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    Devices and methods for parallelized recursive block decoding
    202.
    发明授权
    Devices and methods for parallelized recursive block decoding 有权

    公开(公告)号：US11294674B2

    公开(公告)日：2022-04-05

    申请号：US17297994

    申请日：2019-11-21

    Applicant: INSTITUT MINES-TELECOM

    Inventor： Ghaya Rekaya

    IPC: G06F9/30 ,  G06F9/46

    Abstract: A decoder for determining an estimate of a vector of information symbols carried by a signal received through a transmission channel represented by a channel matrix is provided. The decoder includes a block division unit configured to divide the vector of information symbols into two or more sub-vectors, each sub-vector being associated with a block level; two or more processors configured to determine, in parallel, candidate sub-vectors and to store the candidate sub-vectors in a first stack. Each processor is configured to determine at least a candidate sub-vector by applying a symbol estimation algorithm and to store each candidate sub-vector with a decoding metric and the block level associated with the candidate sub-vector. The decoding metric is lower than or equal to a decoding metric threshold. A processor among the two or more processors is configured to determine at least a candidate vector from candidate sub-vectors stored in the first stack, the candidate vector being associated with a cumulated decoding metric and to update the decoding metric threshold from the cumulated decoding metric.

    Method for generating a reduced-blur digital image
    203.
    发明授权
    Method for generating a reduced-blur digital image 有权

    公开(公告)号：US11270414B2

    公开(公告)日：2022-03-08

    申请号：US16554660

    申请日：2019-08-29

    Applicant: INSTITUT MINES TELECOM

    Inventor： Cristian Felipe Ocampo ,  Yann Gousseau ,  Said Ladjal

    IPC: G06T5/00 ,  G06T5/50

    Abstract: A method for generating a reduced-blur digital image representing a scene, the method being computer-implemented and comprising the following successive steps: i) providing at least two digital source images, a same element of the scene being represented in at least two source images, ii) selecting a reference image among the source images, iii) for at least one source image different from the reference image, and for at least one pixel of the reference image, a) defining a pattern in the reference image comprising pixels of the reference image, the element being represented in said pattern, b) constructing a map of coordinates that associates coordinates of the pattern in the reference image with the coordinates of the most similar pattern in the source image, c) optionally, filtering of the map of coordinates, and d) generating a corrected image by assigning to a pixel of the corrected image, the position of the pixel of the reference image and a color extracted from the source image point which position is defined by the, optionally filtered, map of coordinates, iv) generating the reduced-blur image by processing, with a multifocus image fusion technique, the corrected image(s) and the reference image.

    USER DISTRIBUTION TO SUB-BANDS IN MULTIPLE ACCESS COMMUNICATIONS SYSTEMS
    205.
    发明申请
    USER DISTRIBUTION TO SUB-BANDS IN MULTIPLE ACCESS COMMUNICATIONS SYSTEMS 有权

    公开(公告)号：US20210021396A1

    公开(公告)日：2021-01-21

    申请号：US17042478

    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

    Abstract: A method of determining a performance metric for a selection of a first user and a second user among a set of candidate users for attribution to a sub-band in a multiple access communications system based on Non-Orthogonal Multiple Access (NOMA), is provided wherein the first user (k1) and the second user (k2) are selected as the pair of candidate users corresponding to an extremum of the ratio between a first term reflecting the total throughput achievable by any pair of the candidate users assigned to the sub-band (s) under consideration, and a second term reflecting the known throughput achieved by that same pair of candidate users over a predetermined preceding period. Implementations include a method of determining a performance metric 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 for a specific sub-band, a first user is selected for that band on the basis of one or more criteria such as user priority. Then a second sub-band user maximizing or minimizing the performance metric.

