Patents by Inventor Olivier Roy

Olivier Roy 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: 20220323043
    Abstract: A method of analyzing an image of a volume of tissue to determine a risk of developing breast cancer using a volume averaged sound speed within the volume. A method of determining a response to a treatment plan by determining a volume and a volume averaged sound speed of a region of interest within a volume of breast tissue and generating a combined metric from the volume and the volume averaged sound speed over the plurality of instances of time. A method of analyzing an image of a volume of tissue of a breast by applying a spatial filter to at least one ultrasound tomography image at the computing system and generating a stiffness map from the at least one ultrasound tomography image.
    Type: Application
    Filed: June 14, 2022
    Publication date: October 13, 2022
    Inventors: Nebojsa Duric, Mark Sak, Peter Littrup, Cuiping Li, Olivier Roy
  • Publication number: 20220084203
    Abstract: Described herein are systems, and methods for aiding a user to classify a volume of tissue. A system as described herein may comprise: a plurality of parameters associated with image characteristics related to one or more images of a volume of tissue; a plurality of probabilities each associated with a potential classification of a region of the volume of tissue and each related to one or more parameters of the plurality of parameters, wherein the plurality of probabilities are assumed to be independent of one another; and a graphical display visible to a user, the display comprising a graphical representation of a subset of relevant parameters of the plurality of parameters, wherein the graphical representation informs a classification of the region of the volume of tissue, and wherein a probability of the classification is represented visually.
    Type: Application
    Filed: November 29, 2021
    Publication date: March 17, 2022
    Inventors: Olivier Roy, Mark Forchette, Bruno Dacquay
  • Patent number: 11147537
    Abstract: A method and system for analyzing stiffness in a volume of tissue, the method including: emitting acoustic waveforms toward the volume of tissue with an array of ultrasound transmitters; detecting, with an array of ultrasound receivers, a set of acoustic signals derived from acoustic waveforms transmitted through the volume of tissue; generating, from the set of acoustic signals, a sound speed map and an acoustic attenuation map of a region of the volume of tissue, generating a stiffness map derived from combination of a set of sound speed parameter values of the sound speed map and a corresponding set of acoustic attenuation parameter values of the acoustic attenuation map, the stiffness map representing the distribution of the stiffness parameter across the region; and at a display in communication with the computer processor, rendering a stiffness image of the volume of tissue, based upon the stiffness map.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: October 19, 2021
    Assignee: DELPHINUS MEDICAL TECHNOLOGIES, INC.
    Inventors: Nebojsa Duric, Peter Littrup, Cuiping Li, Olivier Roy, Steven Schmidt
  • Patent number: 11071520
    Abstract: This application presents a system and related methods that analyze a volume of tissue using ultrasound waveform tomography imaging. By using frequency-domain waveform tomography techniques and a gradient descent algorithm, the system can reconstruct the sound speed distributions of a volume of tissue, such as breast tissue, of varying densities with different types of lesions. By allowing sound speed to have an imaginary component that characterizes sound attenuation, the system can classify the different types of lesions with a fine granularity.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: July 27, 2021
    Assignee: Delphinus Medical Technologies, Inc.
