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:
Nov. 11, 2014
Filed:
Aug. 06, 2010
Reinhold Boehm, Nürnberg, DE;
Alexander Groeschel, Nürnberg, DE;
Holger Hoerich, Fürth, DE;
Daniel Homm, Nürnberg, DE;
Wolfgang A. Schildbach, Nürnberg, DE;
Michael Schug, Erlangen, DE;
Oliver Watzke, Röthenbach, DE;
Martin Wolters, Nürnberg, DE;
Thomas Ziegler, Nürnberg, DE;
Reinhold Boehm, Nürnberg, DE;
Alexander Groeschel, Nürnberg, DE;
Holger Hoerich, Fürth, DE;
Daniel Homm, Nürnberg, DE;
Wolfgang A. Schildbach, Nürnberg, DE;
Michael Schug, Erlangen, DE;
Oliver Watzke, Röthenbach, DE;
Martin Wolters, Nürnberg, DE;
Thomas Ziegler, Nürnberg, DE;
Dolby International AB, Amsterdam Zuidoost, NL;
Abstract
The present document relates to techniques for authentication of data streams. Specifically, the present document relates to the insertion of identifiers into a data stream, such as a Dolby Pulse, AAC or HE AAC bitstream, and the authentication and verification of the data stream based on such identifiers. A method and system for encoding a data stream comprising a plurality of data frames is described. The method comprises the step of generating a cryptographic value of a number N of successive data frames and configuration information, wherein the configuration information comprises information for rendering the data stream. The method then inserts the cryptographic value into the data stream subsequent to the N successive data frames.