System and method for operating photo-addressable ePaper environment
US7699476B2 · kind B2 · utility
6Cited by
1References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2006 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Nov 9, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2380/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for providing a dynamic audio-visual environment using an eSurface situated in a room environment; a projector situated for projecting images onto the eSurface; a camera situated to picture the room environment; a central processor coupled to the eSurface, the projector and the camera. The processor receives pictures from the camera for detecting the location of the eSurface; and controls the projector to aim its projection beam onto the eSurface. The eSurface is a sheet-like surface having the property of accepting optically projected image when powered, and retaining the projected image after the power is turned off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.