Systems and methods for determining a barometric pressure bias of a mobile device
US11143506B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2019 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Apr 24, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/206
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A device determines, periodically over time, geographic locations of the device. The device receives altitude values that identify altitudes for the geographic locations. The device determines measured barometric pressures for the geographic locations. The device determines expected barometric pressures for the geographic locations based on a reference altitude associated with a reference location, reference barometric pressures associated with the reference location, and the altitudes for the geographic locations. The device determines a barometric pressure bias that is based on respective differences between at least a subset of the expected barometric pressures and a corresponding subset of the measured barometric pressures for the geographic locations. The device performs one or more actions based on the barometric pressure bias.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.