Patents by Inventor Giuseppe Thadeu Freitas de Abreu

Giuseppe Thadeu Freitas de Abreu 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: 11996899
    Abstract: A computer-implemented reconstruction method of discrete digital signal recovery in noisy overloaded wireless communication systems in the presence of hardware impairments that is characterized by a channel matrix of complex coefficients, the method including, receiving the signal from channel by a signal detector, estimation of hardware impairments parameter ? is done at the receiver, estimation noise power is done by a noise power estimator, forwarding the detected signal and hardware impairments parameter ? and noise power estimation to a decoder that estimates the transmitted symbol, wherein the estimation of the decoder produces a symbol that could probably have been transmitted it is forwarded to a de-mapper, which outputs the bit estimates corresponding to the estimated transmit signal and the corresponding estimated symbol to a microprocessor for further processing.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: May 28, 2024
    Assignee: Continental Automotive Technologies GmbH
    Inventors: David Gonzalez Gonzalez, Andreas Andrae, Osvaldo Gonsa, Hiroki Iimori, Giuseppe Thadeu Freitas de Abreu, Razvan-Andrei Stoica
  • Publication number: 20240063858
    Abstract: Transceiver method between at least one receiver and at least one transmitter in an overloaded communication channel that is characterized by a channel matrix, wherein within a first step a transmitter sends out a reference signals to a receiver, and the receiver estimates the channel Matrix, within a second step the receiver optimizes RX beamforming matrix and TX beamforming matrix jointly, within a third step the TX beamforming matrix is sent to the transmitter out-of-band by using a control channel, which is reliable.
    Type: Application
    Filed: December 15, 2021
    Publication date: February 22, 2024
    Applicant: Continental Automotive Technologies GmbH
    Inventors: David Gonzalez Gonzalez, Andreas Andrae, Osvaldo Gonsa, Hiroki Iimori, Giuseppe Thadeu Freitas de Abreu
  • Publication number: 20230198811
    Abstract: A computer-implemented reconstruction method of discrete digital signals in noisy overloaded wireless communication systems that is characterized by a channel matrix of complex coefficients, the method including, receiving the signal from channel by a signal detector, measuring the noise power by a noise power estimator at the receiver , forwarding the detected signal and noise power estimation to a decoder that estimates the transmitted symbol, wherein the estimation of the decoder produces a symbol that could probably have been transmitted it is forwarded to a de-mapper, which outputs the bit estimates corresponding to the estimated transmit signal and the corresponding estimated symbol to a microprocessor for further processing.
    Type: Application
    Filed: April 1, 2021
    Publication date: June 22, 2023
    Applicant: Continental Automotive Technologies GmbH
    Inventors: David Gonzalez Gonzalez, Andreas Andrae, Osvaldo Gonsa, Hiroki Iimori, Giuseppe Thadeu Freitas de Abreu, Razvan-Andrei Stoica
  • Publication number: 20230171023
    Abstract: A computer-implemented reconstruction method of discrete digital signals in noisy overloaded wireless communication systems with CSI Errors that is characterized by a channel matrix of complex coefficients, the method including receiving the signal from channel by a signal detector, estimation of the CSI error parameter ? is done at the receiver, estimation noise power is done by a noise power estimator, forwarding the detected signal and the CSI error parameter ? and noise power estimation to a decoder that estimates the transmitted symbol, wherein the estimation of the decoder produces a symbol that could probably have been transmitted it is forwarded to a de-mapper, which outputs the bit estimates corresponding to the estimated transmit signal and the corresponding estimated symbol to a microprocessor for further processing.
    Type: Application
    Filed: April 1, 2021
    Publication date: June 1, 2023
    Applicant: Continental Automotive Technologies GmbH
    Inventors: David Gonzalez Gonzalez, Andreas Andrae, Osvaldo Gonsa, Hiroki Iimori, Giuseppe Thadeu Freitas de Abreu, Razvan-Andrei Stoica
  • Publication number: 20230144250
    Abstract: A computer-implemented reconstruction method of discrete digital signal recovery in noisy overloaded wireless communication systems in the presence of hardware impairments that is characterized by a channel matrix of complex coefficients, the method including, receiving the signal from channel by a signal detector, estimation of hardware impairments parameter ? is done at the receiver, estimation noise power is done by a noise power estimator, forwarding the detected signal and hardware impairments parameter ? and noise power estimation to a decoder that estimates the transmitted symbol, wherein the estimation of the decoder produces a symbol that could probably have been transmitted it is forwarded to a de-mapper, which outputs the bit estimates corresponding to the estimated transmit signal and the corresponding estimated symbol to a microprocessor for further processing.
    Type: Application
    Filed: April 1, 2021
    Publication date: May 11, 2023
    Applicant: Continental Automotive Technologies GmbH
    Inventors: David Gonzalez Gonzalez, Andreas Andrae, Osvaldo Gonsa, Hiroki Iimori, Giuseppe Thadeu Freitas de Abreu, Razvan-Andrei Stoica
  • Publication number: 20230026867
    Abstract: Estimating transmit symbol vectors transmitted in an overloaded communication channel includes receiving a signal represented by a received signal vector, the received signal vector corresponding to a superposition of signals representing transmitted symbols selected from a constellation of symbols and transmitted from one or more transmitters.
    Type: Application
    Filed: November 20, 2020
    Publication date: January 26, 2023
    Inventors: David Gonzalez Gonzalez, Andreas Andrae, Osvaldo Gonsa, Hiroki Iimori, Giuseppe Thadeu Freitas de Abreu, Razvan-Andrei Stoica
  • Publication number: 20220417065
    Abstract: A computer-implemented method of estimating transmit symbol vectors transmitted in an overloaded communication channel includes receiving a signal represented by a received signal vector, the received signal vector corresponding to a superposition of signals representing transmitted symbols selected from a constellation of symbols and transmitted from one or more transmitters. Continuous first and second functions in a search space in a convex domain are defined. The first function and the second function are combined into a third function, and a fractional programming algorithm is applied to the third function, targeted to finding an input vector that minimizes the third function. A mapping rule translates the found input vector into an estimated transmit symbol vector, and the estimated transmit symbol vector is output to a decoder for decoding into an estimated transmit symbol from the constellation.
    Type: Application
    Filed: October 29, 2019
    Publication date: December 29, 2022
    Inventors: David Gonzalez Gonzalez, Andreas Andrae, Osvaldo Gonsa, Hiroki Iimori, Giuseppe Thadeu Freitas de Abreu