Patents by Inventor Nibir K. Datta

Nibir K. Datta 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).

  • Patent number: 5485273
    Abstract: Disclosed herein is a Ring Laser Gyroscope Enhanced Resolution System comprising, in a preferred embodiment, a sampling frequency modulation phase-locked loop (or "chirp") which is used in combination with the fast filter. Enhanced resolution is achieved by using the fast filter (preferably a moving average digital filter) to gather optically integrated rate data and accumulate this data. During the data gathering process, the accumulated data is sampled at a rate set by a frequency modulated ("chirper") phase-locked loop in order to remove undesirable data due to aliasing effects upon the digital filter. In this manner, an enhanced resolution of the gyroscope angular measurement is achieved.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: January 16, 1996
    Assignee: Litton Systems, Inc.
    Inventors: John G. Mark, Daniel A. Tazartes, Robert E. Ebner, Neal J. Dahlen, Nibir K. Datta