Patents by Inventor James D. Orndorff

James D. Orndorff 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).

  • Ultrasonic frequency expansion processor
    Patent number: 5285499
    Abstract: A method and apparatus for ultrasonic frequency expansion is characterized by expanding audiometric frequencies before translation into the ultrasonic range. The audiometric signals are first expanded in time by a factor of 1/.beta. where .beta.<1 while generally maintaining the frequency content of the audiometric signals. Next the frequency of the signals is expanded by a factor 1/.beta. while compressing the time scale to that of the original signal. The frequency expanded signal is processed via a single-sideband upconverter to translate the frequency expanded signal into a single sideband signal in the ultrasonic range.
    Type: Grant
    Filed: April 27, 1993
    Date of Patent: February 8, 1994
    Assignee: Signal Science, Inc.
    Inventors: Dorothy A. Shannon, John P. King, Joseph T. DeWitte, Jr., James D. Orndorff