Arrangement for protecting an electronic card and its use for protecting a terminal for reading magnetic and/or microprocessor cards
US5239664A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1992 |
| Grant date | Aug 24, 1993 |
| Priority date | — |
| Expiry date | Sep 28, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an arrangement for protecting an electronic card and to its use for protecting a terminal for reading a magnetic card and/or a microprocessor card. An arrangement for protecting a card including, on a printed circuit, an electronic circuit with volatile memory (12) containing programs or information to be protected, characterized in that it includes a resistive network (21, 22) surrounding the circuit (1) embedded in the resin (3), the resistive network (21, 22) being incorporated in an electronic circuit (10) for detecting modifications to the resistance of the network, to bring about a destruction of the information of the volatile memories (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.