Patents Assigned to Promotech, Association pour la Promotion de la Technologie
  • Surface texture reading access checking system
    Patent number: RE33553
    Abstract: Surface texture reading access checking system. The identification information attached to each support object serving as a key is constituted by the texture of a surface portion of said object. A reader reads this information and communicates it to the processing means, which carry out a comparison between the signal read and recorded signals. Application to the production of locks or access checking means for data processing, telematic, banking and similar systems.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: March 12, 1991
    Assignees: Euratom, Communaute Europeenne de l'Energie Atomique, Promotech, Association pour la Promotion de la Technologie
    Inventors: Bertrand C. D'Agraives, Janny Mathieu, Patrick Jamar