Patents Assigned to Imogene Healy
  • Differential phase shift amplifier of electrical or physical quantities
    Patent number: 6275686
    Abstract: An amplifier system for electrical or physical quantities such as voltage or sound converts the quantity in a transducer to a differential phase shift of a high carrier frequency which is an analog equivalent of the quantity and multiplies the differential phase shift by conversion to a low frequency and frequency doubling back to the carrier frequency in successive stages by means of digital logic circuits.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: August 14, 2001
    Assignee: Imogene Healy
    Inventor: William Hotine