| 摘要 |
<p>A mobile projector device can move throughout a store, above the isles, and project advertisements for the goods in the store. The advertisements can be provided from remote sources. Advertisers can bid against each other for the use of the projector device. Inventory data, sales data, control sales data are provided to advertisers so they can make decisions on when to advertisement and how much to bid on advertising. Demographic data regarding customers at a location using the device (i.e. a store) are provided to the advertisers as well.</p> |
