Patents by Inventor Guy Dehond

Guy Dehond 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).

  • Publication number: 20120023335
    Abstract: According to the invention, a digital document is protected through: receiving (11) the digital document; receiving (12) associated data comprising at least partially data from the digital document; creating (13) a hash of the associated data; asymmetrically encrypting (14-15) the hash with a private key to generate a digital signature; encoding (16) in a machine-readable code the digital signature and the associated data; and recording (17) the machine-readable code onto a resulting hardcopy. The authenticity of a printed hardcopy of the digital document can be verified through comparison (31) of data extracted from the printed hardcopy (21) with the associated data decoded (23) and verified (24-30) from the machine-readable code.
    Type: Application
    Filed: September 29, 2011
    Publication date: January 26, 2012
    Inventors: Klaas BALS, Guy DEHOND, Nick HOFSTEDE
  • Patent number: 5907848
    Abstract: A method and system of providing external transaction protection for a database using the database log or journal. The method involves creating a set of transaction templates which define transactions, using the templates to determine whether each record or entry in the journal represent part of a transaction, and maintaining a set of index file indicating transactions in progress. Each transaction template contains a number of filenames identifying files in the database affected during the transaction defined by the template. Each template also contains a key value representing one or more data fields in the database included in every action performed during the transaction. For each entry in the journal, a determination is made whether the entry belongs to a transaction based on the data fields represented in the entry and the key values associated with the templates.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: May 25, 1999
    Assignee: Lakeview Technology, Inc.
    Inventors: Kenneth A. Zaiken, Guy Dehond, Dan Boggs