Scanning optical positioning system with spatially triangulating receivers
US8711370B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Oct 4, 2013 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Oct 4, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63F13/833
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments are directed towards detecting the three dimensional position of a position sensing device (PSD) utilizing a spot scanned across a remote surface. A trajectory map may be determined for a projection system. The trajectory map may identify a location of the spot at various times during the scan. A PSD may be arranged with a clear view of the remote surface. The PSD may observe at least three spots projected onto the remote surface utilizing three lines of sight that enable moment-in-time linear alignment between the spot and a sensor. Observation angles between each of the lines of sight may be determined. For each observed spot, a transition time may be determined and a location of the observed spot may be determined based on the trajectory map. A position of the PSD may be determined based on determined observed locations and the observation angles of the PSD.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.