| 摘要 |
In one example, a portable device having a camera downloads checkout software. The camera is then used to capture images of indicia associated with products in a store, such as bar codes. The portable device incrementally transmits messages to a remote server over a packet data connection of the portable device as the portable device moves through the store based on the captured images. The portable device then transmits a message requesting checkout to the remote server, and in response to receiving a reply to the message requesting checkout, causes a checkout price associated with purchasing the products to be displayed on a display of the portable device.
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