Patents by Inventor Jean-Baptiste Dore

Jean-Baptiste Dore has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10979275
    Abstract: The present invention relates to a method for adapting a link using a polar-modulation (PQAM) constellation. It applies in particular to the communications in the sub-THz band, in which the oscillator of the receiver has phase fluctuations. In a PQAM-modulation constellation, the modulation symbols are distributed on concentric circles equidistant in the complex plane, each circle including the same number of symbols, the angular distribution of the symbols on a circle being uniform and identical regardless of the circle. The adaptation of the link is carried out by taking into account the thermal noise as well as the phase noise.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: April 13, 2021
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Simon Bicais, Jean-Baptiste Dore, Jose-Luis Gonzales Jimenez
  • Publication number: 20200351141
    Abstract: The present invention relates to a method for adapting a link using a polar-modulation (PQAM) constellation. It applies in particular to the communications in the sub-THz band, in which the oscillator of the receiver has phase fluctuations. In a PQAM-modulation constellation, the modulation symbols are distributed on concentric circles equidistant in the complex plane, each circle including the same number of symbols, the angular distribution of the symbols on a circle being uniform and identical regardless of the circle. The adaptation of the link is carried out by taking into account the thermal noise as well as the phase noise.
    Type: Application
    Filed: March 13, 2020
    Publication date: November 5, 2020
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Simon BICAIS, Jean-Baptiste DORE, Jose-Luis GONZALES JIMENEZ
  • Publication number: 20200259544
    Abstract: A detection method for a MIMO system receiver in which a linear detection is carried out in order to provide an equalised vector. This equalised vector is represented in a reduced basis obtained from the reduction of the channel matrix. It undergoes an iterative noise cancellation process in the representation according to the reduced basis. Upon each iteration, a search is carried out for the component of the equalised vector in the reduced basis located the furthest from an area unperturbed by noise surrounding the product constellation with a tolerance margin, and the point representative of the equalised vector of this area by subtracting therefrom a noise vector in the direction of this component, the module whereof is equal to a fraction of the tolerance margin. The iterative cancellation converges when the equalised vector belongs to the area unperturbed by noise.
    Type: Application
    Filed: February 4, 2020
    Publication date: August 13, 2020
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: David DEMMER, Jean-Baptiste Dore
  • Patent number: 10382240
    Abstract: A transmitter of an FBMC-MIMO system in which, for each FBMC-OQAM modulator associated with a transmission antenna, the symbols of a block to be transmitted are grouped in pairs, the input symbols in a pair being combined to output first and second combined symbols, the combined symbols being input to the FBMC-OQAM modulator. The invention also relates to a receiver including an FBMC-OQAM demodulator and an ML detector from the observables obtained, for each reception antenna. The used ML detection allows for not being affected by intrinsic interference and obtaining a high degree of diversity without increasing the number of antennas.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: August 13, 2019
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Jean-Baptiste Dore
  • Patent number: 10374858
    Abstract: A transceiving system using a joined modulation alphabet A having a size M the symbols of which are distributed on a plurality N of orthogonal dimensions, the symbols carried by a dimension belonging to a linear sub-alphabet An having a size P, with M=NP. The transmitter performs a turbocoding of a block of information bits, the code words provided by the turbocoder being mapped to symbols of the joined modulation alphabet before modulating the signal to be transmitted. The receiver performs turbodecoding from the projection of the symbols received on the orthogonal dimensions of the alphabet.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: August 6, 2019
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Yoann Roth, Vincent Berg, Jean-Baptiste Dore, Laurent Ros
  • Patent number: 10237869
    Abstract: A method of remote data transmission over a frequency spectrum divided into a plurality of different elementary channels, between a first device and a second device, including the transmission by the first device of a first signal including a succession of first data by modulation of the first data simultaneously over a number of elementary channels of the plurality of elementary channels and the transmission of a second signal representative of a plan of use of the plurality of elementary channels including a succession of second data at least by modulation of all the second data over a single elementary channel from among said number of elementary channels.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: March 19, 2019
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Dominique Noguet, Jean-Baptiste Dore
  • Patent number: 10158459
    Abstract: A method for multiple access to a frequency band of a communication channel of a communication network with carrier sensing and collision avoidance, including a division of the frequency band into a set of request-to-send sub-bands dedicated to the transmission, by source nodes to a destination node, of request-to-send messages for communicating data on the frequency band is provided. The method includes an evaluation of a communication channel load, and, as a function of the result of the evaluation, a re-division of the frequency band to modify the number of sub-bands of the set of request-to-send sub-bands.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: December 18, 2018
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Baher Mawlawi, Jean-Baptiste Dore
  • Patent number: 10148479
    Abstract: An FBMC transmission/reception system wherein a phase pre-compensation and an amplitude pre-compensation are done on a block of modulation symbols. The symbol block thus compensated is segmented into a number M of sub-blocks equal to the number of carriers of an FBMC modulator. The sub-blocks are divided into vectors with size N/2 and padded with isolation zeroes to form padded vectors with size N. Each of these padded M is processed by an IFFT to give time sequences to which cyclic prefixes and suffixes are added. The resulting cyclic sequences are then input to the M input channels of the FBMC modulator. The reception symbols can be recovered at the receiver by a simple FFT with size NM/2.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: December 4, 2018
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Jean-Baptiste Dore
  • Publication number: 20180262379
    Abstract: A transceiving system using a joined modulation alphabet A having a size M the symbols of which are distributed on a plurality N of orthogonal dimensions, the symbols carried by a dimension belonging to a linear sub-alphabet An having a size P, with M=NP. The transmitter performs a turbocoding of a block of information bits, the code words provided by the turbocoder being mapped to symbols of the joined modulation alphabet before modulating the signal to be transmitted. The receiver performs turbodecoding from the projection of the symbols received on the orthogonal dimensions of the alphabet.
