Counter-Based Broadcasting with Hop Count Aware Random Assessment Delay Extension for Wireless Sensor Networks. - Shintaro Izumi; Takashi Takeuchi; Takashi Matsuda; Hiroshi Kawaguchi 001; Chikara Ohta; Masahiko Yoshimoto (IEICE Trans. Commun., 2008)

A 34.7-mW quad-core MIQP solver processor for robot control. - Hiroki Noguchi; Junichi Tani; Yusuke Shimai; Masanori Nishino; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (CICC, 2010)

A 58-µW Single-Chip Sensor Node Processor with Communication Centric Design. - Shintaro Izumi; Takashi Takeuchi; Takashi Matsuda; Hyeokjong Lee; Toshihiro Konishi; Koh Tsuruda; Yasuharu Sakai; Hiroshi Kawaguchi 001; Chikara Ohta; Masahiko Yoshimoto (IEICE Trans. Electron., 2010)

A 40 nm 144 mW VLSI processor for realtime 60 kWord continuous speech recognition. - Guangji He; Takanobu Sugahara; Tsuyoshi Fujinaga; Yuki Miyamoto; Hiroki Noguchi; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (CICC, 2011)

Data Aggregation Protocol for Multiple Sound Sources Acquisition with Microphone Array Network. - Shintaro Izumi; Hiroki Noguchi; Tomoya Takagi; Koji Kugata; Shinpei Soda; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (ICCCN, 2011)

A 40-nm 640-µm2 45-dB opampless all-digital second-order MASH ΔΣ ADC. - Toshihiro Konishi; Hyeokjong Lee; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (ISCAS, 2011)

A Low-Power Multi Resolution Spectrum Sensing Architecture for a Wireless Sensor Network with Cognitive Radio. - Toshihiro Konishi; Shintaro Izumi; Koh Tsuruda; Hyeokjong Lee; Takashi Takeuchi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011)

A Low-Power Multi-Phase Oscillator with Transfer Gate Phase Coupler Enabling Even-Numbered Phase Output. - Toshihiro Konishi; Hyeokjong Lee; Shintaro Izumi; Takashi Takeuchi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2011)

A Low-Power Real-Time SIFT Descriptor Generation Engine for Full-HDTV Video Recognition. - Kosuke Mizuno; Hiroki Noguchi; Guangji He; Yosuke Terachi; Tetsuya Kamino; Tsuyoshi Fujinaga; Shintaro Izumi; Yasuo Ariki; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IEICE Trans. Electron., 2011)

Data-Intensive Sound Acquisition System with Large-scale Microphone Array. - Hiroki Noguchi; Tomoya Takagi; Koji Kugata; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (J. Inf. Process., 2011)

Implementing Virtual Agent as an Interface for Smart Home Voice Control. - Shinpei Soda; Masahide Nakamura; Shinsuke Matsumoto; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (APSEC, 2012)

Processor Coupling Architecture for Aggressive Voltage Scaling on Multicores. - Koji Kugata; Shinpei Soda; Yohei Nakata; Shunsuke Okumura; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (ARCS Workshops, 2012)

A 40-nm 168-mW 2.4×-real-time VLSI processor for 60-kWord continuous speech recognition. - Guangji He; Takanobu Sugahara; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (CICC, 2012)

Instantaneous Heart Rate detection using short-time autocorrelation for wearable healthcare systems. - Masanao Nakano; Toshihiro Konishi; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (EMBC, 2012)

Handsfree Voice Interface for Home Network Service Using a Microphone Array Network. - Shinpei Soda; Masahide Nakamura; Shinsuke Matsumoto; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (ICNC, 2012)

Neutron-induced soft error rate estimation for SRAM using PHITS. - Shusuke Yoshimoto; Takuro Amashita; Masayoshi Yoshimura; Yusuke Matsunaga; Hiroto Yasuura; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IOLTS, 2012)

A 51-dB SNDR DCO-based TDC using two-stage second-order noise shaping. - Toshihiro Konishi; Keisuke Okuno; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (ISCAS, 2012)

Bit error rate estimation in SRAM considering temperature fluctuation. - Yuki Kagiyama; Shunsuke Okumura; Koji Yanagida; Shusuke Yoshimoto; Yohei Nakata; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (ISQED, 2012)

