Method for the determination of soundness of a sheet-shaped medium, and method for the verification of data of a sheet-shaped medium
US7159241B1 · kind B1 · utility
31Cited by
34References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2000 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Oct 25, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides a service system using a certificate which is easily portable and difficult to counterfeit. The feature of the invention is to use a contactless IC chip as a portable certificate. An IC chip-attached seal is thin and small, and therefore is easily portable and distributable to a user. By integrating or attaching (or sticking) the IC chip into or on a certificate 3910, the counterfeiting of the certificate 3910 becomes difficult.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.