Patent ID: 6218787
Filing Date: 2001-04-17
Classification: H05B,Y10S

Abstract:
A remotely-controllable lighting system, comprising:a) a power source for continuously providing a sinusoidal AC voltage to a ballast, said power source comprising control signal transmitting means for periodically superimposing a continuously-variable DC control signal upon at least one half-cycle of said sinusoidal AC voltage;b) means for receiving said continuously-variable DC control signal from said power source, for generating a ballast control signal representative thereof, and for transmitting said ballast control signal to the ballast; andc) a luminaire comprising a gas-discharge lamp and the ballast operatively connected thereto, said ballast being operatively connected to said power source and to said means for receiving, for generating and for transmitting;whereby said ballast responds to said ballast control signal in a predetermined manner to control light output from said gas-discharge lamp.