Patents by Inventor Javier Sanchez Araujo

Javier Sanchez Araujo 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 of synchronizing a radio terminal of a radio communication network and a corresponding radio terminal
    Patent number: 6961352
    Abstract: The invention relates to a method for synchronizing a radio terminal in a radio-communication network with a received signal flow comprising a predefined synchronization sequence repeated at predefined time intervals. According to the invention, the method consists in generating correlation profiles at the radio terminal by correlating a part of said signal flow with the synchronization sequence to reveal correlation peaks and accumulating as many correlation profiles as necessary, until a threshold level is reached by at least the largest correlation peak. The threshold level is updated, during the accumulation, depending on a background noise level estimated in the signal flow to dynamically determine if the synchronization sequence has been detected at the radio terminal.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: November 1, 2005
    Assignee: Alcatel
    Inventors: Jean-Francois Bouquier, Benoit De Cacqueray, Javier Sanchez Araujo, Elie Bejjani
  • Method of synchronizing a radio terminal of a radio communication network and a corresponding radio terminal
    Publication number: 20010040884
    Abstract: The invention relates to a method for synchronizing a radio terminal in a radio-communication network with a received signal flow comprising a predefined synchronization sequence repeated at predefined time intervals. According to the invention, the method consists in generating correlation profiles at the radio terminal by correlating a part of said signal flow with the synchronization sequence to reveal correlation peaks and accumulating as many correlation profiles as necessary, until a threshold level is reached by at least the largest correlation peak. The threshold level is updated, during the accumulation, depending on a background noise level estimated in the signal flow to dynamically determine if the synchronization sequence has been detected at the radio terminal.
    Type: Application
    Filed: March 2, 2001
    Publication date: November 15, 2001
    Inventors: Jean-Francois Bouquier, Benoit De Cacqueray, Javier Sanchez Araujo, Elie Bejjani