Patents Assigned to Norhtrop Grumman Corporation
  • Patent number: 5805124
    Abstract: A method and apparatus for providing a driver circuit for an electroluminescent display panel comprising a row driver including positive row drive elements and negative row drive elements, a first power lead with a first predetermined voltage V.sub.neg connected in series through a first switch connection to a first node, the first node connected to a first current limiter to the negative row drive elements, a second current limiter operably connected between a first fixed potential to a second node, the second node connected to the positive row drive elements, a third current limiter connected between the negative row drive element and the second fixed potential, a second power lead with a second predetermined voltage V.sub.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: September 8, 1998
    Assignee: Norhtrop Grumman Corporation
    Inventors: Mohan L. Kapoor, Thomas J. Rebeschi, Peter O. Shanaghan, Daniel J. Toffolo
  • Patent number: 5757611
    Abstract: The invention provides for an electronic package having a buried passive component such as a capacitor therein, and a method for fabricating the same. The electronic package preferably includes a passive component portion which includes a plurality of layers of high K dielectric material, a signal processing portion which includes a plurality of layers of low K dielectric material, and at least one buffer layer interposed between the passive component portion and the signal processing portion. Metallization is preferably printed upon at least one of the layers of high K dielectric material and at least one of the layers of low K dielectric material. Preferably, the layers are co-fired at a temperature below approximately 1200.degree. C. to form the electronic package and each of the buffer layers contains approximately 25 to 100% barium compound.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: May 26, 1998
    Assignee: Norhtrop Grumman Corporation
    Inventors: Stephen R. Gurkovich, Theodore R. Vasilow, Andrew J. Piloto, Deborah P. Partlow, Kenneth C. Radford, Alex E. Bailey