Optical storage identification card and read/write system
US4663518A · kind A · utility
235Cited by
10References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1985 |
| Grant date | May 5, 1987 |
| Priority date | — |
| Expiry date | Oct 31, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S283/904
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An identification card comprises a single media having a plurality of different heat sensitive image forming dye compounds on which are encoded a colored pictorial image of the card holder, colored text, and machine readable digital data. A laser printing method is also provided for activating the heat sensitive image forming dyes to provide the colored pictorial image of the card holder, the colored text and the machine readable digital code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.