Sensing system
US7689381B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2008 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Oct 10, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0428
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A sensing system is adapted to sense a pointer and calculate a location of the pointer. The sensing system includes a panel, a reflective element, an image sensor and a processor connected to the image sensor. The panel has a first plane and a first area located at the first plane. The first area is quadrangular and has a first boundary, a second boundary, a third boundary and a fourth boundary connected in order. The reflective element is disposed at the first boundary and located on the first plane. A second plane of the reflective element which is a reflective plane is substantially perpendicular to the first plane and mirrors the first area to form a second area. The image sensor sensing the first and the second areas is disposed at a corner at which the third boundary and the fourth boundary intersects and located on the first plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.