Patents by Inventor Cedric Demeure

Cedric Demeure 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).

  • System and method for the transmission of an audio or speech signal
    Patent number: 7453951
    Abstract: A system and method for transmitting an analog signal. The analog signal is converted into complex numbers such that two successive audio samples respectively form a real part and an imaginary part of a respective complex number. The complex numbers are then dispersed in a time-frequency space. The complex numbers are then modulated through a digital modulator into temporal signals and the temporal signals are output for transmission. Thereby, a digital modulator conventionally used for modulating digital input signals can operate for the transmission of an analog signal.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: November 18, 2008
    Assignee: Thales
    Inventors: Pierre André Laurent, Cédric Demeure
  • Method and modem for phase synchronization and tracking
    Patent number: 7366256
    Abstract: In a method and device to demodulate a signal in a packet communications system, the signal comprises at least one burst representing data samples relative to one or more users. The method comprises at least one step of phase estimation and tracking during at least the duration of the burst in using a frequency assumption test.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: April 29, 2008
    Assignee: Thales
    Inventors: Jacques Eudes, Cedric Demeure
  • Method and modem for phase synchronization and tracking
    Publication number: 20040105396
    Abstract: In a method and device to demodulate a signal in a packet communications system, the signal comprises at least one burst representing data samples relative to one or more users. The method comprises at least one step of phase estimation and tracking during at least the duration of the burst in using a frequency assumption test.
    Type: Application
    Filed: November 7, 2003
    Publication date: June 3, 2004
    Applicant: THALES
    Inventors: Jacques Eudes, Cedric Demeure
  • System and method for the transmission of an audio or speech signal
    Publication number: 20030012293
    Abstract: Disclosed is a method and device that use a digital type modem to transmit analog signals. The modem is of the OFDM, COFDM or single-carrier type. Application to the transmission of a speech or audio signal in total security.
    Type: Application
    Filed: June 18, 2002
    Publication date: January 16, 2003
    Applicant: THALES
    Inventors: Pierre Andre Laurent, Cedric Demeure