in: l. s. smith and a. hamilton (eds.): neuromorphic ... · !rÂd½ ð¾ ĦÀ«½ f a¾...

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in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic Systems: Engineering Silicon from Neurobiology. 1st European Workshop on Neuromorphic Systems, Stirling (GB), Progress in Neural Processing, vol. 10, pp. 99-112, World Scientific Publishing, Singapore 1998

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Page 1: in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic ... · !rÂD½ ð¾ ĦÀ«½ F A¾ ¿vÂDÃ6¾SÂr¿ Û Ø/Ï'ÖOÌ/É9ÆjÇlȸÑ

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in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic Systems: Engineering Silicon from Neurobiology. 1st European Workshop on Neuromorphic Systems, Stirling (GB), Progress in Neural Processing, vol. 10, pp. 99-112, World Scientific Publishing, Singapore 1998

Page 2: in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic ... · !rÂD½ ð¾ ĦÀ«½ F A¾ ¿vÂDÃ6¾SÂr¿ Û Ø/Ï'ÖOÌ/É9ÆjÇlȸÑ

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in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic Systems: Engineering Silicon from Neurobiology. 1st European Workshop on Neuromorphic Systems, Stirling (GB), Progress in Neural Processing, vol. 10, pp. 99-112, World Scientific Publishing, Singapore 1998

Page 3: in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic ... · !rÂD½ ð¾ ĦÀ«½ F A¾ ¿vÂDÃ6¾SÂr¿ Û Ø/Ï'ÖOÌ/É9ÆjÇlȸÑ

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in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic Systems: Engineering Silicon from Neurobiology. 1st European Workshop on Neuromorphic Systems, Stirling (GB), Progress in Neural Processing, vol. 10, pp. 99-112, World Scientific Publishing, Singapore 1998

Page 4: in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic ... · !rÂD½ ð¾ ĦÀ«½ F A¾ ¿vÂDÃ6¾SÂr¿ Û Ø/Ï'ÖOÌ/É9ÆjÇlȸÑ

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in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic Systems: Engineering Silicon from Neurobiology. 1st European Workshop on Neuromorphic Systems, Stirling (GB), Progress in Neural Processing, vol. 10, pp. 99-112, World Scientific Publishing, Singapore 1998

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in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic Systems: Engineering Silicon from Neurobiology. 1st European Workshop on Neuromorphic Systems, Stirling (GB), Progress in Neural Processing, vol. 10, pp. 99-112, World Scientific Publishing, Singapore 1998

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in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic Systems: Engineering Silicon from Neurobiology. 1st European Workshop on Neuromorphic Systems, Stirling (GB), Progress in Neural Processing, vol. 10, pp. 99-112, World Scientific Publishing, Singapore 1998

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in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic Systems: Engineering Silicon from Neurobiology. 1st European Workshop on Neuromorphic Systems, Stirling (GB), Progress in Neural Processing, vol. 10, pp. 99-112, World Scientific Publishing, Singapore 1998

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S

S

S

S

S

S S

S

S

N N N

A H A H A H

S − Synapse

A − Activity

N − Neuron

H − History

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S S

S

S

S

S

S S S

N N N

A H A H A H

ws ws ws

N − Vector of neurons

H − HistoryA − Activity

S − Synapse array

ws − Weighted sum

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ÍkË°Æ�Ó�Ë6É9Õ�ÔLÇlË6ã9ȸÎWÈoÇQÓ'Þ/ÍYÑ<ã/ÎWÏiÒ�Ô=Ñ6ÖAÔLÌ®ÆkØ�ÔYÓ�ÔQÇlÏiÒ�Ô�Ú �Ï�ÔYÞ/ȸÇYÏ�ÇYØ9ÏFÊ°Ï�É/ÏiÍkË6Î@ÍlÑ°ã/Ì9ÔLÇ�É9Ë6ÇYÌ/ÍlÏÑ6Ö9ÇYØ/Ï+Þ/ÍlÑ@ÆiÏ�ÔlÔLÈWÉ/ÊFÒ�Ï�É<ÇlȸÑ<É/Ï�Õ'Ë6ã«Ñyаϰäv×+Ï�Ì9ÔYÏ�Õ(ÇQ×�Ñ&Ë°ÔYÓ@É9ÆkØ/ÍlÑ°É/Ñ<Ì9Ô�Æ�ÎWÑ�Ækâ�ÔAÇYÑ&Þ/ÍlÏiÐ<ÏiÉUÇ

in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic Systems: Engineering Silicon from Neurobiology. 1st European Workshop on Neuromorphic Systems, Stirling (GB), Progress in Neural Processing, vol. 10, pp. 99-112, World Scientific Publishing, Singapore 1998

Page 9: in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic ... · !rÂD½ ð¾ ĦÀ«½ F A¾ ¿vÂDÃ6¾SÂr¿ Û Ø/Ï'ÖOÌ/É9ÆjÇlȸÑ

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Threshold

from synapses

Activity

Z

Clock 1

Clock1

1 2 3 4t /us

Clock2

1 2 3 4 t /us

t

U

1 2 3 4 t /us

AHP

History H

t

U

H

Ai

H − History computationZ − Soma Potential capacitor STM − Short Term Memory

iA − inner Activity

AHP − After Hyperpolarization

STM

Clock 2

A

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in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic Systems: Engineering Silicon from Neurobiology. 1st European Workshop on Neuromorphic Systems, Stirling (GB), Progress in Neural Processing, vol. 10, pp. 99-112, World Scientific Publishing, Singapore 1998

Page 10: in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic ... · !rÂD½ ð¾ ĦÀ«½ F A¾ ¿vÂDÃ6¾SÂr¿ Û Ø/Ï'ÖOÌ/É9ÆjÇlȸÑ

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in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic Systems: Engineering Silicon from Neurobiology. 1st European Workshop on Neuromorphic Systems, Stirling (GB), Progress in Neural Processing, vol. 10, pp. 99-112, World Scientific Publishing, Singapore 1998

Page 11: in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic ... · !rÂD½ ð¾ ĦÀ«½ F A¾ ¿vÂDÃ6¾SÂr¿ Û Ø/Ï'ÖOÌ/É9ÆjÇlȸÑ

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in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic Systems: Engineering Silicon from Neurobiology. 1st European Workshop on Neuromorphic Systems, Stirling (GB), Progress in Neural Processing, vol. 10, pp. 99-112, World Scientific Publishing, Singapore 1998

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in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic Systems: Engineering Silicon from Neurobiology. 1st European Workshop on Neuromorphic Systems, Stirling (GB), Progress in Neural Processing, vol. 10, pp. 99-112, World Scientific Publishing, Singapore 1998

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in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic Systems: Engineering Silicon from Neurobiology. 1st European Workshop on Neuromorphic Systems, Stirling (GB), Progress in Neural Processing, vol. 10, pp. 99-112, World Scientific Publishing, Singapore 1998

Page 14: in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic ... · !rÂD½ ð¾ ĦÀ«½ F A¾ ¿vÂDÃ6¾SÂr¿ Û Ø/Ï'ÖOÌ/É9ÆjÇlȸÑ

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in: L. S. Smith and A. Hamilton (Eds.): Neuromorphic Systems: Engineering Silicon from Neurobiology. 1st European Workshop on Neuromorphic Systems, Stirling (GB), Progress in Neural Processing, vol. 10, pp. 99-112, World Scientific Publishing, Singapore 1998