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:
Mar. 13, 2012
Filed:
Dec. 01, 2010
Ralph Kulessa, Hilpoltstein, DE;
Jörg Pickel, Pommelsbrunn, DE;
Stefan Krägeloh, Erlangen, DE;
Patrick Aichroth, Erlangen, DE;
Frank Siebenhaar, Nürnberg, DE;
Christian Neubauer, Nürnberg, DE;
Wolfgang Spinnler, Erlangen, DE;
Ralph Kulessa, Hilpoltstein, DE;
Jörg Pickel, Pommelsbrunn, DE;
Stefan Krägeloh, Erlangen, DE;
Patrick Aichroth, Erlangen, DE;
Frank Siebenhaar, Nürnberg, DE;
Christian Neubauer, Nürnberg, DE;
Wolfgang Spinnler, Erlangen, DE;
Abstract
The present invention relates to a device for detecting a manipulation of an information signal, having an extractor for extracting an information signal component characteristic for the information signal from the information signal, an encrypter for encrypting the information signal component to obtain an encrypted signal, and a comparator for comparing the encrypted signal to a reference signal, wherein the reference signal is an encrypted representation of a non-manipulated reference signal component of a reference information signal to detect the manipulation.