A 62-dB SNDR second-order gated ring oscillator TDC with two-stage dynamic D-type flipflops as a quantization noise propagator. - Keisuke Okuno; Toshihiro Konishi; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (NEWCAS, 2012)

Architectural Study of HOG Feature Extraction Processor for Real-Time Object Detection. - Kosuke Mizuno; Yosuke Terachi; Kenta Takagi; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (SiPS, 2012)

A 61-dB SNDR 700 µm2 second-order all-digital TDC with low-jitter frequency shift oscillators and dynamic flipflops. - Toshihiro Konishi; Keisuke Okuno; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (VLSIC, 2012)

Divided Static Random Access Memory for Data Aggregation in Wireless Sensor Nodes. - Takashi Matsuda; Shintaro Izumi; Yasuharu Sakai; Takashi Takeuchi; Hidehiro Fujiwara; Hiroshi Kawaguchi 001; Chikara Ohta; Masahiko Yoshimoto (IEICE Trans. Commun., 2012)

A 40 nm 144 mW VLSI Processor for Real-Time 60-kWord Continuous Speech Recognition. - Guangji He; Takanobu Sugahara; Yuki Miyamoto; Tsuyoshi Fujinaga; Hiroki Noguchi; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IEEE Trans. Circuits Syst. I Regul. Pap., 2012)

Low-power hardware implementation of noise tolerant heart rate extractor for a wearable monitoring system. - Shintaro Izumi; Masanao Nakano; Ken Yamashita; Takahide Fujii; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (BIBE, 2013)

Noise-tolerant instantaneous heart rate and R-peak detection using short-term autocorrelation for wearable healthcare systems. - Takahide Fujii; Masanao Nakano; Ken Yamashita; Toshihiro Konishi; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (EMBC, 2013)

A 14 µA ECG processor with robust heart rate monitor for a wearable healthcare system. - Shintaro Izumi; Ken Yamashita; Masanao Nakano; Toshihiro Konishi; Hiroshi Kawaguchi 001; Hiromitsu Kimura; Kyoji Marumoto; Takaaki Fuchikami; Yoshikazu Fujimori; Hiroshi Nakajima; Toshikazu Shiga; Masahiko Yoshimoto (ESSCIRC, 2013)

A sub-100-milliwatt dual-core HOG accelerator VLSI for real-time multiple object detection. - Kenta Takagi; Kosuke Mizuno; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (ICASSP, 2013)

Temperature compensation using least mean squares for fast settling all-digital phase-locked loop. - Keisuke Okuno; Shintaro Izumi; Toshihiro Konishi; Song Dae-Woo; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (NEWCAS, 2013)

A 38 μA wearable biosignal monitoring system with near field communication. - Ken Yamashita; Shintaro Izumi; Masanao Nakano; Takahide Fujii; Toshihiro Konishi; Hiroshi Kawaguchi 001; Hiromitsu Kimura; Kyoji Marumoto; Takaaki Fuchikami; Yoshikazu Fujimori; Hiroshi Nakajima; Toshikazu Shiga; et al. (NEWCAS, 2013)

A 40-NM 54-MW 3×-real-time VLSI processor for 60-kWord continuous speech recognition. - Guangji He; Yuki Miyamoto; Kumpei Matsuda; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (SiPS, 2013)

A 168-mW 2.4X-Real-Time 60-kWord Continuous Speech Recognition Processor VLSI. - Guangji He; Takanobu Sugahara; Yuki Miyamoto; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IEICE Trans. Electron., 2013)

An Opampless Second-Order MASH ΔΣ ADC with Using Gated Ring Oscillator Time-to-Digital Converter. - Toshihiro Konishi; Keisuke Okuno; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2013)

A Second-Order All-Digital TDC with Low-Jitter Frequency Shift Oscillators and Dynamic Flipflops. - Toshihiro Konishi; Keisuke Okuno; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (IEICE Trans. Electron., 2013)

A Sub-100 mW Dual-Core HOG Accelerator VLSI for Parallel Feature Extraction Processing for HDTV Resolution Video. - Kosuke Mizuno; Kenta Takagi; Yosuke Terachi; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IEICE Trans. Electron., 2013)

An FPGA Implementation of a HOG-based Object Detection Processor. - Kosuke Mizuno; Yosuke Terachi; Kenta Takagi; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IPSJ Trans. Syst. LSI Des. Methodol., 2013)

