Patent ID: 9072134
Filing Date: 2015-06-30
Classification: H05B

Abstract:
1. A control unit for controlling an illumination parameter of one or more light sources of a plurality of light sources, each of the plurality of light sources being switchable between a disable mode and an enable mode, and the control unit being arranged to: select the one or more light sources of the plurality of light sources by switching only the selected one or more light sources into the enable mode, thereby to enable the one or more light sources that are selected and to disable the not selected light sources to cause only the selected one or more light sources to respond to a broadcast signal representing the required value of the illumination parameter and containing no individual addressing information for the plurality of light sources, convert the input signal to the broadcast signal for the plurality of light sources; and enable the same broadcast signal to be provided to the plurality of light sources after the one or more light sources have been selected, thereby enabling only the selected one or more light sources to comply with the required value of the illumination parameter.