    Phase reference sharing schemes for continuous-variable quantum cryptography
    206.
    发明授权
    Phase reference sharing schemes for continuous-variable quantum cryptography 有权

    公开(公告)号：US10805075B2

    公开(公告)日：2020-10-13

    申请号：US16098829

    申请日：2017-05-10

    Applicant: INSTITUT MINES-TELECOM

    Inventor： Romain Alleaume ,  Adrien Marie

    IPC: H04L9/08 ,  H04B10/70 ,  H04L12/28 ,  G06F17/11

    Abstract: Systems and associated methods of performing coherent optical communication of quantum information between an emitter A and a distant receiver B are provided, using a local local oscillator. Examples of LLO-based Continuous-Variable Quantum Key Distribution are described. Self-coherent schemes are used, the schemes consisting in deriving both signal and phase reference pulses from the same optical pulse thus ensuring an intrinsic strong signal to reference phase coherence. Different CV-QKD designs implementing various self-coherence phase sharing schemes are described and compared in terms of secret key rate and hardware requirements. Strong phase noise resilience can be obtained with standard telecom equipment such as low cost lasers.

    Methods and devices for sub-block decoding data signals
    209.
    发明授权
    Methods and devices for sub-block decoding data signals 有权

    公开(公告)号：US10560222B2

    公开(公告)日：2020-02-11

    申请号：US15844734

    申请日：2017-12-18

    Applicant: INSTITUT MINES-TELECOM

    Inventor： Asma Mejri ,  Ghaya Rekaya Ben-Othman ,  Mohamed-Achraf Khsiba

    IPC: H04L1/06 ,  H04B7/0417 ,  H04L25/02 ,  H04L25/03 ,  H04B7/08 ,  H04L1/00

    Abstract: Embodiments of the invention provide a decoder for decoding a signal received through a transmission channel in a communication system, said signal comprising a vector of information symbols, said transmission channel being represented by an upper triangular matrix, wherein the decoder comprises: a processing unit (309) configured to determine a set of division parameters depending on at least one division metric derived from components of said upper triangular matrix; a decoding unit (311) configured to divide said upper triangular matrix into two or more sub-matrices using said set of division parameters in accordance with a division of said vector of information symbols into two or more sub-vectors, and to determine at least one estimate of each sub-vector of information symbols by applying a symbol estimation algorithm, wherein the decoder is configured to determine at least one estimate of said vector of information symbols from the estimates of said sub-vectors of information symbols.

    Method for managing packets in a network of information centric networking (ICN) nodes
    210.
    发明授权
    Method for managing packets in a network of information centric networking (ICN) nodes 有权

    公开(公告)号：US10530893B2

    公开(公告)日：2020-01-07

    申请号：US15316632

    申请日：2015-06-08

    Applicant: Institut Mines-Telecom

    Inventor： Dario Rossi ,  Giuseppe Rossini

    IPC: H04L29/08 ,  H04L12/813

    Abstract: The present invention relates to a method for managing packets in a network of Information Centric Networking (ICN) nodes (1, 2a, 2b, 2c, 2d, 2e), the method comprising: —at a first node (1), performing steps of: ∘ Receiving a request (i) for a data packet (C), and if the data packet (C) is stored, responding to the request (i) by forwarding the data packet (C); otherwise ∘ sending to at least one neighboring node (2a, 2b) of the network a request (i′) for meta-data packets (@), a meta-data packet (@) indicating availability of said data packet (C) at a target node; ∘ receiving in response at least one meta-data packet (@), so as to identify at least one target node (2c, 2e) wherein said data packet (C) is available; ∘ forwarding the request (i) for said data packet (C) toward one selected target node (2c); —at a second node (2a, 2b, 2c, 2d, 2e), performing steps of: ∘ Receiving a request (i′) for meta-data packets (@), and if the data packet (C) is stored, responding to the request (i′) by forwarding a meta-data packet (@) indicating availability of said data packet (C) at the second node (2c, 2e); otherwise ∘ forwarding to at least one neighboring node (2c, 2d, 2e) of the network the request (i′) for meta-data packets (@).

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