Patents by Inventor Pierre Kalfon

Pierre Kalfon 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).

  • Data file authentication device
    Patent number: 6167516
    Abstract: A device receives at one input (2) data of a file to be processed, and includes a processing module (5) which at the start of receiving the file, react by three operative stages. These stages include first stage of inserting data blocks from the file into a source memory (MS), after transformation, a second continuous stage of processing each data block of the file, transformed and inserted into the source memory (MS), and a third stage of generating a signature from the transformed, inserted and processed blocks.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: December 26, 2000
    Assignees: Inria Institut National de Recherche en Informatique et en Automatique Cogenit, Compagnie Generale d'Informatique et de Tele-Communications
    Inventors: Paul Camion, Nicolas Sendrier, Fran.cedilla.ois Cordier, Pierre Kalfon