| Presentation | 2008-11-08 Brain-inspired Integrated Systems with Time-domain Information Processing Takashi MORIE, Hideki TANAKA, Daisuke ATUTI, Keisuke KOREKADO, Kazuki NAKADA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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-firin 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) |
| Keyword(in English) | time-domain information processing / CMOS integrated circuit / pulse-modulation signal / PWM/PPM / spiking neuron / phase oscillator / asynchronous operation / similarity calculation circuit |
| Paper # | NC2008-68 |
| Date of Issue |
| Conference Information | |
| Committee | NC |
|---|---|
| Conference Date | 2008/10/31(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Neurocomputing (NC) |
|---|---|
| Language | JPN |
| 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 | Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology() |
| 2nd Author's Name | Hideki TANAKA |
| 2nd Author's Affiliation | Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology |
| 3rd Author's Name | Daisuke ATUTI |
| 3rd Author's Affiliation | Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology |
| 4th Author's Name | Keisuke KOREKADO |
| 4th Author's Affiliation | Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology |
| 5th Author's Name | Kazuki NAKADA |
| 5th Author's Affiliation | Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology |
| Date | 2008-11-08 |
| Paper # | NC2008-68 |
| Volume (vol) | vol.108 |
| Number (no) | 281 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |