Circuit structure and resulting circuitry formultiple-valued logic. The circuit structure allows the design andfabrication of any r-valued logic function of n-places wherer is an integer greater than I and n is an integer greaterthan 0. This structure is called SUpplementary SymmetricalLOgic Circuit structure (SUS-LOC). In circuits incorporatingSUS-LOC, circuit branches are realized that uniquely delivercircuit response and output. For some circuits, and due tothe operating characteristics of the switch elements, additionalcircuit elements, or stages, must be incorporated to prevent"back biasing". SUS-LOC is fully active. Only activeelements perform logic synthesis and those components notdirectly related to logic synthesis, such as resistors and/orother passive loads, are relegated the task of circuit protection.The fabrication of r-valued, multi-valued, or multiple-valuedlogic circuits, designed using the definitions of the SUS-LOCstructure can be accomplished with known techniques,materials, and equipment.
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