Method and a device for optically detecting the position of an object by measuring light reflected by that object
US7518738B2 · kind B2 · utility
39Cited by
6References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2004 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | Jul 1, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0421
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This detection method comprises: a step during which a receiver measures the quantity of light reflected by an object when the object is illuminated by an emitter for at least two different emitter—receiver pairs on the same side relative to the object, a step of calculating at least two characteristic values from the measured values, and a step of determining at least one position of the object by directly reading a table indexed by the two characteristic values, the content of said table being predetermined and set before said measurement step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.