Beskyttelsesanordning for et elektrisk kretskort, samt anvendelse av anordningen for å beskytte en leseterminal for magnetkort og/eller kort med mikroprosessor

The present invention relates to a device to protect an electronic card and its use to protect the electronics of a reading terminal of a magnetic and/or microprocessor card. Device to protect a card comprising on a printed circuit an electronic circuit with volatile memory (12) containing programs...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	VERRIER, PHILIPPE, POULENARD, ROGER
Format:	Patent
Sprache:	nor
Schlagworte:	BASIC ELECTRIC ELEMENTS CALCULATING CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHECKING-DEVICES COIN-FREED OR LIKE APPARATUS COMPUTING COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY HANDLING RECORD CARRIERS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PHYSICS PRESENTATION OF DATA PRINTED CIRCUITS RECOGNITION OF DATA RECORD CARRIERS SEMICONDUCTOR DEVICES SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	The present invention relates to a device to protect an electronic card and its use to protect the electronics of a reading terminal of a magnetic and/or microprocessor card. Device to protect a card comprising on a printed circuit an electronic circuit with volatile memory (12) containing programs or information to be protected, characterised in that it comprises a resistive network (21, 22) surrounding the circuit (1) embedded in resin (3), the resistive network (21, 22) being incorporated into an electronic circuit (10) for detecting modifications of the resistance of the network to cause destruction of the information of the volatile memories (12).