Patents by Inventor Gustavo Lopez-Risueno

Gustavo Lopez-Risueno 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).

  • Navigation-satellite tracking method and receiving station
    Patent number: 8134498
    Abstract: A navigation-satellite tracking method includes determining one-way range unambiguous observations for each of a set of satellites in view, wherein standard tracking channels are permanently associated to each of the satellites.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: March 13, 2012
    Assignee: European Space Agency
    Inventors: Francisco Amarillo Fernandez, Gustavo López-Risueño
  • Method of processing positioning signals, in particular for indoor applications
    Patent number: 8059700
    Abstract: A method of processing positioning signal constituted by a superposition of individual signals generated by a plurality of emitters, in particular satellite emitters, comprising:—a first step of coarse acquisition of said individual signals, comprising correlation of the received positioning signal with locally generated replicas of said individual signals;—a step of identifying spurious correlation peaks induced by interferences; and—a step of estimating the code delays and the carrier frequency shifts of the acquired individual signals which are not affected by said interferences. According to preferred embodiments of the invention, the method can also comprise:—a refining step of determining more accurate estimates of said code delays and carrier frequency shifts; and—a step of interference cancellation. The method of the invention is particularly suitable to indoor positioning applications.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: November 15, 2011
    Assignee: Agence Spatiale Europeenne
    Inventors: Gustavo Lopez-Risueno, Gonzalo Seco Granados
  • Navigation-Satellite Tracking Method and Receiving Station
    Publication number: 20100171653
    Abstract: The invention relates to Navigation-satellite tracking method including at least one step of determining one-way range unambiguous observations for each of a set of satellites in view, wherein standard tracking channels (32, 24) are permanently associated to each of the satellites.
    Type: Application
    Filed: October 15, 2009
    Publication date: July 8, 2010
    Applicant: EUROPEAN SPACE AGENCY
    Inventors: Francisco Amarillo Fernandez, Gustavo López-Risueño
  • Method Of Processing Positioning Signals, In Particular For Indoor Applications
    Publication number: 20100061427
    Abstract: A method of processing positioning signal constituted by a superposition of individual signals generated by a plurality of emitters, in particular satellite emitters, comprising:—a first step of coarse acquisition of said individual signals, comprising correlation of the received positioning signal with locally generated replicas of said individual signals;—a step of identifying spurious correlation peaks induced by interferences; and—a step of estimating the code delays and the carrier frequency shifts of the acquired individual signals which are not affected by said interferences. According to preferred embodiments of the invention, the method can also comprise:—a refining step of determining more accurate estimates of said code delays and carrier frequency shifts; and—a step of interference cancellation. The method of the invention is particularly suitable to indoor positioning applications.
    Type: Application
    Filed: March 3, 2006
    Publication date: March 11, 2010
    Applicant: AGENCE SPATIALE EUROPEENNE
    Inventors: Gustavo Lopez-Risueno, Gonzalo Seco Granados