Patents Assigned to Gieseke & Devrient GmbH
  • Data medium incorporating integrated circuits
    Patent number: 5965867
    Abstract: A data carrier is shown having at least two integrated circuits disposed one on the other in the carrier in a partial area, at least one of the circuits being able to communicate with external devices via coupling elements. To make communication between the integrated circuits as simple as possible, the integrated circuits have communication units permitting communication between the circuits via a nongalvanic, contactless coupling.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: October 12, 1999
    Assignee: Gieseke & Devrient GmbH
    Inventor: Yahya Haghiri-Tehrani