Patents by Inventor Marc GRELET

Marc GRELET 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: 11099029
    Abstract: The present invention relates to a method for estimating the movement of a walking pedestrian (1), the method being characterised in that it comprises the following steps: (a) Acquisition, by inertial-measurement means (20) rigidly connected to a lower limb (10) of said pedestrian (1) and positioned in such a way as to have substantially a movement of rotation with respect to a distal end (11) of said lower limb (10) at least when said distal end (11) of the lower limb (10) is in contact with the ground, of an acceleration and of an angular speed of said lower limb (10); (b) Estimation, by data-processing means (21, 31, 41), of a speed of said lower limb (10) according to said measured acceleration and said measured angular speed.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: August 24, 2021
    Assignee: SYSNAV
    Inventors: David Vissiere, Mathieu Hillion, Eric Dorveaux, Augustin Jouy, Marc Grelet
  • Publication number: 20210169374
    Abstract: The invention describes a method for analyzing the stride of a walking pedestrian, comprising steps of: (a) Acquiring, during a recording period, measurements of a motion of a lower limb (1) of the pedestrian, (b) Determining each stride made by the pedestrian, (c) Dividing the recording period into recording sub-periods, (d) For several detected strides, estimating a characteristic quantity of the stride, (e) Selecting at least one characteristic stride quantity in a predetermined range of percentiles within a set formed by the estimated characteristic stride quantities, ordered by increasing values and occurring during a recording sub-period, (f) Repeating step (e) for several recording sub-periods. The invention also concerns equipment (10) for analyzing the stride of a walking pedestrian, and a computer program product.
    Type: Application
    Filed: June 21, 2019
    Publication date: June 10, 2021
    Inventors: David VISSIERE, Marc GRELET
  • Patent number: 10952684
    Abstract: The present invention relates to a method for estimating the physical activity exerted by an upper limb (10) of a person (1), the method being characterised in that it comprises the steps of: (a) Acquiring, by inertial measurement means (20) solidly attached to a forearm (11) of said upper limb (10) of said person (1), an angular speed of said forearm (11); (b) Estimating, by data processing means (21, 31, 41), a torque exerted by the muscles of an arm (12) of the upper limb (1) on said forearm (11) as a function of the measured angular speeds, of an orientation of said forearm (11), and of physical parameters of said forearm (11); (c) Determining, by the data processing means (21, 31, 41), a power exerted by the upper limb (10) as a function of the estimated torque and of the measured angular speed.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: March 23, 2021
    Assignees: SYSNAV, ASSOCIATION INSTITUT DE MYOLOGIE
    Inventors: Marc Grelet, Eric Dorveaux, David Vissiere, Laurent Servais, Jean-Yves Hogrel, Amelie Moraux
  • Publication number: 20190029605
    Abstract: The present invention relates to a method for estimating the physical activity exerted by an upper limb (10) of a person (1), the method being characterised in that it comprises the steps of: (a) Acquiring, by inertial measurement means (20) solidly attached to a forearm (11) of said upper limb (10) of said person (1), an angular speed of said forearm (11); (b) Estimating, by data processing means (21, 31, 41), a torque exerted by the muscles of an arm (12) of the upper limb (1) on said forearm (11) as a function of the measured angular speeds, of an orientation of said forearm (11), and of physical parameters of said forearm (11); (c) Determining, by the data processing means (21, 31, 41), a power exerted by the upper limb (10) as a function of the estimated torque and of the measured angular speed.
    Type: Application
    Filed: January 24, 2017
    Publication date: January 31, 2019
    Inventors: Marc GRELET, Eric DORVEAUX, David VISSIERE, Laurent SERVAIS, Jean-Yves HOGREL, Amelie MORAUX
  • Publication number: 20180292230
    Abstract: The present invention relates to a method for estimating the movement of a walking pedestrian (1), the method being characterised in that it comprises the following steps: (a) Acquisition, by inertial-measurement means (20) rigidly connected to a lower limb (10) of said pedestrian (1) and positioned in such a way as to have substantially a movement of rotation with respect to a distal end (11) of said lower limb (10) at least when said distal end (11) of the lower limb (10) is in contact with the ground, of an acceleration and of an angular speed of said lower limb (10); (b) Estimation, by data-processing means (21, 31, 41), of a speed of said lower limb (10) according to said measured acceleration and said measured angular speed.
    Type: Application
    Filed: October 10, 2016
    Publication date: October 11, 2018
    Inventors: David VISSIERE, Mathieu HILLION, Eric DORVEAUX, Augustin JOUY, Marc GRELET