Recording medium with colored picture information, in particular a check card or identity card
US5435599A · kind A · utility
28Cited by
8References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 21, 1994 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | Jul 21, 2014 |
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.