A reconfigurable neural network includes several switches each having at least two conductive leads, data flow direction of the conductive leads is programmed to select one of the conductive leads as input switch lead and select another one of the conductive leads as an output switch lead. Several...http://www.google.co.uk/patents/US5751913?utm_source=gb-gplus-sharePatent US5751913 - Reconfigurable neural network and difference-square neuron
