Patents Represented by Attorney Harvet David

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  • Target size classification system
    Patent number: 4972385
    Abstract: A sonar system is disclosed having signal analyzing circuitry rendering the ystem responsive to objects of a predetermined size. The signal analysis is accomplished by a spectral analysis of the echo signals returned from the objects. In particular, the relative height of adjacent side lobes of echo signals energy returned to the sonar are compared to indicate the size of the object reflecting the signal.
    Type: Grant
    Filed: November 16, 1970
    Date of Patent: November 20, 1990
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventor: Willis A. Teel