Detecting multitouch events in an optical touch-sensitive device using line images
US9063615B2 · kind B2 · utility
1Cited by
17References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2012 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Oct 27, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04109
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical touch-sensitive device is able to determine the locations of multiple simultaneous touch events. The optical touch-sensitive device includes multiple emitters and detectors. Each emitter produces optical beams which are received by the detectors. Touch events disturb the optical beams. Line images of the touch events are captured, which are then used to determine the touch events.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.