Nobukazu Takai

According to our database, Nobukazu Takai authored at least 39 papers between 1998 and 2020.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2020

Determination of circuit topology and element values from desired characteristics by machine learning.

Akihiro Saito, Nobukazu Takai, Satoshi Konno

Proceedings of the 27th IEEE International Conference on Electronics, Circuits and Systems, 2020

2019

Self-improvement of OPAmp parameters using Q-Learning.

Nobukazu Takai, Masafumi Fukuda, Masahiro Saruta

Proceedings of the 16th International Conference on Synthesis, 2019

2018

Inference of Suitable for Required Specification Analog Circuit Topology using Deep Learning.

Teruki Matsuba, Nobukazu Takai, Masafumi Fukuda, Yusuke Kubo

Proceedings of the 2018 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS), 2018

Output Voltage Ripple Compensation for Switching Power Supply in EMI Reduction Method with Theoretical Analysis.

Takayuki Arai, Natsuko Miki, Yifei Sun, Nobukazu Takai

Proceedings of the 2018 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS), 2018

2017

Automatic Design of Operational Amplifier Utilizing both Equation-Based Method and Genetic Algorithm.

Kento Suzuki, Nobukazu Takai, Yoshiki Sugawara, Masato Kato

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2017

EMI reduction technique with noise spread spectrum using swept frequency modulation for hysteretic DC-DC converters.

Natsuko Miki, Nobukazu Tsukiji, Koyo Asaishi, Yasunori Kobori, Nobukazu Takai, Hamo Kobayashi

Proceedings of the 2017 International Symposium on Intelligent Signal Processing and Communication Systems, 2017

Noise spread spectrum with adjustable notch frequency in complex pulse coding controlled DC-DC converters.

Yasunori Kobori, Nobukazu Tsukiji, Takuya Arafune, Manimel Wadu Sahan, Dulara Yifei Sun, Nobukazu Takai, Haruo Kobayashi

Proceedings of the 2017 International Symposium on Intelligent Signal Processing and Communication Systems, 2017

Automatic design of the analog integrated circuit based on Equation-Based and Characterize results.

Tsukasa Ishii, Nobukazu Takai, Masafumi Fukuda

Proceedings of the 2017 International Symposium on Intelligent Signal Processing and Communication Systems, 2017

OP-AMP sizing by inference of element values using machine learning.

Masafumi Fukuda, Tsukasa Ishii, Nobukazu Takai

Proceedings of the 2017 International Symposium on Intelligent Signal Processing and Communication Systems, 2017

Delay-time suppression technique for DC/DC buck converter using voltage mode PWM control.

Manimel Wadu Sahan Dulara, Nobukazu Tsukiji, Yasunori Kobori, Koyo Asaishi, Nobukazu Takai, Haruo Kobayashi

Proceedings of the 2017 International Symposium on Intelligent Signal Processing and Communication Systems, 2017

2015

Automatic design of RC polyphase filters with small element value spread using genetic algorithm.

Nobukazu Takai, Yoshiki Sugawara, Kento Suzuki, Takayuki Negishi, Hiroaki Seki, Masato Kato

Proceedings of the 2015 International Symposium on Intelligent Signal Processing and Communication Systems, 2015

Comparator circuits automation by combination of distributed genetic algorithm and HSPICE optimization.

Kento Suzuki, Nobukazu Takai, Masato Kato, Hiroaki Seki, Yoshiki Sugawara, Haruo Kobayashi

Proceedings of the 2015 IEEE 11th International Conference on ASIC, 2015

High efficiency single-inductor dual-output DC-DC converter with ZVS-PWM control.

Yoshiki Sunaga, Naoya Shiraishi, Koyo Asaishi, Nobukazu Tsukiji, Yasunori Kobori, Nobukazu Takai, Haruo Kobayashi

Proceedings of the 2015 IEEE 11th International Conference on ASIC, 2015

Automatic design of doubly-terminated RC polyphase filters by using distributed genetic algorithm.

