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:
Oct. 04, 2005
Filed:
Mar. 10, 2000
Peter Post, Berlin, DE;
Dirk Rosenau, Berlin, DE;
Torsten Schlaaff, Zepernick, DE;
Francotyp-Postalia AG & Co., Birkenwerder, DE;
Abstract
A method for protecting a security module includes the steps of monitoring proper insertion of the module on a device motherboard with first, second and third function units, erasing sensitive data due to an improper use or a replacement of the module with the second function unit, inhibiting the functionality of the module with the third function unit during a replacement of the security module, re-initializing the previously erased, sensitive data following proper use or replacement of the security module, and re-commissioning by enabling the function units of the security module. An arrangement implementation of the method has an unplugged status detection unit that has a circuit for resettable self-holding of a status indicator, the self-holding being triggered when the voltage level on a test voltage line deviates from a predetermined potential. A processor connected to the other function units and is programmed to identify and modify the status of the security module.