公开(公告)号：US20160156095A1

公开(公告)日：2016-06-02

申请号：US14905605

申请日：2014-07-15

Applicant: INSTITUT MINES TELECOM / TELECOM BRETAGNE

Inventor： Jean-Philippe Coupez

IPC: H01Q1/38 ,  H01Q1/52 ,  H01Q21/29 ,  H01Q1/36 ,  H01Q1/50

Abstract: The invention relates to an antennal structure adapted to be disposed on an earth plane comprising: a three-dimensional support substrate made of a dielectric material which is partially hollowed out and comprising a peripheral wall which extends between a proximal end and a distal end, said support substrate defining an internal volume; a first conducting pattern inscribed on the peripheral wall of the support substrate, the first conducting pattern comprising a lower end adapted to be connected to an earth plane and an upper end; a second conducting pattern contained in the volume of the substrate, the second pattern being connected electrically to the upper end of the first pattern.

Abstract translation: 本发明涉及一种适于设置在接地平面上的触角结构，包括：由电介质材料制成的三维支撑基板，该电介质材料部分中空，并包括在近端和远端之间延伸的周壁， 支撑衬底限定内部容积; 第一导电图案，其内嵌在支撑基板的周壁上，第一导电图案包括适于连接到接地平面的下端和上端; 第二导电图案包含在基板的体积中，第二图案电连接到第一图案的上端。

公开(公告)号：US12290325B2

公开(公告)日：2025-05-06

申请号：US18557555

申请日：2022-04-14

Applicant: INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE ,  UNIVERSITE BREST BRETAGNE OCCIDENTALE ,  CENTRE HOSPITALIER ET UNIVERSITAIRE DE BREST ,  INSTITUT MINES TELECOM

Inventor： Guillaume Dardenne ,  Salaheddine Sta ,  Eric Stindel ,  Thomas Gicquel

IPC: A61B34/20 ,  A61B34/10 ,  A61B90/00 ,  G06T7/00

Abstract: Computer device (33) for determining an appropriate positioning of an instrumentation on a target bone area (200) according to a relative positioning (42) of said instrumentation to said target bone area defined by a surgical planning (32), said device comprising—an interface for receiving from a 3D camera (31) a depth map (41) of a captured scene (310) comprising at least said target bone area; —computing means for determining a position element of said target bone area from said depth map; determining a second positioned shape (442) of said target bone area according to said relative positioning (42), and determining data (43) representative of said appropriate positioning on the base of said second positioned shape (442) and said position element; —a human-machine interface for providing said data.

公开(公告)号：US12155424B2

公开(公告)日：2024-11-26

申请号：US18274233

申请日：2022-02-03

Applicant: INSTITUT MINES TELECOM

Inventor： Ghaya Rekaya Ben-Othman ,  Chao Zhang ,  Aymen Askri

IPC: H04B7/024 ,  H04B7/0456

Abstract: A communication system having to an open radio access network architecture, the communication system includes a number (K) of user equipments configured to exchange messages through the communication system, the communication system comprising one or more radio unit and a distributed unit, each radio unit being connected to the distributed unit through a fronthaul link having a given capacity. The communication system comprises a coordination system being configured to coordinate the exchanges between the radio units of the system and the distributed unit, in response to a signal received by the radio units from a user equipment. The coordination system is configured to send a signalling message to each radio unit comprising data stream selection information, each radio unit comprising: a transformation unit configured to apply a transformation operation to the signal vector received by the radio unit, which provides a transformed vector, the transformation operation being defined to reduce the dimension of the received signal vector; a data stream selection unit configured to select a number of data streams corresponding to components of the transformed vector using the data stream selection information comprised in the signalling message, a quantizer configured to apply a quantization operation to the selected data streams, which provides quantized vectors, the radio unit being configured to send the quantized vectors to the distributed unit. The sum of the numbers of data streams selected at the radio units, over all the radio units of the communication system, is higher or equal to the product of the number of user equipments (K) and the number of antennas of a user equipment.

