公开(公告)号：US20250096862A1

公开(公告)日：2025-03-20

申请号：US18727199

申请日：2023-01-03

Applicant: INSTITUT MINES TELECOM

Inventor： Aymen Ktari ,  Hadi GHAUCH ,  Ghaya REKAYA BEN-OTHMAN

IPC: H04B7/0456 ,  H04B17/309

Abstract: A method for selecting beams in a Millimeter-Wave MIMO system, using at least a transmitter antennas codebook indexing a plurality of beam patterns and a receiver antennas codebook indexing a plurality of beam patterns, at least one beam pattern being selected among said transmitter antennas codebook and at least one beam pattern being selected among said receiver antennas codebook, said selected beam patterns forming one or more pair of beams, said pair forming a channel for transmitting information between the transmitter and receiver antennas, with at least the following steps: sounding only a subset of beam pair, measuring a transmission quality parameter of said subset beam pairs to be indexed in an matric, using a learning model to select the beam pair having the maximum value of transmission quality parameter to form the channel for transmitting information between the transmitter and receiver antennas.

公开(公告)号：US12238766B2

公开(公告)日：2025-02-25

申请号：US17787301

申请日：2020-12-11

Applicant: INSTITUT MINES TELECOM

Inventor： Manuj Mukherjee ,  Aslan Tchamkerten ,  Chadi Jabbour

IPC: H04W74/08 ,  H04W74/0808

Abstract: A channel sensing device for detecting preamble transmission by observing a channel sensing sequence of a length smaller than or equal to a maximum given length, the channel sensing device being implemented in a receiver, the channel sensing sequence includes one or more samples. The channel sensing device is configured to: receive input parameters comprising a target reliability metric, a receiver noise profile, the maximum given length, a received power, and a probability of there being a preamble; determine channel sensing parameters given the input parameters and according to the inimization of the average energy consumption per given length, the channel sensing parameters comprising a number of channel sensing phases, and a number of samples, a receiver power consumption value, and a preamble detection threshold corresponding to each of the channel sensing phases; perform a first channel sensing phase comprising: observing a batch of samples of the one or more samples by consuming the receiver power consumption value corresponding to the first phase channel sensing phase; applying a hypothesis test comprising the comparison of a value derived from the observed samples with the preamble detection threshold corresponding to the first channel sensing phase; deciding on the presence of a preamble or on performing a subsequent channel sensing phase based on the comparison and/or whether the number of channel sensing phases is greater than one; a subsequent channel sensing phase comprising: observing a batch of samples by consuming the receiver power consumption value corresponding to the channel sensing phase; applying a hypothesis test comprising the comparison of a value derived from all of the so far observed samples with the preamble detection threshold; deciding on the presence of a preamble or on performing a subsequent channel sensing phase based on the comparison and/or on a condition related to a number of performed channel sensing phases compared with the number of channel sensing phases.

公开(公告)号：US12144614B2

公开(公告)日：2024-11-19

申请号：US16962971

申请日：2019-01-18

Applicant: King Abdullah University of Science and Technology ,  Institut Mines Telecom ,  Imperial College London

Inventor： Sahika Inal ,  Anna-Maria Pappa ,  Alexander Giovannitti

IPC: A61B5/145 ,  A61B5/1486 ,  C12Q1/00

Abstract: N-type polymer based electrochemical devices include one or more source electrodes, one or more drain electrodes, one or more channels, a gate electrode, and an electrolyte solution are disclosed. The channels include one or more n-type polymers and one or more enzymes. The gate electrode includes one or more n-type polymers and one or more enzymes. The source and the drain electrodes are electrically connected by the corresponding channel. The electrolyte solution contains one or more metabolites capable of reacting with the one or more enzymes in the channel and the gate electrode and is in electrical contact with the channel and the gate electrode. Saturation current that flows through the channel increases when the metabolites react with the enzymes to produce electrons, which are directly transferred to the n-type polymers at the gate electrode and the channel. Methods of making and using the n-type electrochemical device are also disclosed.

公开(公告)号：US12068781B2

公开(公告)日：2024-08-20

申请号：US17784641

申请日：2020-12-08

Applicant: INSTITUT MINES TELECOM ,  MIRSENSE

Inventor： Frédéric Grillot ,  Olivier Spitz

IPC: H04B10/00 ,  H04B10/112 ,  H04L9/00 ,  H04L9/08 ,  H04L9/12

CPC classification number: H04B10/112 ,  H04L9/001 ,  H04L9/0852 ,  H04L9/12

Abstract: A free-space optical communication system includes a transmitter and a receiver, the transmitter being configured to transmit an encrypted message to the receiver at the mid-infrared domain, the transmitter comprising a master mid-infrared optical source configured to generate a mid-infrared signal and a chaos generator configured to generate a chaotic signal by applying external optical feedback to the master mid-infrared optical source, the transmitter being configured to determine an encrypted message from an original message by applying a message encryption technique to the original message and to send the encrypted message to the receiver through an optical isolator, the receiver comprising a slave mid-infrared optical source similar to the master mid-infrared optical source the slave mid-infrared optical source being configured to recover the chaotic signal from the encrypted message by applying chaos synchronization, the receiver further comprising a first detector configured to detect the encrypted message, a second detector configured to detect the chaotic signal, and a message recovery unit configured to recover the original message from the encrypted message detected by the first detector and the chaotic signal detected by the second detector.

