Sensitive display device comprising a scanned screen
US4868551A · kind A · utility
41Cited by
9References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1987 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Feb 24, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0421
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The sensitive display device of the invention comprises a scanned screen in front of which is situated a plate of transparent material; a detector being coupled with the edge of this plate and a specific position on this plate being determined by contact of a diffusing object, such as a finger. The detector picks up a signal which, after processing, enables the position of this point of contact to be determined. The invention may be used, in particular, as an interface between a computer and a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.