Recording medium with colored picture information, in particular a check card or identity card
US5350198A · kind A · utility
16Cited by
4References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 16, 1992 |
| Grant date | Sep 27, 1994 |
| Priority date | — |
| Expiry date | Oct 16, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S283/904
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A recording medium is provided with picture information in a tamper-resistant and high-resolution form. The picture information is broken down into a light/dark portion and a color portion. The light/dark portion needed for the visual impression is incorporated in the recording medium in a high-resolution form. The colored picture information is congruently superimposed on this portion so as to produce an integral ensemble. Protection from falsification is ensured by incorporating one of the portions of the picture information in the card structure in largely tamper-resistant fashion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.