Enhanced triangulation
US7468785B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 2007 |
| Grant date | Dec 23, 2008 |
| Priority date | — |
| Expiry date | Jul 19, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0421
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for information input to a computing device including imaging sensors arranged to simultaneously view an input region and enhanced triangulation signal processing circuitry receiving signal outputs from two of the imaging sensors, which signal outputs contain information indicating an angular position of an object relative to each of the two imaging sensors and information representing angles respectively subtended by the object with respect to each of the two imaging sensors, useful for indicating a relationship between the angles respectively subtended by the object with respect to each of the two imaging sensors, the enhanced triangulation signal processing circuitry providing an object location output based not only on the information indicating an angular position of the object but also on the relationship between the angles respectively subtended by the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.