公开(公告)号：US20240030969A1

公开(公告)日：2024-01-25

申请号：US18026561

申请日：2021-09-24

Applicant: INSTITUT MINES TELECOM

Inventor： Ghaya REKAYA ,  Aymen ASKRI

IPC: H04B7/0456 ,  H04B7/0452

CPC classification number: H04B7/0456 ,  H04B7/0452

Abstract: A precoder for precoding a vector of information symbols to be sent to a plurality of users, the precoder includes a user ordering and grouping unit configured to group the plurality of users depending on one or more quality of service indicators and on modulation and coding parameters associated with the plurality of users, the user ordering and grouping unit being configured to divide a predefined upper triangular precoding matrix into a plurality of sub-matrices and to divide the vector of information symbols into a plurality of sub-vectors, each sub-vector comprising information symbols to be sent to a group of users, the sub-vectors being arranged according to an arbitrary order of the one or more quality of service indicators; a precoding unit configured to determine a perturbation vector according to the minimization of a transmit power metric, the perturbation vector comprising a plurality of perturbation sub-vectors, each perturbation sub-vector corresponding to a sub-vector of information symbols, the precoding unit being configured to determine an estimate of each perturbation sub-vector by applying a recursive search algorithm.

公开(公告)号：US11842443B2

公开(公告)日：2023-12-12

申请号：US18172847

申请日：2023-02-22

Applicant: Adobe Inc. ,  Institut Mines Telecom

Inventor： Thibaud Lambert ,  Tamy Boubekeur ,  Anthony Salvi

IPC: G06T17/20 ,  G06T15/04

CPC classification number: G06T17/20 ,  G06T15/04

Abstract: The disclosure describes one or more embodiments of systems, methods, and non-transitory computer-readable media that modify vertex positions of a 3D-object mesh to align the vertices with discontinuities indicated by a sharpness map for a displacement map. For example, the disclosed systems access a sharpness map that encodes discontinuities of a displacement map to preserve sharp features. During sharp tessellation, for a given vertex of the 3D-object mesh, the disclosed systems iterate over neighboring vertices to search for a nearest intersection between one of the incident edges of the vertex and neighboring vertices and a discontinuity line from the sharpness map. Then, the vertex is moved within a threshold distance of the nearest discontinuity line intersection along the incident edge. The disclosed systems similarly reposition other vertices of the 3D-object mesh to generate a modified 3D-object mesh that includes vertices that align with discontinuities present in a displacement map.

公开(公告)号：US20230182342A1

公开(公告)日：2023-06-15

申请号：US17917138

申请日：2021-04-08

Applicant: UNIVERSITE DE LORRAINE ,  INSTITUT MINES TELECOM ,  UNIVERSITE LIBANAISE

Inventor： Nicolas BROSSE ,  Romain KAPEL ,  Rodolphe SONNIER ,  Roland EL HAGE ,  César SEGOVIA ,  Karina ANTOUN ,  Maria MOUSSA

IPC: B27K3/02 ,  B27K3/50 ,  B27K3/34 ,  B27K3/36 ,  B27K3/38

CPC classification number: B27K3/0207 ,  B27K3/50 ,  B27K3/346 ,  B27K3/36 ,  B27K3/38

Abstract: A flame retardant treatment of a lignocellulosic material, which includes: optionally steam exploding the lignocellulosic material, impregnating the optionally steam-exploded lignocellulosic material, in or with an aqueous solution, from 0.5% to 10% of phytic acid and from 1% to 30% of urea, based on the total weight of the aqueous solution, optionally drying of the impregnated lignocellulosic material, until the impregnated lignocellulosic material has a moisture content from 5% to 20% by weight, cooking the impregnated and optionally dried lignocellulosic material, the resulting flame-retarded lignocellulosic material including a phosphorous content originating from the phytic acid from 0.1% to 10% by weight. Also, the resulting flame-retarded lignocellulosic material and the use thereof for manufacturing flame-retarded composite materials based on plant fibres, woven or nonwoven flame-retarded flexible materials based on plant fibres, and particularly textiles, flame-retarded materials based on wood fibres and/or on wood particles, and particularly flame-retarded wood panels.

