An electrical control system is disclosed for controlling a plurality of variable transmittance windows. To achieve these and other aspects and advantages, the electrical control system of the present invention comprises a master control circuit for supplying control signals representing transmittance...http://www.google.com.au/patents/US6567708?utm_source=gb-gplus-sharePatent US6567708 - System to interconnect, link, and control variable transmission windows and variable transmission window constructions
