Patents by Inventor Francois Commagnac

Francois Commagnac 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).

  • System for tamper detection
    Patent number: 7791484
    Abstract: The present invention relates to a system for tamper detection. A tamper detection system in accordance with an embodiment of the present invention includes: a passive electronic sensor including a circuit having first, second, and third nodes; a load connected between the first and second nodes of the circuit; a friable electrical connection element connected between the second and third nodes of the circuit; and a storage unit, connected to the second node of the circuit, for storing an identification code of the sensor; wherein in use a voltage is applied across the first and third nodes of the circuit, and when the friable electrical connection element is intact, the second node of the circuit is at a first voltage, and when the friable electrical connection element is broken, the second node of the circuit is at a second voltage.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: September 7, 2010
    Assignee: International Business Machines Corporation
    Inventors: Francois Commagnac, Jean-Christophe Mestres, Joaquin Picon, Pierre Secondo
  • SYSTEM FOR TAMPER DETECTION
    Publication number: 20080211676
    Abstract: The present invention relates to a system for tamper detection. A tamper detection system in accordance with an embodiment of the present invention includes: a passive electronic sensor including a circuit having first, second, and third nodes; a load connected between the first and second nodes of the circuit; a friable electrical connection element connected between the second and third nodes of the circuit; and a storage unit, connected to the second node of the circuit, for storing an identification code of the sensor; wherein in use a voltage is applied across the first and third nodes of the circuit, and when the friable electrical connection element is intact, the second node of the circuit is at a first voltage, and when the friable electrical connection element is broken, the second node of the circuit is at a second voltage.
    Type: Application
    Filed: April 24, 2008
    Publication date: September 4, 2008
    Inventors: Francois Commagnac, Jean-Christophe Mestres, Joaquin Picon, Pierre Secondo
  • System and method of tamper detection
    Patent number: 7382262
    Abstract: The present invention relates to a system and method of tamper detection. A tamper detection system in accordance with an embodiment of the present invention includes: a passive electronic sensor including a circuit having first, second, and third nodes; a load connected between the first and second nodes of the circuit; a friable electrical connection element connected between the second and third nodes of the circuit; and a storage unit, connected to the second node of the circuit, for storing an identification code of the sensor; wherein in use a voltage is applied across the first and third nodes of the circuit, and when the friable electrical connection element is intact, the second node of the circuit is at a first voltage, and when the friable electrical connection element is broken, the second node of the circuit is at a second voltage.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: June 3, 2008
    Assignee: International Business Machines Corporation
    Inventors: Francois Commagnac, Jean-Christophe Mestres, Joaquin Picon, Pierre Secondo
  • System and method of tamper detection
    Publication number: 20060238341
    Abstract: The present invention relates to a system and method of tamper detection. A tamper detection system in accordance with an embodiment of the present invention includes: a passive electronic sensor including a circuit having first, second, and third nodes; a load connected between the first and second nodes of the circuit; a friable electrical connection element connected between the second and third nodes of the circuit; and a storage unit, connected to the second node of the circuit, for storing an identification code of the sensor; wherein in use a voltage is applied across the first and third nodes of the circuit, and when the friable electrical connection element is intact, the second node of the circuit is at a first voltage, and when the friable electrical connection element is broken, the second node of the circuit is at a second voltage.
    Type: Application
    Filed: April 19, 2006
    Publication date: October 26, 2006
    Applicant: International Business Machines Corporation
    Inventors: Francois Commagnac, Jean-Christophe Mestres, Joaquin Picon, Pierre Secondo