Patents by Inventor Stephane David
Stephane David 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).
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Publication number: 20240125883Abstract: The invention relates to a system (1) for positioning at least one mobile receiver (2), comprising at least two stationary transmitter bases (4, 4A, 4B). Each transmitter base 5 (4, 4A, 4B) is configured to transmit radio frequency signals (S1A, S1B, sdA, sdB, srA, srB) and to transmit a sum (S1A, S1B) of at least two unmodulated pure carrier signals of different frequencies; and the mobile receiver (2) further comprises: means for measuring phases of the signals; and computing means configured to: apply a Fourier transform to a signal consisting of the various measured phases of the radio frequency 10 signals; determine a time-of-flight between the mobile receiver (2) and each base (4A, 4B); calculate at least one time-of-flight difference between the mobile (2) and two transmitter bases (4A, 4B); determine the position of the mobile receiver (2) from the calculated time-of-flight difference(s).Type: ApplicationFiled: April 13, 2022Publication date: April 18, 2024Inventors: Antoine CARRABIN, Pierre-Arnaud COQUELIN, Stéphane DAVID-GRIGNOT
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Publication number: 20240120148Abstract: There is provided a phase shifting device and method of manufacturing the same. The device comprises an auto-transformer comprising a primary winding configured to receive an input signal; and two secondary windings, wherein a first one of the two secondary windings is in phase with the primary winding and a second one of the two secondary windings is out of phase with the primary winding. The device also comprises a first switch coupled to an output signal of the first one of the two secondary windings of the auto-transformer; and a second switch coupled to an output signal of the second one of the two secondary windings of the auto-transformer. Output signals of the first and second switches are couplable to an output of the phase shifting device.Type: ApplicationFiled: September 28, 2023Publication date: April 11, 2024Inventors: Vinicius Azevedo de Souza e Vecchia, Stephane David, Olivier Tesson
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Patent number: 11885545Abstract: A dynamic receiver is included in parallel to an expander of a heating, ventilation, air conditioning, and refrigeration (HVACR) system. The dynamic receiver allows control of the refrigerant charge of the HVACR system to respond to different operating conditions. The dynamic receiver can be filled or emptied in response to the subcooling observed in the HVACR system compared to desired subcooling for various operating modes. The HVACR system can include a line directly conveying working fluid from compressor discharge to the dynamic receiver to allow emptying of the dynamic receiver to be assisted by injection of the compressor discharge.Type: GrantFiled: August 8, 2022Date of Patent: January 30, 2024Assignee: TRANE INTERNATIONAL INC.Inventors: Philippe Del Marcel Tisserand, Stephane David Koenigsecker, Yves Jacques Raimbault
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Publication number: 20230042257Abstract: A device for capacitive detection of an object (O), including at least one biasing module configured to bias at least one measurement electrode at an alternating electric potential (Vg), referred to as work potential, different from a ground potential (M); and measurement electronics; at least one biasing module including at least one toroidal element, referred to as excitation element, with a central opening designed to induce, in at least one electrical conductor which passes therethrough and which is in electrical connection with at least one measurement electrode, an alternating potential difference equal to the alternating electrical work potential (Vg), between an input and an output of the at least one toroidal element. An apparatus using such a capacitive detection device is also included.Type: ApplicationFiled: December 29, 2020Publication date: February 9, 2023Inventors: Christian NEEL, Didier ROZIERE, Stéphane DAVID-GRIGNOT
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Publication number: 20220381495Abstract: A dynamic receiver is included in parallel to an expander of a heating, ventilation, air conditioning, and refrigeration (HVACR) system. The dynamic receiver allows control of the refrigerant charge of the HVACR system to respond to different operating conditions. The dynamic receiver can be filled or emptied in response to the subcooling observed in the HVACR system compared to desired subcooling for various operating modes. The HVACR system can include a line directly conveying working fluid from compressor discharge to the dynamic receiver to allow emptying of the dynamic receiver to be assisted by injection of the compressor discharge.Type: ApplicationFiled: August 8, 2022Publication date: December 1, 2022Inventors: Philippe Del Marcel Tisserand, Stephane David Koenigsecker, Yves Jacques Raimbault
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Publication number: 20220290905Abstract: A dynamic receiver is included in parallel to an expander of a heating, ventilation, air conditioning, and refrigeration (HVACR) system. The dynamic receiver allows control of the refrigerant charge of the HVACR system to respond to different operating conditions. The dynamic receiver can be filled or emptied in response to the subcooling observed in the HVACR system compared to desired subcooling for various operating modes. The flow through an expander of the HVACR system can be controlled to account for the mass flow rate through an outlet valve of the dynamic receiver when the dynamic receiver is emptied, preventing or reducing instability or effects on system parameters such as the suction superheat.Type: ApplicationFiled: May 27, 2022Publication date: September 15, 2022Inventors: Yves Jacques Raimbault, Philippe Del Marcel Tisserand, Gabriel Mateos, Stephane David Koenigsecker
