Patents by Inventor Dominique Decavele

Dominique Decavele 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).

  • Patent number: 4498000
    Abstract: The invention relates to a method and devices allowing exchange of data between authorized bearers of crediting means (1) to be identified, approved and possibly coded and to remote centralized processing machines (3) via specific terminal units (2). The data produced by a bearer of a crediting means (1) after connection of said means (1) to a terminal unit (2) and sending of the identity of said means (1) are approved by a logic generation unit (15) of the means (1) from an individualization code and from transaction data. The invention applies to the exchange of data in an insecure environment and more particularly to bank credit card systems.
    Type: Grant
    Filed: August 12, 1982
    Date of Patent: February 5, 1985
    Assignee: Transac-Alcatel
    Inventors: Dominique Decavele, Jean-Pierre Fournier
  • Patent number: 4408119
    Abstract: The object requires a would-be user to supply an authorization code within a predetermined number of attempts, otherwise the object is invalidated. The object has at least one memory (1) in which the results of attempts at use are stored in permanent binary form. The object also includes memory write means (3) and discriminator means (9). These are arranged to distinguish between an un-interrupted sequence of said predetermined number of failed attempts (in which case the object is invalidated) and a sequence of failed attempts which is interrupted by at least one successful attempt.
    Type: Grant
    Filed: July 10, 1981
    Date of Patent: October 4, 1983
    Assignee: Transac-Alcatel-Compagnie pour le Development des Transactions Automatiques
    Inventor: Dominique Decavele