    Type: Application
    Filed: March 7, 2018
    Publication date: September 13, 2018
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Yoann ROTH, Vincent BERG, Jean-Baptiste DORE, Laurent ROS
  • Publication number: 20180254937
    Abstract: A transmitter of an FBMC-MIMO system in which, for each FBMC-OQAM modulator associated with a transmission antenna, the symbols of a block to be transmitted are grouped in pairs, the input symbols in a pair being combined to output first and second combined symbols, the combined symbols being input to the FBMC-OQAM modulator. The invention also relates to a receiver including an FBMC-OQAM demodulator (4101, . . . ,410NR) and an ML detector (450k) from the observables obtained, for each reception antenna. The used ML detection allows for not being affected by intrinsic interference and obtaining a high degree of diversity without increasing the number of antennas.
    Type: Application
    Filed: March 1, 2018
    Publication date: September 6, 2018
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Jean-Baptiste DORE
  • Patent number: 9967060
    Abstract: A transmission method and an FBMC transmitter to transmit at least a first and a second block of symbols (X0, X1), each symbols block including a temporal sequence of L vectors with predetermined size N. It uses a first and a second FBMC modulation channel, each FBMC modulation channel being associated with an antenna. During a first use of the channel, the vectors of the first block and the vectors of the second block are input to the first and to the second FBMC modulation channels respectively, in the order of the temporal sequence. During a second use of the channel, the vectors of the first and second blocks are multiplied by a factor jL 1 respectively and ?(jL 1) input to the second and to the first FBMC modulation channels respectively, in the inverse order of the temporal sequence.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: May 8, 2018
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Jean-Baptiste Dore
  • Patent number: 9955504
    Abstract: A method for multiple access to a frequency band of a communication channel of a communication network with carrier sense and collision avoidance, the said frequency band being divided into a set of sub-bands includes, at a source node, detecting the availability of the communication channel and transmitting to a destination node a request message for authorization to send data on the communication channel sent over one or more sub-bands, and, at the destination node, detecting simultaneous request messages for authorization to send data on the communication channel transmitted by a plurality of source nodes over a plurality of sub-bands. A message is transmitted authorizing the sending of data on the communication channel by at least one source node among the said plurality of source nodes.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: April 24, 2018
    Assignee: Commissariat à l'énergie atomique et aux énergies alternatives
    Inventors: Jean-Baptiste Dore, Baher Mawlawi
  • Publication number: 20180083814
    Abstract: An FBMC transmission/reception system wherein a phase pre-compensation and an amplitude pre-compensation are done on a block of modulation symbols. The symbol block thus compensated is segmented into a number M of sub-blocks equal to the number of carriers of an FBMC modulator. The sub-blocks are divided into vectors with size N/2 and padded with isolation zeroes to form padded vectors with size N. Each of these padded M is processed by an IFFT to give time sequences to which cyclic prefixes and suffixes are added. The resulting cyclic sequences are then input to the M input channels of the FBMC modulator. The reception symbols can be recovered at the receiver by a simple FFT with size NM/2.
