Patents by Inventor Ivan Le Gac

Ivan Le Gac 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 for the management of wavelength-division-multiplexed optical loops
    Patent number: 5745269
    Abstract: A method for the management of a one-directional optical management loop with optical frequency multiplexing. This method is characterized chiefly in that the central station (T) instructs a secondary station (Si) that it designates to tune its reception to a determined wavelength (.lambda.j), on the basis of a message broadcast permanently to all the secondary stations (S1-Sn) on all the channels of the frequency multiplex. This method can be applied to any type of telecommunications network.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: April 28, 1998
    Assignee: France Telecom
    Inventors: Mouhammad Jamil Chawki, Ivan Le Gac, Valerie Tholey
  • Telecommunications network organized in reconfigurable wavelength-division-multiplexed optical loops
    Patent number: 5576875
    Abstract: In a telecommunications network organized in wavelength-division-multiplexed optical loops, each loop has tunable reception means tuned as a function of the density of the network traffic, thus being capable of being reconfigured as a function of requirements. The disclosed system can be applied to public, private and data communication networks.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: November 19, 1996
    Assignee: France Telecom
    Inventors: Mouhammad J. Chawki, Valerie Tholey, Ivan Le Gac