Yoshiki Sugawara, Nobukazu Takai, Masato Kato, Hiroaki Seki, Kento Suzuki, Haruo Kobayashi

Proceedings of the 2015 IEEE 11th International Conference on ASIC, 2015

EMI reduction by analog noise spread spectrum in new ripple controlled converter.

Yasunori Kobori, Taifeng Wang, Nobukazu Tsukiji, Nobukazu Takai, Haruo Kobayashi

Proceedings of the 2015 IEEE 11th International Conference on ASIC, 2015

Selectable notch frequencies of EMI spread spectrum using pulse modulation in switching converter.

Yasunori Kobori, Takuya Arafune, Nobukazu Tsukiji, Nobukazu Takai, Haruo Kobayashi

Proceedings of the 2015 IEEE 11th International Conference on ASIC, 2015

2013

Multi-bit Sigma-Delta TDC Architecture with Improved Linearity.

Satoshi Uemori, Masamichi Ishii, Haruo Kobayashi, Daiki Hirabayashi, Yuta Arakawa, Yuta Doi, Osamu Kobayashi, Tatsuji Matsuura, Kiichi Niitsu, Yuji Yano, Tatsuhiro Gake, Takahiro J. Yamaguchi, Nobukazu Takai

J. Electron. Test., 2013

An Analysis of Stochastic Self-Calibration of TDC Using Two Ring Oscillators.

Kentaroh Katoh, Yuta Doi, Satoshi Ito, Haruo Kobayashi, Ensi Li, Nobukazu Takai

Proceedings of the 22nd Asian Test Symposium, 2013

2012

Multi-bit sigma-delta TDC architecture with self-calibration.

Satoshi Uemori, Masamichi Ishii, Haruo Kobayashi, Yuta Doi, Osamu Kobayashi, Tatsuji Matsuura, Kiichi Niitsu, Yuta Arakawa, Daiki Hirabayashi, Yuji Yano, Tatsuhiro Gake, Nobukazu Takai, Takahiro J. Yamaguchi

Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, 2012

Single inductor dual output DC-DC converter design with exclusive control.

Yasunori Kobori, Qiulin Zhu, Murong Li, Feng Zhao, Zachary Nosker, Shu Wu, Shaiful N. Mohyar, Masanori Onozawa, Haruo Kobayashi, Nobukazu Takai, Kiichi Niitsu, Takahiro Odaguchi, Isao Nakanishi, Kenji Nemoto, Jun-Ichi Matsuda, Asahi Kasei

Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, 2012

Digitally-controlled Gm-C bandpass filter.

Guanglei Jin, Hao Chen, Chuan Gao, Yunpeng Zhang, Haruo Kobayashi, Nobukazu Takai, Kiichi Niitsu, Khayrollah Hadidi

Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, 2012

DC-DC converter with continuous-time feed-forward Sigma-Delta modulator control.

Hong Gao, Lin Xing, Yasunori Kobori, Feng Zhao, Haruo Kobayashi, Shyunsuke Miwa, Atsushi Motozawa, Zachary Nosker, Kiichi Niitsu, Nobukazu Takai, Takahiro Odaguchi, Isao Nakanishi, Kenji Nemoto, Jun-Ichi Matsuda

Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, 2012

2011

Design for Testability That Reduces Linearity Testing Time of SAR ADCs.

Tomohiko Ogawa, Haruo Kobayashi, Satoshi Uemori, Yohei Tan, Satoshi Ito, Nobukazu Takai, Takahiro J. Yamaguchi, Kiichi Niitsu

IEICE Trans. Electron., 2011

2010

SAR ADC Algorithm with Redundancy and Digital Error Correction.

Tomohiko Ogawa, Haruo Kobayashi, Yosuke Takahashi, Nobukazu Takai, Masao Hotta, Hao San, Tatsuji Matsuura, Akira Abe, Katsuyoshi Yagi, Toshihiko Mori

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2010

ADC linearity test signal generation algorithm.

