Takao Waho

According to our database, Takao Waho authored at least 53 papers between 1995 and 2024.

Collaborative distances:

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

2024

Delta-Sigma Domain Signal Processing Revisited with Related Topics in Stochastic Computing.

Takao Waho, Akihisa Koyama, Hitoshi Hayashi

IEICE Trans. Inf. Syst., 2024

Signal processing with delta-sigma modulated bitstreams for artificial neurons.

Akihisa Koyama, Takao Waho, Hitoshi Hayashi

Proceedings of the 54th IEEE International Symposium on Multiple-Valued Logic, 2024

2023

Delta-Sigma Domain Signal Processing: A Review with Relevant Topics in Stochastic Computing.

Takao Waho, Akihisa Koyama, Hitoshi Hayashi

Proceedings of the 53rd IEEE International Symposium on Multiple-Valued Logic, 2023

2021

A ΔΣ-Modulation Feedforward Network for Non-Binary Analog-to-Digital Converters.

Takao Waho, Tomoaki Koizumi, Hitoshi Hayashi

IEICE Trans. Inf. Syst., 2021

A multi-level cascaded delta-sigma modulator with reduced quantization noise leakage.

Takao Waho, Tomoaki Koizumi, Hitoshi Hayashi

Proceedings of the 51st IEEE International Symposium on Multiple-Valued Logic, 2021

A Delta-Sigma-Modulation Multi-Channel Network with Improved Noise-Shaping Characteristics.

Tomoaki Koizumi, Takao Waho, Hitoshi Hayashi

Proceedings of the IEEE International Symposium on Circuits and Systems, 2021

2020

A delta-sigma-modulator feedforward network for a non-binary analog-to-digital converter.

Takao Waho

Proceedings of the 50th IEEE International Symposium on Multiple-Valued Logic, 2020

2018

A Noise-shaping Analog-to-Digital Converter using a ΔΣ Modulator Feedforward Network.

Takao Waho

FLAP, 2018

An Analog-to-Digital Converter Using Delta-Sigma Modulator Network.

Takao Waho

Proceedings of the 48th IEEE International Symposium on Multiple-Valued Logic, 2018

2017

Analog-to-Digital Converters Using Not Multi-level But Multi-bit Feedback Paths.

Takao Waho

Proceedings of the 47th IEEE International Symposium on Multiple-Valued Logic, 2017

2015

Non-Binary Analog-to-Digital Converter Based on Amoeba-Inspired Neural Network.

Uichi Ishida, Yusuke Yamazaki, Takao Waho

Proceedings of the 2015 IEEE International Symposium on Multiple-Valued Logic, 2015

2014

Foreword.

Takao Waho

IEICE Trans. Inf. Syst., 2014

An Energy-Efficient ΔΣ Modulator Using Dynamic-Common-Source Integrators.

Ryo Matsushiba, Hiroaki Kotani, Takao Waho

IEICE Trans. Electron., 2014

Non-binary Successive Approximation Analog-to-Digital Converters: A Survey.

Takao Waho

Proceedings of the IEEE 44th International Symposium on Multiple-Valued Logic, 2014

An energy-efficient dynamic-integrator-based ΔΣ modulator.

Ryo Matsushiba, Kazuma Ohara, Takao Waho

Proceedings of the 21st IEEE International Conference on Electronics, Circuits and Systems, 2014

2013

A Successive Approximation A/D Converter Using Generalized Non-Binary Algorithm.

Yuki Kurisu, Tatsuya Sasaki, Takao Waho

Proceedings of the 43rd IEEE International Symposium on Multiple-Valued Logic, 2013

2012

InAs Nanowire Circuits Fabricated by Field-Assisted Self-Assembly on a Host Substrate.

Kai Blekker, René Richter, Ryosuke Oda, Satoshi Taniyama, Oliver Benner, Gregor Keller, Benjamin Munstermann, Andrey Lysov, Ingo Regolin, Takao Waho, Werner Prost

IEICE Trans. Electron., 2012

Energy Efficiency of Multi-bit delta-sigma Modulators Using Inverter-based Integrators.

Hiroaki Kotani, Ryoto Yaguchi, Takao Waho

Proceedings of the 42nd IEEE International Symposium on Multiple-Valued Logic, 2012

A low-distortion switched-source-follower track-and-hold circuit.

Akinori Moriyama, Satoshi Taniyama, Takao Waho

Proceedings of the 19th IEEE International Conference on Electronics, Circuits and Systems, 2012

2011

A Dynamic Source-Follower Integrator and Its Application to ΔΣ Modulators.

Ryoto Yaguchi, Fumiyuki Adachi, Takao Waho

IEICE Trans. Electron., 2011

Time-Domain Multi-bit DeltaSigma Analog-to-Digital Converter.

