Patents by Inventor Alan Valev Tonnison

Alan Valev Tonnison 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).

  • Image protection
    Patent number: 7251343
    Abstract: A method (100) of marking an image comprising image data and associated metadata, for modification detection, is disclosed. The method (100) encodes the image data to produce encoded image data and hashes the encoded image data to provide a first hash. The first hash is added to the associated metadata to form augmented metadata the associated metadata is hashed to provide a second hash. The second hash is added to the augmented metadata. An association is created between the encoded image data, the first and second hash, and the augmented metadata, thereby marking the image.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: July 31, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Andrew James Dorrell, Alan Valev Tonnison
  • Image protection
    Publication number: 20030123701
    Abstract: A method (100) of marking an image comprising image data and associated metadata, for modification detection, is disclosed. The method (100) encodes the image data to produce encoded image data and hashes the encoded image data to provide a first hash. The first hash is added to the associated metadata to form augmented metadata the associated metadata is hashed to provide a second hash. The second hash is added to the augmented metadata. An association is created between the encoded image data, the first and second hash, and the augmented metadata, thereby marking the image.
    Type: Application
    Filed: December 16, 2002
    Publication date: July 3, 2003
    Inventors: Andrew James Dorrell, Alan Valev Tonnison