A storage device allows expanding user utilizable applications by storing information permitted to be read according to a certificate and information permitted to be read according to information determined by a user. An information distributor receives a certificate from the storage device and after...http://www.google.fr/patents/US20040068631?utm_source=gb-gplus-shareBrevet US20040068631 - Storage device
Numéro de demande: 10/463,768 Numéro de publication: US 2004/0068631 A1 Date de dépôt: 18 juin 2003 Brevet délivré: US7415729 ( Date de délivrance 19 août 2008)
