A data communication system for selectively activating a plurality of remote loads. The system includes a transmitter having an encoder with first and second sets of inputs. The encoder provides a multi-bit pulse train for transmission to a receiver. Selected bits of the pulse train are associated with...http://www.google.fr/patents/US4315249?utm_source=gb-gplus-shareBrevet US4315249 - Data communication system for activating remote loads
Data communication system for activating remote loads