, to generate screen-frame displacement data corresponding to 3D-space movements of the pointing electronic device, the processing data rate being higher than the input data rate. The pointing electronic device is further provided with a rate upscaling unit, interposed between the inertial measurement module and the pointing determination unit, to implement a data-rate upscaling of the motion input data, in order to generate upscaled motion input data to be processed by the pointing determination unit at a data rate matching the processing data rate, via a predictive data reconstruction of missing samples based on the actual motion input data.
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Patent Agency Ranking
26.发明授权公开(公告)号：US10942578B2
公开(公告)日：2021-03-09
申请号：US16566759
申请日：2019-09-10
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Stefano Paolo Rivolta , Federico Rizzardini
Abstract: A system recognizes a gesture of bringing a mobile electronic device to a user ear. The system may be integrated in the mobile electronic device and is provided with a movement sensor which provides a movement signal indicative of the movement of the mobile electronic device. A pressure sensor provides a pressure signal indicative of a pressure acting on the mobile electronic device during the movement. A processing stage performs a joint processing of the movement signal and of the pressure signal in order to recognize the gesture.
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公开(公告)号：US20200286366A1
公开(公告)日：2020-09-10
申请号：US16296016
申请日：2019-03-07
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：US12204694B2
公开(公告)日：2025-01-21
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：US12164357B2
公开(公告)日：2024-12-10
申请号：US18356963
申请日：2023-07-21
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Stefano Paolo Rivolta , Roberto Mura , Marco Bianco
IPC: G06F1/32 , G01P15/14 , G01R29/12 , G06F1/3231
Abstract: The present disclosure is directed to a device configured to detect whether the device is in a bag or being taken out of the bag. The device determines whether the device is in a bag or being taken out of the bag based on motion measurements generated by a motion sensor and electrostatic charge measurements generated by an electrostatic charge sensor. By using both distance measurements and motion measurements, the device is able to detect whether the device is in the bag or being taken out of the bag with high efficiency, accuracy, and robustness.
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公开(公告)号：US11942107B2
公开(公告)日：2024-03-26
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
IPC: G10L25/78 , G06N5/01 , G06N20/10 , G10L25/09 , G10L25/30 , G10L25/51 , H04R25/00 , G10L15/16 , G10L19/26
CPC classification number: G10L25/78 , G06N5/01 , G06N20/10 , G10L25/09 , G10L25/30 , G10L25/51 , H04R25/40 , H04R25/505 , H04R25/604 , G10L15/16 , G10L19/26
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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