Patent · US Expired

Data carrier with a battery and display

US6966497B1 · kind B1 · utility

6Cited by

12References

1Claims

0Family size

Assignee

GIESECKE & DEVRIENT GMBH · DE

Inventors

Arno Hohmann · Munich, DE
Hans-Michael Graf · Rosenheim, DE

Key dates

Filing date	Mar 22, 2000
Grant date	Nov 22, 2005
Priority date	—
Expiry date	Mar 22, 2020

Classification

Technology area (CPC G)Physics
CPC primaryG06K19/07703
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A data carrier used for an electronic purse including a display arranged to indicate a credit balance present in the electronic purse, and a battery in combination with a device for detecting the usability or probability of use of the display. The device is configured to determine the opereability and brightness of the display. The device is arranged to selectively deactivate the display upon an indication of a predetermined criteria.

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