Patents by Inventor Nicolas CAPET

Nicolas CAPET 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).

  • Publication number: 20200284918
    Abstract: An add-on device configured to reduce the power level of reflected paths of GNSS signals reaching a GNSS receiver's antenna, the associated GNSS receiver set, some equipment embedding the add-on device, and the associated method to reduce the power level of reflected GNSS signals are provided. The GNSS signals are transmitted according to a first polarization, and the add-on device comprises a material configured to be transparent to the first polarization and to reflect GNSS signals polarized according to a second polarization orthogonal to the first polarization.
    Type: Application
    Filed: November 14, 2018
    Publication date: September 10, 2020
    Inventors: Nicolas CAPET, François-Xavier MARMET
  • Patent number: 10732291
    Abstract: A GNSS receiver, and an associated method are presented for calculating a position from positioning signals transmitted by a plurality of GNSS transmitters. For example the receiver compsises a first and a second signal acquisition elements having different polarizations, the receiver being configured to process the signals received on the first signal acquisition element to calculate first pseudo range measurements, and the signals received on the second signal acquisition element to calculate second pseudo range measurements and associated quality indicators. The receiver further comprises a calculation circuit configured to select at least one of the second pseudo range measurements depending on the quality indicators, and compare it with the corresponding first pseudo range measurement, and select at least three first pseudo range measurements based on the comparison results to calculate a position.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: August 4, 2020
    Assignee: CENTRE NATIONAL D'ETUDES SPATIALES
    Inventors: Nicolas Capet, François-Xavier Marmet
  • Patent number: 10656283
    Abstract: The invention discloses an antenna assembly comprising one or more sensors, possibly a fish-eye camera which produces images of the sky above the antenna, said images being processed to identify open sky and occulted sky areas, said identification being used to generate an antenna gain pattern shape wherein null zones are placed on the occulted sky areas, so as to eliminate the GNSS signals which are affected by multipath reflection. The antenna assembly of the invention may be used with any GNSS receiver of the prior art. No specific data on the location of the receiver or its orientation is needed to perform the method of the invention, while in some embodiments, it may be useful to send some information on the number of satellites in view in the open sky.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: May 19, 2020
    Assignee: CENTRE NATIONAL D'ETUDES SPATIALES
    Inventors: Nicolas Capet, François-Xavier Marmet
  • Patent number: 10605927
    Abstract: The invention discloses a constellation of relay vehicles comprising a receiver of navigation signals and a transmitter of positioning signals to an area of service where a number of rovers manoeuver, wherein the position of the relay vehicle may be adjusted to optimize one or more of an SNR or a DOP index of the positioning signals. In some embodiments, the optimal configuration of the constellation of relay vehicles may be further defined based on priority indexes allocated to the rovers. The invention is applicable to terrestrial or underwater rovers, respectively serviced by aerial or nautical relay vehicles.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: March 31, 2020
    Assignee: CENTRE NATIONAL D'ETUDES SPATIALES
    Inventors: François-Xavier Marmet, Nicolas Capet
  • Publication number: 20190319327
    Abstract: The present disclosure relates to a multilayer electromagnetic waveguide that includes a plurality of layers forming guide channels for an electromagnetic wave, and at least one transition device including at least one dielectric layer between two guide channels, referred to as coupled guide channels, extending as an extension. Each transition device includes at least one adaptation channel extending in a longitudinal direction, and each adaptation channel is defined by two electrically conductive walls. At least one wall extends along the dielectric spacer layer from one end of the coupled guide channel, over a length suitable for optimizing the transmission of an electromagnetic wave between the two coupled guide channels.
    Type: Application
    Filed: October 16, 2017
    Publication date: October 17, 2019
    Applicant: Centre National d'Etudes Spatiales CNES
    Inventors: Nicolas CAPET, Francesco FOGLIA MANZILLO, Karim TEKKOUK, Ronan SAULEAU, Mauro ETTORRE
  • Publication number: 20190144421
    Abstract: Novel benzimidazole enantiomeric derivatives, their process of preparation and their therapeutical uses as dual H1 and H4 receptor ligands are disclosed.
    Type: Application
    Filed: November 15, 2018
    Publication date: May 16, 2019
    Inventors: Isabelle BERREBI-BERTRAND, Xavier BILLOT, Thierry CALMELS, Marc CAPET, Stéphane KRIEF, Olivier LABEEUW, Jeanne-Marie LECOMTE, Nicolas LEVOIN, Xavier LIGNEAU, Philippe ROBERT, Jean-Charles SCHWARTZ
  • Patent number: 10126341
    Abstract: A process and a device for measuring intermodulation products by wave reflection on a non-linear object (20), including two electromagnetic sources (24, 25) of distinct focal points emitting fundamental components, and a receiver (28), the process includes a step in which the measuring device is in a configuration so that the receiver (28) produces a signal for a first composition of the enriched wave (23), and a second step in which the measuring device is in a second configuration so that the receiver (28) produces a measuring signal for a second composition of the enriched wave (23).