Normally-off technologies for healthcare appliance. - Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto; Yoshikazu Fujimori (ASP-DAC, 2014)

A 2.4 pJ ferroelectric-based non-volatile flip-flop with 10-year data retention capability. - Hiromitsu Kimura; Takaaki Fuchikami; Kyoji Marumoto; Yoshikazu Fujimori; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (A-SSCC, 2014)

A 6.14µA normally-off ECG-SoC with noise tolerant heart rate extractor for wearable healthcare systems. - Shintaro Izumi; Ken Yamashita; Masanao Nakano; Tomoki Nakagawa; Yuki Kitahara; Koji Yanagida; Shusuke Yoshimoto; Hiroshi Kawaguchi 001; Hiromitsu Kimura; Kyoji Marumoto; Takaaki Fuchikami; Yoshikazu Fujimori; et al. (BioCAS, 2014)

Noise tolerant QRS detection using template matching with short-term autocorrelation. - Yozaburo Nakai; Shintaro Izumi; Masanao Nakano; Ken Yamashita; Takahide Fujii; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (EMBC, 2014)

An 8-bit I/O-sized ADC with second-order TDC and MOM capacitor voltage-to-time converter. - Keisuke Okuno; Toshihiro Konishi; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (ICECS, 2014)

A 2.23 ps RMS jitter 3 μs fast settling ADPLL using temperature compensation PLL controller. - Keisuke Okuno; Kana Masaki; Shintaro Izumi; Toshihiro Konishi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (ICECS, 2014)

A 6T-4C shadow memory using plate line and word line boosting. - Tomoki Nakagawa; Shintaro Izumi; Shusuke Yoshimoto; Koji Yanagida; Yuki Kitahara; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (ISCAS, 2014)

A 54-mw 3×-real-time 60-kword continuous speech recognition processor VLSI. - Guangji He; Yuki Miyamoto; Kumpei Matsuda; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IEICE Electron. Express, 2014)

STT-MRAM Operating at 0.38V Using Negative-Resistance Sense Amplifier. - Yohei Umeki; Koji Yanagida; Shusuke Yoshimoto; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001; Koji Tsunoda; Toshihiro Sugii (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2014)

A Real-time Scalable Object Detection System using Low-power HOG Accelerator VLSI. - Kenta Takagi; Kotaro Tanaka; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (J. Signal Process. Syst., 2014)

A 14µA ECG processor with noise tolerant heart rate extractor and FeRAM for wearable healthcare systems. - Yozaburo Nakai; Shintaro Izumi; Ken Yamashita; Masanao Nakano; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (ASP-DAC, 2015)

A negative-resistance sense amplifier for low-voltage operating STT-MRAM. - Yohei Umeki; Koji Yanagida; Shusuke Yoshimoto; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001; Koji Tsunoda; Toshihiro Sugii (ASP-DAC, 2015)

Analysis of Soft Error Propagation Considering Masking Effects on Re-Convergent Path. - Yuta Kimi; Go Matsukawa; Shuhei Yoshida; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (ATS, 2015)

A 298-fJ/writecycle 650-fJ/readcycle 8T three-port SRAM in 28-nm FD-SOI process technology for image processor. - Haruki Mori; Tomoki Nakagawa; Yuki Kitahara; Yuta Kawamoto; Kenta Takagi; Shusuke Yoshimoto; Shintaro Izumi; Koji Nii; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (CICC, 2015)

Large displacement haptic stimulus actuator using piezoelectric pump for wearable devices. - Taisuke Kodama; Shintaro Izumi; Kana Masaki; Hiroshi Kawaguchi 001; Kazusuke Maenaka; Masahiko Yoshimoto (EMBC, 2015)

Non-contact and noise tolerant heart rate monitoring using microwave doppler sensor and range imagery. - Daichi Matsunaga; Shintaro Izumi; Keisuke Okuno; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (EMBC, 2015)

Physical activity group classification algorithm using triaxial acceleration and heart rate. - Motofumi Nakanishi; Shintaro Izumi; Sho Nagayoshi; Hironori Sato; Hiroshi Kawaguchi 001; Masahiko Yoshimoto; Takafumi Ando; Satoshi Nakae; Chiyoko Usui; Tomoko Aoyama; Shigeho Tanaka (EMBC, 2015)

