Patents by Inventor Claire Prada Julia

Claire Prada Julia 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: 12038410
    Abstract: This two-dimensional Fourier transform ultrasound imaging method includes by controlling transmitting and receiving transducers: obtaining M matrices MRm, 1?m?M, of sampled ultrasonic time signals; two-dimensional Fourier transforming each matrix MRm to obtain M spectral matrices FTMRm; converting each spectral matrix FTMRm to obtain M spectral images FTIm; combining the M spectral images FTIm and two-dimensional inverse Fourier transforming the resulting spectral image FTI to obtain an ultrasound image I. The conversion includes taking into account a change of propagation mode during a backscatter, by adding a parameter characterizing this change of mode in equations (SYS) of change of reference frame, and/or taking into account a reflection against a wall, by adding a phase shift term in a relation (REL) of matrix transformation.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: July 16, 2024
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Lucas Merabet, Sébastien Robert, Claire Prada Julia
  • Publication number: 20220082526
    Abstract: This two-dimensional Fourier transform ultrasound imaging method includes by controlling transmitting and receiving transducers: obtaining M matrices MRm, 1?m?M, of sampled ultrasonic time signals; two-dimensional Fourier transforming each matrix MRm to obtain M spectral matrices FTMRm; converting each spectral matrix FTMRm to obtain M spectral images FTIm; combining the M spectral images FTIm and two-dimensional inverse Fourier transforming the resulting spectral image FTI to obtain an ultrasound image I. The conversion includes taking into account a change of propagation mode during a backscatter, by adding a parameter characterizing this change of mode in equations (SYS) of change of reference frame, and/or taking into account a reflection against a wall, by adding a phase shift term in a relation (REL) of matrix transformation.
    Type: Application
    Filed: December 19, 2019
    Publication date: March 17, 2022
    Inventors: Lucas MERABET, Sébastien ROBERT, Claire PRADA JULIA
  • Patent number: 11054401
    Abstract: A method for processing ultrasound signals including controlling emission transducers for M successive emissions of plane ultrasound waves having M different angles of emission, controlling N reception transducers in order to simultaneously receive N measurement time signals per emission, and obtaining a matrix [MR(t)] of ultrasound time signals, each coefficient MRi,j(t) of this matrix representing the measurement signal received by the i-th reception transducer caused by the j-th emission. It further includes performing singular-value decomposition of a matrix [FTMR(f)] of frequency signals obtained by transforming the matrix [MR(t)], and eliminating a portion of the singular values and reconstructing a denoised matrix [MRU(t)] of time signals on the basis of the singular values not eliminated.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: July 6, 2021
    Assignees: Commissariat a l'energie atomique et aux energies alternatives, Centre National de la Recherche Scientifique
    Inventors: Eduardo-Rigoberto Lopez Villaverde, Sebastien Robert, Claire Prada Julia
  • Publication number: 20200080969
    Abstract: A method for acquiring signals via ultrasound probing including: controlling L emission transducers and N reception transducers in order to simultaneously receive, for each of M successive emissions, N measurement signals; obtaining a matrix of ultrasound time signals having a size of N×M. An initial matrix ([MC?]), having a size of L×M', for encoding the successive emissions is previously defined for a number M? of successive initial emissions strictly greater than M. A calculation of acoustic field is carried out for each of the M? initial emissions. A reduced encoding matrix ([MC]), having a size of L×M, is obtained by removal of M??M columns of the initial encoding matrix ([MC?]) on the basis of a selection criterion applied to the M? calculations of acoustic fields. Finally, the control of the L emission transducers for the M successive emissions is encoded using the reduced encoding matrix ([MC]).
    Type: Application
    Filed: December 5, 2017
    Publication date: March 12, 2020
    Applicants: Commissariat a I'energie atomique et aux energies alternatives, Centre National de la Recherche Scientifique
    Inventors: Eduardo-Rigoberto LOPEZ VILLAVERDE, Sebastian ROBERT, Claire PRADA JULIA
  • Publication number: 20190317054
    Abstract: A method for processing ultrasound signals including controlling emission transducers for M successive emissions of plane ultrasound waves having M different angles of emission, controlling N reception transducers in order to simultaneously receive N measurement time signals per emission, and obtaining a matrix [MR(t)] of ultrasound time signals, each coefficient MRi,j(t) of this matrix representing the measurement signal received by the i-th reception transducer caused by the j-th emission. It further includes performing singular-value decomposition of a matrix [FTMR(f)] of frequency signals obtained by transforming the matrix [MR(t)], and eliminating a portion of the singular values and reconstructing a denoised matrix [MRU(t)] of time signals on the basis of the singular values not eliminated.
    Type: Application
    Filed: December 5, 2017
    Publication date: October 17, 2019
    Applicants: Commissariat a l'energie atomique et aux energies alternatives, Centre National de la Recherche Scientifique
    Inventors: Eduardo-Rigoberto LOPEZ VILLAVERDE, Sebastien ROBERT, Claire PRADA JULIA
  • Patent number: 9903842
    Abstract: A method for processing ultrasonic signals includes: controlling a plurality of emission transducers for L successive emissions of ultrasonic waves; controlling N reception transducers to simultaneously receive and for a predetermined time, for each successive emission, N measurement signals; obtaining an array of ultrasonic time signals of size L×N, each coefficient Ki,j(t) of this array representing the measurement signal received by the j-th reception transducer due to the i-th emission; and denoising the time signal array by removing some of the singular values and associated singular vectors obtained from a singular value decomposition of a frequency signal array obtained by transforming this time signal array, and by reconstructing a denoised time signal array based on unremoved singular values and singular vectors.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: February 27, 2018
    Assignee: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Souad Bannouf, Olivier Casula, Claire Prada Julia, Sebastien Robert
  • Publication number: 20150212051
    Abstract: A method for processing ultrasonic signals includes: controlling a plurality of emission transducers for L successive emissions of ultrasonic waves; controlling N reception transducers to simultaneously receive and for a predetermined time, for each successive emission, N measurement signals; obtaining an array of ultrasonic time signals of size L×N, each coefficient Ki,j(t) of this array representing the measurement signal received by the j-th reception transducer due to the i-th emission; and denoising the time signal array by removing some of the singular values and associated singular vectors obtained from a singular value decomposition of a frequency signal array obtained by transforming this time signal array, and by reconstructing a denoised time signal array based on unremoved singular values and singular vectors.
    Type: Application
    Filed: July 12, 2013
    Publication date: July 30, 2015
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALT
    Inventors: Souad Bannouf, Olivier Casula, Claire Prada Julia, Sebastien Robert