公开(公告)号：US20210033402A1

公开(公告)日：2021-02-04

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: 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.

公开(公告)号：US10445285B2

公开(公告)日：2019-10-15

申请号：US15639543

申请日：2017-06-30

Applicant: STMicroelectronics S.R.L.

Inventor： Marco Leo ,  Alessandra Maria Rizzo Piazza Roncoroni ,  Marco Castellano

IPC: G06F13/38 ,  G06F13/40 ,  G06F13/42 ,  G06F13/12 ,  G06F13/364

Abstract: An integrated data concentrator, so-called “sensor hub”, for a multi-sensor MEMS system, implements: a first interface module, for interfacing, in a normal operating mode, with a microprocessor through a first communication bus; and a second interface module, for interfacing, in the normal operating mode, with a plurality of sensors through a second communication bus; the sensor hub further implements a pass-through operating mode, distinct from the normal operating mode, in which it sets the microprocessor in direct communication with the sensors, through the first communication bus and the second communication bus. In particular, the sensor hub implements the direct pass-through operating mode in a totally digital manner.

公开(公告)号：US09710413B2

公开(公告)日：2017-07-18

申请号：US14313769

申请日：2014-06-24

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Leo ,  Alessandra Maria Rizzo Piazza Roncoroni ,  Marco Castellano

IPC: G06F13/24 ,  G06F13/00 ,  G06F13/14 ,  G06F13/40 ,  G06F13/38

CPC classification number: G06F13/4286 ,  G06F13/124 ,  G06F13/364 ,  G06F13/385 ,  G06F13/4022 ,  G06F13/4027 ,  G06F2213/0016 ,  Y02D10/14 ,  Y02D10/151

Abstract: An integrated data concentrator, so-called “sensor hub”, for a multi-sensor MEMS system, implements: a first interface module, for interfacing, in a normal operating mode, with a microprocessor through a first communication bus; and a second interface module, for interfacing, in the normal operating mode, with a plurality of sensors through a second communication bus; the sensor hub further implements a pass-through operating mode, distinct from the normal operating mode, in which it sets the microprocessor in direct communication with the sensors, through the first communication bus and the second communication bus. In particular, the sensor hub implements the direct pass-through operating mode in a totally digital manner.

公开(公告)号：US08960001B2

公开(公告)日：2015-02-24

申请号：US13904847

申请日：2013-05-29

Applicant: STMicroelectronics S.r.l.

Inventor： Alessandra Maria Rizzo Piazza Roncoroni ,  Carlo Caminada ,  Luciano Prandi

IPC: G01C19/56 ,  H03B5/30 ,  H03L3/00

CPC classification number: H03B5/30 ,  G01C19/56 ,  H03L3/00

Abstract: A microelectromechanical device includes a body, a movable mass, elastically connected to the body and movable in accordance with a degree of freedom, and a driving device, coupled to the movable mass and configured to maintain the movable mass in oscillation at a steady working frequency in a normal operating mode. The microelectromechanical device moreover includes a start-up device, which is activatable in a start-up operating mode and is configured to compare a current oscillation frequency of a first signal correlated to oscillation of the movable mass with a reference frequency, and for deciding, on the basis of the comparison between the current oscillation frequency and the reference frequency, whether to supply to the movable mass a forcing signal packet so as to transfer energy to the movable mass.

Abstract translation: 微机电装置包括主体，可移动质量体，弹性地连接到主体并且可以根据自由度移动;以及驱动装置，其联接到可移动质量块，并且被配置为将可移动质量块稳定在稳定的工作频率 在正常的操作模式。 微机电装置还包括启动装置，其可以在启动操作模式下激活，并且被配置为将与可移动质量块的振荡相关的第一信号的当前振荡频率与参考频率进行比较， 基于当前振荡频率和参考频率之间的比较，是否向可移动质量块施加强制信号分组，以将能量传递到可移动质量块。

公开(公告)号：US12050738B2

公开(公告)日：2024-07-30

申请号：US18099372

申请日：2023-01-20

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

CPC classification number: 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, 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.