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Patent number: 11408657Abstract: A dynamic receiver is included in parallel to an expander of a heating, ventilation, air conditioning, and refrigeration (HVACR) system. The dynamic receiver allows control of the refrigerant charge of the HVACR system to respond to different operating conditions. The dynamic receiver can be filled or emptied in response to the subcooling observed in the HVACR system compared to desired subcooling for various operating modes. The HVACR system can include a line directly conveying working fluid from compressor discharge to the dynamic receiver to allow emptying of the dynamic receiver to be assisted by injection of the compressor discharge.Type: GrantFiled: June 29, 2021Date of Patent: August 9, 2022Assignee: TRANE INTERNATIONAL INC.Inventors: Philippe Del Marcel Tisserand, Stephane David Koenigsecker, Yves Jacques Raimbault
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Publication number: 20210404719Abstract: A dynamic receiver is included in parallel to an expander of a heating, ventilation, air conditioning, and refrigeration (HVACR) system. The dynamic receiver allows control of the refrigerant charge of the HVACR system to respond to different operating conditions. The dynamic receiver can be filled or emptied in response to the subcooling observed in the HVACR system compared to desired subcooling for various operating modes. The HVACR system can include a line directly conveying working fluid from compressor discharge to the dynamic receiver to allow emptying of the dynamic receiver to be assisted by injection of the compressor discharge.Type: ApplicationFiled: June 29, 2021Publication date: December 30, 2021Inventors: Philippe Del Marcel Tisserand, Stephane David Koenigsecker, Yves Jacques Raimbault
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Patent number: 11204146Abstract: A lighting device for a vehicle, the lighting device having a translucent element defining an external surface and an internal surface, a mask defining an external surface and an internal surface, the mask defining a plurality of through openings, and a light source comprising at least one electronic circuit comprising a plurality of light-emitting diodes. The external surface of the mask is fixed to the internal surface of the translucent element, the light-emitting diodes of the light source being disposed opposite the internal surface of the mask.Type: GrantFiled: December 17, 2020Date of Patent: December 21, 2021Assignee: Flex-N-Gate FranceInventors: Stéphane David Demontoux, David Pierre Gilles Duquesnoy, Thierry Receveur
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Publication number: 20210190285Abstract: A lighting device for a vehicle, the lighting device having a translucent element defining an external surface and an internal surface, a mask defining an external surface and an internal surface, the mask defining a plurality of through openings, and a light source comprising at least one electronic circuit comprising a plurality of light-emitting diodes. The external surface of the mask is fixed to the internal surface of the translucent element, the light-emitting diodes of the light source being disposed opposite the internal surface of the mask.Type: ApplicationFiled: December 17, 2020Publication date: June 24, 2021Applicant: Flex-N-Gate FranceInventors: Stéphane David DEMONTOUX, David Pierre Gilles DUQUESNOY, Thierry RECEVEUR
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Publication number: 20190212587Abstract: A Pockels cell that includes two similar electro-optical crystals oriented to achieve temperature compensation on a horizontal metal base common to the two crystals, and a carrier structure. It includes, between the base and the carrier structure, a thermally conductive element, which has a configuration that is symmetric about a vertical plane passing between the two crystals, in order to symmetrically distribute, to the base, a heat flux generated in the carrier structure asymmetrically with respect to the vertical plane.Type: ApplicationFiled: September 14, 2017Publication date: July 11, 2019Inventors: Eric DURAND, Christophe DERYCKE, Laurent BOUDJEMAA, Stephane DAVID
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Patent number: 9800153Abstract: In an embodiment there is: negative voltage generator configured to generate an output having a negative voltage from an input having a positive voltage comprising an input node configured to receive an alternating signal, an output node for outputting an output voltage of the generator and a ground node, a switching element configured to provide a conductive and non-conductive flow path between a first terminal and a second terminal in response to a control signal; a control element adapted to control the flow of current therethrough between a first terminal and a second terminal.Type: GrantFiled: July 16, 2015Date of Patent: October 24, 2017Assignee: NXP B.V.Inventor: Stephane David
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Patent number: 9507358Abstract: An amplifier arrangement for amplifying an alternating signal, comprising an amplifier and an adaptive biasing circuit, the amplifier configured to receive an alternating signal for amplification and a bias signal for biasing the amplifier from the adaptive biasing circuit, the adaptive biasing circuit comprising a PTAT circuit wherein the PTAT circuit is configured to receive the alternating signal and modulate the bias signal based on the alternating signal.Type: GrantFiled: March 19, 2015Date of Patent: November 29, 2016Assignee: NXP B.V.Inventors: Stephane David, Fabian Riviere
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Publication number: 20160036329Abstract: In an embodiment there is: A negative voltage generator configured to generate an output having a negative voltage from an input having a positive voltage comprising an input node configured to receive an alternating signal, an output node for outputting an output voltage of the generator and a ground node, a switching element configured to provide a conductive and non-conductive flow path between a first terminal and a second terminal in response to a control signal; a control element adapted to control the flow of current therethrough between a first terminal and a second terminal.Type: ApplicationFiled: July 16, 2015Publication date: February 4, 2016Inventor: Stephane David
