Touch input system using light guides
US8130210B2 · kind B2 · utility
25Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2004 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Sep 23, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0421
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch input system includes a light-emitting device, a bent light guide and a light detector. The light-emitting device emits light. The bent light guide receives the light emitted by the light-emitting device and guides the light to travel in a direction across a face of a display screen. The light detector detects the light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.