This invention describes a system and methods for media content subscription service distribution; typical services include cable television, premium content channels, pay-per-view, XM radio, and online mp3 services. Subscribers use portable electronic devices to store digital certificates certifying...http://www.google.fr/patents/US20050160042?utm_source=gb-gplus-shareBrevet US20050160042 - System and methods for assignation and use of media content subscription service privileges
System and methods for assignation and use of media content subscription ...
Numéro de demande: 10/858,336 Numéro de publication: US 2005/0160042 A1 Date de dépôt: 1 juin 2004 Brevet délivré: US7783892 ( Date de délivrance 24 août 2010)
