Patents Assigned to Universite de Rennes 1
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Publication number: 20210159348Abstract: A shielding element comprises a rigid substrate and at least one electrically conductive two-dimensional structure which is placed on one of the faces of the substrate. The substrate and the electrically conductive two-dimensional structure are such that the shielding element has optical-transmission and shielding-efficiency values at least one of which varies between two zones of the shielding element. Such a shielding element enables easier assembly of a detection system comprising multiple optical sensors.Type: ApplicationFiled: January 19, 2021Publication date: May 27, 2021Applicants: SAFRAN ELECTRONICS & DEFENSE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS -, UNIVERSITE DE RENNES 1Inventors: Cyril DUPEYRAT, Patrice FOUTREL, Philippe BESNIER, Xavier CASTEL, Yonathan CORREDORES
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Publication number: 20210153799Abstract: A system for estimating physical parameter(s) of a medium having electrolyte(s), including at least one working electrode; one counter electrode; a current generator delivering to the electrodes electric current pulses; a computer-readable memory including a predefined analytic model of an electric potential, between the working and counter electrodes, as a function of time, receiving as inputs the current and current pulse duration and including the physical parameter to be estimated; an acquisition unit including a signal amplifier for acquiring and amplifying an electric potential recorded by the electrodes; a processor including a stimulation module controlling the current generator to deliver a biphasic charge-balanced current during a stimulation duration; an acquisition module acquiring an electric potential variation during the stimulation duration; and a calculation module receiving the acquired electric potential variation, fitting the acquired electric potential variation using the predefined analyType: ApplicationFiled: June 21, 2019Publication date: May 27, 2021Applicants: UNIVERSITÉ DE RENNES 1, INSERM (INSTITUT NATIONAL DE LA SANTÉ ET DE LA RECHERCHE MÉDICALE)Inventors: Julien MODOLO, Andres CARVALLO, Fabrice WENDLING, Pascal BENQUET
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Patent number: 10995246Abstract: The present invention provides a curable adhesive composition comprising at least one curable silylated polymer and at least one curing catalyst obtained by reaction of a metal alkoxide and an oxime. The present invention also provides the use of a metal compound obtained by reaction of a metal alkoxide and an oxime as curing catalyst for silylated polymers.Type: GrantFiled: June 5, 2017Date of Patent: May 4, 2021Assignees: BOSTIK SA, Centre National de la Recherche Scientifique (CNRS), UNIVERSITE DE RENNES 1Inventors: Boris Colin, Guillaume Michaud, Frederic Simon, Olivier Lavastre
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Patent number: 10910701Abstract: The radio antenna comprises a substrate formed of a dielectric material; a ground plane made of an electrically conductive material, the ground plane being arranged on a first face (F2) of the substrate; a resonator configured to convert an incident electrical signal into an electromagnetic wave. The resonator includes a first element (E1) having a first characteristic impedance and a second element (E2) having a second characteristic impedance that is higher than the first characteristic impedance. The first element (E1) is configured to receive the incident electrical signal, the first element (E1) is formed by a strip of electrically conductive material, the strip being arranged on a second face (F1) of the substrate opposite the first face (F2). The second element (E2) is formed by a rectilinear segment, cut in the ground plane and separated from the rest of the ground plane by a slot (202) of fixed width.Type: GrantFiled: October 4, 2018Date of Patent: February 2, 2021Assignees: BODYCAP, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE RENNES 1Inventors: Denys Nikolayev, Maxim Zhadobov, Ronan Sauleau
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Patent number: 10903573Abstract: The disclosure relates to a ferrite antenna comprising at least one main contour, comprising at least one first winding referred to as main winding, at least one first ferromagnetic rod referred to as main ferromagnetic rod and a tuning system, each main winding being wound around a main ferromagnetic rod and connected to the tuning system comprising a capacitor connected in parallel with the main winding. The ferrite antenna further comprises a non-resonant secondary contour, comprising a secondary winding separated electrically from each main winding and a secondary ferromagnetic rod around which the secondary winding is wound, and each main ferromagnetic rod and the secondary ferromagnetic rod are arranged parallel to one another so as to make it possible for a magnetic coupling of each main winding with the secondary winding.Type: GrantFiled: September 25, 2017Date of Patent: January 26, 2021Assignees: TDF, UNIVERSITE DE RENNES 1Inventors: Evgueni Kaverine, Sébastien Palud, Mohamed Himdi, Franck Colombel
