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公开(公告)号：US20200209643A1
公开(公告)日：2020-07-02
申请号：US16634098
申请日：2018-07-23
Applicant: INSTITUT MINES TELECOM
Inventor： Kevin HEGGARTY , Julien LE MEUR
Abstract: The present invention relates to an optical device for generating a diffracted image on a support (S), said device comprising a diffractive optical element (5) arranged to diffract an optical beam, in order to generate a diffraction image. The device further comprises an optical power mirror (7.1; 7.2; 7.3; 7.4; 7.5), the mirror being placed with respect to the diffractive optical element so as to project the diffraction figure towards the support to obtain a magnified version of the diffracted image.
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公开(公告)号：US20200186912A1
公开(公告)日：2020-06-11
申请号：US16462691
申请日：2017-11-20
Applicant: Raphael BLOUET , INSTITUT MINES TELECOM
Inventor： Slim ESSID , Raphael BLOUET
Abstract: The invention relates to data processing for sound playing on a sound playing device (DIS), headset or ear bud type, portable by a user in an environment (ENV). The device comprises at least one speaker (HP), at least one microphone (MIC), and a connection to a processing circuit comprising: An input interface (IN) for receiving signals coming at least from the microphone; A processing unit (PROC, MEM) for reading at least one audio content to play on the speaker; and An output interface (OUT) for delivering at least the audio signals to be played by the speaker. The processing unit is arranged for: a) Analyzing the signals coming from the microphone for identifying sounds coming from the environment and corresponding to predetermined classes of target sounds; b) Selecting at least one identified sound, according to a user preference criterion; and c) Building said audio signals to be played by the speaker, by a selected mixing of the audio content and the selected sound.
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33.发明申请公开(公告)号：US20190354711A1
公开(公告)日：2019-11-21
申请号：US16463363
申请日：2017-11-24
Applicant: INSTITUT MINES-TELECOM / TELECOM BRETAGNE
Inventor： Gouenou COATRIEUX , Javier FRANCO CONTRERAS
Abstract: The present invention proposes a method and associated device for inserting tuples into a watermarked database without having to remove the watermarking from all or a part of the database before inserting each tuple. To achieve this, the invention consists of storing, in watermarking metadata, the type of group or class wherein the tuples of the database have been distributed during the watermarking of the database. For each type of group or class, a rule defining a modification of the value of at least one property on which the watermarking is carried is also stored in the watermarking metadata, depending on an insertion force parameter. Each tuple to be inserted is watermarked by applying the modification rule according to the group to which the tuple belongs. Due to the rule used, the insertion of the watermarked tuple does not modify the type of group it belongs to.
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公开(公告)号：US20190199523A1
公开(公告)日：2019-06-27
申请号：US16098829
申请日：2017-05-10
Applicant: INSTITUT MINES-TELECOM
Inventor： Romain ALLEAUME , Adrien MARIE
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.
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公开(公告)号：US10291438B2
公开(公告)日：2019-05-14
申请号：US15476009
申请日：2017-03-31
Applicant: INSTITUT MINES-TELECOM
Inventor： Asma Mejri , Mohamed-Achraf Khsiba , Ghaya Rekaya Ben-Othman
IPC: H04L25/02 , H04L25/03 , H04L27/06 , H04L1/06 , H04B7/0413
Abstract: An exemplary decoder is provided for decoding a signal received through a transmission channel in a communication system. The exemplary decoder comprises a transformation unit configured to determine a set of auxiliary channel matrices, each auxiliary channel matrix being determined by performing a linear combination of at least one of the column vectors of the channel matrix; a decomposition unit configured to determine a decomposition of each auxiliary channel matrix into an upper triangular matrix and an orthogonal matrix; a matrix selection unit configured to select at least one auxiliary channel matrix among the set of auxiliary channel matrices depending on a selection criterion related to the components of the upper triangular matrices. The decoder determines at least one estimate of vector of information symbols from an auxiliary signal and from the upper triangular matrix corresponding to a selected auxiliary channel matrix by applying a decoding algorithm.
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Patent Agency Ranking
36.发明授权公开(公告)号：US10193367B2
公开(公告)日：2019-01-29
申请号：US15314713
申请日：2015-06-02
Applicant: Institut MINES TELECOM
Inventor： Fadi Abi Abdallah , Maurice Gagnaire
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.
