Apparatus and method for receiving a touch input
US9280237B2 · kind B2 · utility
35Cited by
1References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 17, 2010 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Aug 27, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0028
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Infrared-style touch screens are described having light emission means and light detection means along only two opposing sides of a touch input area, which are nevertheless able to detect and locate a touch object in two dimensions. Certain embodiments use an edge-blurring algorithm to determine the second coordinate, while other embodiments use a form of stereo-scopic vision to determine both coordinates by triangulation. These touch screens have minimal bezel width along two opposing sides of the touch input area, and also offer cost reductions associated with components and product assembly and manufacturing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.