Patent · US Active

Mobile devices and methods for determining orientation information thereof

US10247550B2 · kind B2 · utility

2Cited by

4References

16Claims

0Family size

Assignee

VIA ALLIANCE SEMICONDUCTOR CO., LTD. · CN

Inventors

Xia LIN · Chengdu, CN
Dongxing Wu · Beijing, CN
Deming Gu · Shanghai, CN
Yang Mao · Shanghai, CN

Key dates

Filing date	Dec 1, 2016
Grant date	Apr 2, 2019
Priority date	—
Expiry date	Jul 11, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01C21/1654
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A mobile device including an acceleration sensor, a magneto sensor, a gyroscope sensor, and a processor is provided. The acceleration sensor, the magneto sensor, and the gyroscope sensor generate acceleration data, magnetic field data, and angular velocity data, respectively. The processor determines a pitch angle and a roll angle according to the acceleration data, determines a yaw angle according to the magnetic field data, and determines a quaternion according to the pitch angle, the roll angle, and the yaw angle. Also, the processor determines orientation information of the mobile device according to the quaternion and the angular velocity data, and adjusts the orientation information according to the acceleration data and the magnetic field data.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.