Patents Assigned to General Atronics Corporation
  • Electrical system
    Patent number: 4172968
    Abstract: 1. In a secure communication system; means for producing an analog intelligence signal; means for limiting the amplitude of said signal; means for transforming portions of said amplitude limited signal occurring in time sequence into a corresponding digital signal consisting of sequentially occurring n-digit words; means for combining said digital signal with a digital keystream signal in modulo 2.sup.n fashion; and means for transforming the digital signal produced by said combining means into an analog signal.
    Type: Grant
    Filed: December 8, 1961
    Date of Patent: October 30, 1979
    Assignee: General Atronics Corporation
    Inventors: Bernard D. Steinberg, Robert C. Hilliard