Patents by Inventor Guido Giarrizzo

Guido Giarrizzo 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).

  • Phase-lock loop circuit with fuzzy control
    Patent number: 5805649
    Abstract: A phase-lock loop circuit with fuzzy control, includes a phase comparator whose output is connected to a low-pass filter that drives a voltage-controlled oscillator. The phase comparator generates a signal that represents the phase difference between an input signal and a signal generated by the oscillator. The oscillator of the present invention is furthermore driven by a control signal generated by fuzzy control. The input of the fuzzy control is the signal that represents the phase difference.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: September 8, 1998
    Assignees: SGS-Thomsom Microelectronics S.r.l., Consorzio per la Ricerca sulla Microelettronica nel Mezzogiorno
    Inventors: Federico Travaglia, Maria Grazia La Rosa, Guido Giarrizzo