Patent · US Expired

Data carrier having an electronic module

US5763869A · kind A · utility

7Cited by

2References

12Claims

0Family size

Assignee

GIESECKE & DEVRIENT GMBH · DE

Inventors

Jürgen Moll · Grünwald, DE
Franz Weikmann · Plön, DE
Michael Lamla · Birkenfeld, DE

Key dates

Filing date	Aug 8, 1996
Grant date	Jun 9, 1998
Priority date	—
Expiry date	Aug 8, 2016

Classification

Technology area (CPC G)Physics
CPC primaryG07F7/082
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A data carrier having an electronic module includes an integrated circuit. The integrated circuit has not only has the usual components, but also an electronic check unit having a nonvolatile memory area and a separate interface. During normal operation of the data carrier, data are written additionally in the electronic check unit. If functional failure of the electronic module of the data carrier occurs, the data are still readable from the memory of the electronic check unit via the separate inter-face even if the integrated circuit is otherwise mechanically destroyed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.