Patents by Inventor Stobodan Cvetkovic

Stobodan Cvetkovic 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).

  • System & Method for Authenticating Objects Using Multiple-Level Encoding and Decoding
    Publication number: 20080044089
    Abstract: A method of producing a digital multiple-level encoded image is presented. The method comprises obtaining a digital authentication image, obtaining a first encoding parameter set comprising one or more encoding parameters, and constructing a first encoded image. The first encoded image is constructed using a first encoding methodology, the digital authentication image and the first encoding parameter set. The method further comprises obtaining a second encoding parameter set comprising one or more encoding parameters and constructing a second encoded image using a second encoding methodology, the first encoded image and the second encoding parameter set. The second encoded image may be decoded to reveal the first encoded image using a decoder having characteristics corresponding to at least a portion of the encoding parameters of the second encoding parameter set.
    Type: Application
    Filed: October 24, 2007
    Publication date: February 21, 2008
    Applicant: Graphic Security Systems Corporation
    Inventors: Alfred Alasia, Alfred Alasia, Thomas Alasia, Stobodan Cvetkovic