Patents by Inventor Estelle Pierre

Estelle Pierre 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).

  • Device for controlling relative position(s) by analyzing dual-frequency signals, for a spacecraft of a group of spacecraft in formation
    Patent number: 8463467
    Abstract: A control device (D), for a spacecraft (S1) of a group of spacecraft moving in formation, comprises i) an assembly consisting of three antennas (A1-A3) installed on a face of the spacecraft (S1) and capable of emitting and/or receiving first and second RF signals exhibiting first and second frequencies spaced apart by a chosen frequency gap, ii) first measurement means (M1) charged with determining first and second differences in path length between antennas (A1-A3), corresponding to the first frequency and to the frequency gap, on the basis of the first and second signals received by the antennas and originating from another spacecraft, iii) second measurement means (M2) charged with delivering measurements of rotation undergone by the spacecraft (S1), and iv) processing means (MT) a) charged with coarsely estimating the direction of transmission of the signals received on the basis of first and second initial path length differences, b) with ordering the positioning of the spacecraft (S1) so that a chosen a
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: June 11, 2013
    Assignee: Thales
    Inventors: Christian Mehlen, Estelle Pierre
  • DEVICE FOR CONTROLLING RELATIVE POSITION (S) BY ANALYZING DUAL-FREQUENCY SIGNALS, FOR A SPACECRAFT OF A GROUP OF SPACECRAFT IN FORMATION
    Publication number: 20110160939
    Abstract: A control device (D), for a spacecraft (S1) of a group of spacecraft moving in formation, comprises i) an assembly consisting of three antennas (A1-A3) installed on a face of the spacecraft (S1) and capable of emitting and/or receiving first and second RF signals exhibiting first and second frequencies spaced apart by a chosen frequency gap, ii) first measurement means (M1) charged with determining first and second differences in path length between antennas (A1-A3), corresponding to the first frequency and to the frequency gap, on the basis of the first and second signals received by the antennas and originating from another spacecraft, iii) second measurement means (M2) charged with delivering measurements of rotation undergone by the spacecraft (S1), and iv) processing means (MT) a) charged with coarsely estimating the direction of transmission of the signals received on the basis of first and second initial path length differences, b) with ordering the positioning of the spacecraft (S1) so that a chosen a
    Type: Application
    Filed: January 19, 2007
    Publication date: June 30, 2011
    Applicant: Thales
    Inventors: Christian Mehlen, Estelle Pierre