Patents by Inventor Stefano Simone Turzi

Stefano Simone Turzi 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).

  • Subband spectrum analysis for optical multiplex section protection
    Patent number: 7529482
    Abstract: The spectrum of a received WDM band or subband is analyzed to detect failure of, e.g., fiber or amplifiers along a line. In one implementation, measurements are taken within the optical spectrum at locations of expected data-carrying optical signals and at two locations just outside the wavelength range occupied by these signals. Magnitudes of adjacent measurements are compared to obtain differences. If none of the differences exceed a threshold, a fault may be determined.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: May 5, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Mario Tamburello, Stefano Simone Turzi, Stefano Vanoli
  • Subband spectrum analysis for optical multiplex section protection
    Patent number: 7181137
    Abstract: The spectrum of a received WDM band or subband is analyzed to detect failure of, e.g., fiber or amplifiers along a line. In one implementation, measurements are taken within the optical spectrum at locations of expected data-carrying optical signals and at two locations just outside the wavelength range occupied by these signals. Magnitudes of adjacent measurements are compared to obtain differences. If none of the differences exceed a threshold, a fault may be determined.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: February 20, 2007
    Assignee: Cisco Technology, Inc.
    Inventors: Mario Tamburello, Stefano Simone Turzi, Stefano Vanoli