Patents by Inventor Boyd K. Hansen

Boyd K. Hansen 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).

  • Patent number: 4423339
    Abstract: A majority logic gate is comprised of a plurality of depletion mode switching devices and includes Schottky diodes for both level shifting and clamping the high logic level output voltage to ground. A plurality of MESFET input devices each have their gate electrode coupled to one input of the majority logic gate. Each MESFET input device has a source coupled to ground and a drain coupled to a current load device. The voltage level at the drain at each of the input devices changes from a logical "0" to a logical "1" state depending upon the number of inputs which are at a logical "1" level. The drain voltage is then level shifted down. The high logic level output voltage is clamped to ground by means of two Schottky diodes the first of which has a cathode coupled to ground and an anode coupled to the anode of the second diode, the cathode of the second diode being coupled to the output of the circuit.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: December 27, 1983
    Assignee: Motorola, Inc.
    Inventors: Walter C. Seelbach, Boyd K. Hansen