A more acceptable endoluminal implantation for remotely monitoring ingestible sensors anchored to the stomach wall. - Hidetoshi Ohta; Shintaro Izumi; Masahiko Yoshimoto (EMBC, 2015)

An accurate soft error propagation analysis technique considering temporal masking disablement. - Yuta Kimi; Go Matsukawa; Shuhei Yoshida; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IOLTS, 2015)

A low power 6T-4C non-volatile memory using charge sharing and non-precharge techniques. - Tomoki Nakagawa; Shintaro Izumi; Koji Yanagida; Yuki Kitahara; Shusuke Yoshimoto; Yohei Umeki; Haruki Mori; Hiroto Kitahara; Hiroshi Kawaguchi 001; Hiromitsu Kimura; Kyoji Marumoto; Takaaki Fuchikami; et al. (ISCAS, 2015)

A ferroelectric-based non-volatile flip-flop for wearable healthcare systems. - Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto; Hiromitsu Kimura; Takaaki Fuchikami; Kyoji Marumoto; Yoshikazu Fujimori (NVMTS, 2015)

Noise Tolerant Heart Rate Extraction Algorithm Using Short-Term Autocorrelation for Wearable Healthcare Systems. - Shintaro Izumi; Masanao Nakano; Ken Yamashita; Yozaburo Nakai; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IEICE Trans. Inf. Syst., 2015)

A Fast Settling All Digital PLL Using Temperature Compensated Oscillator Tuning Word Estimation Algorithm. - Keisuke Okuno; Shintaro Izumi; Kana Masaki; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2015)

An I/O-Sized ADC with Second-Order TDC and MOM Capacitor Voltage-to-Time Converter. - Keisuke Okuno; Toshihiro Konishi; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (IEICE Trans. Electron., 2015)

Low-Jitter Design for Second-Order Time-to-Digital Converter Using Frequency Shift Oscillators. - Keisuke Okuno; Toshihiro Konishi; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2015)

A Wearable Healthcare System With a 13.7 µ A Noise Tolerant ECG Processor. - Shintaro Izumi; Ken Yamashita; Masanao Nakano; Hiroshi Kawaguchi 001; Hiromitsu Kimura; Kyoji Marumoto; Takaaki Fuchikami; Yoshikazu Fujimori; Hiroshi Nakajima; Toshikazu Shiga; Masahiko Yoshimoto (IEEE Trans. Biomed. Circuits Syst., 2015)

Normally Off ECG SoC With Non-Volatile MCU and Noise Tolerant Heartbeat Detector. - Shintaro Izumi; Ken Yamashita; Masanao Nakano; Shusuke Yoshimoto; Tomoki Nakagawa; Yozaburo Nakai; Hiroshi Kawaguchi 001; Hiromitsu Kimura; Kyoji Marumoto; Takaaki Fuchikami; Yoshikazu Fujimori; Hiroshi Nakajima; et al. (IEEE Trans. Biomed. Circuits Syst., 2015)

Capacitively coupled ECG sensor using a single electrode with adaptive power-line noise cancellation. - Yuta Kawamoto; Shintaro Izumi; Yoshito Tanaka; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (BHI, 2016)

Non-contact Instantaneous Heart Rate Monitoring Using Microwave Doppler Sensor and Time-Frequency Domain Analysis. - Daichi Matsunaga; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (BIBE, 2016)

Adaptive noise cancellation method for capacitively coupled ECG sensor using single insulated electrode. - Yoshito Tanaka; Shintaro Izumi; Yuta Kawamoto; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (BioCAS, 2016)

Swallowable sensing device for long-term gastrointestinal tract monitoring. - Ryota Nakamura; Shintaro Izumi; Hiroshi Kawaguchi 001; Hidetoshi Ohta; Masahiko Yoshimoto (EMBC, 2016)

Low-power metabolic equivalents estimation algorithm using adaptive acceleration sampling. - Mio Tsukahara; Motofumi Nakanishi; Shintaro Izumi; Yozaburo Nakai; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (EMBC, 2016)

An low-energy 8T dual-port SRAM for image processor with selective sourceline drive scheme in 28-nm FD-SOI process technology. - Haruki Mori; Tomoki Nakagawa; Yuki Kitahara; Yuta Kawamoto; Kenta Takagi; Shusuke Yoshimoto; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (ICECS, 2016)

