Patents by Inventor Didier Le Henaff

Didier Le Henaff 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 measuring a line attenuation
    Patent number: 6781386
    Abstract: Accordingly, the invention relates to a process and a device for measuring the attenuation of a line where the measurement process according to the invention makes it possible to measure the attenuation of a line at a given frequency F and includes at least the steps wherein the emission of an electric signal at one end of the electric line, provides a signal that includes a spectral amplitude A1 at the frequency F; the measurement of the signal reflected by the other end of the line, at the end of the line from where the signal was emitted; the determination of the amplitude A2 of the spectral component at the frequency F of the reflected signal; the determination of the attenuation of the line from the ratio of the amplitude A2 to the amplitude A1 where it applies in particular to the rating of asymmetric digital subscriber lines.
    Type: Grant
    Filed: February 10, 2003
    Date of Patent: August 24, 2004
    Assignee: Thales
    Inventor: Didier Le Henaff
  • Method and device for measuring a line attenuation
    Publication number: 20030173399
    Abstract: The present invention relates to a process and a device for measuring the attenuation of a line.
    Type: Application
    Filed: February 10, 2003
    Publication date: September 18, 2003
    Inventor: Didier Le Henaff