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Patent number: 10879577Abstract: The present disclosure relates to a multilayer electromagnetic waveguide that includes a plurality of layers forming guide channels for an electromagnetic wave, and at least one transition device including at least one dielectric layer between two guide channels, referred to as coupled guide channels, extending as an extension. Each transition device includes at least one adaptation channel extending in a longitudinal direction, and each adaptation channel is defined by two electrically conductive walls. At least one wall extends along the dielectric spacer layer from one end of the coupled guide channel, over a length suitable for optimizing the transmission of an electromagnetic wave between the two coupled guide channels.Type: GrantFiled: October 16, 2017Date of Patent: December 29, 2020Assignees: CENTRE NATIONAL D'ETUDES SPATIALES CNES, LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, L'UNIVERSITE DE RENNES 1Inventors: Nicolas Capet, Francesco Foglia Manzillo, Karim Tekkouk, Ronan Sauleau, Mauro Ettorre
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Publication number: 20200363307Abstract: A method for determining a rate of sedimentation or of creaming of a mixture in suspension, including an application of a sample of the mixture in suspension to a photonic microresonator, an application of a first optical signal at the input of the photonic microresonator carrying the sample of the mixture in suspension, an acquisition and a recording of a second optical signal, delivered at the output of the microresonator carrying the sample of the mixture in suspension, and a determination of information representing a rate of sedimentation or of creaming of the mixture from the recorded second signal, by successive iterations of spectral analysis of the second optical signal.Type: ApplicationFiled: January 17, 2019Publication date: November 19, 2020Applicants: UNIVERSITE DE RENNES 1, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)Inventors: Bruno BECHE, Hervé LHERMITE, Véronique VIE, Lucas GARNIER
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Publication number: 20200335641Abstract: A shielding element comprises a rigid substrate and at least one electrically conductive two-dimensional structure which is placed on one of the faces of the substrate. The substrate and the electrically conductive two-dimensional structure are such that the shielding element has optical-transmission and shielding-efficiency values at least one of which varies between two zones of the shielding element. Such a shielding element enables easier assembly of a detection system comprising multiple optical sensors.Type: ApplicationFiled: May 22, 2017Publication date: October 22, 2020Applicants: SAFRAN ELECTRONICS & DEFENSE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS -, UNIVERSITE DE RENNES 1Inventors: Cyril DUPEYRAT, Patrice FOUTREL, Philippe BESNIER, Xavier CASTEL, Yonathan CORREDORES
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Patent number: 10772930Abstract: The present invention relates to an isolated bacterium from the genus Pseudoalteromonas for its use as a probiotic, the use of said strain as a preservative, cyclolipopeptides which may be obtained from this bacterium, a composition comprising at least such a cyclolipopeptide, as well as to their uses.Type: GrantFiled: March 27, 2018Date of Patent: September 15, 2020Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.), UNIVERSITE DE RENNES 1, UNIVERSITE DE BRETAGNE OCCIDENTALEInventors: Florie Desriac, Yannick Fleury, Patrick Le Chevalier, Delphine Destoumieux, Matthieu Simon
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Publication number: 20200255571Abstract: 1) Hydrocarbon-based copolymer comprising two end groups preceded by an ether function and chosen from a 2-oxo-1,3-dioxolan-4-yl (or cyclocarbonate), a dithiocyclocarbonate, and a 2-oxo-1,3-dioxolen-4-yl, the main chain of which comprises units (I) and (II) in which R0 is notably a methyl radical; and the number-average molecular mass Mn of which is between 400 and 100 000 g/mol. 2) Process for preparing said copolymer, comprising: (i) a step of heating a statistical bipolymer A chosen from a poly(butadiene-isoprene), a poly(butadiene-myrcene) and a poly(butadiene-farnesene); and then (ii) a step of heating the product formed, in the presence of a chain-transfer agent. 3) Use as adhesive, as a mixture with an amine compound comprising at least two amine groups.Type: ApplicationFiled: September 27, 2018Publication date: August 13, 2020Applicants: BOSTIK SA, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE RENNES 1Inventors: Guillaume MICHAUD, Stephane FOUQUAY, Frederic SIMON, Sophie GUILLAUME, Jean-Francois CARPENTIER, Cyril CHAUVEAU
