Author Archives: Yuzuki Morikawa

2026 Joint Convention, the Hokkaido Chapters of the Institutes of Electrical and Information Engineers

Mr. Saeki and Mr. Kawashima presented their works at 2026 Joint Convention, the Hokkaido Chapters of the Institutes of Electrical and Information Engineers, which was held at Hokkaido University of Science on Oct 31st – Nov 1st.

  • Yuya Saeki, Chenyu Zhao, Hiroshi Tsutsui, Takeo Ohgane, “An Evaluation of False-Positive Reduction Using Signal Power in Zero-Crossing-Rate-Based Ambulance Siren Detection with Difference Preprocessing,” Joint Conference of Electrical, Electronics and Information Engineers in Hokkaido, p. 102, Oct. 2026 (in Japanese). [URL]
  • Taiyoh Kawashima, Chenyu Zhao, Hiroshi Tsutsui, Takeo Ohgane, “Implementation of LUT-Based Fixed-Point Logarithmic Approximation and Evaluation of Its Resource Usage,” Joint Conference of Electrical, Electronics and Information Engineers in Hokkaido, p. 112, Nov. 2026 (in Japanese). [URL]

A student networking event was held during this convention. Students made presentations about their university, research activity, and student activity. From our laboratory, Mr. Kawashima, the treasurer of IEEE Hokkaido University Student Branch, gave a presentation on the activities of the IEEE Student Branch and the benefits of establishing a branch.

2025 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS 2025)

At the 2025 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS 2025), held in Bandung from November 4 to 7, Mr. Yamamura and Ms. Morikawa presented the following papers.

  • Naoya Yamamura, Chenyu Zhao, Hiroshi Tsutsui, Takeo Ohgane, “Evaluation of Bit-Width Effects in Fixed-Point FPGA-Optimized MFCC Computation via Software Simulation for HMM-Based Phrase Speech Recognition,” Proceedings of International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS), Nov. 2025.
  • Yuzuki Morikawa, Chenyu Zhao, Hiroshi Tsutsui, Takeo Ohgane, “Accuracy Evaluation of a Streaming-Based Resource-Efficient Mel Filter Bank Architecture with Fixed-Point Based Design Approaches,” Proceedings of International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS), Nov. 2025.