A 15-μA metabolic equivalents monitoring system using adaptive acceleration sampling and normally off computing. - Mio Tsukahara; Shintaro Izumi; Motofumi Nakanishi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto; Hiromitsu Kimura; Kyoji Marumoto; Takaaki Fuchikami; Yoshikazu Fujimori (ICECS, 2016)

An soft error propagation analysis considering logical masking effect on re-convergent path. - Shuhei Yoshida; Go Matsukawa; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IOLTS, 2016)

Error Propagation Analysis for Single Event Upset considering Masking Effects on Re-Convergent Path. - Go Matsukawa; Yuta Kimi; Shuhei Yoshida; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2016)

A 28-nm 484-fJ/writecycle 650-fJ/readcycle 8T Three-Port FD-SOI SRAM for Image Processor. - Haruki Mori; Yohei Umeki; Shusuke Yoshimoto; Shintaro Izumi; Koji Nii; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IEICE Trans. Electron., 2016)

A Counter-based Read Circuit Tolerant to Process Variation for 0.4-V Operating STT-MRAM. - Yohei Umeki; Koji Yanagida; Shusuke Yoshimoto; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001; Koji Tsunoda; Toshihiro Sugii (IPSJ Trans. Syst. LSI Des. Methodol., 2016)

A 19-μA metabolic equivalents monitoring SoC using adaptive sampling. - Mio Tsukahara; Shintaro Izumi; Motofumi Nakanishi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto; Hiromitsu Kimura; Kyoji Marumoto; Takaaki Fuchikami; Yoshikazu Fujimori (ASP-DAC, 2017)

Wearable pulse wave velocity sensor using flexible piezoelectric film array. - Takumi Katsuura; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001; Shusuke Yoshimoto; Tsuyoshi Sekitani (BioCAS, 2017)

Capacitively coupled ECG sensor system with digitally assisted noise cancellation for wearable application. - Yuki Nagasato; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (BioCAS, 2017)

Non-contact biometric identification and authentication using microwave Doppler sensor. - Takaaki Okano; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (BioCAS, 2017)

A swallowable sensing device platform with wireless power feeding and chemical reaction actuator. - Ryota Nakamura; Shintaro Izumi; Hiroshi Kawaguchi 001; Hidetoshi Ohta; Masahiko Yoshimoto (EMBC, 2017)

A layer-block-wise pipeline for memory and bandwidth reduction in distributed deep learning. - Haruki Mori; Tetsuya Youkawa; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001; Atsuki Inoue (MLSP, 2017)

FPGA implementation of object recognition processor for HDTV resolution video using sparse FIND feature. - Yuri Nishizumi; Go Matsukawa; Koichi Kajihara; Taisuke Kodama; Shintaro Izumi; Hiroshi Kawaguchi 001; Chikako Nakanishi; Toshio Goto; Takeo Kato; Masahiko Yoshimoto (SiPS, 2017)

A low power, VLSI object recognition processor using Sparse FIND feature for 60 fps HDTV resolution video. - Go Matsukawa; Taisuke Kodama; Yuri Nishizumi; Koichi Kajihara; Chikako Nakanishi; Shintaro Izumi; Hiroshi Kawaguchi 001; Toshio Goto; Takeo Kato; Masahiko Yoshimoto (IEICE Electron. Express, 2017)

Delayed Weight Update for Faster Convergence in Data-Parallel Deep Learning. - Tetsuya Youkawa; Haruki Mori; Yuki Miyauchi; Kazuki Yamada; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (GlobalSIP, 2018)

28-nm FD-SOI Dual-Port SRAM with MSB-Based Inversion Logic for Low-Power Deep Learning. - Haruki Mori; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (ICECS, 2018)

Sampling Rate Reduction for Wearable Heart Rate Variability Monitoring. - Yuki Nishikawa; Shintaro Izumi; Yuji Yano; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (ISCAS, 2018)

Hardware Implementation of Autoregressive Model Estimation Using Burg's Method for Low-Energy Spectral Analysis. - Koichi Kajihara; Shintaro Izumi; Seiya Yoshida; Yuji Yano; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (SiPS, 2018)

