公开(公告)号：US20200298782A1

公开(公告)日：2020-09-24

申请号：US16362116

申请日：2019-03-22

Applicant: STMICROELECTRONICS S.r.l

Inventor： Alberto ZANCANATO ,  Michele FERRAINA ,  Matteo DAMENO ,  Mario TESI

IPC: B60R21/015 ,  B60N2/00 ,  B60N2/26 ,  B60R25/32 ,  B60R25/34

Abstract: A child safety seat may include a motion sensor, e.g., an accelerometer, and a pressure sensor, e.g., a air pressure sensor. The motion sensor is configured to detect a motion state of a vehicle where the child safety seat is installed, e.g., whether the vehicle is moving or non-moving. The pressure sensor is configured to detect a motion state of a door of the vehicle, e.g., a door open/close motion. Based on the information detected by the motion sensor and the pressure sensor, a controller determines whether an awareness scenario occurs.

公开(公告)号：US20210207940A1

公开(公告)日：2021-07-08

申请号：US17207180

申请日：2021-03-19

Applicant: STMicroelectronics S.r.l.

Inventor： Alberto ZANCANATO ,  Michele FERRAINA ,  Federico RIZZARDINI ,  Stefano Paolo RIVOLTA

IPC: G01B7/30 ,  G06F1/16 ,  G01P15/14 ,  G01P15/18

Abstract: A computing system includes a first hardware element having a first accelerometer and a first gyroscope, and a second hardware element having a second accelerometer and a second gyroscope. The first and second hardware elements are moveable with respect to each other. The computing system recursively generates a result signal indicative of a relative orientation of the first and second hardware elements with respect to each other. The result signal may be generated by generating a first intermediate signal indicative of a angle between the first and second hardware elements based on signals generated by the first and second accelerometers and generating a second intermediate signal indicative of the angle based on signals generated by the first and second gyroscopes. The result signal indicative of the angle may be generated as a weighted sum of the first intermediate signal and the second intermediate signal. At least one of the first and second hardware elements is controlled by on the result signal.

公开(公告)号：US20180340768A1

公开(公告)日：2018-11-29

申请号：US15987637

申请日：2018-05-23

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Alberto ZANCANATO ,  Michele FERRAINA ,  Federico RIZZARDINI ,  Stefano Paolo RIVOLTA

IPC: G01B7/30 ,  G01P15/18 ,  G01P15/14

Abstract: A computing system includes a first hardware element having a first accelerometer and a first gyroscope, and a second hardware element having a second accelerometer and a second gyroscope. The first and second hardware elements are moveable with respect to each other. The computing system recursively generates a result signal indicative of a relative orientation of the first and second hardware elements with respect to each other. The result signal may be generated by generating a first intermediate signal indicative of a angle between the first and second hardware elements based on signals generated by the first and second accelerometers and generating a second intermediate signal indicative of the angle based on signals generated by the first and second gyroscopes. The result signal indicative of the angle may be generated as a weighted sum of the first intermediate signal and the second intermediate signal. At least one of the first and second hardware elements is controlled by on the result signal.

公开(公告)号：US20200167559A1

公开(公告)日：2020-05-28

申请号：US16203275

申请日：2018-11-28

Applicant: STMicroelectronics S.r.l.

Inventor： Alberto ZANCANATO ,  Stefano Paolo RIVOLTA

IPC: G06K9/00 ,  G06N20/00

Abstract: Technological advancements are disclosed that utilize inertial sensor data associated with a device to determine a new feature array and if the new feature array is within an existing class within a state space associated with the inertial sensor data. In response to the new feature array being included in the existing class, the new feature array is added to the existing class and a representation of the existing class in the state space is updated based on the new feature array and an existing representation of the existing class. In response to the new feature array not being included in the existing class, a new class is created based on the new feature array.

公开(公告)号：US20190018499A1

公开(公告)日：2019-01-17

申请号：US16125515

申请日：2018-09-07

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Antonio MICALI ,  Alberto ZANCANATO ,  Federico RIZZARDINI

IPC: G06F3/01 ,  G01C21/16 ,  G01C21/10 ,  G01C17/38 ,  G01P15/00 ,  G01C19/00 ,  G01B7/30 ,  G01V3/08

CPC classification number: G06F3/017 ,  G01B7/30 ,  G01C17/38 ,  G01C19/00 ,  G01C21/10 ,  G01C21/165 ,  G01P15/00 ,  G01V3/081

Abstract: An electronic device determines an estimate of angular position based on an accelerometric signal supplied by an accelerometric sensor and as a function of at least one of a gyroscopic signal from a gyroscopic sensor and a magnetic signal from a magnetic-field sensor. A processing module implements a complementary filter, which is provided with a first processing block, a second processing block, and a combination block. The first processing block receives the acceleration signal and an input signal indicative of the magnetic signal and generates a geomagnetic quaternion. The second processing block receives a signal indicative of the gyroscopic signal (gyro) and generates a gyroscopic quaternion. The combination block determines the estimate ({circumflex over (q)}) of angular position by complementarily combining the geomagnetic quaternion and the gyroscopic quaternion based on a combination factor that has a dynamic value and an adaptive value and that varies as a function of the operating conditions.