Development of theories on asynchronous discrete-state system and their applications to designs of small and low-power neural prosthesis devices

• Project/Area Number: 18K11482
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 61040:Soft computing-related
• Research Institution: Hosei University
• Principal Investigator: Torikai Hiroyuki 法政大学, 理工学部, 教授 (20318603)
• Project Period (FY): 2018-04-01 – 2021-03-31
• Project Status: Completed (Fiscal Year 2020)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 神経補綴 / 非同期離散状態システム

Outline of Final Research Achievements

In this study, we developed a design method of biomimetic hardware whose dynamics is described by an asynchronous discrete state map. For example, we obtained the following results, (1) We developed an asynchronous discrete state neuron model and related theoretical analysis method. (2) We developed an asynchronous discrete state central pattern generator model and related systematic design method. (3) We developed an asynchronous discrete state neuron model and related efficient implementation method.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果は，小型で低消費電力な神経補綴装置を開発するための基本技術となる．神経補綴装置の具体例としては，人工内耳や人工海馬などが挙げられる．

Research Products

• [Journal Article] A Novel Hardware-Efficient Central Pattern Generator Model based on Asynchronous Cellular Automaton Dynamics for Controlling Hexapod Robot (2020)
  • Author(s): Kentaro Takeda and Hiroyuki Torikai
  • Journal Title: IEEE Access Volume: 8 Pages: 139609-139624
  • DOI: 10.1109/access.2020.3012706
  • Peer Reviewed / Open Access
• [Journal Article] A Novel Asynchronous CA Neuron Model: Design of Neuron-like Nonlinear Responses based on Novel Bifurcation Theory of Asynchronous Sequential Logic Circuit (2020)
  • Author(s): Kentaro Takeda, Hiroyuki Torikai
  • Journal Title: IEEE Transactions on Circuits and Systems I: Regular Papers Volume: Volume 67, Issue 6 Issue: 6 Pages: 1989-2001
  • DOI: 10.1109/tcsi.2020.2971786
  • Peer Reviewed / Open Access
• [Journal Article] A Novel Generalized Hardware-Efficient Neuron Model Based on Asynchronous CA Dynamics and Its Biologically Plausible On-FPGA Learnings (2019)
  • Author(s): Naka Taiki、Torikai Hiroyuki
  • Journal Title: IEEE Transactions on Circuits and Systems II: Express Briefs Volume: 66 Issue: 7 Pages: 1247-1251
  • DOI: 10.1109/tcsii.2018.2876974
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A novel spike-train generator suitable for QCA implementation towards UWB-IR applications (2018)
  • Author(s): Takeda Kentaro、Torikai Hiroyuki
  • Journal Title: Nonlinear Theory and Its Applications, IEICE Volume: 9 Issue: 4 Pages: 436-452
  • DOI: 10.1587/nolta.9.436
  • NAID: 130007492869
  • ISSN: 2185-4106
  • Peer Reviewed / Open Access
• [Journal Article] A novel hardware-efficient CPG model based on asynchronous cellular automaton (2018)
  • Author(s): Takeda Kentaro、Torikai Hiroyuki
  • Journal Title: IEICE Electronics Express Volume: 15 Issue: 11 Pages: 20180387-20180387
  • DOI: 10.1587/elex.15.20180387
  • NAID: 130007395628
  • ISSN: 1349-2543
  • Peer Reviewed / Open Access
• [Journal Article] A Novel Generalized PWC Neuron Model: Theoretical Analyses and Efficient Design of Bifurcation Mechanisms of Bursting (2018)
  • Author(s): Chiaki Matsuda and Hiroyuki Torikai
  • Journal Title: IEEE Transactions on Circuits and Systems Part II Volume: 印刷中 Issue: 11 Pages: 1738-1742
  • DOI: 10.1109/tcsii.2017.2760509
  • Peer Reviewed
• [Presentation] A novel hardware-efficient CPG model based on asynchronous coupling of cellular automaton phase oscillators for a hexapod robot (2020)
  • Author(s): Kentaro Takeda and Hiroyuki Torikai
  • Organizer: IEEE-INNS International Joint Conference on Neural Networks
  • Int'l Joint Research
• [Presentation] A Novel Design Method of Multi-Compartment Soma-Dendrite-Spine Model having Nonlinear Asynchronous CA Dynamics and its Applications to STDP-based Learning and FPGA Implementation (2020)
  • Author(s): Masato Ishikawa and Hiroyuki Torikai
  • Organizer: IEEE-INNS International Joint Conference on Neural Networks
  • Int'l Joint Research
• [Presentation] A novel hardware-efficient CPG model for a hexapod robot based on nonlinear dynamics of coupled asynchronous cellular automaton oscillators (2019)
  • Author(s): Kentaro Takeda and Hiroyuki Torikai
  • Organizer: IEEE-INNS International Joint Conference on Neural Networks
  • Int'l Joint Research