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| Presentation | 2008-11-08 13:00 [Invited Talk] Brain-inspired Integrated Systems with Time-domain Information Processing Takashi Morie, Hideki Tanaka, Daisuke Atuti, Keisuke Korekado, Kazuki Nakada (Kyushu Inst. of Tech.)  NC2008-68 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We have proposed merged analog-digital circuit architecture, which can perform multiply-and-accumulation and arbitrary nonlinear transformation operations using pulse modulation signals in the time domain, and have been developing various brain-inspired visual processing LSIs and neural network LSIs based on this architecture. Nonlinear transformation operation in the time domain is realized by using the voltage or current waveform having the same function shape as the nonlinear transformation. So far, we have adopted a scheme in which an arbitrary nonlinear waveform is shared with plural calculation circuits because the waveform generator circuit occupies a large chip area. In this scheme, each calculation circuit must operate synchronously. However, some processing models require asynchronous operation. Spike-timing dependent synaptic plasticity (STDP) is such a case. As another case, in this report, we introduce similarity (distance) calculation circuits that use a relative spike timing difference. We also show CMOS circuit implementations of a phase oscillator, which is a model of quasiperiodically-firing neurons, with both synchronous and asynchronous schemes. From circuit simulation results, it is expected that the operation time and power consumption are drastically reduced by asynchronous spike-timing event driven operation. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | time-domain information processing / CMOS integrated circuit / pulse-modulation signal / PWM/PPM / spiking neuron / phase oscillator / asynchronous operation / similarity calculation circuit | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 281, NC2008-68, pp. 55-60, Nov. 2008. | |
| Paper # | NC2008-68 | |
| Date of Issue | 2008-10-31 (NC) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | NC2008-68 |
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| Conference Information | |
| Committee | NC |
| Conference Date | 2008-11-07 - 2008-11-08 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Saga Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | NC |
| Conference Code | 2008-11-NC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Brain-inspired Integrated Systems with Time-domain Information Processing |
| Sub Title (in English) | |
| Keyword(1) | time-domain information processing |
| Keyword(2) | CMOS integrated circuit |
| Keyword(3) | pulse-modulation signal |
| Keyword(4) | PWM/PPM |
| Keyword(5) | spiking neuron |
| Keyword(6) | phase oscillator |
| Keyword(7) | asynchronous operation |
| Keyword(8) | similarity calculation circuit |
| 1st Author's Name | Takashi Morie |
| 1st Author's Affiliation | Kyushu Institute of Technology (Kyushu Inst. of Tech.) |
| 2nd Author's Name | Hideki Tanaka |
| 2nd Author's Affiliation | Kyushu Institute of Technology (Kyushu Inst. of Tech.) |
| 3rd Author's Name | Daisuke Atuti |
| 3rd Author's Affiliation | Kyushu Institute of Technology (Kyushu Inst. of Tech.) |
| 4th Author's Name | Keisuke Korekado |
| 4th Author's Affiliation | Kyushu Institute of Technology (Kyushu Inst. of Tech.) |
| 5th Author's Name | Kazuki Nakada |
| 5th Author's Affiliation | Kyushu Institute of Technology (Kyushu Inst. of Tech.) |
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| Speaker | Author-1 |
| Date Time | 2008-11-08 13:00:00 |
| Presentation Time | 60 minutes |
| Registration for | NC |
| Paper # | NC2008-68 |
| Volume (vol) | vol.108 |
| Number (no) | no.281 |
| Page | pp.55-60 |
| #Pages | 6 |
| Date of Issue | 2008-10-31 (NC) |
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