Method of generating a security design with the aid of electronic means
US5772249A · kind A · utility
37Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1995 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Sep 27, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D2035/16
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A net of parallel lines is generated with the aid of a computer. The ratio of the width to the spacing of two consecutive lines is equal to r.sub.o. The spacing and width of the lines are successively modulated such that their ratio is equal to r.sub.o. Subsequently, the straight lines can if so chosen be transformed into differently shaped lines or the width of the strokes can be altered in order to reproduce geometrical or artistic images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.