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公开(公告)号：US10396847B2
公开(公告)日：2019-08-27
申请号：US15620208
申请日：2017-06-12
Applicant: INSTITUT MINES-TELECOM/TELECOM BRETAGNE
Inventor： Jérémy Nadal , Charbel Abdel Nour , Amer Baghdadi
Abstract: A receiver for Filter Bank Multicarrier frequency spread signals such as FBMC, FBMC/OQAM, OFDM, comprises a linear phase rotation module adapted to introduce a linear phase rotation to a received time domain signal, a discrete Fourier transform and a Finite Impulse response digital filter. The coefficients of the digital filter define a shift of the frequency response of the prototype filter of the receiver, and the coefficients of the digital filter are fixed so as to compensate the linear phase rotation introduced by the filter. The frequency shift introduced may be equal to the reciprocal of a power of two of the modulation sub carrier spacing.
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72.发明授权公开(公告)号：US10320149B2
公开(公告)日：2019-06-11
申请号：US15741230
申请日：2016-06-29
Applicant: INSTITUT MINES-TELECOM , UNIVERSITY OF NEW MEXICO
Inventor： Marek Osinski , Frédéric Grillot
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：US10284334B2
公开(公告)日：2019-05-07
申请号：US15475400
申请日：2017-03-31
Applicant: INSTITUT MINES-TELECOM
Inventor： Mohamed-Achraf Khsiba , Ghaya Rekaya Ben-Othman
IPC: H04L5/00 , H04L1/00 , H04L25/03 , H04L25/02 , H04B7/0413
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 a channel matrix, wherein the decoder comprises: an initial radius determination unit (307) configured to determine an initial radius; a symbol estimation unit (309) configured to iteratively determine a current radius to search a lattice point inside a current spherical region defined by said current radius, said current radius being initially set to said initial radius, said symbol estimation unit (309) being configured, for each lattice point found in said current spherical region, to store said lattice point in association with a metric, said symbol estimation unit (309) being further configured to update said current radius using a linear function, said linear function having a slope parameter strictly inferior to one, The decoder being configured to determine at least one estimate of said vector of information symbols from at least one of the lattice points found by the symbol estimation unit (309).
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公开(公告)号：US10230547B2
公开(公告)日：2019-03-12
申请号：US15492028
申请日：2017-04-20
Applicant: INSTITUT MINES-TELECOM / TELECOM BRETAGNE
Inventor： Jérémy Nadal , Charbel Abdel Nour , Amer Baghdadi
Abstract: A method of designing a digital filter for example for use in an FBMC/OQAM telecommunications system, with a target overlapping factor and meeting a specified signal to interference ratio is described, whereby a candidate filter design defined by an impulse response, satisfying the Nyquist criterion and having an overlapping factor higher than the target is selected, and the time and frequency coefficients of its impulse response inverted to define a new filter design; andtruncating the impulse response defining said new filter design to the minimum number of coefficients achieving said specified signal to interference ratio.
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公开(公告)号：US10217469B2
公开(公告)日：2019-02-26
申请号：US14769998
申请日：2014-02-25
Applicant: INSTITUT MINES TELECOM
Inventor： Sebastien Fenet , Yves Grenier , Richard Gael
Abstract: The invention concerns a method for generating a signature of a musical audio signal of a given duration, the method comprising the following steps: —modelling (104) the musical audio signal to obtain, for each frequency band of a set of n frequency bands, a diagram representing the energy of the audio signal for the frequency band, on the basis of the time during said given duration; —determining (103) musical transition times tk of the audio signal during the given duration; —associating (105) each musical transition time tk with an item of local information comprising a vector of n values representative, respectively, of the energy of the audio signal in each of the n diagrams obtained between musical transition time tk and a subsequent musical transition time tk+1 and/or a vector of n values representative, respectively, of the energy of the audio signal in each of the n diagrams obtained between musical transition time tk and a preceding musical transition time tk−1; —determining (106), on the basis of the local information associated with each musical transition time tk, a key associated with the musical transition time, the determined keys forming a first set of keys of the audio signal; —generating (107) a signature of the musical audio signal comprising pairs of keys from the first set of keys and associated musical transition times tk.
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Patent Agency Ranking
76.发明申请公开(公告)号：US20180375328A1
公开(公告)日：2018-12-27
申请号：US15781613
申请日：2016-12-06
Applicant: ELECTRICITE DE FRANCE , INSTITUT MINES TELECOM
Inventor： Melaine Rousselle , Philippe Forestier , Sawsan Al Zahr
Abstract: A method for managing a group of electrical energy consuming devices allows reducing the electrical consumption cost for some devices when the supply of electricity to said devices can be deferred. The method is particularly suitable for flexible power supply devices, and, in particular, when at least one of the devices is an electric vehicle that is connected in order to charge batteries of said vehicle.
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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.
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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
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.
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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.
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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
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.
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