Title
Energy Efficient Temporal Spatial Information Processing Circuits Based on STDP and Spike Iteration
Abstract
In this brief, we propose a novel energy-efficient temporal-spatial information processing circuit that serves as the signal pre-processing interface for spiking neural networks. In order to transform sensory information into a highly efficient neural-like spike train, an iteration encoding scheme based temporal-spatial inter-spike interval (ISI) encoder is designed and analyzed. Moreover, a decoder is designed with the spike-timing-dependent plasticity (STDP) principle, which performs well in information recovery. The prototype of the proposed ISI encoder is presented, with a 3-interval encoder through the standard 180nm CMOS technology. The proposed ISI encoder could operate in <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$1{MHz}$ </tex-math></inline-formula> sampling frequency, and it occupies merely <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$0.647{m}{m}^{2}$ </tex-math></inline-formula> die area while consuming as low as <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$1.63{uW}$ </tex-math></inline-formula> /neuron power. A multi-level ISI decoder with spike width adaptation is also designed and evaluated through the CIFAR10 image dataset.
Year
DOI
Venue
2020
10.1109/TCSII.2019.2945690
IEEE Transactions on Circuits and Systems II: Express Briefs
Keywords
DocType
Volume
Neurons,Decoding,Encoding,Mathematical model,Biological neural networks,Neuromorphic engineering,Computational modeling
Journal
67
Issue
ISSN
Citations 
10
1549-7747
1
PageRank 
References 
Authors
0.34
0
7
Name
Order
Citations
PageRank
Chenyuan Zhao1274.57
Qiyuan An232.74
Kangjun Bai3115.28
Bryant T. Wysocki4656.76
Clare Thiem5102.06
Lingjia Liu679992.58
Yang Yi715926.70