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).

  • Publication number: 20240125883
    Abstract: 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: Application
    Filed: April 13, 2022
    Publication date: April 18, 2024
    Inventors: Antoine CARRABIN, Pierre-Arnaud COQUELIN, Stéphane DAVID-GRIGNOT
  • Publication number: 20240120148
    Abstract: 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: Application
    Filed: September 28, 2023
    Publication date: April 11, 2024
    Inventors: Vinicius Azevedo de Souza e Vecchia, Stephane David, Olivier Tesson
  • Patent number: 11885545
    Abstract: 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: Grant
    Filed: August 8, 2022
    Date of Patent: January 30, 2024
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: Philippe Del Marcel Tisserand, Stephane David Koenigsecker, Yves Jacques Raimbault
  • Publication number: 20230042257
    Abstract: 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: Application
    Filed: December 29, 2020
    Publication date: February 9, 2023
    Inventors: Christian NEEL, Didier ROZIERE, Stéphane DAVID-GRIGNOT
  • Publication number: 20220381495
    Abstract: 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: Application
    Filed: August 8, 2022
    Publication date: December 1, 2022
    Inventors: Philippe Del Marcel Tisserand, Stephane David Koenigsecker, Yves Jacques Raimbault
  • Publication number: 20220290905
    Abstract: 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: Application
    Filed: May 27, 2022
    Publication date: September 15, 2022
    Inventors: Yves Jacques Raimbault, Philippe Del Marcel Tisserand, Gabriel Mateos, Stephane David Koenigsecker
  • Patent number: 11408657
    Abstract: 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: Grant
    Filed: June 29, 2021
    Date of Patent: August 9, 2022
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: Philippe Del Marcel Tisserand, Stephane David Koenigsecker, Yves Jacques Raimbault
  • Publication number: 20210404719
    Abstract: 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: Application
    Filed: June 29, 2021
    Publication date: December 30, 2021
    Inventors: Philippe Del Marcel Tisserand, Stephane David Koenigsecker, Yves Jacques Raimbault
  • Patent number: 11204146
    Abstract: 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: Grant
    Filed: December 17, 2020
    Date of Patent: December 21, 2021
    Assignee: Flex-N-Gate France
    Inventors: Stéphane David Demontoux, David Pierre Gilles Duquesnoy, Thierry Receveur
  • Publication number: 20210190285
    Abstract: 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: Application
    Filed: December 17, 2020
    Publication date: June 24, 2021
    Applicant: Flex-N-Gate France
    Inventors: Stéphane David DEMONTOUX, David Pierre Gilles DUQUESNOY, Thierry RECEVEUR
  • Publication number: 20190212587
    Abstract: 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: Application
    Filed: September 14, 2017
    Publication date: July 11, 2019
    Inventors: Eric DURAND, Christophe DERYCKE, Laurent BOUDJEMAA, Stephane DAVID
  • Patent number: 9800153
    Abstract: 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: Grant
    Filed: July 16, 2015
    Date of Patent: October 24, 2017
    Assignee: NXP B.V.
    Inventor: Stephane David
  • Patent number: 9507358
    Abstract: 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: Grant
    Filed: March 19, 2015
    Date of Patent: November 29, 2016
    Assignee: NXP B.V.
    Inventors: Stephane David, Fabian Riviere
  • Publication number: 20160036329
    Abstract: 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: Application
    Filed: July 16, 2015
    Publication date: February 4, 2016
    Inventor: Stephane David
  • Publication number: 20150268680
    Abstract: 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: Application
    Filed: March 19, 2015
    Publication date: September 24, 2015
    Inventors: Stephane David, Fabian Riviere
  • Patent number: 8888156
    Abstract: 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: Grant
    Filed: September 6, 2011
    Date of Patent: November 18, 2014
    Assignee: E.C.L.
    Inventor: Stéphane David
  • Publication number: 20140231268
    Abstract: 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: Application
    Filed: September 24, 2012
    Publication date: August 21, 2014
    Inventor: Stéphane David
  • Patent number: 8756837
    Abstract: 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: Grant
    Filed: December 8, 2009
    Date of Patent: June 24, 2014
    Assignee: E.C.L.
    Inventors: Arnaud Wattel, Stéphane David
  • Patent number: 8647481
    Abstract: 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: Grant
    Filed: September 15, 2009
    Date of Patent: February 11, 2014
    Assignee: E.C.L.
    Inventors: Arnaud Wattel, Stéphane David
  • Publication number: 20130181468
    Abstract: 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, correspon
    Type: Application
    Filed: September 6, 2011
    Publication date: July 18, 2013
    Applicant: E.C.L.
    Inventor: Stéphane David