Patents by Inventor Oliver Watzke

Oliver Watzke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Authentication of data streams
    Patent number: 8885818
    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.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: November 11, 2014
    Assignee: Dolby International AB
    Inventors: Reinhold Boehm, Alexander Groeschel, Holger Hoerich, Daniel Homm, Wolfgang A. Schildbach, Michael Schug, Oliver Watzke, Martin Wolters, Thomas Ziegler
  • Authentication of Data Streams
    Publication number: 20120128151
    Abstract: The present invention relates to techniques for authentication of data streams. Specifically, the invention 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.
    Type: Application
    Filed: August 6, 2010
    Publication date: May 24, 2012
    Applicant: DOLBY INTERNATIONAL AB
    Inventors: Reinhold Boehm, Alexander Groeschel, Holger Hoerich, Daniel Homm, Wolfgang A. Schildbach, Michael Schug, Oliver Watzke, Martin Wolters, Thomas Ziegler