The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 2004
Filed:
Dec. 30, 1999
Harri Vatanen, Windsor, GB;
Sonera Oyj, Helsinki, FI;
Abstract
A procedure for the control of applications stored in a user's subscriber identity module (SIM) in a data communication system that includes a data communication network, a terminal device connected to the data communication network and to which the subscriber identity module is connected, and an application control server that is connected to the data communication network. The subscriber identity module contains a stored application that makes use of the data communication network and that is used by way of the terminal device. A key list comprising one or more application-specific keys is stored in the user's subscriber identity module, and a corresponding key list is also stored in the application control server which is operable to control applications stored in the subscriber identity modules of multiple users of the network. The application stored in the user's subscriber identity module is activated and/or closed through the transmission, verification and use of keys stored in the key lists at the subscriber identity module and at the application control server.