Acoustic wave correlator control circuitry

Control circuitry is described for use in a multiphase wave correlator device. First and second electron control circuitry are coupled, respectively, between first and second signal conductors and piezoresistive detector circuitry. The first and second signal conductors are coupled, respectively, to first and second output terminals and also to first and second load circuitry. Control electrodes of the first and second electron control circuitry are coupled, respectively, to input and output terminals of phase reversal circuitry. The number of required piezoelectric detector circuitry is reduced by a factor of two as a result of providing the phase reversal control circuitry and the first and second electron control circuitry according to the invention. The number of electrical connections required to control the piezoresistive detectors is reduced as a result of this control circuitry.