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: November 13, 2018
    Assignee: CENTRE NATIONAL D'ETUDES SPATIALES C N E S
    Inventors: Jacques Sombrin, Isabelle Albert, Geoffroy Soubercaze-Pun, Nicolas Capet
  • Publication number: 20180284291
    Abstract: The invention discloses a constellation of relay vehicles comprising a receiver of navigation signals and a transmitter of positioning signals to an area of service where a number of rovers manoeuver, wherein the position of the relay vehicle may be adjusted to optimize one or more of an SNR or a DOP index of the positioning signals. In some embodiments, the optimal configuration of the constellation of relay vehicles may be further defined based on priority indexes allocated to the rovers. The invention is applicable to terrestrial or underwater rovers, respectively serviced by aerial or nautical relay vehicles.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 4, 2018
    Applicant: CENTRE NATIONAL D'ETUDES SPATIALES
    Inventors: François-Xavier MARMET, Nicolas CAPET
  • Publication number: 20180180741
    Abstract: The invention discloses an antenna assembly that may be connected to a standard GNSS receiver. The antenna assembly comprises antenna elements that are configured to shape a radiating pattern which is directional in a direction of movement of the GNSS receiver and which has a FOV above the receiver that may be limited. The signals received in LOS will then have a much better C/N0 than the Non-LOS signals. In some embodiments, the FOV may be twisted leftwards or rightwards depending on a configuration of a vehicle carrying the receiver. In some embodiments, the antenna assembly is capable of operating in a plurality of modes that will differ notably by the FOV of the radiating pattern above the receiver. Switching between modes may be triggered manually or automatically and may be based on a determination of the prevalence and/or type of multipath reflections in the area where the rover moves.
    Type: Application
    Filed: December 19, 2017
    Publication date: June 28, 2018
    Applicant: CENTRE NATIONAL D'ETUDES SPATIALES
    Inventors: Nicolas CAPET, François-Xavier MARMET
  • Publication number: 20180180742
    Abstract: The invention refers to a GNSS receiver, and associated method, for calculating a position from positioning signals transmitted by a plurality of GNSS transmitters, said receiver comprising a first and a second signal acquisition elements (301) having different polarizations, the receiver being configured to process the signals received on said first signal acquisition element to calculate first pseudo range measurements (203), and the signals received on said second signal acquisition element to calculate second pseudo range measurements (303) and associated quality indicators (304), said receiver comprising a calculation circuit (306) configured to: select at least one of the second pseudo range measurements depending on the quality indicators, and compare it with the corresponding first pseudo range measurement, and select at least three first pseudo range measurements based on the comparison results to calculate a position (204).
    Type: Application
    Filed: December 19, 2017
    Publication date: June 28, 2018
    Applicant: CENTRE NATIONAL D'ETUDES SPATIALES
    Inventors: Nicolas CAPET, François-Xavier MARMET
  • Publication number: 20180114441
    Abstract: The invention discloses a positioning device configured to acquire its own GNSS position, the GNSS positions of rovers in an area around the positioning device and the relative positions of the positioning device to the rovers. The positioning device is configured to calculate a best-fit position based on this data and their confidence indexes. The positioning devices may communicate directly or through a navigation assistance centre. The best-fit position may be provided with indexes of confidence, availability and integrity. In some embodiments, the positioning device of the invention may be robust enough to generate commands to the driving controls of an autonomous vehicle.
    Type: Application
    Filed: October 20, 2017
    Publication date: April 26, 2018
    Applicant: CENTRE NATIONAL D'ETUDES SPATIALES
    Inventors: François-Xavier MARMET, Lionel RIES, Nicolas CAPET
  • Publication number: 20170343677
    Abstract: The invention discloses an antenna assembly comprising one or more sensors, possibly a fish-eye camera which produces images of the sky above the antenna, said images being processed to identify open sky and occulted sky areas, said identification being used to generate an antenna gain pattern shape wherein null zones are placed on the occulted sky areas, so as to eliminate the GNSS signals which are affected by multi-path reflection. The antenna assembly of the invention may be used with any GNSS receiver of the prior art. No specific data on the location of the receiver or its orientation is needed to perform the method of the invention, while in some embodiments, it may be useful to send some information on the number of satellites in view in the open sky.
    Type: Application
    Filed: May 16, 2017
    Publication date: November 30, 2017
    Applicant: CENTRE NATIONAL D'ETUDES SPATIALES
    Inventors: Nicolas CAPET, François-Xavier MARMET
  • Publication number: 20160061868
    Abstract: A process and a device for measuring intermodulation products by wave reflection on a non-linear object (20), including two electromagnetic sources (24, 25) of distinct focal points emitting fundamental components, and a receiver (28), the process includes a step in which the measuring device is in a configuration so that the receiver (28) produces a signal for a first composition of the enriched wave (23), and a second step in which the measuring device is in a second configuration so that the receiver (28) produces a measuring signal for a second composition of the enriched wave (23).
    Type: Application
    Filed: August 24, 2015
    Publication date: March 3, 2016
    Inventors: Jacques SOMBRIN, Isabelle ALBERT, Geoffroy SOUBERCAZE-PUN, Nicolas CAPET