Cashierless shopping store and components for use therein
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United States of America Patent
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Apr 20, 2004
Issued Date -
N/A
app pub date -
Oct 1, 1999
filing date -
Apr 1, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A cashierless shopping store includes a plurality of shopping carts into which selected items to be purchased are placed by shoppers. Each of the shopping carts includes a weight detector to measure the weight of items placed therein and a transmitter to transmit the measured weights over a wireless communications link. A portable wireless shopping terminal accompanies each of the shopping carts. Each shopping terminal reads item price and item weight data from each selected item to be purchased and receives the measured weight of each selected item transmitted over the wireless communication link by the transmitter. The shopping terminal compares the read item weight data with the transmitted measured weight to determine if the read item weight data and the transmitted measured weight for each selected item correlate. At least one checkout station is provided and includes a scale to measure the total weight of selected items in a shopping cart and a transmitter to transmit the measured total weight over the wireless communications link to the shopping terminal accompanying that shopping cart. The shopping terminal compares the measured total weight with the sum of the read item weight data to determine if the weights correlate.
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