Patents by Inventor Bernard Espiau

Bernard Espiau 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).

  • Process for estimating the motion phase of an object
    Patent number: 7249001
    Abstract: The process comprises acquisition of experimental data from measurements of physical quantities by means of at least one sensor associated to the object. The process comprises a first reliable estimation of a first range of values with a first method. The process comprises at least one additional estimation of an additional range of values with a different method. The methods each present a predetermined reliability. The ranges of values are successively observed in order of decreasing reliability of the corresponding methods. Each additional range of values is compared with the range of values corresponding to the previous method according to said order. The additional range is chosen as result when the additional range is comprised in the range corresponding to one of the previous methods.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: July 24, 2007
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Rodolphe Heliot, Dominique David, Bernard Espiau, Roger Pissard-Gibollet
  • Process for estimating the motion phase of an object
    Publication number: 20060268986
    Abstract: Process for estimating the motion phase of an object The process comprises acquisition of experimental data from measurements of physical quantities by means of at least one sensor associated to the object. The process comprises a first reliable estimation of a first range of values with a first method. The process comprises at least one additional estimation of an additional range of values with a different method. The methods each present a predetermined reliability. The ranges of values are successively observed in order of decreasing reliability of the corresponding methods. Each additional range of values is compared with the range of values corresponding to the previous method according to said order. The additional range is chosen as result when the additional range is comprised in the range corresponding to one of the previous methods.
    Type: Application
    Filed: May 3, 2006
    Publication date: November 30, 2006
    Applicant: COMMISSARIAT a l'ENERGIE ATOMIQUE
    Inventors: Rodolphe Heliot, Dominique David, Bernard Espiau, Roger Pissard-Gibollet
  • Process for the control of active moving body relative to a local passive environment with the aid of local proximetric transducers
    Patent number: 4747458
    Abstract: The object of the present invention is to greatly simplify the final control of a sensitive, active robot moving in a passive environment. It consists of equipping the robot with a plurality of directional proximetric transducers C.sub.i, to which are allocated, for a given operating mode, virtual elementary actions making it possible to determine a control vector of the different actuators (4.1-4.2) responsible for the robot movements. The virtual elementary action allocated to each sensor is weighted by a virtual mass or coefficient m.sub.i. The center of gravity of the virtual masses m.sub.i preferably coincides with the control frame of the robot. The invention is more particularly usable in robotized remote manipulation.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: May 31, 1988
    Assignees: Commissariat a l'Energie Atomique, Inria
    Inventors: Guy Andre, Bernard Espiau