Input method for surface of interactive display
US7911444B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2005 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Jul 20, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04108
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An interactive display system configured for detecting an object or user input provided with an object. The system includes a display surface on which graphic images are displayed, one or more scanning light sources configured for scanning the interactive display surface, and a light detector configured for detecting light reflected from an object that is adjacent to or in contact with the interactive display surface. A computing system storing machine instructions is in communication with the scanning light source and the light detector. When executed, the machine instructions cause the computing system to illuminate the interactive display surface with the scanning light source, to detect light with the light detector that is reflected from an object after illumination with the light source, and to generate an output signal based on the detected light that has been reflected from an object on or adjacent to the interactive display surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.