Displacement sensing system
US8218004B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Oct 22, 2009 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Feb 11, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30208
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A displacement sensing system is disclosed. Two image capturing devices are settled at to opposite ends of a coordinate axis of the planar area, respectively, for capturing images of the planar area and an object placed thereon. Four pre-established LUT databases and an interactive four-matrix lookup table process are implemented to determine actual coordinates of the object on in the planar area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.