Patents by Inventor Alfons A. Tuszyski

Alfons A. Tuszyski 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).

  • Circuit for high impedance broad band probe
    Patent number: 4646002
    Abstract: A zero capacitance measurement probe to be used to make electrical measurements at a broad range of frequencies without having the probe itself affect the measured values. The probe reduces internal capacitances in the solid state active elements or creates a negative impedance to counteract capacitance external capacitance. Elimination of capacitance is accomplished by adjusting gains and current flow within active elements and by insulating the elements from ground by an additional substrate and metalized layer.
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: February 24, 1987
    Assignee: Regents of the University of Minnesota
    Inventor: Alfons A. Tuszyski