François-Xavier
François-Xavier Boillot, Grenoble FR
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20120267730 | MICRO-ELECTROMECHANICAL SYSTEM (MEMS) DEVICE - A micro-electromechanical system (MEMS) device for measuring accelerations, angular rates, or for actuation comprises at least two substrates and at least one movable structure arranged in a cavity between the substrates. An electrically conducting frame surrounding the movable structure is arranged at an interface of the two substrates. The frame is electrically separated from the movable structure and connected by at least first and second electrically conducting connections to the first and second substrates, respectively. The frame may have a width of not more than 150 preferably not more than 50 μm. The first connection is at an interface between the frame and the first substrate. The second connection is a layer applied at an outer periphery of the frame and a peripheral face of the second substrate. The structure keeps electrical fields and electromagnetic disturbances away from the sensor and may also be used for shielding micro-electronic circuits. | 10-25-2012 |
François-Xavier Doittau, Behoust/orgerus FR
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20100265601 | IMAGING MIRROR, METHOD FOR MAKING SAME AND USE THEREOF IN A LASER IMAGING SYSTEM - A mirror for optical imaging includes a reflecting device having a reflective face. The reflecting device incorporates a light-emitting device of which one emitting end is situated in said reflective face in a zone which is not or not very reflective. | 10-21-2010 |
20100272320 | Laser Pointing System - A system for pointing a laser beam is provided. The system comprises at least one processing laser source for emitting a processing laser beam toward a target, said processing beam being transmitted through a non-reflective zone of a first mirror, said mirror allowing return to an imaging system receiving an illumination beam reflected by the target, said low reflection coefficient zone of the first mirror inducing a shadow zone toward the imaging system; a second mirror receiving said processing beam and intended to orient it and reflect it toward the target; an illumination source for illuminating said target with the aid of the illumination beam, a first control circuit for controlling the orientation of said pointing system toward the target, a second control circuit for angularly displacing the processing beam by a determined angle, measuring the distance separating the position of a zone of the target from the position of the spot of the processing beam on the basis of an image obtained by the imaging system, then displacing the illumination beam in the opposite sense by an angle corresponding to said measured distance, the angular displacement of the processing beam having an amplitude such that the measurement of the position of the target is not perturbed by the shadow zone. | 10-28-2010 |
20110235658 | High-Power Laser Fibre System - The invention relates a power fiber laser system including at least one single-mode fiber laser, emitting at a signal wavelength, the fiber including at least one outer cladding and a core, in which the core of the fiber has a radially graded index. The fiber includes, at least over a part of its length, a geometrical section having a graded fiber-core radius that decreases between an input end of the section and an output end of the section, the core radius and the index variation between the cladding and the fiber at the input end being such that the normalized frequency at the signal wavelength is less than the normalized cutoff frequency at which the fiber becomes unimodal. | 09-29-2011 |
François-Xavier Doittau, Behoust/orgerus FR
Patent application number | Description | Published |
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20100265601 | IMAGING MIRROR, METHOD FOR MAKING SAME AND USE THEREOF IN A LASER IMAGING SYSTEM - A mirror for optical imaging includes a reflecting device having a reflective face. The reflecting device incorporates a light-emitting device of which one emitting end is situated in said reflective face in a zone which is not or not very reflective. | 10-21-2010 |
20100272320 | Laser Pointing System - A system for pointing a laser beam is provided. The system comprises at least one processing laser source for emitting a processing laser beam toward a target, said processing beam being transmitted through a non-reflective zone of a first mirror, said mirror allowing return to an imaging system receiving an illumination beam reflected by the target, said low reflection coefficient zone of the first mirror inducing a shadow zone toward the imaging system; a second mirror receiving said processing beam and intended to orient it and reflect it toward the target; an illumination source for illuminating said target with the aid of the illumination beam, a first control circuit for controlling the orientation of said pointing system toward the target, a second control circuit for angularly displacing the processing beam by a determined angle, measuring the distance separating the position of a zone of the target from the position of the spot of the processing beam on the basis of an image obtained by the imaging system, then displacing the illumination beam in the opposite sense by an angle corresponding to said measured distance, the angular displacement of the processing beam having an amplitude such that the measurement of the position of the target is not perturbed by the shadow zone. | 10-28-2010 |
François-Xavier Ollivier, Lannion FR
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20100046551 | TRANSMISSION OF A TRIBUTARY IN SYNCHRONOUS MODE AT THE LEVEL OF A LINK OF A DATA NETWORK - The invention relates to a method of transmitting at least one tributary in synchronous mode at the level of a link of a data network, said tributary comprising at least one frame in the SDH or SONET format, said frame comprising at least one payload envelope area and one transport overhead area, said payload envelope area comprising at least one payload and load supervision data related to the payload, said transport overhead area comprising at least transport supervision data related to transport and an area of fixed patterns comprising fixed patterns, said method comprising steps of:—modifying said frame so as to generate a modified frame; transmitting said modified frame, the modification comprising steps in which:—part of said fixed patterns are deleted from said fixed pattern area; the positions of said part of the fixed patterns deleted are recorded; replacement data are inserted at the level of said positions, the method being characterized in that said replacement data comprise the transport supervision data of the frame of said tributary. | 02-25-2010 |
François-Xavier Querry, Tarcenay FR
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20120137866 | STANDOFF PROTECTION DEVICE INTENDED TO FULLY COVER A DOOR - A standoff protection device intended to fully cover a door and incorporating an opening panel giving access to the door, said opening panel and door each comprising hinge means whose axes of rotation are parallel to one another, wherein said opening panel is wider than said door and is positioned facing said door such that said opening panel completely covers said door, said axis of rotation of said door namely facing said opening panel, said opening panel further incorporating at least one slide perpendicular to said axis of rotation of said opening panel, said slide being connected to said door by rigid hooking means integral with said door. | 06-07-2012 |
François-Xavier Russotto, Meudon FR
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20130218336 | Method and System for Assisting in the Handling of Robotized Machines in a Congested Environment - A method for handling of a first robotized mobile machine moving in a congested working environment under the control of a second robotized mobile machine, providing the operator, in real time, with a relevant view of the working scene, even if an object intrudes into the field of view of the camera and thereby obscures the operator's view. This method is based on use of properties of a physics engine of the constraint resolution type. For each object in the scene, the physics engine has a physical representation of said object in the form of a mesh. The engine calculates a wrench on the basis of the respective positions and velocities of two objects. In case of a collision between the manipulator and a fixed object in the scene, the engine determines the wrench to be applied to the manipulator in order to make it avoid the object. | 08-22-2013 |