Patents by Inventor Donald L. Starkey

Donald L. Starkey 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).

  • Patent number: 3935437
    Abstract: A signal processor enables the examination of the spectral content of an input signal within a selected analysis bandwidth f.sub.a about an adjustable reference frequency f.sub.r. A multi-segment digital filter in the processor provides sharply reduced levels outside the selected analysis bandwidth by first multiplying the effective data rate in a multiple-register integrating filter and then restoring the data rate in subsequent digital filters.
    Type: Grant
    Filed: February 25, 1974
    Date of Patent: January 27, 1976
    Assignee: Sanders Associates, Inc.
    Inventors: Joseph W. Schmitt, Donald L. Starkey