Patent ID: 8164359

Claim:
A threshold logic element comprising: a differential circuit comprising: an input branch comprising an input and an output, the output being either charged or discharged via a current conducting path of the input branch under control of the input of the input branch and the input of the input branch being isolated from the current conducting path of the input branch; and a threshold branch comprising an input and an output, the output being either charged or discharged via a current conducting path of the threshold branch under control of the input of the threshold branch and the input of the threshold branch being isolated from the current conducting path of the threshold branch; an input gate network receiving a plurality of data inputs and having an output coupled to the input of the input branch such that the input gate network does not form part of the current conducting path of the input branch; and a threshold gate network receiving a plurality of threshold inputs and having an output coupled to the input of the threshold branch such that the threshold gate network does not form part of the current conducting path of the threshold branch.