Patents by Inventor Richard J. Simard

Richard J. Simard 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).

  • Secure encryption and hiding of data and messages in images
    Patent number: 6094483
    Abstract: A method of encryption features the steps of first encrypting a message and then hiding (embedding) it within a digital image carrier. This is accomplished by only slightly changing the gray levels of the image carrier. The changes are imperceptible to the human eye, because they appear as random thermal noise that is commonly present in digitized images.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: July 25, 2000
    Assignee: Research Foundation of State University of New York
    Inventors: Jiri Fridrich, Richard J. Simard