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. 10, 2010
Filed:
Dec. 12, 2005
Peter Meerwald, Elsbethen, AT;
Andreas Winter, Altenmarkt, AT;
Oliver Kubera, Florian, AT;
Gunther Kattner, Hallein, AT;
Harald Herwig Gabl, Hallein, AT;
Peter Meerwald, Elsbethen, AT;
Andreas Winter, Altenmarkt, AT;
Oliver Kubera, Florian, AT;
Gunther Kattner, Hallein, AT;
Harald Herwig Gabl, Hallein, AT;
SONY DADC Austria AG, Anif, AT;
Abstract
The invention relates to a memory authentication method based on a pattern of storage areas of said memory that have altered latencies that are respectively altered such that the respective alteration of the latency of a storage area lies within a measurement noise of latency measurements in respect to the standard latency of said storage area when the measurement is performed with a reading device for accessing said record medium. The verification is then performed by a correlation of the latencies of the altered storage areas with a key used to alter the storage areas.