公开(公告)号：EP4067830A1

公开(公告)日：2022-10-05

申请号：EP22165663.0

申请日：2022-03-30

Applicant: STMicroelectronics S.r.l.

Inventor： QUARTIROLI, Matteo ,  ROSINGANA, Paolo

IPC: G01D21/00

Abstract: The integrated sensor (5A-5C) is configured to receive a frequency-indication signal (EXT_REF) and to supply an output digital signal (S O ) formed by a plurality of samples. The integrated sensor has a digital detector (48), which detects a physical quantity and generates a discrete detection signal (S D ) indicative of the detected physical quantity; an output timing regulation block (80, 83), which receives the frequency-indication signal and a set of local reference signals (CLK, INT_REF) and generates a trigger signal (OUT_TRG) as a function of the frequency-indication signal and of the set of local reference signals; and an output stage (49), which receives the discrete detection signal and the trigger signal (OUT_TRG) and supplies the digital output signal (S O ) and a locking signal (EXT_REF, INT_REF). The output stage (49) supplies a sample of the discrete detection signal in response to the reception of the trigger signal, thus generating the digital output signal, and supplies the locking signal in response to the reception of the trigger signal. The locking signal is temporally aligned with the digital output signal.

公开(公告)号：EP4407277A1

公开(公告)日：2024-07-31

申请号：EP24152547.6

申请日：2024-01-18

Applicant: STMicroelectronics S.r.l.

Inventor： MAGNANI, Alessandro ,  QUARTIROLI, Matteo ,  RIZZO PIAZZA RONCORONI, Alessandra Maria ,  ROSINGANA, Paolo

IPC: G01C19/5776 ,  G01C21/12

CPC classification number: G01C19/5776 ,  G01C21/12

Abstract: A device includes one or more inertial sensors and fusion circuitry coupled to the one or more inertial sensors. The inertial sensors, in operation, generate inertial sensor data with respect to a plurality of axes of movement. The fusion circuitry, in a polar fusion mode of operation, applies a plurality of polar rotation operations to the generated inertial sensor data to rotate the generated inertial sensor data onto an axis of the plurality of axes of movement. A fused data signal is generated based on a result of the plurality of polar rotation operations. The plurality of inertial sensors may include bone-conduction sensors.

公开(公告)号：EP3771970A1

公开(公告)日：2021-02-03

申请号：EP20188663.7

申请日：2020-07-30

Applicant: STMicroelectronics S.r.l.

Inventor： ROSINGANA, Paolo ,  RIZZO PIAZZA RONCORONI, Alessandra Maria ,  RIZZARDINI, Federico ,  BRACCO, Lorenzo ,  RIVOLTA, Stefano Paolo ,  BIANCO, Marco

IPC: G06F3/0354 ,  G06F3/0346 ,  B81B7/02 ,  G05B13/02 ,  G06F1/32

Abstract: An inertial measurement system (1), having: at least one motion sensor (2) to output motion data with an output data rate - ODR -period (T ODR ); and a control unit (4) coupled to the motion sensor (2) to control operation thereof based on a power mode switching, according to which each ODR period (T ODR ) envisages: a first phase (T OFF ), in which the motion sensor (2) is controlled in a condition of low power consumption; and a subsequent measurement phase (T MEAS ), in which the motion sensor (2) is controlled to perform measurements for generation of measurement data. The control unit (4) adaptively adjusts the duration of the ODR period (T ODR ) based on at least one check related to the measurement data generated during the measurement phase.