Charge-coupled device implementation of multivalued logic systems

A survey of recent developments in the implementation of multivalued logic circuits using charge-coupled device technology is presented. A set of basic logic gate structures which is suitable for synthesis of both binary and multivalued functions is defined. Techniques for synthesis of one- and two-variable functions is considered in detail. A special case of threshold functions is emphasised. Finally, realisation of multivalued functions in terms of programmable logic arrays is described.