Patent ID: 7570183

Claim:
A system for controlling a group of peripheral devices responsive to variation of a single-channel analog input signal within a range, said system comprising: a single-channel to multi-channel analog-to-analog signal converter for converting said single-channel analog input signal to a plurality of analog signals, said range being partitioned into a plurality of sub-ranges, said analog-to-analog signal converter comprising: a plurality of sub-range signal generators, each of said plurality of sub-range signal generators being responsive to said analog input signal within a sub-range of the plurality of sub-ranges to generate a sub-range analog signal, a data bus having a plurality of bus lines, each of the bus lines being operatively connected to each one peripheral device of the group of peripheral devices for controlling operation thereof, and a unidirectional coupling unit, said uni-directional coupling unit operatively transmitting each of said plurality of sub-range analog signals to at least one of a plurality of bus lines of the data bus and inhibiting any feedback from said bus being transmitted to said analog-to-analog signal converter.