Patents by Inventor Arnaud Moutard

Arnaud Moutard 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).

  • Correction of mismatches between two I and Q channels
    Patent number: 8121230
    Abstract: A method for correcting mismatches between a digital signal in phase and a digital signal in quadrature originating from a signal broadcast by terrestrial channel, comprising a phase correction method. A set of first error values is measured during a first period. A current value of a second error is determined based on a sum of the first error values. The current value is compared with a previous second error value stored in memory. The value of a current phase shift correction is chosen from two phase shift correction values, based on the result of the comparison and the value of a previous phase shift correction. The value of the chosen current phase shift correction is added to the previous phase shift to obtain a current phase shift. This current phase shift is introduced between the digital signal in phase and the digital signal in quadrature.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: February 21, 2012
    Assignee: STMicroelectronics S.A.
    Inventor: Arnaud Moutard
  • Correction of mismatches between two I and Q channels
    Publication number: 20080170651
    Abstract: A method for correcting mismatches between a digital signal in phase and a digital signal in quadrature originating from a signal broadcast by terrestrial channel, comprising a phase correction method. A set of first error values is measured during a first period. A current value of a second error is determined based on a sum of the first error values. The current value is compared with a previous second error value stored in memory. The value of a current phase shift correction is chosen from two phase shift correction values, based on the result of the comparison and the value of a previous phase shift correction. The value of the chosen current phase shift correction is added to the previous phase shift to obtain a current phase shift. This current phase shift is introduced between the digital signal in phase and the digital signal in quadrature.
    Type: Application
    Filed: July 5, 2006
    Publication date: July 17, 2008
    Applicant: STMicroelectronics S.A.
    Inventor: Arnaud Moutard