Patents by Inventor Leon Kristal

Leon Kristal 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).

  • Optical power measurement of a closed loop fiber optic gyroscope
    Patent number: 7295322
    Abstract: This disclosure describes fiber optic gyroscopes that have integrated power measurement capabilities, and related methods and apparatus. More particularly, it describes determining the optical power of a fiber optic gyroscope (FOG) by temporarily adjusting the phase difference between two counter-propagating light beams, measuring the change in light intensity caused by the phase difference adjustment, and using the measured change in light intensity along with known characteristics of the FOG to compute an optical power value. The temporary adjustment in phase difference is preferably done in such a manner not to disturb the normal operation of the FOG.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: November 13, 2007
    Assignee: Litton Systems, Inc.
    Inventors: Leon Kristal, Mark Bowser, Rocco Pennacchio
  • Optical power measurement of a closed loop fiber optic gyroscope
    Publication number: 20060232782
    Abstract: This disclosure describes fiber optic gyroscopes that have integrated power measurement capabilities, and related methods and apparatus. More particularly, it describes determining the optical power of a fiber optic gyroscope (FOG) by temporarily adjusting the phase difference between two counter-propagating light beams, measuring the change in light intensity caused by the phase difference adjustment, and using the measured change in light intensity along with known characteristics of the FOG to compute an optical power value. The temporary adjustment in phase difference is preferably done in such a manner not to disturb the normal operation of the FOG.
    Type: Application
    Filed: April 13, 2005
    Publication date: October 19, 2006
    Inventors: Leon Kristal, Mark Bowser, Rocco Pennacchio