Patents by Inventor Wayne C. Annala

Wayne C. Annala 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).

  • Discriminating ultrasonic proximity detection system
    Patent number: 4800540
    Abstract: This invention uses an ultrasonic transmitter and receiver and a microprocessor to detect the presence of an object. In the reset mode the invention uses a plurality of echoes from each ultrasonic burst to create a reference table of the echo-burst-signature of the empty monitored environment. The invention then processes the reference table so that it only uses the most reliable data. In the detection mode the invention compares the echo-burst-signature of the present environment with the reference table, detecting an object if there is a consistent difference between the echo-burst-signature of the empty monitored environment recorded in the reference table and the echo-burst-signature of the present environment.
    Type: Grant
    Filed: December 4, 1986
    Date of Patent: January 24, 1989
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Wayne C. Annala