Enforcing rendering advertisements and other predetermined media content in connection with playback of downloaded selected media content. Playback of selected media content is made conditional on acquisition of a playback token that is generated in response to playback of the predetermined content....http://www.google.fr/patents/US20070294772?utm_source=gb-gplus-shareBrevet US20070294772 - ENFORCING ADVERTISEMENT PLAYBACK FOR DOWNLOADED MEDIA CONTENT
ENFORCING ADVERTISEMENT PLAYBACK FOR DOWNLOADED MEDIA CONTENT
Numéro de demande: 11/424,208 Numéro de publication: US 2007/0294772 A1 Date de dépôt: 14 juin 2006 Brevet délivré: US7836511 ( Date de délivrance 16 nov. 2010)