Adaptive Learning Rate Adjustment with Short-Term Pre-Training in Data-Parallel Deep Learning. - Kazuki Yamada; Haruki Mori; Tetsuya Youkawa; Yuki Miyauchi; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (SiPS, 2018)

A low power, VLSI object recognition processor using Sparse FIND feature for 60 fps HDTV resolution video [IEICE Electronics Express Vol. 14(2017) No. 15 pp. 20170668]. - Go Matsukawa; Taisuke Kodama; Yuri Nishizumi; Koichi Kajihara; Chikako Nakanishi; Shintaro Izumi; Hiroshi Kawaguchi 001; Toshio Goto; Takeo Kato; Masahiko Yoshimoto (IEICE Electron. Express, 2018)

A 11.3-µA Physical Activity Monitoring System Using Acceleration and Heart Rate. - Motofumi Nakanishi; Shintaro Izumi; Mio Tsukahara; Hiroshi Kawaguchi 001; Hiromitsu Kimura; Kyoji Marumoto; Takaaki Fuchikami; Yoshikazu Fujimori; Masahiko Yoshimoto (IEICE Trans. Electron., 2018)

An IoT Sensor Node SoC with Dynamic Power Scheduling for Sustainable Operation in Energy Harvesting Environment. - Yuji Yano; Seiya Yoshida; Shintaro Izumi; Hiroshi Kawaguchi 001; Tetsuya Hirose; Masaya Miyahara; Teruki Someya; Kenichi Okada 001; Ippei Akita; Yoshihiko Kurui; Hideyuki Tomizawa; Masahiko Yoshimoto (A-SSCC, 2019)

A Heartbeat Interval Error Compensation Method Using Multiple Linear Regression for Photoplethysmography Sensors. - Seiya Yoshida; Shintaro Izumi; Yuki Nishikawa; Kento Watanabe; Kana Sasai; Yuji Yano; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (BioCAS, 2019)

Classification Algorithm for Nocturnal Hypoxemia Using Nocturnal Pulse Oximetry. - Shintaro Izumi; Tatsuya Nagano; Asuka Yoshizaki; Yoshihiro Nishimura (EMBC, 2019)

A Low-Power Photoplethysmography Sensor using Correlated Double Sampling and Reference Readout Circuit. - Kana Sasai; Shintaro Izumi; Kento Watanabe; Yuji Yano; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IEEE SENSORS, 2019)

Noise Evaluation System for Biosignal Sensors Using Pseudo-Skin and Helmholtz Coil. - Misaki Inaoka; Shintaro Izumi; Shusuke Yoshimoto; Toshikazu Nezu; Yuki Noda; Teppei Araki; Takafumi Uemura; Tsuyoshi Sekitani (ISMICT, 2019)

Non-Contact Instantaneous Heart Rate Extraction System Using 24-GHz Microwave Doppler Sensor. - Shintaro Izumi; Takaaki Okano; Daichi Matsunaga; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IEICE Trans. Commun., 2019)

Recent Progress of Biomedical Processor SoC for Wearable Healthcare Application: A Review. - Masahiko Yoshimoto; Shintaro Izumi (IEICE Trans. Electron., 2019)

Low-Noise Photoplethysmography Sensor Using Correlated Double Sampling for Heartbeat Interval Acquisition. - Kento Watanabe; Shintaro Izumi; Kana Sasai; Yuji Yano; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IEEE Trans. Biomed. Circuits Syst., 2019)

A 28-nm FD-SOI 8T Dual-Port SRAM for Low-Energy Image Processor With Selective Sourceline Drive Scheme. - Haruki Mori; Tomoki Nakagawa; Yuki Kitahara; Yuta Kawamoto; Kenta Takagi; Shusuke Yoshimoto; Shintaro Izumi; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IEEE Trans. Circuits Syst. I Regul. Pap., 2019)

Energy-Efficient Spectral Analysis Method Using Autoregressive Model-Based Approach for Internet of Things. - Seiya Yoshida; Shintaro Izumi; Koichi Kajihara; Yuji Yano; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IEEE Trans. Circuits Syst. I Regul. Pap., 2019)

Multimodal Cardiovascular Information Monitor Using Piezoelectric Transducers for Wearable Healthcare. - Takaaki Okano; Shintaro Izumi; Takumi Katsuura; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (J. Signal Process. Syst., 2019)

