Patents by Inventor James D. Crockett

James D. Crockett 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).

  • Fade tolerant optical communication receiver
    Patent number: 9312966
    Abstract: A system includes a first low noise amplifier (LNA) having a first gain to amplify an optical input signal and to generate an amplified optical output signal. The first gain is set to compensate for signal losses in the optical input signal due to atmospheric fading. A second LNA having a second gain amplifies the amplified optical output signal from the first LNA and generates a saturated output signal when the combined first and second gain of the first LNA and the second LNA exceeds a predetermined output saturation level of a photo detector.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: April 12, 2016
    Assignee: Northrop Grumman Systems Corporation
    Inventor: James D. Crockett