Patents by Inventor Michael L. Pappas

Michael L. Pappas 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).

  • Automated minimum resolvable contrast (AMRC) test
    Patent number: 5748230
    Abstract: A system for automatically performing the Minimum Resolvable Contrast (MRC) test on an image sensor, such as a TV camera, using a digital signal processor for controlling the testing, wherein an edge response from a square aperture target edge is used to generate a Modulation Transfer Function (MTF) which, in combination with signal and noise data obtained using the square aperture target, provides an input to automated MRC (AMRC) processing equations, from which a value can be calculated for an AMRC output. Alternatively, a slit target may be substituted for the square target aperture when measuring camera MTF.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: May 5, 1998
    Assignee: Northrop Grumman Corporation
    Inventors: Harold J. Orlando, Michael L. Pappas, Marco A. Lopez