Patents by Inventor Allan R. Malvern

Allan R. Malvern 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).

  • Ring resonator gyroscope control system with gain difference equalization
    Patent number: 5018858
    Abstract: A system for controlling the frequency of one of the CW and CCW beams in a ring resonator gyroscope in which the relative intensities of the second harmonic of the path length control signal in the CW and CCW beam are used to generate a control signal to null the gain differences between the photodetectors and pre-amplifiers in the CW and CCW channels. The scheme allows a greater degree of common mode rejection than known systems.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: May 28, 1991
    Assignee: British Aerospace Public Limited Company
    Inventor: Allan R. Malvern