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:
Jul. 22, 2025
Filed:
Sep. 21, 2021
Thales Dis France Sas, Meudon, FR;
Jerome Voyer, Auriol, FR;
Jean-François Gros, Marseilles, FR;
Dominique Petyt, Auribeau sur Siagne, FR;
THALES DIS FRANCE SAS, Meudon, FR;
Abstract
The disclosure proposes a method for switching from a first subscription of a first telecommunication network operator to a second subscription of a second telecommunication network operator on a plurality of smart cards, the method comprising, for each smart card pre-provisioning the smart card with a batch of secret keys at the level of a personalization factory; thanks to a first input file transmitted by the first telecommunication network operator to the personalization factory, generating at the personalization factory an output file comprising a first secret key selected in the batch, a corresponding first IMSI and a first ciphered operator code; transmitting the output file to the first telecommunication network operator; and transmitting OTA keys and the first IMSI to an OTA server of a service provider managing the smart card in order to attach the smart card to the first telecommunication network.