Patents Assigned to La Regie Autonome des Transports Parisiens
  • Method for indivisibly modifying a plurality of sites in a microcircuit card non volatile memory, in particular a contactless card
    Patent number: 7370203
    Abstract: A method of connecting a card to a terminal including the following steps: a) on receiving corresponding respective commands from the terminal, it modifies the contents of the card memory by provisionally recording in the card memory each of said interdependent items of information without losing prior values corresponding to said items; and then b) the modifications are finalized either by all of them being confirmed or by all of them being discarded.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: May 6, 2008
    Assignee: La Regie Autonome des Transports Parisiens
    Inventors: Francois Grieu, Stéphane Didier