Globally asynchronous and locally synchronous (GALS) neuromorphic network

US9563841B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Rodrigo Alvarez-Icaza Rivera · San Jose, US
• John V. Arthur · Mountain View, US
• Andrew S. Cassidy · San Jose, US
• Paul A. Merolla · Palo Alto, US
• Dharmendra S. Modha · San Jose, US

Key dates

• Filing date: Jul 31, 2012
• Grant date: Feb 7, 2017
• Expiry date: Oct 3, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G06N3/082
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Embodiments of the invention relate to a globally asynchronous and locally synchronous neuromorphic network. One embodiment comprises generating a synchronization signal that is distributed to a plurality of neural core circuits. In response to the synchronization signal, in at least one core circuit, incoming spike events maintained by said at least one core circuit are processed to generate an outgoing spike event. Spike events are asynchronously communicated between the core circuits via a routing fabric comprising multiple asynchronous routers.