Patents Represented by Attorney Norman V. Brown

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  • Adaptive preprocessing system
    Patent number: 4464768
    Abstract: The present invention preprocesses serial data sample sets so that truly ependent samples are available for further processing. Samples to be analyzed are delayed and compared in order to isolate both components that are correlated between samples, and components that are uncorrelated between samples. These components provide independent information relating the samples which are used to modify or preprocess incoming data.
    Type: Grant
    Filed: May 28, 1975
    Date of Patent: August 7, 1984
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Bernard L. Lewis, Frank F. Kretschmer, Jr.
  • Adaptive MTI system
    Patent number: 4459700
    Abstract: An improved technique for eliminating interference in serial data samples ving signal components which are desired to be removed before being further processed. A limited-iterative technique is employed to reduce components of the incoming data samples which are correlated among prior data samples.
    Type: Grant
    Filed: May 28, 1975
    Date of Patent: July 10, 1984
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Frank F. Kretschmer, Jr., Bernard L. Lewis, James P. Hansen
  • Sea clutter reduction technique
    Patent number: 4041489
    Abstract: A multi carrier-frequency pulsed radar system in which each carrier-frequy reflected radar signal is separately processed by parallel receiver branches. The output of each receiver branch is multiplied together to form the product of the separate receiver outputs, which product is then displayed on a plan-position-indicator (P.P.I.) display.
    Type: Grant
    Filed: June 25, 1974
    Date of Patent: August 9, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Bernard L. Lewis