Patents by Inventor Eric David Haugen

Eric David Haugen 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).

  • Method and apparatus for eliminating substantially false echoes produced by electrical noise induced into high gain receiver circuits
    Patent number: 6545946
    Abstract: For use with a high gain receiver circuit which receives echo pulses of frequencies within a predetermined bandwidth and at times within interpulse periods of a predetermined pulse repetition rate and amplifies the echo pulses for measurement purposes, the receiver circuit susceptible to electrical noise within the frequency bandwidth of the received echo pulses to create false echo pulses, a method of eliminating substantially the false echo pulses without affecting substantially the amplified echo pulses by accepting only echo pulses which occur synchronously among interpulse periods. The pulse repetition rate may be varied to eliminate false echo pulses that are synchronous to the interpulse periods.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: April 8, 2003
    Assignee: Rosemount Aerospace Inc.
    Inventors: Charles George Huss, Eric David Haugen