| 摘要 |
<p>An electronic module (28) detachably mounted on a shopping cart (20) includes a scanner (54) for scanning bar coded information on items (98) selected for purchase, a data processing device (64) for data storage and control purposes and video recording apparatus (45, 60) capable of recording a view of the selected item as it is scanned and again as it is placed in a receptacle (26) in the shopping cart (20) to enable a customer (17) to generate a record of items selected, which record can be used to facilitate checkout operations, and to provide security against improper scanning, or failure to scan, items (98) selected for purchase.</p> |
