Patents by Inventor Michael H. Stripling

Michael H. Stripling 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).

  • Vehicle detector
    Patent number: 4005384
    Abstract: A line spectrum detector to distinguish motor vehicles acoustically in the resence of background noise. The detector senses periodic signals, such as the firing rates of internal combustion engines, by using a swept phase-lock loop spectrum analyzer and passes the sensed signals to a logic network which measures the frequency stability of the sensed signal to distinguish motor vehicles from aircraft vehicles and the like.
    Type: Grant
    Filed: January 14, 1970
    Date of Patent: January 25, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Cabell N. Pryor, Jr., Edward Hug, Michael H. Stripling