公开(公告)号：US11210367B2

公开(公告)日：2021-12-28

申请号：US16060947

申请日：2016-12-08

Applicant: INSTITUT MINES-TELECOM

Inventor： Olivier Rioul ,  Sylvain Guilley

IPC: G06F17/18 ,  H04L9/00 ,  G06F17/16 ,  G06F21/55 ,  G06N7/00 ,  H04L9/36

Abstract: A secret value estimation device is provided for determining an estimate of at least one secret value used by at least one cryptographic mechanism implemented in a cryptographic system from a statistical distribution of a set of multivariate leakage traces determined by a leakage traces statistical distribution unit. Each leakage trace being a vector comprises a plurality of random values, the number of said random values being an integer number superior or equal to 1, the statistical distribution being a function of parametric linear combinations of a set of leakage model basis vectors representing a multivariate leakage model, the number of basis vectors being an integer number superior or equal to 1, and the linear combinations being defined by a matrix of real values.

公开(公告)号：US20210376929A1

公开(公告)日：2021-12-02

申请号：US17050351

申请日：2019-04-10

Applicant: INSTITUT MINES TELECOM

Inventor： Ghaya REKAYA ,  Akram ABOUSEIF ,  Yves JAOUEN

IPC: H04B10/2581 ,  H04B10/2507 ,  H04B10/50 ,  H04B10/516 ,  H04B10/60 ,  H04J14/02

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, each core being associated with one or more core parameters, wherein the optical transmission system comprises: a scrambling configuration device configured to determine a scrambling function depending on one or more of the core parameters associated with the two or more cores, and at least one scrambling device arranged in the optical fiber transmission channel for scrambling the two or more cores, each of the at least one scrambling device being configured to determine permuted cores by applying the scrambling function to the two or more cores and to redistribute the optical signals according to the permuted cores.

公开(公告)号：US20210376470A1

公开(公告)日：2021-12-02

申请号：US17255407

申请日：2019-06-27

Applicant: INSTITUT MINES TELECOM - IMT ATLANTIQUE - BRETAGNE - PAYS DE LA LOIRE

Inventor： Jean-Philippe COUPEZ

IPC: H01Q5/371 ,  H01Q21/30 ,  H01Q9/40

Abstract: An antenna arrangement that is designed to match, or approach based on a cost function, a specification includes a list of a plurality of predefined frequencies and, possibly a list of predefined bandwidths at a matching level. The antenna arrangement is designed using a plurality of predefined elements comprising a primary conductive element defined as a main trunk and a combination of secondary conductive elements selected from trunks, branches or leaves. The primary conductive element and the secondary conductive elements are defined by design parameters that comprise a susceptance that is a function of a geometry, a form factor, a main dimension, an orientation of the secondary conductive elements relative to the primary conductive element and a position of the secondary conductive elements on the primary conductive element. The antenna arrangement may be further defined to match a predefined form factor.

公开(公告)号：USD935438S1

公开(公告)日：2021-11-09

申请号：US35509443

申请日：2020-05-07

Applicant: INSTITUT MINES TELECOM

Designer： Patrick Chateau ,  Arthur Godet

公开(公告)号：US11115377B2

公开(公告)日：2021-09-07

申请号：US15550213

申请日：2016-02-12

Applicant: KERLINK ,  INSTITUT MINES-TELECOM

Inventor： Yannick Delibie ,  Laurent Toutain ,  Alexander Pelov

IPC: G06F15/16 ,  H04L29/12 ,  H04L29/08

Abstract: A method for resolving an IP address, includes a step of receiving an address resolution request, the request including a datum representative of a MAC address; a step of looking up, within a data structure, an IP address, depending on the datum representative of a MAC address; and a step of transmitting said IP address.

公开(公告)号：US20210250094A1

公开(公告)日：2021-08-12

申请号：US17049023

申请日：2019-04-10

Applicant: INSTITUT MINES-TELECOM

Inventor： Ghaya REKAYA ,  Akram ABOUSEIF ,  Yves JAOUEN

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

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：US20210173740A1

公开(公告)日：2021-06-10

申请号：US17045980

申请日：2019-04-10

Applicant: INSTITUT MINES TELECOM

Inventor： Hana BACCOUCH ,  Nadia BOUKHATEM

IPC: G06F11/10 ,  G06F11/07 ,  G06F11/30 ,  G06F3/06

Abstract: A method for coding (k, r) data and a method for reconstructing data are provided. The coding method includes steps consisting in: dividing an initial datum a into k data blocks ai; grouping the k data blocks into r−1 subsets Sj of data blocks; generating, for each subset Sj, a linear function gj(a) defined as a linear combination of the data blocks assigned to said subset Sj; and generating r parity functions comprising a primary parity function f0(a) as a linear combination of the k data blocks ai, and r−1 secondary parity functions, each secondary parity function fj(a) being defined as the sum of the primary parity function f0(a) and of a linear function gj(a).

公开(公告)号：US20210058155A1

公开(公告)日：2021-02-25

申请号：US17050358

申请日：2019-04-10

Applicant: INSTITUT MINES-TELECOM

Inventor： Ghaya REKAYA ,  Akram ABOUSEIF ,  Yves JAOUEN

IPC: H04B10/2525 ,  H04B10/50 ,  H04B10/2581

Abstract: Embodiments provide an optical transmission system comprising an optical transmitter configured to transmit data over an optical fiber transmission channel comprising a multi-core fiber, the data being carried by one or more optical signals propagating along the multi-core fiber according to a plurality of cores, each core among the plurality of cores being associated with one or more core parameters, wherein the optical transmission system comprises a core selection device configured to select a set of transmit cores among the plurality of cores according to a transmit core selection criterion, the transmit core selection criterion being related to the one or more core parameters, the optical transmitter being configured to transmit the data over the set of transmit cores.

公开(公告)号：US10833801B2

公开(公告)日：2020-11-10

申请号：US15568177

申请日：2016-04-27

Applicant: INSTITUT MINES-TELECOM

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

IPC: H04L1/00 ,  H04L1/06 ,  H03M13/00 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/08

Abstract: There is provided a method of generating a space-time block code (STBC) for encoding a digital data sequence comprising a set of independent symbols to be transmitted through a transmission channel in a communication system, the space-time block code being represented by a set of linear dispersion matrices in a linear dispersion representation, each linear dispersion matrix comprising components having complex values, the method comprising, generating at least some of the linear dispersion matrices depending on component-wise conditions related to a set of selected pairs of the linear dispersion matrices, each pair comprising a first linear dispersion matrix and a second linear dispersion matrix, said component-wise conditions comprising a component-wise condition between the components of the first linear dispersion matrix and the components of the second linear dispersion matrix.

公开(公告)号：US10812299B2

公开(公告)日：2020-10-20

申请号：US15580096

申请日：2016-06-07

Applicant: INSTITUT MINES-TELECOM

Inventor： Asma Mejri ,  Ghaya Rekaya-Ben Othman

IPC: H04L25/03 ,  H03M13/39

Abstract: There is provided a decoder for decoding a data signal received through a transmission channel in a communication system, the decoder (310) comprising a symbol estimation unit (311) configured to determine estimated symbols representative of the transmitted symbols carried by the received signal, the estimated symbols being determined from nodes of a decoding tree based on a weight metric associated with each of the node. The decoder further comprises a termination alarm monitoring unit (312) for monitoring a termination alarm depending on the current decoding computation complexity, the termination alarm being associated with a metric parameter, the symbol estimation unit being configured to reduce the weight metric of each node of the decoding tree by a quantity corresponding to a function of the metric parameter associated with the termination alarm, in response to the triggering of the termination alarm.