| 摘要 |
<p>Advertising of products in an interactive TV system is facilitated by including additional information (301) in the transmission. Presence of the additional information (301) is detected and in response, the viewer is informed accordingly. An authorized merchant list (303) controls which merchants can present the additional information. The viewer selects whether to display the additional information (301). Connection to a communications network permits viewers (303) to gain further information. The viewer can ultimately initiate a purchasing actions to purchase the products (310).</p> |