    Inventors: Gursharan Singh Sandhu, Nebojsa Duric, Cuiping Li, Olivier Roy, Erik West
  • Patent number: 10921293
    Abstract: A method and device are provided for determining a mode of detection of an element that reflects ultrasonic waves, wherein it comprises at least the following steps: For each point P of a given volume Zr, determining an ultrasonic field value Aijm (P) for N emitter-receiver pairs (i, j) and for one detection mode m, computing a number C m ? ( P , n ? ) = ? i , j = 1 N ? ? c ij m ? ( P , n ? ) of reflections of the wave where c ij m = { 1 if ? ? ? n ? ij m ? ( P ) · n ? ? = 1 0 if ? ? not with {right arrow over (n)}ijm(P) the normal formed by the “forward” direction {right arrow over (d)}i and the “backward” direction {right arrow over (d)}j of the ultrasonic wave emitted and reflected by the reflecting element, computing the energy value Em(P,{right arrow over (n)}) for each point P of the zone Zr, with {right arrow over (n)} and for a plurality of modes m with E m ? ( P , n ? ) = ? i , j = 1
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: February 16, 2021
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Philippe Bredif, Ekaterina Iakovleva, Dominique Lesselier, Olivier Roy, Kombossé Sy
  • Patent number: 10743837
    Abstract: A method and system for generating an enhanced image of a volume of tissue, the method comprising: emitting acoustic waveforms toward the volume of tissue; detecting a set of acoustic signals derived from acoustic waveforms interacting with the volume of tissue; generating, from the set of acoustic signals, an initial model representing a distribution of an acoustomechanical parameter across a region of the volume of tissue; extracting a set of frequency components, from the set of acoustic signals; generating a first simulated wavefield with a first frequency component of the set of frequency components; generating an updated model of the initial model with the first simulated wavefield; iteratively refining the updated model with a set of simulated wavefields associated with the set of frequency components until a threshold condition is satisfied, thereby producing a final model; and generating the enhanced image from the final model of the volume of tissue.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: August 18, 2020
    Assignee: Delphinus Medical Technologies, Inc.
    Inventors: Gursharan Singh Sandhu, Cuiping Li, Olivier Roy, Steven Schmidt, Nebojsa Duric
  • Patent number: 10548694
    Abstract: A system and method for optimising the preparation of dental restorations is provided. The system comprises a dental restoration surface processing unit, a dental restoration assessment unit, a database comprising a treatment parameters database and a processing protocols database, a processor operationally coupled to said dental restoration surface processing unit and a protocol selector. The method treats a dental restoration surface using the system and according to one or more selected processing protocol.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: February 4, 2020
    Assignee: DENTAL WINGS INC.
    Inventors: Michael Landry Rynerson, Pierre-Olivier Roy, Jean-Marc Perot, Robin Provost
  • Publication number: 20190117194
    Abstract: A method and system for analyzing stiffness in a volume of tissue, the method including: emitting acoustic waveforms toward the volume of tissue with an array of ultrasound transmitters; detecting, with an array of ultrasound receivers, a set of acoustic signals derived from acoustic waveforms transmitted through the volume of tissue; generating, from the set of acoustic signals, a sound speed map and an acoustic attenuation map of a region of the volume of tissue, generating a stiffness map derived from combination of a set of sound speed parameter values of the sound speed map and a corresponding set of acoustic attenuation parameter values of the acoustic attenuation map, the stiffness map representing the distribution of the stiffness parameter across the region; and at a display in communication with the computer processor, rendering a stiffness image of the volume of tissue, based upon the stiffness map.
    Type: Application
    Filed: November 7, 2018
    Publication date: April 25, 2019
    Inventors: Nebojsa Duric, Peter Littrup, Cuiping Li, Olivier Roy, Steven Schmidt
  • Patent number: 10143443
    Abstract: A method and system for analyzing stiffness in a volume of tissue, the method including: emitting acoustic waveforms toward the volume of tissue with an array of ultrasound transmitters; detecting, with an array of ultrasound receivers, a set of acoustic signals derived from acoustic waveforms transmitted through the volume of tissue; generating, from the set of acoustic signals, a sound speed map and an acoustic attenuation map of a region of the volume of tissue, generating a stiffness map derived from combination of a set of sound speed parameter values of the sound speed map and a corresponding set of acoustic attenuation parameter values of the acoustic attenuation map, the stiffness map representing the distribution of the stiffness parameter across the region; and at a display in communication with the computer processor, rendering a stiffness image of the volume of tissue, based upon the stiffness map.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: December 4, 2018
    Assignee: Delphinus Medical Technologies, Inc.
