公开(公告)号：US10164739B2

公开(公告)日：2018-12-25

申请号：US15626327

申请日：2017-06-19

Applicant: INSTITUT MINES-TELECOM

Inventor： Ghaya Rekaya Ben-Othman ,  Yves Jaouen ,  El-Mehdi Amhoud

IPC: H04L1/00 ,  H04B10/2581 ,  H04B10/516 ,  H04J14/04 ,  H04L5/00

Abstract: Embodiments of the invention provide an optical transmitter configured to transmit a data sequence over at least two spatial propagation modes through an optical transmission channel in a multi-mode optical fiber transmission system, the transmission system being associated with a predefined value of a mode-dependent loss, wherein the optical transmitter comprises: a forward error correcting code encoder (22) configured to encode said data sequence into a codeword vector by applying at least one error correcting code; a modulator (23) configured to determine a set of modulated symbols by applying a modulation scheme to said codeword vector; and a Space-Time encoder (24) configured to determine a codeword matrix by applying a Space-Time code to said set of modulated symbols.

公开(公告)号：US10069198B2

公开(公告)日：2018-09-04

申请号：US14894895

申请日：2014-05-30

Applicant: Institut Mines Telecom/Telecom Bretagne

Inventor： Jean-Philippe Coupez

IPC: H01Q1/36 ,  H01Q9/04

Abstract: The invention relates to a compact multi-level antenna including: a ground plane; a radiating element including n≥2 portions extending in n≥2 parallel planes in a planar pattern, the planes defining a volume above the ground plane, the radiating element including a first end connected to the ground plane and a second end ending with an open circuit.

公开(公告)号：US20180191532A1

公开(公告)日：2018-07-05

申请号：US15580096

申请日：2016-06-07

Applicant: INSTITUT MINES-TELECOM

Inventor： Asma MEJRI ,  Ghaya REKAYA-BEN OTHMAN

IPC: H04L25/03

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.

公开(公告)号：US20180164402A1

公开(公告)日：2018-06-14

申请号：US15735734

申请日：2016-06-21

Applicant: INSTITUT MINES-TELECOM

Inventor： Alexandre VERVISCH-PICOIS ,  Nei SAMAMA

IPC: G01S5/10 ,  G01S1/04 ,  G01S1/20

CPC classification number: G01S5/10 ,  G01S1/042 ,  G01S1/20

Abstract: A method for locating at least one receiver in a positioning system. The system includes: at least two generators, each generator emitting, on a single carrier, at least two signals that each have a different code, and a receiver configured to detect the signals emitted by the generators. In the method: the receiver measures, for each generator, the phase difference between both signals emitted by the generator, and at least one geometric size, representing the position of the receiver in relation to the generators, is calculated on the basis of the measurements of the phase difference in order to locate the receiver in the positioning system.

公开(公告)号：US20180144545A1

公开(公告)日：2018-05-24

申请号：US15571597

申请日：2016-05-02

Applicant: INSTITUT MINES TELECOM

Inventor： Helene LEGRAND ,  Tamy BOUBEKEUR

IPC: G06T17/20 ,  G06T17/00

CPC classification number: G06T17/205 ,  G06T17/005

Abstract: The present invention relates to a method of simplifying a geometry model, the method comprises: determination (607) of an integral error rating QiS defined as being a function of a sum of the error measures associated with the points of the plurality having a lower associated Morton code than the Morton code associated with the current point; determination (614) if a given set of points of the plurality can be simplified by a new point, the points of the given set all being the points of the plurality having a Morton code associated with one and the same prefix of given length, as a function at least of a difference between: —the integral error measure QlasS determined for the point of the given set having the largest Morton code (las); and—the integral error measure Qini-1S determined for the point of the plurality having an immediately lower Morton code (ini−1) than the smallest Morton code out of the Morton codes associated with the points of the set.

公开(公告)号：US20180098242A1

公开(公告)日：2018-04-05

申请号：US15548747

申请日：2015-04-24

Applicant: EXPWAY ,  INSTITUT MINES-TELECOM

Inventor： Cédric THIENOT ,  Jean LE FEUVRE

IPC: H04W28/04 ,  H04L1/00 ,  H04L29/06 ,  H04W28/06

CPC classification number: H04W28/04 ,  H04L1/0083 ,  H04L65/4076 ,  H04L65/604 ,  H04L65/607 ,  H04L65/608 ,  H04L65/80 ,  H04W28/065

Abstract: A method of retrieving a file, the method including: receiving a portion of a content transmitted in accordance with a multicast protocol via a file delivery service, wherein the content includes data fragments forming a file; receiving a file delivery table (FDT) from the file delivery service; reading in the file delivery table location attributes indicating locations of the data fragments in the file; and determining from the location attributes locations of non-corrupted data fragments in the content portion.

