Patent ID: 6020754
Filing Date: 2000-02-01
Classification: G06F,H03K,H03M

Abstract:
A method of using a programmable logic array to implement a NULL convention logic circuit, comprising the steps of:choosing a programmable logic array having at least one nominal level threshold gate and at least one higher level threshold gate;connecting the elements of said logic array to form a threshold gate circuit, said threshold gate circuit having a switching characteristic in which:the threshold gate circuit switches its output to a NULL state when all of a plural number of inputs ""n"" are NULL;the threshold gate circuit switches its output to an ASSERTED state when a plural number of ASSERTED inputs exceeds a threshold number ""m,"" wherein ""m"" is less than or equal to ""n;"" andthe threshold gate maintains a non-NULL output when a number of ASSERTED inputs falls to less than ""m"" and greater than zero (0).