    Inventors: Nebojsa Duric, Peter Littrup, Cuiping Li, Olivier Roy, Steven Schmidt
  • Publication number: 20180185005
    Abstract: This application presents a system and related methods that analyze a volume of tissue using ultrasound waveform tomography imaging. By using frequency-domain waveform tomography techniques and a gradient descent algorithm, the system can reconstruct the sound speed distributions of a volume of tissue, such as breast tissue, of varying densities with different types of lesions. By allowing sound speed to have an imaginary component that characterizes sound attenuation, the system can classify the different types of lesions with a fine granularity.
    Type: Application
    Filed: March 1, 2018
    Publication date: July 5, 2018
    Applicant: Delphinus Medical Technologies, Inc.
    Inventors: Gursharan Singh Sandhu, Nebojsa Duric, Cuiping Li, Olivier Roy, Erik West
  • Patent number: 9763641
    Abstract: A method and system for imaging a volume of tissue and defining a tissue boundary comprising: receiving a baseline dataset representative of a first set of signals interacting with a medium; receiving a reconstruction dataset representative of a second set of signals interacting with the medium and the volume of tissue present in the medium; determining a set of direct emitter-receiver pairs, each defining a direct trajectory that does not pass through the volume of tissue; from the set of direct emitter-receiver pairs, determining a set of tangential emitter-receiver pairs, each defining a bounding vector comprising a tangent point along the tissue boundary; determining a set of interior pixels, of the reconstruction dataset, characterized by a set of pixel locations within the tissue boundary; and reconstructing pixels of the set of interior pixels, thereby transforming the baseline and the reconstruction datasets into an image rendering of the volume of tissue.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: September 19, 2017
    Assignee: Delphinus Medical Technologies, Inc.
    Inventors: Erik West, Olivier Roy, Steven Schmidt
  • Patent number: 9358137
    Abstract: The actuated leg prosthesis comprises a knee member, a socket connector provided over the knee member, an elongated trans-tibial member having a bottom end under which is connected an artificial foot, and a linear actuator. A first pivot assembly allows to operatively connect the trans-tibial member to the knee member. A second pivot assembly allows to operatively connect an upper end of the actuator to the knee member. A third pivot assembly allows to operatively connect a bottom end of the actuator to the bottom end of the trans-tibial member. The prosthesis can be provided as either a front actuator configuration or a rear actuator configuration.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: June 7, 2016
    Assignee: Victhom Laboratory Inc.
    Inventors: Stephane Bedard, Pierre-Olivier Roy
  • Publication number: 20160030000
    Abstract: A method and system for generating an enhanced image of a volume of tissue, the method comprising: emitting acoustic waveforms toward the volume of tissue; detecting a set of acoustic signals derived from acoustic waveforms interacting with the volume of tissue; generating, from the set of acoustic signals, an initial model representing a distribution of an acoustomechanical parameter across a region of the volume of tissue; extracting a set of frequency components, from the set of acoustic signals; generating a first simulated wavefield with a first frequency component of the set of frequency components; generating an updated model of the initial model with the first simulated wavefield; iteratively refining the updated model with a set of simulated wavefields associated with the set of frequency components until a threshold condition is satisfied, thereby producing a final model; and generating the enhanced image from the final model of the volume of tissue.
    Type: Application
    Filed: August 4, 2015
    Publication date: February 4, 2016
    Inventors: Gursharan Singh Sandhu, Cuiping Li, Olivier Roy, Steven Schmidt, Nebojsa Duric
  • Publication number: 20150313577
    Abstract: A method and system for analyzing stiffness in a volume of tissue, the method including: emitting acoustic waveforms toward the volume of tissue with an array of ultrasound transmitters; detecting, with an array of ultrasound receivers, a set of acoustic signals derived from acoustic waveforms transmitted through the volume of tissue; generating, from the set of acoustic signals, a sound speed map and an acoustic attenuation map of a region of the volume of tissue, generating a stiffness map derived from combination of a set of sound speed parameter values of the sound speed map and a corresponding set of acoustic attenuation parameter values of the acoustic attenuation map, the stiffness map representing the distribution of the stiffness parameter across the region; and at a display in communication with the computer processor, rendering a stiffness image of the volume of tissue, based upon the stiffness map.