公开(公告)号：US11539438B2

公开(公告)日：2022-12-27

申请号：US17049023

申请日：2019-04-10

Applicant: INSTITUT MINES-TELECOM

Inventor： Ghaya Rekaya ,  Akram Abouseif ,  Yves Jaouen

IPC: H04B10/2581 ,  G02B6/14 ,  H04B10/2507 ,  H04B10/516 ,  H04J14/04

Abstract: The various embodiments provide an optical transmission system comprising an optical transmitter configured to transmit data over an optical fiber transmission channel made of a multi-core fiber, optical signals carrying the data propagate along the multi-core fiber according to two or more cores, the multi-core fiber being associated with fiber parameters and misalignment losses values, wherein the optical transmission system comprises a system administration device configured to determine a core dependent loss value depending on the fiber parameters and misalignment losses values.

公开(公告)号：US11515986B2

公开(公告)日：2022-11-29

申请号：US17042453

申请日：2019-03-20

Applicant: INSTITUT MINES-TELECOM ,  UNIVERSITE LIBANAISE ,  UNIVERSITE SAINT-ESPRIT DE KASLIK

Inventor： Marie-Rita Hojeij ,  Charbel Abdel Nour ,  Joumana Farah ,  Catherine Douillard

IPC: H04L5/00 ,  H04W52/32 ,  H04W72/04 ,  H04W72/10

Abstract: A mechanism is presented for attributing users to one or more of a plurality of sub-bands in a multiple access communications system, wherein in an initial assignment phase, a first user is selected for a sub band, for example on the basis of a user priority. Users having complementary channel gains to that of the first user are identified, and then a second sub-band user maximizing a performance metric reflecting the achieved throughput, and/or fairness across users, is selected to accompany the first user on that sub-band. The initial assignment phase may terminate once all users have been assigned to a sub-band once. After the first phase is complete, the first user for each sub-band may be the user whose achieved total throughput is furthest from a target throughput defined for that user, wherein each user is assigned to the remaining sub-band to which no first user is currently attributed offering the highest channel gain for that user. Mechanisms for determining user priority, making provisional and definitive power allocations, and performance metrics are proposed.

公开(公告)号：US11501110B2

公开(公告)日：2022-11-15

申请号：US16621643

申请日：2018-06-08

Applicant: INSTITUT MINES TELECOM ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

Inventor： Jérémie Jakubowicz

IPC: G06K9/62 ,  G06N3/04 ,  G06N3/08 ,  G06V20/40

Abstract: The present invention relates to a method for learning class descriptors for the detection and the automatic location of objects in a video, each object belonging to a class of objects from among a set of classes, the method using: a learning base, composed from reference videos and containing annotated frames each comprising one or more labels identifying each object detected in the frames, descriptors associated with these labels and learned previously by a preprocessing neural network from the annotated frames of the learning base, an architecture of neural networks defined by parameters centralized on a plurality of parameter servers, and a plurality of computation entities working in parallel, a method in which, for each class of objects, one of the neural networks of the architecture is trained by using as input data the descriptors and the labels to define class descriptors, each computation entity using, for the computation of the class descriptors, a version of the parameters of the parameter server on which the entity depends, and returning to this parameter server the parameters updated at the end of its computation, and the parameter servers exchanging with one another the parameters of each computation entity for the training of the neural networks for each class descriptor.

公开(公告)号：US20220253670A1

公开(公告)日：2022-08-11

申请号：US17620717

申请日：2020-06-24

Applicant: INSTITUT MINES-TELECOM

Inventor： Ghaya REKAYA ,  Aymen ASKRI

IPC: G06N3/04 ,  G06F17/16 ,  G06K9/62

Abstract: A lattice prediction device for predicting a number of lattice points falling inside a bounded region in a given vector space is provided. The bounded region is defined by a radius value, a lattice point representing a digital signal in a lattice constructed over the vector space. The lattice is defined by a lattice generator matrix comprising components. The lattice prediction device comprises a computation unit configured to determine a predicted number of lattice points by applying a machine learning algorithm to input data derived from the radius value and the components of lattice generator matrix.