Patents Examined by Nicholas Biase
  • Method and means for modulating waves
    Patent number: 4433312
    Abstract: An improved high efficiency amplitude modulation system comprising three power amplifier paths, each incorporating high efficiency type amplifiers.One path amplifies an unmodulated carrier wave and the other two amplify phase modulated waves preferably generated by the disclosed improved Armstrong phase modulator.
    Type: Grant
    Filed: December 18, 1981
    Date of Patent: February 21, 1984
    Inventor: Leonard R. Kahn