A system for creating, dispensing, and redeeming electronic discount coupons in a store. The system includes a "smart card", product stations adjacent to selected products in the store, and a checkout station in the checkout area. To create an electronic coupon, the customer inserts the card into the...http://www.google.fr/patents/US6173891?utm_source=gb-gplus-shareBrevet US6173891 - Retail store configured for bidirectional communication between a plurality of product shelf areas and a plurality of portable cards
Retail store configured for bidirectional communication between a plurality ...