公开(公告)号：US11949500B2

公开(公告)日：2024-04-02

申请号：US17898335

申请日：2022-08-29

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Matteo Quartiroli ,  Alessandra Maria Rizzo Piazza Roncoroni

IPC: H04W4/02 ,  H04J3/06

CPC classification number: H04J3/0685 ,  H04J3/0617

Abstract: An integrated circuit includes a control circuit, a primary sensor device coupled to the control circuit, and a plurality of groups of secondary sensor devices coupled to the primary sensor device. The primary sensor device receives a master clock signal from the control device and outputs, to each group of secondary sensor devices, a respective secondary clock signal with a frequency lower than the primary clock signal. The primary sensor device generates primary sensor data. The primary sensor device receives secondary sensor data from each group of secondary sensor devices. The primary sensor device combines the primary sensor data and all of the secondary sensor data into a sensor data stream with a time division-multiplexing scheme and outputs the sensor data stream to the control circuit.

公开(公告)号：US20230161424A1

公开(公告)日：2023-05-25

申请号：US18099372

申请日：2023-01-20

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

CPC classification number: 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, 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.

公开(公告)号：US09234755B2

公开(公告)日：2016-01-12

申请号：US13886774

申请日：2013-05-03

Applicant: STMicroelectronics S.r.l.

Inventor： Luciano Prandi ,  Carlo Caminada ,  Alessandra Maria Rizzo Piazza Roncoroni

IPC: G01C19/56 ,  G01C19/5726 ,  G01C19/5762

CPC classification number: G01C19/56 ,  G01C19/5726 ,  G01C19/5762

Abstract: A gyroscope includes a body, a driving mass, which is mobile according to a driving axis, and a sensing mass, which is driven by the driving mass and is mobile according to a sensing axis, in response to rotations of the body. A driving device forms a microelectromechanical control loop with the body and the driving mass and maintains the driving mass in oscillation with a driving frequency. The driving device comprises a frequency detector, which supplies a clock signal at the frequency of oscillation of the driving mass, and a synchronization stage, which applies a calibrated phase shift to the clock signal so as to compensate a phase shift caused by components of the loop that are set between the driving mass and the control node.

公开(公告)号：US20130249642A1

公开(公告)日：2013-09-26

申请号：US13904847

申请日：2013-05-29

Applicant: STMicroelectronics S.r.l.

Inventor： Alessandra Maria Rizzo Piazza Roncoroni ,  Carlo Caminada ,  Luciano Prandi

IPC: H03B5/30

CPC classification number: H03B5/30 ,  G01C19/56 ,  H03L3/00

Abstract: A microelectromechanical device includes a body, a movable mass, elastically connected to the body and movable in accordance with a degree of freedom, and a driving device, coupled to the movable mass and configured to maintain the movable mass in oscillation at a steady working frequency in a normal operating mode. The microelectromechanical device moreover includes a start-up device, which is activatable in a start-up operating mode and is configured to compare a current oscillation frequency of a first signal correlated to oscillation of the movable mass with a reference frequency, and for deciding, on the basis of the comparison between the current oscillation frequency and the reference frequency, whether to supply to the movable mass a forcing signal packet so as to transfer energy to the movable mass.

Abstract translation: 微机电装置包括主体，可移动质量体，弹性地连接到主体并且可以根据自由度移动;以及驱动装置，其联接到可移动质量块，并且被配置为将可移动质量块稳定在稳定的工作频率 在正常的操作模式。 微机电装置还包括启动装置，其可以在启动操作模式下激活，并且被配置为将与可移动质量块的振荡相关的第一信号的当前振荡频率与参考频率进行比较， 基于当前振荡频率和参考频率之间的比较，是否向可移动质量块施加强制信号分组，以将能量传递到可移动质量块。