Patents by Inventor Gilbert P. Gianetti

Gilbert P. Gianetti 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).

  • Detection circuit for use in various types of capacitive transducers and a transducer including such a circuit
    Patent number: 8427178
    Abstract: A detection circuit for detecting changes in capacitance. The detection circuit includes a tuned ratio circuit and an alternating current (AC) source AC-coupled to the tuned ratio circuit. The tuned ratio circuit includes first and second tuned circuits that are tuned to, or close, to the frequency of the AC source. Output circuitry is coupled between the two tuned circuits. During use as a transducer, an active capacitive transducer is inductively coupled to the first tuned circuit. Changes in the capacitance of the active capacitive transducer cause changes in the tuning of the first tuned circuit. The output circuitry generates an output signal that is a function of the difference between the tunings of the first and second tuned circuits.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: April 23, 2013
    Assignee: The University of Vermont and State Agricultural College
    Inventor: Gilbert P. Gianetti
  • Detection Circuit for Use in Various Types of Capacitive Transducers and a Transducer Including Such a Circuit
    Publication number: 20100219842
    Abstract: A detection circuit for detecting changes in capacitance. The detection circuit includes a tuned ratio circuit and an alternating current (AC) source AC-coupled to the tuned ratio circuit. The tuned ratio circuit includes first and second tuned circuits that are tuned to, or close, to the frequency of the AC source. Output circuitry is coupled between the two tuned circuits. During use as a transducer, an active capacitive transducer is inductively coupled to the first tuned circuit. Changes in the capacitance of the active capacitive transducer cause changes in the tuning of the first tuned circuit. The output circuitry generates an output signal that is a function of the difference between the tunings of the first and second tuned circuits.
    Type: Application
    Filed: January 26, 2010
    Publication date: September 2, 2010
    Applicant: The University of Vermont and State Agricultural College
    Inventor: Gilbert P. Gianetti