Patent US 9,202,166

A system for machine cognition includes Kanban cells (KC), Kanban cell neurons (KCN), and Kanban cell neuron networks (KCNN). The KC is an asynchronous AND-OR gate without feedback that is self-timing by the input data to process until input is equal to output. Input is a four-valued logic (4VL) based on the set {contradiction, true, false, tautology} of four-valued bit code (4vbc) where contradiction is equivalent to null. Access to a sparsely filled look up table (LUT) is minimized in hardware with a 2-bit value per logical signal.