FUNCTIONALLY FULL TOLERANCE ELEMENT Russian patent published in 2013 - IPC H03K19/94 

FIELD: electricity.

SUBSTANCE: device includes 8 CMDS transistors with conductivity of n type and 8 CMDS transistors of p type, which are connected between power bus and zero bus, to gates of which input signals are supplied. At element outputs, basic logic function $$Z=\overline{X_{1.1}}\overline{X_{2.1}}\overline{X_{1.2}}\overline{X_{2.2}}\vee \overline{X_{1.3}}\overline{X_{2.3}}\overline{X_{1.4}}\overline{X_{2.4}},$$ is obtained in terms of Post theorem, which implements function 2OR-NOR with quadruple redundancy provided that X₁=X_1.1=X_1.2=X_1.3=X_1.4 and X₂=X_2.1=X_2.2=X_2.3=X_2.4.

EFFECT: improving reliability of element at failures of transistor owing to providing preservation of type of implemented logic function at single constant failures of inputs of element or transistors.

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