VLSI architecture for analog bidirectional pulse-coupled neural networks

A compact architecture for analog CMOS VLSI implementation of voltage-mode pulse-coupled neural network (PCNN) is presented. The main feature of the proposed neuron circuit is that the structure is compact, yet exhibiting all the basic properties of natural biological neurons. Another unique feature of the proposed neuron cell is that one node serves as both input and output, mimicking a natural biological neuron, and the neuron cell uses frequency modulated bidirectional pulse-streams. Functionality of the proposed PCNN circuit is verified with SPICE simulations