    Type: Application
    Filed: September 19, 2017
    Publication date: March 22, 2018
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Jean-Baptiste DORE
  • Patent number: 9893926
    Abstract: A method of reception of signals transmitted by a FBMC transmitter using a block Alamouti coding. After demodulation in a base band, the received signal is sampled, with the sample blocks undergoing a sliding FFT before being de-multiplexed towards a first path during a first use of the channel and a second path during a second use of the channel. The vectors received on the first path are multiplied by a first and a second transfer matrix, conjugated to provide first and second vectors. The vectors received on a second path undergo time-reversal and complex conjugation and, if appropriate, multiplication by an imaginary factor, depending on the size of the blocks. The vectors thus obtained are multiplied by first and second transfer matrices to provide third and fourth vectors.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: February 13, 2018
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Jean-Baptiste Dore
  • Patent number: 9882758
    Abstract: The invention relates to a receiver and a FBMC reception method making it possible to reduce the decoding latency time and to increase the data rate in a communication system using a handshake exchange protocol or a TDMA access protocol. The receiver introduces zero padding values in place of the last samples of the last block of samples of a FBMC packet, without waiting for the end of this packet. The decoding of the FBMC packet is thus decoded more rapidly, without significant degradation of the error rate and without reduction of the out-of-band rejection rate of the FBMC signal.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: January 30, 2018
    Assignee: Commissariat a l'energie atomique et aux energies alternatives
    Inventor: Jean-Baptiste Dore
  • Publication number: 20170310527
    Abstract: A method of reception of signals transmitted by a FBMC transmitter using a block Alamouti coding. After demodulation in a base band, the received signal is sampled, with the sample blocks undergoing a sliding FFT before being de-multiplexed towards a first path during a first use of the channel and a second path during a second use of the channel. The vectors received on the first path are multiplied by a first and a second transfer matrix, conjugated to provide first and second vectors. The vectors received on a second path undergo time-reversal and complex conjugation and, if appropriate, multiplication by an imaginary factor, depending on the size of the blocks. The vectors thus obtained are multiplied by first and second transfer matrices to provide third and fourth vectors.
    Type: Application
    Filed: April 12, 2017
    Publication date: October 26, 2017
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Jean-Baptiste DORE
  • Publication number: 20170302408
    Abstract: A transmission method and an FBMC transmitter to transmit at least a first and a second block of symbols (X0, X1), each symbols block including a temporal sequence of L vectors with predetermined size N. It uses a first and a second FBMC modulation channel, each FBMC modulation channel being associated with an antenna. During a first use of the channel, the vectors of the first block and the vectors of the second block are input to the first and to the second FBMC modulation channels respectively, in the order of the temporal sequence. During a second use of the channel, the vectors of the first and second blocks are multiplied by a factor jL 1 respectively and ?(jL 1) input to the second and to the first FBMC modulation channels respectively, in the inverse order of the temporal sequence.
    Type: Application
    Filed: April 12, 2017
    Publication date: October 19, 2017
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Jean-Baptiste DORE
  • Patent number: 9712211
    Abstract: A quadrature demodulator not requiring analog mixers. The demodulation is made using a first integrator and a second integrator which are controlled by square logic signals at twice the frequency of the carrier, the received signal being alternatively integrated by the first integrator and the second integrator over periods of time equal to a quarter period of time of the carrier frequency. The samples of the first and second integrators are sampled and subtracted from each other. The successive samples are combined in a first and a second combining module for providing in-phase and quadrature component samples. This demodulator can further be provided with a synchronization module IQ and a symbol synchronization module.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: July 18, 2017
    Assignee: COMMISSARIAT A L'ENERGIES ALTERNATIVES
    Inventors: Pierre Courouve, Jean-Baptiste Dore, Manuel Pezzin
  • Patent number: 9706575
    Abstract: The invention relates to a multiple access method to a frequency band of a communication channel of a communication network with carrier sensing and collision avoidance, said frequency band being broken down into a set of sub-bands (SB0, SB1, . . . , SBi, . . . , SBn) of the communication channel, characterized in that it comprises at a source node, after it has been detected that the communication channel is available, the transmission to a destination node of several request to send messages on the communication channel (RTS NS0, RTS NS1), each of said messages being sent on a sub-band of the communication channel.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: July 11, 2017
    Assignee: Commissariat à l'énergie atomique et aux énergies alternatives
    Inventors: Baher Mawlawi, Jean-Baptiste Dore, Jean-Marie Gorce
  • Patent number: 9692626
    Abstract: A RFID VHBR receiver including a quadrature digital demodulator, a symbol synchronization module at the baud rate and a PSK demodulator. The symbol synchronization module receives the in-phase and quadrature samples from the demodulator and extracts the components of the PSK symbols at the baud rate by selecting a decimation point in time. This synchronization is made by taking advantage of the particular structure of the preamble of the transmission frame in a RFID VHBR receiver.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: June 27, 2017
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Pierre Courouve, Jean-Baptiste Dore, Manuel Pezzin