Patents by Inventor Richard M Smith

Richard M Smith 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).

  • Automatic thresholding and reference circuit
    Patent number: 4067013
    Abstract: An automatic thresholding reference and detection circuit which generates a signal in time which is a replica of the radar return signal's doppler spectrum. The radar signal return is processed by a target signal channel having a narrow bandwidth filter which produces a fine resolution replica of the signal spectrum, and by a reference signal channel having a wider bandwidth filter, which produces a smeared (or average) replica of the signal spectrum. The output of the reference signal channel is a threshold signal which, when compared to the output of the target signal channel, allows only the target signals to be passed for further processing and rejects clutter and thermal noise.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: January 3, 1978
    Assignee: The United States of America as represented by the Navy
    Inventor: Richard M. Smith