Patents Represented by Attorney Willard Matthews, Jr.

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  • Electronic countermeasures false target system
    Patent number: 4577192
    Abstract: There is disclosed herein a method of applying an active electronic countermeasure (ECM) False Target technique against MTI staggered pulse threat radar. This is accomplished by radar circuits which digitally transfer false target arrays grouped about low pulse repetition frequency (PRF) pulses to high PRF pulses, when they are present. The circuits of the invention then phase shift each transferred array with respect to the fundamental system clock rate to achieve proper alignment.
    Type: Grant
    Filed: March 14, 1969
    Date of Patent: March 18, 1986
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Richard J. Wiegand
  • Signal injection circuit for radar gain and noise tests
    Patent number: 4329688
    Abstract: A circuit injects the signal from a stable localized oscillator past a pin diode switch through a first circulator to a waveguide, a second circuit injects a noise signal from a generating diode through a second circulator to the first circulator to the waveguide, a switching system causes the diodes to function in a coordinated manner.
    Type: Grant
    Filed: February 7, 1980
    Date of Patent: May 11, 1982
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Harry Goldie
  • Broadband mode suppressor for microwave integrated circuits
    Patent number: 4270106
    Abstract: Microwave integrated circuits are enclosed in metal boxes. As more functions are added to circuits RF moding increases. One method of minimizing RF moding is to place a post in the box. This invention broadens the band of frequencies controlled by the post method by attaching a lossy RF absorbing pellet to the end of the mode suppression post.
    Type: Grant
    Filed: November 7, 1979
    Date of Patent: May 26, 1981
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: James D. Woermbke
  • Dual trace automatic eddy current detection system for multilayer structures
    Patent number: 4268791
    Abstract: An automatic eddy current probe is revolved in a hole to be inspected, the output of the probe is divided to provide two signals to a recorder, a filtered signal will indicate the presence or absence of a flaw, a non filtered signal indicates probe position, this is particularly valuable when scanning through several structural layers.
    Type: Grant
    Filed: December 8, 1978
    Date of Patent: May 19, 1981
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Albert P. Rogel, Joseph J. Scalese
  • Digital frequency divider
    Patent number: 4267512
    Abstract: An input signal having a frequency is supplied as input to an exclusive `OR` -gate, the signal is sent to a register selected for the number of times the input signal is to be divided, output from the register is sent to an `AND` gate, output from this gate is fed back to the `OR` gate which, after the selected count, inverts the signal to the register resetting the register. Output of the register is an odd function of the input signal.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: May 12, 1981
    Inventor: William C. Rustenburg
  • Electrical feedthrough system for pressurized containers
    Patent number: 4259546
    Abstract: An electrical feedthrough system for pressurized containers comprising a `T` shaped flexible member adapted to pass through an opening in a container and an epoxy used as a secondary seal and support. A conductor passes through the `T` shaped member which maintains a seal around the conductor. Electrical connections are made to terminals at either end of the conductor.
    Type: Grant
    Filed: November 1, 1979
    Date of Patent: March 31, 1981
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Harry E. Conway