Patents by Inventor Daniel BIGOT

Daniel BIGOT 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).

  • Method for detecting at least one compromised computer device in an information system
    Patent number: 11316596
    Abstract: Disclosed is a method for detecting at least one compromised computer device in an information system, the method including: performing a frequency scan involving dividing the electromagnetic spectrum into frequency sub-bands; performing, in each frequency sub-band, a time envelope demodulation in order to recover signals transmitted by at least one computer device of the information system; converting each demodulated signal in the frequency domain; constructing a frequency spectrum on the basis of the demodulated signals in all the frequency sub-bands; finding, in each frequency sub-band of the frequency spectrum, at least one amplitude line having energy that is greater than a first predefined energy threshold; and, if at least one line having energy that is greater than the first predefined energy threshold is found, indicating the presence of at least one compromised computer device transmitting compromising spurious signals.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: April 26, 2022
    Assignee: ETAT FRANçAIS REPRÉSENTÉ PAR LE DÉLÉGUÉ GÉNÉRAL POUR L'ARMEMENT
    Inventors: Sébastien Mallier, Erwan Nogues, Thierry Dandois, Daniel Bigot
  • METHOD FOR DETECTING AT LEAST ONE COMPROMISED COMPUTER DEVICE IN AN INFORMATION SYSTEM
    Publication number: 20210320730
    Abstract: Disclosed is a method for detecting at least one compromised computer device in an information system, the method including: performing a frequency scan involving dividing the electromagnetic spectrum into frequency sub-bands; performing, in each frequency sub-band, a time envelope demodulation in order to recover signals transmitted by at least one computer device of the information system; converting each demodulated signal in the frequency domain; constructing a frequency spectrum on the basis of the demodulated signals in all the frequency sub-bands; finding, in each frequency sub-band of the frequency spectrum, at least one amplitude line having energy that is greater than a first predefined energy threshold; and, if at least one line having energy that is greater than the first predefined energy threshold is found, indicating the presence of at least one compromised computer device transmitting compromising spurious signals.
    Type: Application
    Filed: June 24, 2019
    Publication date: October 14, 2021
    Inventors: Sébastien MALLIER, Erwan NOGUES, Thierry DANDOIS, Daniel BIGOT