Portable optical touch system
US8773375B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 18, 2011 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Dec 9, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0428
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
There is provided a portable optical touch system including a first image sensing module, a second image sensing module, a connecting device, a communication interface and a processing circuit. The two image sensing modules have partially overlapped field of views and the partially overlapped field of views is for defining a touch region. The connecting device is configured to adjust or fix a distance between the first and second image sensing modules. When an object is in the touch region, the processing circuit calculates a position of the object according to images of the object acquired by the two image sensing modules and outputs information of the position of the object through the communication interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.