Patents by Inventor Julia Eisenberg

Julia Eisenberg 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).

  • Currency verification
    Patent number: 6766045
    Abstract: A method for verifying authenticity of a certificate under test, wherein an authentic version of the certificate has a known watermark in a predetermined watermark region thereof. The method includes capturing an image of at least a portion of the watermark region of the certificate under test. A correlation is found between the image of the watermark region and the known watermark. Responsive to the correlation, a portion of the image of the watermark region is registered with the known watermark, and a range of intensity values in the registered portion of the image is measured. A vector is defined in a decision space, the vector having coordinates given by the range of the intensity values and by a value of the correlation between the image of the watermark region and the known watermark. The certificate under test is determined to be authentic if the vector falls within a predefined area of the decision space.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: July 20, 2004
    Assignee: Digital Verification Ltd.
    Inventors: Edward Slepyan, Alexander Kugel, Julia Eisenberg