Patent ID: 6725206
Filing Date: 2004-04-20
Classification: A47F,B62B,G01G,G06Q,G07F,G07G

Abstract:
A cashierless shopping store composing:at least one shopping cart into which items to be purchased are placed, said at least one shopping cart including means to detect the weight of items placed therein and means to transmit detected item weight information over a wireless communication link; at least one portable wireless shopping terminal to accompany said at least one shopping cart and receiving item price and weight information read from items to be purchased prior to placement in said shopping cart, said at least one shopping terminal also receiving the weight information transmitted over said wireless communication link and comparing the read item and transmitted weight information to determine if said weights correlate; and at least one checkout station including means to detect the total weight of items in said at least one shopping cart and means to transmit detected total weight information over said wireless communication link to said at least one shopping terminal, said at least one shopping terminal comparing the transmitted total weight with the sum of read item weights to determine if said total and sum weights correlate.