Display system with image scanning apparatus
US6052118A · kind A · utility
8Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 1996 |
| Grant date | Apr 18, 2000 |
| Priority date | — |
| Expiry date | Jul 3, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/1004
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display system comprises a display screen and drive means for scanning a picture onto the display screen in response to a video signal. Image scanning apparatus in the display system comprises photo-detection means optically coupled to the display screen for generating an image signal on detection of any light from the scanned picture reflected back into the display screen by an external article and subsequently internally reflected within the display screen. Storage means stores the image signal detected by the photo-detection means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.