Systems and methods for optical sensor navigation
US10670402B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2014 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Oct 31, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods are disclosed for determining a navigational constraint for a portable device using an optical sensor. The navigational constraint may be used to supplement other navigational solutions or may be used independently. The optical sensor may capture a plurality of samples to be processed to determine the constraint. Determining the constraint may include any or all of determining a context for usage, distinguishing usage modes, estimating an orientation of the portable device, determining an absolute and/or relative elevation, determining a direction of motion and determining a speed of the portable device from the samples.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.