A 1.15-TOPS 6.57-TOPS/W DNN Processor for Multi-Scale Object Detection. - Reiya Kawamoto; Masakazu Taichi; Masaya Kabuto; Daisuke Watanabe; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001 (AICAS, 2020)

An Architectural Study for Inference Coprocessor Core at the Edge in IoT Sensing. - Daisuke Watanabe; Yuji Yano; Shintaro Izumi; Hiroshi Kawaguchi 001; Kiyoshi Takeuchi; Toshiro Hiramoto; Shoichi Iwai; Masami Murakata; Masahiko Yoshimoto (AICAS, 2020)

Doppler shift compensation technique for ultrasonic DSSS ranging system. - Toru Ishii; Yukiko Yoshikawa; Shintaro Izumi; Hiroshi Kawaguchi 001 (I2MTC, 2020)

Printable Transparent Microelectrodes toward Mechanically and Visually Imperceptible Electronics. - Ashuya Takemoto; Teppei Araki; Takafumi Uemura; Yuki Noda; Shusuke Yoshimoto; Shintaro Izumi; Shuichi Tsuruta; Tsuyoshi Sekitani (Adv. Intell. Syst., 2020)

Heartbeat Interval Error Compensation Method for Low Sampling Rates Photoplethysmography Sensors. - Kento Watanabe; Shintaro Izumi; Yuji Yano; Hiroshi Kawaguchi 001; Masahiko Yoshimoto (IEICE Trans. Commun., 2020)

A 1.15-TOPS 6.57-TOPS/W Neural Network Processor for Multi-Scale Object Detection With Reduced Convolutional Operations. - Reiya Kawamoto; Masakazu Taichi; Masaya Kabuto; Daisuke Watanabe; Shintaro Izumi; Masahiko Yoshimoto; Hiroshi Kawaguchi 001; Go Matsukawa; Toshio Goto; Motoshi Kojima (IEEE J. Sel. Top. Signal Process., 2020)

12.5-m Distance Measurement in High-Interference Environment Using Ultrasonic Array Sensors. - Yukiko Yoshikawa; Yuto Yasuda; Toru Ishii; Shintaro Izumi; Hiroshi Kawaguchi 001 (I2MTC, 2021)

Subcentimeter Precision Ranging System for Moving Targets With a Doppler-Effect- Compensated Ultrasonic Direct Sequence Spread Spectrum. - Toru Ishii; Yukiko Yoshikawa; Shintaro Izumi; Hiroshi Kawaguchi 001 (IEEE Trans. Instrum. Meas., 2021)

20-µs Accuracy Time-Synchronization Method using Bluetooth Low Energy for Internet-of-Things Sensors. - Masayasu Harada; Shintaro Izumi; Ryosuke Kozeni; Yukiko Yoshikawa; Toru Ishii; Hiroshi Kawaguchi 001; Shohei Uemura; Kaname Araki (CCNC, 2022)

Non-contact Atrial Fibrillation Detection using a 24-GHz Microwave Doppler Radar. - Shintaro Izumi; Sho Murase; Itsumi Fukuda; Kenta Taki; Kazunori Toyama; Tadashi Inuzuka; Hideki Mochizuki; Hiroshi Kawaguchi 001 (IEEE SENSORS, 2022)

Wearable Perspiration Volume Sensor Using Dual-Frequency Impedance Measurement. - Ryo Takamatsu; Shogo Amano; Shintaro Izumi; Hiroshi Ohta; Toshikazu Nezu; Yuki Noda; Teppei Araki; Takafumi Uemura; Tsuyoshi Sekitani; Hiroshi Kawaguchi 001 (IEEE SENSORS, 2022)

Heartbeat Waveform Measurement Results of Several Persons Using a Small Card-Sized VHF-band Hearbeat Sensor Module. - Saki Wada; Kengo Nishimoto; Yoshio Inasawa; Shintaro Izumi (IEEE SENSORS, 2022)

Machine Learning-Based Severity Classification of Spinal Cord Injury Patients Using Straight Leg Raising Test. - Ryoto Yoshikura; Shintaro Izumi; Tatsuya Sugimoto; Hiroshi Kawaguchi 001 (IEEE SENSORS, 2022)

