Patents by Inventor Andrew A. Tvirbutas

Andrew A. Tvirbutas 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).

  • Calibration method for a stellar sensor
    Patent number: 7595483
    Abstract: A method for determining a test star location in a field of view of the stellar sensor, by determining a test star location in a field of view of multiple stellar sensor patches. A narrow beam of light is shined onto pixels of a stellar sensor to obtain data of the response outputs of illuminated pixels and data of the non-response outputs from non-illuminated pixels. Data frames are formed from the data of response outputs and non-response outputs. A data point is formed from a data frame section of a data frame, data frame sections of the data frame producing data points. A data array is formed from the data points. Data patches are formed from the data array and processed.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: September 29, 2009
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Andrew A. Tvirbutas