公开(公告)号：US10379173B2

公开(公告)日：2019-08-13

申请号：US15076225

申请日：2016-03-21

Applicant: STMicroelectronics S.r.l.

Inventor： Rossella Bassoli ,  Carlo Crippa

IPC: G01R33/00 ,  G01R35/00 ,  G01C17/38

Abstract: A magnetic field sensor generates signal components corresponding to an uncalibrated representation of a sensed magnetic field in a three-dimensional coordinate system. A reader coupled to the magnetic field sensor determines a center offset based on received signal components, adjusts the received signal components based on the determined center offset, and applies Kalman filtering to the adjusted signal components, generating a set of ellipsoid parameters. The reader generates calibrated signal components based on the determined center offset and the generated set of ellipsoid parameters.

公开(公告)号：US10901516B2

公开(公告)日：2021-01-26

申请号：US16052379

申请日：2018-08-01

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Carlo Crippa ,  Rossella Bassoli

IPC: G06F3/01 ,  G06F9/448 ,  G06F1/16 ,  G05B19/042 ,  G01R33/00 ,  G01C19/02 ,  G01P15/00 ,  G05B23/02

Abstract: A programmable data processing circuit is configured for receiving sensor signals indicative of gestures for identification by the processing circuit. The processing circuit applies to the sensor signals finite state machine processing resources to provide identification output signals indicative of gestures identified as a function of the sensor signals. A plurality of finite state machine processing programs loaded into the processing circuit include a data section and an instruction section. The data section including a fixed size part specifying respective processing resources used by the programs in the plurality of finite state machine processing programs and a variable size part with respective sizes for allocating the respective processing resources used by the programs in the plurality of finite state machine processing programs. The instruction section including conditions and commands for execution by the respective processing resources used by the programs by operating on data located in the respective data sections.

公开(公告)号：US20170059667A1

公开(公告)日：2017-03-02

申请号：US15076225

申请日：2016-03-21

Applicant: STMicroelectronics S.r.l.

Inventor： Rossella Bassoli ,  Carlo Crippa

IPC: G01R33/00

CPC classification number: G01R33/0035 ,  G01C17/38 ,  G01R35/00

Abstract: A magnetic field sensor generates signal components corresponding to an uncalibrated representation of a sensed magnetic field in a three-dimensional coordinate system. A reader coupled to the magnetic field sensor determines a center offset based on received signal components, adjusts the received signal components based on the determined center offset, and applies Kalman filtering to the adjusted signal components, generating a set of ellipsoid parameters. The reader generates calibrated signal components based on the determined center offset and the generated set of ellipsoid parameters.

Abstract translation: 磁场传感器产生对应于三维坐标系中感测磁场的未校准表示的信号分量。 耦合到磁场传感器的读取器基于接收到的信号分量确定中心偏移，基于确定的中心偏移来调整接收到的信号分量，并将卡尔曼滤波应用于经调整的信号分量，生成一组椭圆参数。 阅读器根据确定的中心偏移量和生成的椭球参数集合生成校准信号分量。

公开(公告)号：US11275448B2

公开(公告)日：2022-03-15

申请号：US17116921

申请日：2020-12-09

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Carlo Crippa ,  Rossella Bassoli

IPC: G06F3/01 ,  G06F9/448 ,  G06F1/16 ,  G05B19/042 ,  G01R33/00 ,  G01C19/02 ,  G01P15/00 ,  G05B23/02

Abstract: A programmable data processing circuit is configured for receiving sensor signals indicative of gestures for identification by the processing circuit. The processing circuit applies to the sensor signals finite state machine processing resources to provide identification output signals indicative of gestures identified as a function of the sensor signals. A plurality of finite state machine processing programs loaded into the processing circuit include a data section and an instruction section. The data section including a fixed size part specifying respective processing resources used by the programs in the plurality of finite state machine processing programs and a variable size part with respective sizes for allocating the respective processing resources used by the programs in the plurality of finite state machine processing programs. The instruction section including conditions and commands for execution by the respective processing resources used by the programs by operating on data located in the respective data sections.