公开(公告)号：US11047682B2

公开(公告)日：2021-06-29

申请号：US15523908

申请日：2014-11-11

Applicant: Intel Corporation

Inventor： Ke Han ,  He Han ,  Zhifeng Wang ,  Feng Xu

IPC: G01C17/38 ,  G01R33/00 ,  G01C25/00 ,  G01R33/028 ,  G01C19/56 ,  G01R33/022

Abstract: Systems and methods may provide for obtaining first sensor data associated with a gyroscope and obtaining second sensor data associated with a magnetometer. Additionally, the first sensor data, the second sensor data and an extended Kalman filter may be used to calibrate the magnetometer. In one example, a sampling rate of the magnetometer is increased before obtaining the second sensor data and the sampling rate of the magnetometer is decreased after calibration of the magnetometer.

公开(公告)号：US10912494B2

公开(公告)日：2021-02-09

申请号：US15780226

申请日：2016-08-10

Applicant: Intel Corporation

Inventor： Ke Han ,  Dong Wang ,  He Han ,  Dror Lederman ,  Lev Lavy ,  Yehiel Shilo

IPC: A61B5/11 ,  A61B5/024 ,  A61B5/00 ,  A61B5/0205 ,  G06F19/00 ,  G16H50/20 ,  G16H20/30

Abstract: A sensor interface circuit enables signal reconstruction on data received from a sensor prior to sending the data to various sensor clients. Multiple sensor clients have different frequencies configured to receive sensor data. The sensor interface circuit performs signal reconstructions including data interpolation to generate interpolated data signal having frequencies corresponding to the different frequencies configured for the different sensor clients. Signal reconstruction can also include filtering the data. The sensor interface circuit sends the reconstructed data to the multiple clients in accordance with their different frequencies.

公开(公告)号：US20170343349A1

公开(公告)日：2017-11-30

申请号：US15523908

申请日：2014-11-11

Applicant: Intel Corporation

Inventor： Ke Han ,  He Han ,  Zhifeng Wang ,  Feng Xu

IPC: G01C17/38 ,  G01R33/00 ,  G01C25/00 ,  G01R33/028 ,  G01C19/56

CPC classification number: G01C17/38 ,  G01C19/56 ,  G01C25/005 ,  G01R33/00 ,  G01R33/0035 ,  G01R33/022 ,  G01R33/028

Abstract: Systems and methods may provide for obtaining first sensor data associated with a gyroscope and obtaining second sensor data associated with a magnetometer. Additionally, the first sensor data, the second sensor data and an extended Kalman filter may be used to calibrate the magnetometer. In one example, a sampling rate of the magnetometer is increased before obtaining the second sensor data and the sampling rate of the magnetometer is decreased after calibration of the magnetometer.