| 摘要 |
<p>A shopping cart includes a cart platform; a handle bar; wheels; a product scale; a basket resting on the scale independent of any support by the platform; and a user interface. The cart further includes a product sensor with a processor to read product information. The product scale, which weighs the products to ensure correspondence between the product price and its weight, is constituted merely by one or more transducers in operable contact with the basket.</p> |
