Patents by Inventor Frederic Faurie

Frederic Faurie 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).

  • Patent number: 9146320
    Abstract: The present invention relates to a method for detecting and excluding at least one pseudo-range measured between a satellite and a receiver for receiving signals transmitted by different satellites of a radio-positioning constellation when said pseudo-range is faulty, characterized in that said method includes the steps of: (a) determining an estimation of the position of the receiver from the pseudo-ranges measured by the receiver, (b) estimating, from the thus-estimated position, biases in the measured pseudo-ranges; (c) processing the thus-obtained biases in order to derive a value representative of the probability of a fault for each pseudo-range; (d) preselecting, on the basis of the resulting values, a given number of pseudo-ranges which are most likely to be faulty; (e) determining, for each combination of pseudo-ranges from among the thus-preselected pseudo-ranges, a value of a test variable representative of the likelihood the combination is faulty; (f) selecting, on the basis of the values of the th
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: September 29, 2015
    Assignees: SEGEM DEFENSE SECURITE, UNIVERSITE DE BORDEAUX 1, INSTITUT POLYTECHNIQUE DE BORDEAUX
    Inventors: Mohamed Najim, Audrey Giremus, Frédéric Faurie
  • Publication number: 20130249734
    Abstract: The present invention relates to a method for detecting and excluding at least one pseudo-range measured between a satellite and a receiver for receiving signals transmitted by different satellites of a radio-positioning constellation when said pseudo-range is faulty, characterized in that said method includes the steps of: (a) determining an estimation of the position of the receiver from the pseudo-ranges measured by the receiver, (b) estimating, from the thus-estimated position, biases in the measured pseudo-ranges; (c) processing the thus-obtained biases in order to derive a value representative of the probability of a fault for each pseudo-range; (d) preselecting, on the basis of the resulting values, a given number of pseudo-ranges which are most likely to be faulty; (e) determining, for each combination of pseudo-ranges from among the thus-preselected pseudo-ranges, a value of a test variable representative of the likelihood the combination is faulty; (f) selecting, on the basis of the values of the th
    Type: Application
    Filed: July 15, 2011
    Publication date: September 26, 2013
    Inventors: Mohamed Najim, Audrey Giremus, Frederic Faurie
  • Publication number: 20130162472
    Abstract: The present invention relates to a method for determining a protection space in the event of two faulty measurements of a pseudo-range between a satellite and a receiver for receiving signals transmitted by various satellites in a radio-navigation constellation, characterized in that said method includes the steps of: (a) determining, on the basis of the pseudo-ranges measured by the receiver, a test variable representative of the likelihood of a fault; (b) estimating, for each pair of pseudo-ranges from among the pseudo-ranges measured by the receiver and from the expression of the thus-obtained test variable, a set of minimum-bias pairs detectable for a given missed detection probability; (c) expressing, for each pair of pseudo-ranges, the estimated set of detectable minimum-bias pairs in the form of an equation defining an ellipse associated with the pair of pseudo-ranges in question; (d) expressing the equation of each ellipse in parametric coordinates and expressing each detectable associated minimum-bia
    Type: Application
    Filed: July 15, 2011
    Publication date: June 27, 2013
    Inventors: Mohamed Najim, Audrey Giremus, Frederic Faurie