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Publication number: 20150268680Abstract: An amplifier arrangement for amplifying an alternating signal, comprising an amplifier and an adaptive biasing circuit, the amplifier configured to receive an alternating signal for amplification and a bias signal for biasing the amplifier from the adaptive biasing circuit, the adaptive biasing circuit comprising a PTAT circuit wherein the PTAT circuit is configured to receive the alternating signal and modulate the bias signal based on the alternating signal.Type: ApplicationFiled: March 19, 2015Publication date: September 24, 2015Inventors: Stephane David, Fabian Riviere
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Patent number: 8888156Abstract: A handling device includes at least a guiding member having a notch associated with two side trunnions and designed to receive a trunnion, the handling device also including a gripping member the guiding member and the gripping member cooperating in such a manner that, when the gripping member is in an open position, each trunnion can be inserted into or extracted from the notch, and when the gripping member is in a closed position, each trunnion can only move a limited distance in the notch, between a “low” position and a “high” position, an actuating system associated with the gripping member, able to move it between the open and closed positions, and a locking system that is able to block said gripping member when a locked position, and able to move from the locked position to an unlocked position when the are in the high position.Type: GrantFiled: September 6, 2011Date of Patent: November 18, 2014Assignee: E.C.L.Inventor: Stéphane David
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Publication number: 20140231268Abstract: A pot tending module for an aluminum production plant comprising a frame and a rotary part including a hopper mounted on said frame so as to pivot about a substantially vertical axis, said rotary part being equipped with at least one tool mounted on a telescopic arm, said pot tending module comprising a first bearing structure to carry all of said rotary part mounted on said frame so as to be pivotable about a substantially vertical axis, a fixed member of said telescopic arm being mounted on a second bearing structure of said rotary art through attachment means fixed to an attachment part of said fixed member placed between the ends of said fixed member. A pot tending machine, a port tending assembly comprising the pot tending module described above, and use of said pot tending assembly.Type: ApplicationFiled: September 24, 2012Publication date: August 21, 2014Inventor: Stéphane David
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Patent number: 8756837Abstract: Fastening device designed to fasten a collecting container including: at least one pivot-member assembled so as to swivel around an axis on a mobile arm and including at least one first transverse arm provided with a first fixing structure and at least one second transverse arm provided with axial bores, at least two fasteners fixed onto the collecting container, the first fastener being provided with a second fixing structure working in conjunction with the first fixing structure, the second fastener, provided with axial bores, and a pin, designed to be inserted and to slide inside the axial bores when they are aligned. There exists at least one bore of a group, called the “central bore”, which is conical and which is surrounded by two bores of the other group, called “peripheral bores” which are cylindrical. The pin has a conical shoulder complementary to the central bore.Type: GrantFiled: December 8, 2009Date of Patent: June 24, 2014Assignee: E.C.L.Inventors: Arnaud Wattel, Stéphane David
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Patent number: 8647481Abstract: Pot tending machine for a series of electrolysis cells designed for the production of aluminum by igneous electrolysis including: a) an overhead traveling crane which can be relocated above said electrolysis cells, b) a tool carriage onto which is fixed a service module comprising tools; c) a tapping winch, interdependent of said overhead traveling crane, designed to grasp and position near cell a tapping assembly including a ladle, a tapping tube and a vacuum device; d) a freestanding device able to generate compressed air; characterized in that said compressed air generating device of includes a first compressor, able to provide a flow of compressed air at least equal to the minimum air flow necessary for operations other than tapping, and at least one second compressor mounted in such a way that, when operating simultaneously with said first compressor, the unit provides a flow of compressed air at least equal to the minimum output of air necessary during tapping.Type: GrantFiled: September 15, 2009Date of Patent: February 11, 2014Assignee: E.C.L.Inventors: Arnaud Wattel, Stéphane David
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Publication number: 20130181468Abstract: A handling device of a connector designed to connect an anode stem onto the anode frame of an aluminium production plant using igneous electrolysis, said connector being equipped with two side trunnions able to cooperate with support hooks interdependent with said anode frame and placed on either side of the anode stem, so as to pin said anode stem against said anode frame, said handling device comprising at least a guiding member having a notch associated with each of said trunnions and designed to receive said trunnion, said handling device being characterize in that it also includes: at least a gripping member, having an open position and a closed position, said guiding member and said gripping member cooperating in such a manner that, when said gripping member is in open position, each trunnion can be inserted into or extracted from said notch, and when said gripping member is in closed position, each trunnion can only move a limited distance in said notch, between a so-called “low” position, corresponType: ApplicationFiled: September 6, 2011Publication date: July 18, 2013Applicant: E.C.L.Inventor: Stéphane David