Patents by Inventor Felice Francesco Tafuri

Felice Francesco Tafuri 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 system for calibrating phases of comb teeth in comb signal with pilot tone and using calibrated comb teeth phases to measure a device under test
    Patent number: 9810726
    Abstract: A system and method sequentially measure phases of selected comb teeth of a comb signal using a local oscillator (LO) signal whose frequency and phase are changed for each sequential measurement, and adjust the measured phases to account for the change of phase in the LO signal from measurement of one selected comb tooth to the next to ascertain reference phase differences between the selected comb teeth. The measured phases of the selected comb teeth are adjusted by applying a phase offset determined from a first phase and a second phase of a pilot tone which are measured using the LO signal, respectively, before and after the frequency and phase of the LO signal change from measurement of one comb tooth to the next. The frequency of the pilot tone is maintained to be substantially the same when measuring the first phase and the second phase of the pilot tone.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: November 7, 2017
    Assignee: Keysight Technologies, Inc.
    Inventors: Troels Studsgaard Nielsen, Felice Francesco Tafuri
  • METHOD AND SYSTEM FOR CALIBRATING PHASES OF COMB TEETH IN COMB SIGNAL WITH PILOT TONE AND USING CALIBRATED COMB TEETH PHASES TO MEASURE A DEVICE UNDER TEST
    Publication number: 20170067949
    Abstract: A system and method sequentially measure phases of selected comb teeth of a comb signal using a local oscillator (LO) signal whose frequency and phase are changed for each sequential measurement, and adjust the measured phases to account for the change of phase in the LO signal from measurement of one selected comb tooth to the next to ascertain reference phase differences between the selected comb teeth. The measured phases of the selected comb teeth are adjusted by applying a phase offset determined from a first phase and a second phase of a pilot tone which are measured using the LO signal, respectively, before and after the frequency and phase of the LO signal change from measurement of one comb tooth to the next. The frequency of the pilot tone is maintained to be substantially the same when measuring the first phase and the second phase of the pilot tone.
    Type: Application
    Filed: September 9, 2015
    Publication date: March 9, 2017
    Inventors: Troels Studsgaard Nielsen, Felice Francesco Tafuri