公开(公告)号：US20180051212A1

公开(公告)日：2018-02-22

申请号：US15555732

申请日：2016-02-26

Applicant: INSTITUT MINES TELECOM ,  EYES TRIPLE SHUT

Inventor： Jean-Louis De Bougrenet De La Tocnaye ,  Laurent Dupont ,  Kedar Sathaye ,  SumanKalyan Manna

IPC: C09K19/58 ,  C09K19/60 ,  G02F1/137 ,  G02F1/1347

CPC classification number: C09K19/586 ,  C09K19/60 ,  G02F1/13471 ,  G02F1/13725 ,  G02F1/13737

Abstract: A material is proposed for making an electro-optical shutter device. The material includes a host nematic liquid crystal, at least one guest chiral dopant and one guest black dichroic dye. The birefringence (Δn) of the host nematic liquid crystal is greater than 0.20. The concentration of the at least one chiral dopant is adjusted so that the material has a pitch in the range of 500 nm to 800 nm. The concentration of the guest black dichroic dye ranges from 2% to 4% by weight of the material. The dichroic ratio of the guest black dichroic dye is greater than or equal to 8.

公开(公告)号：US20170256959A1

公开(公告)日：2017-09-07

申请号：US15314713

申请日：2015-06-02

Applicant: Institut MINES TELECOM

Inventor： Fadi Abi Abdallah ,  Maurice Gagnaire

IPC: H02J7/00 ,  G01R19/25 ,  G01R19/00

CPC classification number: H02J7/007 ,  G01R19/0084 ,  G01R19/2513 ,  H02J7/0027 ,  H02J2003/007 ,  H02J2007/0096 ,  Y02E40/76 ,  Y02E60/76 ,  Y02T10/7055 ,  Y04S10/545 ,  Y04S40/22

Abstract: A method for determining voltages and/or power available in an electrical recharging network that includes at least one voltage generator and at least one recharging terminal i corresponding, at a first instant t1, to a predetermined reference impedance zii. At an instant t2, the method implements at least one iteration of the following acts: estimating a changing of the reference impedance zii into a modified impedance z′ii; updating a voltage of the recharging terminal i by determining a modified inverted loop impedance matrix Zloop_M−1 as a function of a reference inverted loop impedance matrix Zloop_R−1 and of a difference between the modified impedance z′ii and the reference impedance zii, delivering a voltage U′i; and verifying/updating a value of power available at the recharging terminal i as a function of a voltage U′i, a maximum power of the generator and/or a threshold voltage delivering, an available power Pdisp_i.

公开(公告)号：US20170221111A1

公开(公告)日：2017-08-03

申请号：US15419631

申请日：2017-01-30

Applicant: INSTITUT MINES-TELECOM

Inventor： Mostafa SALEHI ,  Saeedreza SHEHNEPOOR ,  Reza FARAHBAKHSH ,  Noel CRESPI

IPC: G06Q30/02 ,  G06Q30/00

CPC classification number: G06Q30/0282 ,  G06Q10/10 ,  G06Q30/0185

Abstract: A method for detecting if an online review written by a user on a website of a telecommunications network is a spam, using at least one previously-labeled review, a review dataset comprising at least one review to be analyzed, and a spam feature list listing different features of spam reviews, method wherein: a) a weight is computed for each spam feature of the spam feature list, corresponding to the importance of the spam feature in the detection of spam reviews, and based at least on the features of said at least one previously-labeled review, and b) a probability of being a spam for a review under analysis in the review dataset is computed by using at least the weights of the spam features computed at step a) and a comparison between the features of said review under analysis and the ones of at least one review previously-labeled as spam.

公开(公告)号：US20160359378A1

公开(公告)日：2016-12-08

申请号：US15119043

申请日：2015-02-12

Applicant: INSTITUT MINES TELECOM

Inventor： Veronique Kuhn ,  Fabrice Seguin ,  Cyril Lahuec ,  Christian Person

IPC: H02J50/27 ,  G01D11/00 ,  H02M7/10

CPC classification number: H02J50/27 ,  G01D11/00 ,  H02J7/025 ,  H02J17/00 ,  H02M1/126 ,  H02M7/10

Abstract: A device for converting radio-frequency energy into DC current, receiving at least one radio-frequency signal at input and generating at output a DC current capable of powering at least one load. The device has at least two conversion stages, each including: a radio-frequency filtering module, connected to a first input node of the conversion stage, configured to filter the radio-frequency signal; a voltage shift module, connected between a second input node of the conversion stage, the radio-frequency filtering module and an intermediate node of the conversion stage, configured to shift a voltage present at the first input node to the intermediate node; a voltage rectifier module, connected between the intermediate note, the second input node and an output node of the conversion stage, configured to rectify the voltage of the intermediate node and deliver a rectified voltage on the output node.

Abstract translation: 一种用于将射频能量转换为直流电流的装置，在输入端接收至少一个射频信号并在输出端产生能够为至少一个负载供电的直流电流。 该装置具有至少两个转换级，每个转换级包括：连接到转换级的第一输入节点的射频滤波模块，用于对射频信号进行滤波; 连接在所述转换级的第二输入节点，所述射频滤波模块和所述转换级的中间节点之间的电压移位模块，被配置为将存在于所述第一输入节点处的电压移位到所述中间节点; 连接在所述中间音符，所述第二输入节点和所述转换级的输出节点之间的电压整流器模块，被配置为对所述中间节点的电压进行整流并在所述输出节点上传送整流电压。