Patents by Inventor Gary A. Drutch

Gary A. Drutch 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).

  • Adaptive fixed-threshold pulse time-of-arrival detection apparatus for precision distance measuring equipment applications
    Patent number: 5266953
    Abstract: An apparatus to be employed within a precision distance measuring system for estimating pulse time-of-arrival. The apparatus facilitates the use of an Adaptive Fixed Threshold method for such estimation. The invention compensates for pulse time detection errors induced by variations in incident pulse amplitude and shape by adjusting the estimated time-of-arrival. This adjustment is performed as a function of the measured pulse slope between two low-amplitude threshold levels through the use of a predetermined reference table of error adjustment times.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: November 30, 1993
    Assignee: Allied-Signal Inc.
    Inventors: Robert J. Kelly, Michael G. Biggs, Howard H. Ireland, Gary A. Drutch, Janice A. Winter