Patents by Inventor George A. Emmons

George A. Emmons 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).

  • Quasi-optical oscillator using ring-resonator feedback
    Patent number: 5450041
    Abstract: A high-power oscillator which uses a quasi-optical ring resonator to prov the feedback required for oscillation allows energy to travel in one direction only within the resonator and suffers little loss of energy during operation. The oscillator is built by inserting an array of amplifiers, tuned to a desired frequency, into the quasi-optical ring resonator formed by three reflective mirrors. The mirrors are spaced such that the total loop phase shift is equal to an integer multiple of 360 degrees at the desired frequency and, by proper selection of the amplifiers, the loop gain is set to be greater than or equal to one.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: September 12, 1995
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ralph H. Halladay, George A. Emmons