Patents Assigned to InDigitale Limited
  • Variable high frequency lamp controllers and systems
    Patent number: 6229270
    Abstract: A high frequency control circuit for a gaseous discharge lamp which includes a mechanically variable reactance device coupled in series with the lamp to control the current fed to the lamp. The mechanically variable reactance device is adjustable by a user to alter the intensity of the light emitted by the lamp.
    Type: Grant
    Filed: January 26, 2000
    Date of Patent: May 8, 2001
    Assignee: InDigitale Limited
    Inventors: John Peter Stephenson, George Alan Limpkin