Patents by Inventor Gregory E. Cary

Gregory E. Cary 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).

  • Laser gyro dither strippr gain correction method and apparatus
    Patent number: 5486920
    Abstract: A sampling method and apparatus for sampling a dither signal includes the step of sensing a number of peak amplitudes P.sub.1, P.sub.2, P.sub.3 . . . P.sub.n each of the number of peak amplitudes having a corresponding times t.sub.1, t.sub.2, t.sub.3 . . . t.sub.n while simultaneously sensing a number of ring laser gyro output angles at each of the corresponding times t.sub.1, t.sub.2, t.sub.3 . . . t.sub.n. A value of the gyro net output, .DELTA..phi., is calculated as .DELTA..phi.=(.phi..sub.n -.phi..sub.n-1)-(.alpha..sub.n -.alpha..sub.n-1)K, where K is a correction factor. Alternatively, the stripped gyro angle output may be calculated as .phi..sub.g =.phi..sub.n -.alpha..sub.n K. Where .phi..sub.g is substantially equivalent to the sum of all of the changes in the stripped gyro angle, that is the sum of all .DELTA..phi.'s. The correction may include corrections for gain, phase angle, nonlinearity, temperature bias and scale factors.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: January 23, 1996
    Assignee: Honeywell, Inc.
    Inventors: Joseph E. Killpatrick, Dale F. Berndt, Keith R. Fritze, Gregory E. Cary