Device location determination
US9109905B2 · kind B2 · utility
5Cited by
12References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 2013 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Jan 21, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/1425
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods, apparatuses and systems of estimating a location of a device are disclosed. One method includes determining a first position of the device, sensing at least one magnetic anomaly at the first position, estimating a location of the magnetic anomaly relative to the first position by determining a plurality of magnetic properties of the magnetic anomaly based on sensed signals of at least a magnetic sensor, and estimating a second position of the device based on a sensed change in a distance from the magnetic anomaly to the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.