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Publication number: 20200255587Abstract: 1) Hydrocarbon-based copolymer comprising two end groups preceded by an ester function and chosen from a 2-oxo-1,3-dioxolan-4-yl (or cyclocarbonate), a dithiocyclocarbonate, an exo-vinylene cyclocarbonate and a 2-oxo-1,3-dioxolen-4-yl, the main chain of which comprises units (I) and (II) in which R0 is notably a methyl radical; and the number-average molecular mass Mn of which is between 400 and 100 000 g/mol. 2) Process for preparing said copolymer, comprising: (i) a step of heating a statistical bipolymer A chosen from a poly(butadiene-isoprene), a poly(butadiene-myrcene) and a poly(butadiene-farnesene); and then (ii) a step of heating the product formed, in the presence of a chain-transfer agent. 3) Use as adhesive, as a mixture with an amine compound comprising at least two amine groups.Type: ApplicationFiled: September 27, 2018Publication date: August 13, 2020Applicants: BOSTIK SA, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE RENNES 1Inventors: Guillaume MICHAUD, Stephane FOUQUAY, Frederic SIMON, Sophie GUILLAUME, Jean-Francois CARPENTIER, Cyril CHAUVEAU
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Patent number: 10739392Abstract: Some embodiments relate to a device for simulating characteristics of human tissues in electromagnetic dosimetry. The device includes a substrate bearing a metallised shielding, a layer of a dielectric material arranged on or preferentially beneath the substrate and the device including a plurality of openings made in the shielding and at least one array of sensors in the layer of dielectric material.Type: GrantFiled: July 20, 2016Date of Patent: August 11, 2020Assignees: UNIVERSITÉ DE RENNES 1, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRSInventors: Maxim Zhadobov, Artem Boriskin
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Patent number: 10735111Abstract: A method for determining a distance to a passive intermodulation source in a device under test, the method comprising transmitting at least two signals with respective different frequencies to the device under test, receiving a complex response signal from the device under test, the complex response signal comprising a passive intermodulation of the at least two signals, generating an autocorrelation matrix using the complex response signal, the autocorrelation matrix representing power information of the complex response signal, decomposing the complex response signal, using the autocorrelation matrix, into a signal component part and a noise component part and determining a distance to the passive intermodulation source in the device under test using the noise and/or signal component part.Type: GrantFiled: November 3, 2017Date of Patent: August 4, 2020Assignees: NOKIA SHANGHAI BELL CO., LTD., UNIVERSITÉ DE RENNES 1Inventors: Jean-Pierre Harel, Gilles Duteil, Patrick Lecam, Franck Colombel, Stéphane Avrillon
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Publication number: 20200235473Abstract: The invention concerns an antenna, comprising at least two non-ferrous metal plates, at least one first plate forming a radiating portion and a second plate forming a mass plane, at least one substrate, arranged between the mass plane and the radiating portion, and an excitor of length at least equal to the thickness of the substrate, extending between the mass plane and the radiating portion and connected to the radiating portion, and adapted to supply the antenna, characterised in that the substrate is a dispersive ferromagnetic substrate, called dispersive ferrite presenting, as magnetic features, a high relative magnetic permeability comprised between 10 and 10,000 and a high magnetic loss tangent greater than 0.1, said antenna comprising means for gradually and locally reducing magnetic features of the dispersive ferrite.Type: ApplicationFiled: October 4, 2018Publication date: July 23, 2020Applicants: TDF, UNIVERSITE DE RENNES 1Inventors: Evgueni KAVERINE, Sébastien PALUD, Franck COLOMBEL, Mohamed HIMDI
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Publication number: 20200208030Abstract: Hydrocarbon copolymer P comprising 2 alkoxysilane end groups F1 and F2 of formulae: —F1 : (R?O)3-tRtSi—R?—NH—C(O)O—(CH2)g1— and F2: —(CH2)d1—OC(O)—NH—R?—SiRtOR?)3-t; or —F1: (R?O)3-tRtSi—R?—NR??—C(O)—NH—(CH2)g1— and F2: —(CH2)d1—NH—C(O)—NR??—R?—SiRt(OR?)3-t; or —F1: (R?O)3-tRtSi—R?—NR??—C(O)—(CH2)g2— and F2: —(CH2)d2C(O)—NR??—R?—SiRt(OR?)3-t; wherein t is 0, 1 or 2; g1 and d1 are 1, 2 or 3; g2 and d2 are 0, 1, 2 or 3; R and R? represent a C1-C4 alkyl; R? is a C1-C4 alkylene radical; R?? is method for producing the copolymer, by heating a statistical bipolymer A: poly(butadiene-isoprene), poly(butadiene-myrcene) or poly(butadiene-farnesene); and heating the formed product, in the presence of a chain transfer agent of formula (C) and adhesive composition of the copolymer and a crosslinking catalyst.Type: ApplicationFiled: May 22, 2018Publication date: July 2, 2020Applicants: BOSTIK SA, Centre National De La Recherche Scientifique, Universite De Rennes 1Inventors: Guillaume MICHAUD, Frederic SIMON, Stephane FOUQUAY, Xiaolu MICHEL, Jean-Francois CARPENTIER, Sophie GUILLAUME
