Patents by Inventor Carl K. Frederickson

Carl K. Frederickson 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).

  • Methods for detecting humans
    Patent number: 7894305
    Abstract: A method of detecting a human, that includes (a) measuring the ultrasonic signal emitted from human footsteps; (b) measuring the human body motion Doppler signature; reviewing the measurements of steps (a) and (b); and (d) determining the presence of a human.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: February 22, 2011
    Assignee: University of Mississippi
    Inventors: James M. Sabatier, Alexander E. Ekimov, Carl K. Frederickson