Electronic supermarket shopping system based on electronic certificates

The invention provides a system and a method for electronic supermarket shopping based on electronic certificates. The system comprises an electronic commodity management device, a payment cashier device, an electronic certificate generating device, a verification device and a data statistics device...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WAN QING, JIANG TINGGUO, FAN HANXING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CALCULATING CHECKING-DEVICES COIN-FREED OR LIKE APPARATUS COMPUTING COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES PHYSICS SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR
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