Patents by Inventor Allen C. Cekorich

Allen C. Cekorich 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).

  • Sub-tau phase modulation in a fiber-optic rotation sensor
    Patent number: 4948252
    Abstract: A method and apparatus are disclosed for closed-loop phase modulation to measure rate and control phase modulator gain errors in an electrical signal representing the phase difference between first and second light signals from light waves counterpropagating in an interferometric rotation sensor including a closed light path with a phase modulator in the path. The disclosed method and apparatus correct phase modulator gain in a way that is independent of rate.
    Type: Grant
    Filed: May 24, 1989
    Date of Patent: August 14, 1990
    Assignee: Litton Systems, Inc.
    Inventor: Allen C. Cekorich