Quantitative Evaluation Method of Timed Up and Go Test for Hospitalized Patients Using Inertial Sensors. - Tatsuya Sugimoto; Ryoto Yoshikura; Hiroshi Kawaguchi 001; Shintaro Izumi (BSN, 2023)

Estimated Results of R-R Interval Using a Small Card-Sized VHF-Band Contactless Heartbeat Sensor Module. - Saki Wada; Kengo Nishimoto; Yoshio Inasawa; Shintaro Izumi (BSN, 2023)

ArgusEyes: Interactions by Combining Multiple Modules with Optical Flow Sensors. - Ryosuke Shibata; Hisanori Tanaka; Kodai Ito; Shintaro Izumi; Kazuki Takashima; Yuichi Itoh (CHI Extended Abstracts, 2024)

Estimation of the Stages of Labor Using a Multichannel Electrohysterogram Sensor and Conditional Variational Autoencoder. - Minon Kushihashi; Shintaro Izumi; Hirokazu Iida; Shusuke Yoshimoto; Tsuyoshi Takiuchi; Kazuya Mimura; Takeshi Kanagawa; Aiko Kakigano; Tsuyoshi Sekitani; Masayuki Endoh; Tadashi Kimura; Hiroshi Kawaguchi 001 (EMBC, 2024)

Sleep Apnea Detection Using Oxygen Saturation During Nocturnal Sleep. - Nobuhito Taniguchi; Hiroshi Kawaguchi 001; Tatsuya Nagano; Shintaro Izumi (EMBC, 2024)

15-ch Wearable Body Surface Potential Sensor for Wireless Electrocardiogram Monitoring. - Yusaku Goto; Shintaro Izumi; Ryotaro Ohara; Teppei Araki; Sho Murase; Hiroshi Kawaguchi 001 (ICCE, 2024)

An Ultrasound-Based Surveillance System for Bathroom Posture and Location Estimation. - Shun Sato; Ryotaro Ohara; M. Shahrul Amir Kamarulzaman; Yuto Yasuda; Shintaro Izumi; Hiroshi Kawaguchi 001 (ICCE, 2024)

Wearable Perspiration Characteristic Sensor Using Bi-Directional Driver Circuit. - Ryo Takamatsu; Shintaro Izumi; Hiroshi Kawaguchi 001 (ICCE, 2024)

Flexible, Non-Invasive, and Wearable Fish Heart Rate Monitoring Tag for Guiding Aquaculture in Marine Ranching. - Hai Zhang; Zihong Wei; Diye Wu; Zhuhang Dai; Danny Hughes 001; Tohru Sugahara; Shintaro Izumi; Yang Yang 048 (IEEE SENSORS, 2024)

Estimating Human Activities in Bathroom Through Sound Event Detection in Embedded Systems. - Koki Mori; Ryotaro Ohara; Takayuki Genda; Shun Sato; Shintaro Izumi; Hiroshi Kawaguchi 001 (IOTSMS, 2024)

MicroSync: Sub-Micro Second Accuracy Wireless Time Synchronization Service. - Ryotaro Ohara; Shintaro Izumi; Shoya Imanaka; Tetsuo Yamamura; Toru Ishii; Hiroshi Kawaguchi 001 (IEEE Access, 2024)

A Case Study for Improving Performances of Deep-Learning Processor with MRAM. - Ryotaro Ohara; Atsushi Fukunaga; Masakazu Taichi; Masaya Kabuto; Riku Hamabe; Masato Ikegawa; Shintaro Izumi; Hiroshi Kawaguchi 001 (IPSJ Trans. Syst. LSI Des. Methodol., 2024)

Low-Power High-Accuracy Time Synchronization Using PPI for Bluetooth-Based IoT Systems. - Ryotaro Ohara; Shintaro Izumi; Shoya Imanaka; Tetsuo Yamamura; Toru Ishii; Hiroshi Kawaguchi 001 (ICCE, 2025)

1W8R 20T SRAM Codebook for 20% Energy Reduction in Mixed-precision Deep-learning Inference Processor System. - Ryotaro Ohara; Masaya Kabuto; Atsushi Fukunaga; Masakazu Taichi; Yuto Yasuda; Riku Hamabe; Shintaro Izumi; Hiroshi Kawaguchi 001 (IPSJ Trans. Syst. LSI Des. Methodol., 2025)