A neuron for use in a neural processing network, comprises a memory having a plurality of storage locations at each of which a number representing a probability is stored, each of the storage locations being selectively addressable to cause the contents of the location to be read to an input of a comparator....http://www.google.com/patents/US5175798?utm_source=gb-gplus-sharePatent US5175798 - Digital artificial neuron based on a probabilistic ram
