Patent ID: 7397203

Claim:
A gas discharge lighting system comprising: at least one gas discharge lighting device; a source of input power; an electronic ballasting circuit having a regulated direct requirement coupled between said at least one gas discharge lighting device and said source of input power comprising: an alternating-to-direct current conversion means; a power regulator connected to said alternating-to-direct current conversion means for converting its output to said regulated direct current required to operate said ballasting circuit; a controllable output direct current to alternating current inverter that operates with a substantially square wave output at a frequency above that of audible sound; an impedance network interposed between said inverter and said at least one gas discharge lighting device comprising at least one resonating inductor and one capacitor to modify the square wave output of said inverter to provide proper operation of said at least one gas discharge lighting device; a controlling device that controls the operation of said inverter and thus, via said impedance network, an amount of power delivered to said at least one gas discharge lighting device; and a connection from said source of input power to said controlling device to detect and decode signals on said source of input power to adjust the operation of said at least one gas discharge lighting system.