    Type: Application
    Filed: May 4, 2015
    Publication date: November 5, 2015
    Inventors: Nebojsa Duric, Peter Littrup, Cuiping Li, Olivier Roy, Steven Schmidt
  • Patent number: 8986397
    Abstract: The present invention discloses an instrumented prosthetic foot for use with an actuated leg prosthesis controlled by a controller, the instrumented prosthetic foot comprising a connector to connect the instrumented prosthetic foot to the leg prosthesis, an ankle structure connected to the connector, a ground engaging member connected to the ankle, at least one sensor for detecting changes in weight distribution along the foot, and an interface for transmitting signals from the sensor to the controller.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: March 24, 2015
    Assignee: Victhom Human Bionics, Inc.
    Inventors: Stephane Bedard, Pierre-Olivier Roy
  • Patent number: 8787501
    Abstract: Certain aspects of the present disclosure provide methods for distributed sensing and centralized reconstruction of two correlated signals, modeled as the input and output of an unknown sparse filtering operation.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: July 22, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Martin Vetterli, Ali Hormati, Olivier Roy, Yue M. Lu
  • Publication number: 20140141405
    Abstract: The invention relates to a method for cultivating microorganisms, particularly of the type that comprises the step of seeding a culture medium with one or more microorganism strains, and the step of cultivating the medium thus seeded, characterized in that it comprises, during the entirety or a portion of the cultivation, the two following and simultaneous adjustments: adjusting the amount of oxygen dissolved in the medium to a given dissolved-oxygen setpoint; adjusting the value of the redox potential Eh of the medium to a given setpoint value Eh.
    Type: Application
    Filed: January 27, 2014
    Publication date: May 22, 2014
    Applicant: L'Air Liquide, Societe Anonyme pour I'Etude et Exploitation des Procedes Georges Claude
    Inventors: Armelle Marecat, Dominique Ibarra, Isabelle Auzanneau, Jean-Roch Mouret, Jean-Philippe Obert, Loic Damongeot, Olivier Roy
  • Publication number: 20140066772
    Abstract: A method and system for imaging a volume of tissue and defining a tissue boundary comprising: receiving a baseline dataset representative of a first set of signals interacting with a medium; receiving a reconstruction dataset representative of a second set of signals interacting with the medium and the volume of tissue present in the medium; determining a set of direct emitter-receiver pairs, each defining a direct trajectory that does not pass through the volume of tissue; from the set of direct emitter-receiver pairs, determining a set of tangential emitter-receiver pairs, each defining a bounding vector comprising a tangent point along the tissue boundary; determining a set of interior pixels, of the reconstruction dataset, characterized by a set of pixel locations within the tissue boundary; and reconstructing pixels of the set of interior pixels, thereby transforming the baseline and the reconstruction datasets into an image rendering of the volume of tissue.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 6, 2014
    Applicant: Delphinus Medical Trechnologies, Inc.
    Inventors: Erik West, Olivier Roy, Steven Schmidt
  • Patent number: 8663113
    Abstract: A method for imaging a volume of tissue in a scan region, including: emitting, from transmitting transducers, acoustic waveforms toward the volume of tissue; detecting, with detecting transducers, a plurality acoustic signals derived from acoustic waveforms interacting with the volume of tissue; generating from the detected acoustic signals a plurality of variable attenuation maps, in which each variable attenuation map corresponds to acoustic signals detected by a respective detecting transducer and includes a plurality of variable attenuation coefficients mapped to the scan region; modifying at least a portion of the detected acoustic signals based on one or more variable attenuation maps; and generating a reflection rendering of the volume of tissue based on the modified acoustic signals.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: March 4, 2014
    Assignee: Delphinus Medical Technologies, Inc.
    Inventors: Steven P Schmidt, Cuiping Li, Olivier Roy, Ivana Jovanovic
  • Patent number: D850356
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: June 4, 2019
    Assignee: PELICAN INTERNATIONAL INC.
    Inventors: Jacques-Olivier Roy, Vanessa Forget, Ivan Brousseau, Julie Bédard, Amélie Brisson Laperle