A system and method to manage and control access to content and transactions for use by a transaction device are described in detail below. In addition, authorization for an account to request content or conduct transactions may be confirmed locally within the transaction device. Further, setting levels...http://www.google.fr/patents/US20020095386?utm_source=gb-gplus-shareBrevet US20020095386 - Account control and access management of sub-accounts from master account
Account control and access management of sub-accounts from master account
