Patents by Inventor Jean-Michel Auffray

Jean-Michel Auffray 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).

  • Method and device for transmitting a signal in a multi-antenna system, signal, and method for estimating the corresponding transmission channels
    Patent number: 8358990
    Abstract: A method is provided for transmitting a digital signal via n transmit antennas, wherein n is strictly greater than 2. The method includes combining with a source data vector n vectors to be transmitted respectively by each of the transmit antennas by a coding matrix <I>M</I> with a yield equal to 1, using reference symbols known to at least one receiver whereby it is able to estimate at least three transmission channels corresponding respectively to each of the transmit antennas. The coding matrix <I>M</I> applies a mathematical transformation to the reference symbols prior to the transmission thereof.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: January 22, 2013
    Assignee: France Telecom
    Inventors: Rodolphe Legouable, Vincent Le Nir, Maryline Helard, Jean-Michel Auffray, Jean-Francois Helard
  • METHOD AND DEVICE FOR TRANSMITTING A SIGNAL IN A MULTI-ANTENNA SYSTEM, SIGNAL, AND METHOD FOR ESTIMATING THE CORRESPONDING TRANSMISSION CHANNELS
    Publication number: 20100195761
    Abstract: A method is provided for transmitting a digital signal via n transmit antennas, wherein n is strictly greater than 2. The method includes combining with a source data vector n vectors to be transmitted respectively by each of the transmit antennas by a coding matrix <I>M</I> with a yield equal to 1, using reference symbols known to at least one receiver whereby it is able to estimate at least three transmission channels corresponding respectively to each of the transmit antennas. The coding matrix <I>M</I> applies a mathematical transformation to the reference symbols prior to the transmission thereof.
    Type: Application
    Filed: April 8, 2010
    Publication date: August 5, 2010
    Applicant: FRANCE TELECOM
    Inventors: Rodolphe Legouable, Vincent Le Nir, Maryline Helard, Jean-Michel Auffray, Jean-Francois Helard
  • Method and device for transmitting a signal in a multi-antenna system, signal, and method for estimating the corresponding transmission channels
    Patent number: 7725091
    Abstract: A method for transmitting a digital signal via n transmit antennas, wherein n is strictly greater than 2, comprising the steps of combining with a source data vector n vectors to be transmitted respectively by each of the transmit antennas by a coding matrix <I>M</I> with a yield equal to 1, using reference symbols known to at least one receiver whereby it is able to estimate at least three transmission channels corresponding respectively to each of said transmit antennas. Said coding matrix <I>M</I> applied a mathematical transformation to the reference symbols prior to the transmission thereof.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: May 25, 2010
    Assignee: France Telecom
    Inventors: Rodolphe Legouable, Vincent Le Nir, Maryline Helard, Jean-Michel Auffray, Jean-Francois Helard
  • Method and Device for Transmitting a Signal in a Multi-Antenna System, Signal, and Method for Estimating the Corresponding Transmission Channels
    Publication number: 20070238420
    Abstract: A method for transmitting a digital signal via n transmit antennas, wherein n is strictly greater than 2, comprising the steps of combining with a source data vector n vectors to be transmitted respectively by each of the transmit antennas by a coding matrix <I>M</I> with a yield equal to 1, using reference symbols known to at least one receiver whereby it is able to estimate at least three transmission channels corresponding respectively to each of said transmit antennas. Said coding matrix <I>M</I> applied a mathematical transformation to the reference symbols prior to the transmission thereof.
    Type: Application
    Filed: April 19, 2005
    Publication date: October 11, 2007
    Applicant: France Telecom
    Inventors: Rodolphe Legouable, Vincent Nir, Maryline Helard, Jean-Michel Auffray, Jean-Francois Helard