Patents by Inventor Hedwige Polovy

Hedwige Polovy 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 low frequency noise cancellation in magneto-resistive mixed sensors
    Patent number: 8432163
    Abstract: The method for cancellation of low frequency noise in a magneto-resistive mixed sensor (1) comprising at least a superconducting loop with at least one constriction and at least one magneto-resistive element (6) comprises a set of measuring steps with at least one measuring step being conducted with the normal running of the mixed sensor and at least another measuring step being conducted whilst an additional super-current is temporarily injected in the at least one constriction of the at least one superconducting loop of the mixed sensor (1) up to a critical super-current of the constriction so that the result of the at least another measuring step is used as a reference level of the at least one magneto-resistive element (6).
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: April 30, 2013
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Claude Fermon, Hedwige Polovy, Myriam Pannetier-Lecoeur
  • Device based on a magneto-resistive mixed sensor without low frequency noise and associated method
    Patent number: 8405390
    Abstract: A device comprises a mixed sensor design with at least one superconducting loop (1) containing at least one constriction (3) and a magneto-resistive element (2) located next to the constriction (3). The device contains at least one heating element (5) that allows switching at sufficiently high frequency of at least one part of the superconducting loop (1) above its critical temperature, such that the super-current flowing through the at least one constriction (3) containing the at least one magneto-resistive element (2) is temporarily suppressed.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: March 26, 2013
    Inventors: Myriam Pannetier-Lecoeur, Hedwige Polovy, Claude Fermon
  • METHOD FOR LOW FREQUENCY NOISE CANCELLATION IN MAGNETO-RESISTIVE MIXED SENSORS
    Publication number: 20100173783
    Abstract: The method for cancellation of low frequency noise in a magneto-resistive mixed sensor (1) comprising at least a superconducting loop with at least one constriction and at least one magneto-resistive element (6) comprises a set of measuring steps with at least one measuring step being conducted with the normal running of the mixed sensor and at least another measuring step being conducted whilst an additional super-current is temporarily injected in the at least one constriction of the at least one superconducting loop of the mixed sensor (1) up to a critical super-current of the constriction so that the result of the at least another measuring step is used as a reference level of the at least one magneto-resistive element (6).
    Type: Application
    Filed: June 27, 2007
    Publication date: July 8, 2010
    Inventors: Claude Fermon, Hedwige Polovy, Myriam Pannetier-Lecoeur
  • DEVICE BASED ON A MAGNETO-RESISTIVE MIXED SENSOR WITHOUT LOW FREQUENCY NOISE AND ASSOCIATED METHOD
    Publication number: 20100164490
    Abstract: A device comprises a mixed sensor design with at least one superconducting loop (1) containing at least one constriction (3) and a magneto-resistive element (2) located next to the constriction (3). The device contains at least one heating element (5) that allows switching at sufficiently high frequency of at least one part of the superconducting loop (1) above its critical temperature, such that the super-current flowing through the at least one constriction (3) containing the at least one magneto-resistive element (2) is temporarily suppressed.
    Type: Application
    Filed: June 27, 2007
    Publication date: July 1, 2010
    Inventors: Myriam Pannetier-Lecoeur, Hedwige Polovy, Claude Fermon