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:
Aug. 27, 2002
Filed:
Dec. 28, 1998
Michael Smola, München, DE;
Dietmar Zaig, Holzkirchen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
The copy protection system and method combines the features of a conventional electronic data carrier with a dongle to form a secure storage medium. The storage medium has a unique identification, such as a device serial number. The host transmits a challenge signal to the storage medium and then checks the response received from the storage medium for a proper correlation between the useful data and the storage medium. A mismatch indicates that the data is present on a bootleg carrier instead of on its authorized carrier. Therefore, if the response signal in the challenge-response process does not correspond to the expected setpoint response, then the data are not authorized for processing.