On-demand electronic advertising information is provided for items used in scenes of television programs. The advertising information is received along with broadcasts of associated television programs. Selected advertisement modes alert a viewer when advertising information is available for an item...http://www.google.fr/patents/US6282713?utm_source=gb-gplus-shareBrevet US6282713 - Method and apparatus for providing on-demand electronic advertising
Method and apparatus for providing on-demand electronic advertising
