Neuromorphic computer

• US 8,275,728 B2
• Filed: 11/05/2009
• Issued: 09/25/2012
• Est. Priority Date: 11/05/2009
• Status: Active Grant

• Current Assignee: United States Air Force
• Original Assignee: United States Of America As Represented By The Secretary Of The Air Force
• Inventors: Pino, Robinson E.
• Primary Examiner(s): FERNANDEZ RIVAS, OMAR F
• Application Number:
  US12/590,306
• Publication Number:
  US 20110106742A1
• Time in Patent Office: 1,055 Days
• Field of Search: None
• US Class Current: 706/33
• CPC Class Codes: G06N 3/065 Analogue means

Abstract

A neuromorphic computing device utilizing electronics to perform the function of neurons and synaptic connections. The invention provides variable resistance circuits to represent interconnection strength between neurons and a positive and negative output circuit to represent excitatory and inhibitory responses, respectively. The invention provides advantages over software-based neuromorphic computing methods.

Claims

1. A neuromorphic computing device, comprising:

at least one input;

at least one output; and

a plurality of synapse circuits electrically interconnecting said at least one input to said at least one output, wherein;

said synapse circuit further comprises

an input;

an output; and

a variable resistance element having an input and an output, wherein said variable resistance element controls the connection strength between said synapse circuits; and

wherein

said variable resistance element further comprises a transistor biased in its linear operating region, wherein said output of said synapse circuit outputs a signal SO(SI, Vm) according to the relationship