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:
Nov. 06, 2012
Filed:
May. 01, 2009
Thomas Larsson, Älvsjö, SE;
Thomas Larsson, Älvsjö, SE;
Smarttrust AB, Stockholm, SE;
Abstract
When deactivating a subscription and SIM card, the SIM card is connected to the ODA database, an instruction to deactivate the SIM card and cancel the subscription is transferred to the ODA, information in the memory of the SIM card including the IMSI (International Mobile Subscriber Identity) of the SIM card, is transferred to the ODA, which is arranged to be connected to the network, including a HLR/AUC. The ODA retrieves the subscription information, and replaces the IMSI of the SIM card with a temporary IMSI called IMSI-T. The ODA stores the information in the memory of the SIM card together with the IMSI-T in the database. The ODA also stores the information together with the IMSI-T and transfers to the network an instruction to cancel the subscription in the network. The SIM card may be reactivated using the information stored in the ODA database and on the SIM card including the IMSI-T.