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37.发明申请公开(公告)号：US20180376120A1
公开(公告)日：2018-12-27
申请号：US16063441
申请日：2016-12-09
Applicant: B<>COM , UNIVERSITE RENNES 1 , INSTITUT MINES TELECOM
Inventor： Cambodge Bist , Remi Cozot , Gerard Madec
Abstract: A method for processing a digital image for rendering on a display. The image includes image elements associated with color information represented in a colorimetric space having a luminance and chrominance components. The luminance component has a value in a first predetermined interval. The display can render values of luminance components included in a second predetermined interval, of greater length than the first interval. The method includes: determining information representative of image brightness perceived by an observer, based on the values of the first luminance component; calculating an expansion exponent as a function of the determined brightness information; transforming the first luminance components into second luminance components, including calculating an intermediate luminance value by applying the calculated expansion exponent to the first luminance component value and multiplying the intermediate value by the length of the second interval. The expansion exponent is a decreasing function of the determined brightness information.
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公开(公告)号：US20180241591A1
公开(公告)日：2018-08-23
申请号：US15550922
申请日：2016-02-15
Applicant: INSTITUT MINES TELECOM
Inventor： Ghaya REKAYA-BEN OTHMAN , Asma MEJRI
Abstract: A method, device, and a computer program are provided to decode a signal received through a transmission channel in a communication system, the received signal being represented by a signal vector. The method comprises: calculating an initial estimate of a transmitted symbol vector carried by the received signal vector; calculating a bound parameter (201) from a linear function of the initial estimate of the transmitted symbol vector, the linear function being defined by a slope coefficient and an intercept coefficient, the method further comprising: determining estimated symbols representative of the transmitted symbols carried by the received signal, the estimated symbols being determined from a set of candidate lattice points, each lattice point comprising a set of components, each component of a candidate lattice point being searched in a search interval (203), the search interval having at least one search interval bound computed from the bound parameter; determining (205) the estimated symbols from the closest lattice point to the received signal vector among the candidate lattice points.
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39.发明申请公开(公告)号：US20180191134A1
公开(公告)日：2018-07-05
申请号：US15741230
申请日：2016-06-29
Applicant: INSTITUT MINES-TELECOM , University of New Mexico
Inventor： Merek Osinski , Frédéric Grillot
CPC classification number: H01S5/1028 , H01S5/021 , H01S5/0215 , H01S5/0224 , H01S5/02248 , H01S5/0228 , H01S5/0612 , H01S5/068 , H01S5/101 , H01S5/1032 , H01S5/125 , H01S5/142 , H01S5/34313 , H01S5/3434
Abstract: The invention concerns a wavelength tunable semiconductor laser comprising a laser gain section (510) optically coupled to an underlying optical waveguide (520). According to an embodiment of the invention, a first and a second passive microring resonators (530, 560) having a whistle geometry, are arranged on both sides of the laser gain section and evanescently coupled with the optical waveguide (520). Highly reflective broadband mirrors (541, 571) are provided at the free ends of optical waveguide branches (240, 270) tangentially connected to the microring resonators. The first and second passive microrings resonators provide an optical feedback to the laser gain section and allow to select the desired wavelength. The laser structure can be implemented according to a III-V/Si technology.
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公开(公告)号：US09941568B2
公开(公告)日：2018-04-10
申请号：US15023113
申请日：2014-09-19
Applicant: INSTITUT MINES TELECOM/TELECOM BRETAGNE
Inventor： Jean-Philippe Coupez , Sylvain Chenu
CPC classification number: H01P5/107 , H01P5/08 , H01P5/087 , H05K1/0243
Abstract: The invention relates to a transition device between a printed transmission line on a dielectric substrate and a rectangular waveguide including a front face forming an inlet of the waveguide, a rear face parallel to the front face and forming an outlet of the waveguide, a lower face, an upper face parallel to the lower face, the upper and lower faces extending between the front and rear faces, the waveguide being a block of dielectric material whereof the faces are fully metallized except for the front face and the rear face, the transition device including: a three-dimensional cavity formed in the volume of the waveguide between the inlet of the waveguide, further forming the inlet of the cavity, and the rear face widening, the cavity being at an inlet height of the lower face of the waveguide and ending at a distance from the inlet of the cavity at an outlet height greater than the inlet height; an electrical connection extending from the transmission line along the front face of the waveguide up to the inlet of the three-dimensional cavity.
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