05729697 is referenced by 173 patents and cites 16 patents.

The present apparatus is a mobile shopping cart that can automatically keep track of objects selected and carried in the cart and provide a customer using the cart information like the total price of the items carried. The cart has a radio frequency cart base station with a cart antenna connected to a radio frequency cart transceiver. Various novel embodiments of the invention produce a radio frequency field within the shopping cart that is used to communicate with radio frequency tags on objects carried in the cart. The tags contain information about the respective carried object to which the tags are attached. A program function executed by the cart circuit and/or computer controls the cart transceiver to interrogate radio frequency tags within the radio frequency field, i.e. inside the cart to gain information about the carried objects. Tags on objects external to the cart are not interrogated.

Title
Intelligent shopping cart
Application Number
8/428802
Publication Number
5729697
Application Date
April 24, 1995
Publication Date
March 17, 1998
Inventor
Robert Jacob von Gutfeld
New York
NY, US
Mario Schkolnick
San Jose
CA, US
Agent
Louis J Percello
Assignee
International Business Machines Corporation
NY, US
IPC
G06F 15/24
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