Patents by Inventor Edward E. Messer, Jr.

Edward E. Messer, Jr. 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).

  • Monolithic vector modulator/complex weight using all-pass network
    Patent number: 4806888
    Abstract: A complex weighting device contains parallel all-pass networks selectively feeding a pair of differential amplifiers, so as to produce a set of mutually orthogonal vector outputs. These outputs are coupled to an attenuator network comprised of dual gate field effect transistors for controllably attenuating the vector outputs of the differential amplifiers. The attenuated vectors are selectively combined to realize a prescribed degree of phase shift from 0.degree. to 360.degree. through the complex weight.
    Type: Grant
    Filed: April 14, 1986
    Date of Patent: February 21, 1989
    Assignee: Harris Corp.
    Inventors: Seward T. Salvage, Edward E. Messer, Jr.