公开(公告)号：US12045671B2

公开(公告)日：2024-07-23

申请号：US17289270

申请日：2019-10-22

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES ,  INSTITUT MINES-TELECOM

Inventor： Farouk Hebbache ,  Mathieu Jan ,  Florian Brandner ,  Laurent Pautet

IPC: G06F9/52 ,  G06F9/50

CPC classification number: G06F9/526 ,  G06F9/5005

Abstract: The invention relates to a method implemented by computer for arbitration between computer programs seeking to access a shared resource concurrently and each transmitting an access request. The method performs time-division multiple access according to which the time is divided into time slots, each of which is allocated to a critical program for access to the shared resource, each time slot comprising a plurality of time units. The method exploits a processing slack associated with each critical program in order to delay a processing deadline for an access request transmitted by the critical program. The method comprises, for each unit time, a step of selecting a waiting access request and a step of determining authorization for immediate processing of the selected access request. This determining operation comprises, for a unit time which does not correspond to the beginning of a time slot, when the critical program to which the next time slot is allocated has not issued the selected request, authorization for the immediate processing of the selected request if the processing slack of the critical program to which the next time slot is allocated is greater than a threshold.

公开(公告)号：US11964407B2

公开(公告)日：2024-04-23

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 ,  B27K3/34 ,  B27K3/36 ,  B27K3/38 ,  B27K3/50

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

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：US20240051233A1

公开(公告)日：2024-02-15

申请号：US18264816

申请日：2022-02-09

Applicant: UNIVERSITE CLAUDE BERNARD LYON 1 ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  ECOLE NORMALE SUPERIEURE DE LYON ,  INSTITUT MINES TELECOM

Inventor： Patrice Baldeck ,  Azeddine Tellal ,  Kevin Heggarty

IPC: B29C64/393 ,  B33Y10/00 ,  B29C64/129 ,  B33Y50/02 ,  B29C64/264

CPC classification number: B29C64/393 ,  B33Y10/00 ,  B29C64/129 ,  B33Y50/02 ,  B29C64/264

Abstract: A method—for printing a 3D object, defined by a 3D image having multiple illuminated points, in a photoreactive composition volume—includes extracting from the image a mosaic sequence. Each mosaic includes multiple solid areas, each including illuminated point(s). The mosaic sequence is projected in an axial direction, inside the volume, to form—from each projected mosaic—multiple light areas, each corresponding to a solid area of the projected mosaic. In the solid area of a mosaic, a number of illuminated points and the distribution of the illuminated points are adjusted so, when projecting the mosaic is into the volume, the light area corresponding to the solid area causes a photoreaction in an associated composition block with a desired axial resolution. In the same mosaic, the solid areas are distributed such that, when projecting the mosaic into the volume, the composition does not react between the light areas associated with the multiple solid areas.

公开(公告)号：US11588616B2

公开(公告)日：2023-02-21

申请号：US16089304

申请日：2017-03-28

Applicant: INSTITUT MINES-TELECOM

Inventor： Olivier Rioul ,  Sylvain Guilley

IPC: H04L9/00 ,  H04L9/06

Abstract: A secret key estimation device is provided for determining an estimate of at least one secret key used during a number of executions of a cryptographic function used by at least one cryptographic algorithm. The number of executions of the cryptographic function is at least equal to two. The secret key estimation device comprises an analysis unit for determining a plurality of sets of leakage traces from a side-channel information acquired during the number of executions of the cryptographic function. Each set of leakage traces corresponds to an execution of the cryptographic function and comprising at least one leakage trace. The secret key estimation device further comprises a processing unit configured to determine a statistical distribution of the acquired plurality of sets of leakage traces. The statistical distribution is dependent on a leakage function, the leakage function being represented in a basis of functions by a set of real values. The secret key estimation device is configured to determine the secret key from the statistical distribution of the plurality of sets of leakage traces using an estimation algorithm according to the maximization of a performance metric.

公开(公告)号：US20230047115A1

公开(公告)日：2023-02-16

申请号：US17783971

申请日：2020-12-10

Applicant: SAFRAN DATA SYSTEMS ,  INSTITUT MINES-TELECOM

Inventor： Marco CAGNAZZO ,  Attilio FIANDROTTI ,  Christophe RUELLAN

IPC: G06T9/00 ,  G06T3/40 ,  G06T5/00

Abstract: Method for compressing a sequence of images comprising a first image and a second image, the method comprising the steps of: generating a first descriptor comprising parameters for displaying a computer-generated graphical element in the first image, the graphical element being of non-photographic origin, and the display parameters not comprising pixel values; processing the second image so as to determine an event which gave rise to a potential variation in the parameters for displaying the graphical element between the first image and the second image; generating a second descriptor comprising an event code indicating the determined event.

公开(公告)号：US20220222954A1

公开(公告)日：2022-07-14

申请号：US17440958

申请日：2020-03-10

Applicant: INSTITUT MINES TELECOM

Inventor： Nesma HOUMANI ,  Sonia GARCIA-SALICETTI

IPC: G06V30/32 ,  G06V30/244 ,  G06V10/82 ,  G06V10/84

Abstract: A method for identifying or for verifying the identity of a user, using a plurality, of previously acquired reference signature vectors, a handwritten signature of the user and at least one additional item of handwritten information linked to the user that arc affixed beforehand to an in particular mobile digital sensor, in which method: a) said handwritten signature of the user and said at least one additional item of information are fused in order to generate at least one test signature vector, b) said at least one test signature vector is compared with a plurality of said reference signature vectors, and c) a likelihood score is generated on the basis at least of this comparison in order to identify or to verify the identity of the user.