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Publication number: 20200172660Abstract: 1) Hydrocarbon copolymer P comprising 2 alkoxysilane end groups F1 and F2 of formulae: —F1: (R?O)3-tRtSi—(CH2)g1- and F2: —(CH2)d1—SiRt(OR?)3-t; or F1: (R?O)3-tRtSi—R?—O(O)C—(CH2)g2— and F2: —(CH2)d2—C(O)O—R?—SiRt(OR?)3-t; wherein t is 0, 1 or 2; g1 and d1 are 1, 2 or 3; g2 and d2 are 0, 1, 2 or 3; R et R? represent a C1-C4 alkyl; R? is a C1-C4 alkylene radical; the main chain comprising motifs (I) and (II) in which R0 is in particular the methyl radical; and the number average molecular mass Mn thereof being between 400 and 100,000 g/mol. 2) Method for producing said copolymer, comprising: (i) a step of heating a statistical bipolymer A selected from a poly(butadiene-isoprene), a poly(butadiene-myrcene) and a poly(butadiene-farnesene); and subsequently (ii) a step of heating the formed product, in the presence of a chain transfer agent of formula (C). 3) Adhesive composition comprising said copolymer.Type: ApplicationFiled: May 22, 2018Publication date: June 4, 2020Applicants: BOSTIK SA, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE RENNES 1Inventors: Guillaume MICHAUD, Xiaolu MICHEL, Frederic SIMON, Stephane FOUQUAY, Sophie GUILLAUME, Jean-Francois CARPENTIER
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Publication number: 20200173859Abstract: An optically transparent electromagnetic shield assembly comprising an electrical connection device with variable electrical resistance. The electrical connection device electrically connects a conductive two-dimensional structure, which covers a transparent substrate, to a shell portion which is electrically conductive. The resistance of the connection device can be adjusted, either initially for a detection system for which the shield assembly is intended or in real time while the shield assembly is in use, according to an RF radiation intensity.Type: ApplicationFiled: May 15, 2018Publication date: June 4, 2020Applicants: SAFRAN ELECTRONICS & DEFENSE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS, UNIVERSITE DE RENNES 1Inventors: Cyril Dupeyrat, Patrice Foutrel, Philippe Besnier, Xavier Castel, Yonathan Corredores
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Patent number: 10663554Abstract: The invention relates to a module (6) for producing an MRI and/or MRS reference signal (S0), characterized in that the module comprises: a first receiving input (621) for receiving of an MRI and/or MRS synchronization signal (S3), a second receiving input (612) for receiving of a time signal (S8) of external stimulation, supply means (62) for supplying of a prescribed signal (RV) representing an MRI and/or MRS virtual object (RVV), generating means for generating of the MRI and/or MRS reference signal (S0), for temporally varying the MRI and/or MRS reference signal (S0) in the same way as a time characteristic determined from the time signal (S8) of external stimulation and in synchronization with the MRI and/or MRS synchronization signal (S3), a supply output (632) for supplying of the MRI and/or MRS reference signal (S0).Type: GrantFiled: April 1, 2016Date of Patent: May 26, 2020Assignees: Universite De Rennes 1, Institut National de la Sante et de la Recherche Medicale (INSERM), Fondat Region Ouest Ligue CancerInventors: Hervé Saint-Jalmes, Giulio Gambarota
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Patent number: 10652295Abstract: A method is proposed for optimizing the bit rate of multimedia contents accessible by a plurality of user terminals connected to a radiocommunications network cell. The multimedia contents are stored in the form of a plurality of independent chunks on at least one multimedia contents server associated with at least one contents provider. The method includes the following steps, implemented in a device for optimizing the bit rate: receiving one request to obtain a multimedia description file, sent by a user terminal; obtaining a multimedia description file; modifying the multimedia description file on the basis of a piece of information representing a quality of delivery, delivering a modified multimedia description file; and transmitting the modified multimedia description file to the user terminal.Type: GrantFiled: March 31, 2017Date of Patent: May 12, 2020Assignees: ORANGE, UNIVERSITE DE RENNES 1Inventors: Yue Li, Philippe Bertin, Yassine Hadjadjaoul
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Patent number: 10631382Abstract: The invention relates to a lighting device (LIGHT) of a graphic and/or textual content represented on any support and in particular of the paper type, characterized in that a light beam generated in a visible light spectrum is activated and periodically deactivated from the lighting device (LIGHT) according to successive cycles operated at a predetermined frequency (Fd) and in that the successive illumination periods each have a duration (T1) within a range of values from 15 to 30% of the duration (T) of the operated cycles.Type: GrantFiled: January 30, 2018Date of Patent: April 21, 2020Assignee: UNIVERSITÉ DE RENNES 1Inventors: Albert Le Floch, Guy Ropars