INTELLIGENT SIGNAL PROCESSING

摘要

Intelligent signal processing circuits typically involve complex circuitry with large numbers of wire interconnections and tend to have high power requirements. An intelligent digital signal processing circuit is proposed which comprises: a) a digital signal processor (DSP); b) the interfacing of a plurality of serial data channels to the DSP with each channel being capable of converting a received analogue signal to a digital signal; c) a power supply for each channel where the power supply is modulated by a common clock signal and each channel possesses means to separate the clock signal from the power supply. For the purposes of data transmission wiring can be limited to 3 wires per channel, one for serial data, one for power and a timed pulse to synchronise data transmission and one as an earth return. Circuits produced according to the invention can handle multiple signals, real-time signal processing of incoming signals and the output of filtered signals in digitally multiplexed format.