US 12,511,103 B2 · Combinatorial logic circuits with feedback

Abstract

Combinatorial logic circuits with feedback, which include at least two combinatorial logic elements, are disclosed. At least one of the combinatorial logic elements receives an external input (i.e., from outside the circuit), at least one of the combinatorial logic elements receives an input that is feedback of the circuit output, and at least one of the combinatorial logic elements receives an input that is neither an external input nor an output of the circuit but rather is from another of the combinatorial logic elements and thus only “implicit” to the circuit. No staticizers are needed; the logic circuits effectively create implicit equations to perform functions that were previously thought to require sequential logic. The combinatorial logic circuits result in a stable output (in some instances after a brief period of time) due to the implicit equations, rather than achieving stability from an explicit expression of some input to the circuit.

Claims5

Dependent claims

A multi-bit combinatorial circuit with feedback for producing a multi-bit circuit output that is a function of itself in response to one or more multi-bit circuit inputs, comprising:

a plurality of multi-bit combinatorial logic elements, each configured to receive a plurality of multi-bit element inputs and to produce a multi-bit element output;
wherein:
the element output of one of the plurality of combinatorial logic elements is the multi-bit circuit output;
an element input to at least one of the plurality of multi-bit combinatorial logic elements is a multi-bit circuit input;
an element input to at least one of the combinatorial logic elements is feedback of an entire combinatorial multi-bit circuit output;
and
the multi-bit combinatorial logic elements perform a mathematical calculation in which the multi-bit circuit output is a function of itself.

4 more elements

Dependencies are inferred from the claim text.

Combinatorial logic circuits with feedback

Life of this patent

Combinatorial logic circuits with feedback

Life of this patent

Abstract

Claims5