Patents by Inventor Alick H. Frank

Alick H. Frank 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).

  • Passive maser using timesharing for control of the cavity and control of the oscillator on the line of stimulated emission
    Patent number: 4449105
    Abstract: A passive maser wherein control of the cavity and control of the oscillator on the line of stimulated emission operate in a shared-time mode. A control circuit acts on the injected signal by way of a programmable synthesizer, the injected signal then assuming the successive values .omega..sub.L.sup.+, .omega..sub.H, .omega..sub.H and .omega..sub.C.sup.+, .omega..sub.H and .omega..sub.C.sup.-, .omega..sub.L.sup.-, .omega..sub.L.sup.+, etc. in stages. .omega..sub.H is centered at the line of stimulated emission; .omega..sub.L.sup.+ and .omega..sub.L.sup.- which are symmetrically shifted interrogate the sides of the emission line; and .omega..sub.C.sup.+ and .omega..sub.C.sup.- which are further symmetrically shifted interrogate the sides of the cavity resonance. The control circuit periodically inhibits the detection action used for controlling the oscillator, and the detection action used for controlling the cavity is carried out only during the inhibition period.
    Type: Grant
    Filed: May 19, 1981
    Date of Patent: May 15, 1984
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Alick H. Frank, Joseph D. White