Patent ID: 8730987
Filing Date: 2014-05-20
Classification: H04J,H04L

Abstract:
1. A method of communicating with a plurality of devices, each of which is to receive a signal whose amplitude varies in an analogue fashion, the method including the steps of: temporally interleaving the signals for the respective devices so as to form a multiplexed signal having a plurality of sequential pulses arranged in a frame structure, which pulses can, in an analogue fashion, each take an amplitude value within a continuous range; and forming a synchronisation signal within the multiplexed signal for subsequently demultiplexing the multiplexed signal, the synchronisation signal being formed by reducing the amplitude within a temporal portion of at least some of the pulses, wherein the position of the or each reduced amplitude portion within a given pulse is altered in some of the pulses, the pulses within which the position is altered occurring in a cyclic manner, and wherein a pulse within which the position of the reduced amplitude portion is altered indicates a beginning of a frame.