A media enhanced shopping cart system comprises a shopping cart comprising a frame, a basket, a handle, a base tray, a plurality of wheels, a read component for performing a proximity scan of the shopping cart, a locationing component for determining a location of the shopping cart within a store based...http://www.google.de/patents/US7679522?utm_source=gb-gplus-sharePatent US7679522 - Media enhanced shopping systems with electronic queuing