Satoshi Uemori, Takahiro J. Yamaguchi, Satoshi Ito, Yohei Tan, Haruo Kobayashi, Nobukazu Takai, Kiichi Niitsu, Nobuyoshi Ishikawa

Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, 2010

Single inductor DC-DC converter with bipolar outputs using charge pump.

Kenji Takahashi, Hajime Yokoo, Shyunsuke Miwa, Kengo Tsushida, Hiroyuki Iwase, Kazuki Murakami, Nobukazu Takai, Haruo Kobayashi, Takahiro Odaguchi, Shigeki Takayama, Isao Fukai, Jun-Ichi Matsuda

Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, 2010

Non-binary SAR ADC with digital error correction for low power applications.

Tomohiko Ogawa, Tatsuji Matsuura, Haruo Kobayashi, Nobukazu Takai, Masao Hotta, Hao San, Akira Abe, Katsuyoshi Yagi, Toshihiko Mori

Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, 2010

SAR ADC that is configurable to optimize yield.

Tomohiko Ogawa, Haruo Kobayashi, Yohei Tan, Satoshi Ito, Satoshi Uemori, Nobukazu Takai, Kiichi Niitsu, Takahiro J. Yamaguchi, Tatsuji Matsuura, Nobuyoshi Ishikawa

Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, 2010

Stochastic TDC architecture with self-calibration.

Satoshi Ito, Shigeyuki Nishimura, Haruo Kobayashi, Satoshi Uemori, Yohei Tan, Nobukazu Takai, Takahiro J. Yamaguchi, Kiichi Niitsu

Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, 2010

2009

Steep Down-Slope Sawtooth Wave Generator Utilizing Two Triangluar Waves Exclusively.

Nobukazu Takai, Yukihiro Fujimura

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009

EMI Reduction by Spread-Spectrum Clocking in Digitally-Controlled DC-DC Converters.

Ibuki Mori, Yoshihisa Yamada, Santhos A. Wibowo, Masashi Kono, Haruo Kobayashi, Yukihiro Fujimura, Nobukazu Takai, Toshio Sugiyama, Isao Fukai, Norihisa Onishi, Ichiro Takeda, Jun-Ichi Matsuda

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009

A Time-to-Digital Converter with small circuitry.

Kazuya Shimizu, Masato Kaneta, HaiJun Lin, Haruo Kobayashi, Nobukazu Takai, Masao Hotta

Proceedings of the 14th Asia South Pacific Design Automation Conference, 2009

2008

SAR ADC algorithm with redundancy.

Tomohiko Ogawa, Haruo Kobayashi, Masao Hotta, Yosuke Takahashi, Hao San, Nobukazu Takai

Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, 2008

New architecture for envelope-tracking power amplifier for base station.

Akihiro Kanbe, Masato Kaneta, Fuminori Yui, Haruo Kobayashi, Nobukazu Takai, Tatsuhiro Shimura, Hitoshi Hirata, Kentarou Yamagishi

Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, 2008

2007

Compensation method of amplitude error in sawtooth wave generator.

Nobukazu Takai, Yukihiro Fujimura

Proceedings of the 18th European Conference on Circuit Theory and Design, 2007

2005

Rail-to-Rail OTA Based on Signal Decomposition.

Nobukazu Takai, Shigetaka Takagi, Nobuo Fujii

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005

Rail-to-Rail OTA Utilizing Linear V-I Conversion Circuit Whose Input Stage is Composed of Single Channel MOSFETs.

Nobukazu Takai, Keigo Kawai

IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2005

Rail-to-rail OTA utilizing linear V-I conversion circuit using single channel MOSFETs for input stage.

Nobukazu Takai, Shinji Nomura

Proceedings of the 2005 European Conference on Circuit Theory and Design, 2005

1998

GaAs MESFET multi-output current mirrors and their application to high frequency filters.

Nobukazu Takai, Nobuo Fujii

Proceedings of the 5th IEEE International Conference on Electronics, Circuits and Systems, 1998