Electronic compass and method of controlling an electronic compass using independent calibration and compass heading modules
US7248983B2 · kind B2 · utility
19Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2005 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Apr 7, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C17/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for controlling an electronic compass includes receiving raw magnetic field data into a calibration module and determining a calibration output based upon the raw magnetic field data. The raw magnetic field data is also received into a compass heading module for determining compass heading outputs based upon the raw magnetic field data. The calibration module filters the raw magnetic field data and validates the calibration outputs independently from output data filtering and results validation in the compass heading module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.