Kazuki Kuribayashi, Kazuya Machida, Yuji Toyama, Takao Waho

Proceedings of the 41st IEEE International Symposium on Multiple-Valued Logic, 2011

2010

A Low-Power Successive Approximation Analog-to-Digital Converter Based on 2-Bit/Step Comparison.

Naoki Sugiyama, Hiroshi Noto, Yoshito Nishigami, Ryosuke Oda, Takao Waho

Proceedings of the 40th IEEE International Symposium on Multiple-Valued Logic, 2010

Enhancement of comparator operation speed by using negative-differential-resistance devices.

Tomohiko Ebata, Uichiro Omae, Kazuya Machida, Keita Hoshi, Takao Waho

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2010), May 30, 2010

A low-power delta-sigma modulator using dynamic-source-follower integrators.

Ryoto Yaguchi, Fumiyuki Adachi, Takao Waho

Proceedings of the 17th IEEE International Conference on Electronics, 2010

2009

Time-Interleaved Polyphase Decimation Filter Using Signed-Digit Adders.

Masaki Murozuka, Kazumasa Ikeura, Fumiyuki Adachi, Kazuya Machida, Takao Waho

Proceedings of the ISMVL 2009, 2009

A Bandpass Continuous-time SigmaDelta Modulator using a Parallel-DAC to Reduce Jitter Sensitivity.

Fumiyuki Adachi, Kazuya Machida, Takao Waho

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2009), 2009

2008

A Design of HEMT Comparators for Ultrahigh-Speed A/D Conversion.

Hiroshi Watanabe, Shunsuke Nakamura, Takao Waho

IEICE Trans. Electron., 2008

Special Section on Heterostructure Microelectronics with TWHM 2007.

Takao Waho

IEICE Trans. Electron., 2008

A 3/7-Level Mixed-Mode Algorithmic Analog-to-Digital Converter.

Kazuki Akutagawa, Kazuya Machida, Takao Waho

Proceedings of the 38th IEEE International Symposium on Multiple-Valued Logic (ISMVL 2008), 2008

An ultrahigh-speed full adder using resonant-tunneling logic gates.

Takao Waho, Hiroki Okuyama, Tomohiko Ebata, Ryousuke Kato

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

2007

Special Section on Fundamentals and Applications of Advanced Semiconductor Devices.

Takao Waho

IEICE Trans. Electron., 2007

A Ternary Analog-to-Digital Converter System.

Tomoki Tanoue, Munehiko Nagatani, Takao Waho

Proceedings of the 37th International Symposium on Multiple-Valued Logic, 2007

A Four-Resonant-Tunneling-Diode (4RTD) NAND/NOR Logic Gate.

Takao Waho, Akinori Yamada, Hiroki Okuyama, Victor Khorenko, Thai Do, Werner Prost

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2007), 2007

A design of multi-GHz continuous-time bandpass filters using 0.1-μm HEMT technology.

Shunsuke Nakamura, Uichiro Omae, Hiroshi Watanabe, Takao Waho

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

2006

A Design of Continuous-Time Delta-Sigma Modulators Using a Fully-Differential Resonant-Tunneling Comparator.

Keisuke Eguchi, Masaru Chibashi, Shinpei Nakagawa, Mitsuhiro Tanihata, Takao Waho

IEICE Trans. Electron., 2006

A Feedback-Signal Shaping Technique for Multi-Level Continuous-Time Delta-Sigma Modulators with Clock-Jitter.

Mitsuhiro Tanihata, Takao Waho

Proceedings of the 36th IEEE International Symposium on Multiple-Valued Logic (ISMVL 2006), 2006

A 6-bit low-power compact flash ADC using current-mode threshold logic gates.

Shunsuke Akiyama, Takao Waho

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2006), 2006

2005

Novel 4RTD Logic Circuits.

Hideaki Yamada, Takao Waho

IEICE Trans. Electron., 2005

A fully-differential resonant-tunneling circuit.

Masaru Chibashi, Keisuke Eguchi, Shinpei Nakagawa, Takao Waho

IEICE Electron. Express, 2005

A Design of 10-GHz Delta-Sigma Modulator using a 4-Level Differential Resonant-Tunneling Quantizer.

Keisuke Eguchi, Masaru Chibashi, Takao Waho

Proceedings of the 35th IEEE International Symposium on Multiple-Valued Logic (ISMVL 2005), 2005

A novel oscillation circuit using a resonant-tunneling diode.

Naokazu Muramatsu, Hiroshi Okazaki, Takao Waho

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2005), 2005

2004

Multiple-Input Resonant-Tunneling Logic Gates for Flash A/D Converter Applications.

Yuki Tsuji, Takao Waho

Proceedings of the 34th IEEE International Symposium on Multiple-Valued Logic (ISMVL 2004), 2004

A novel delta-sigma modulator using resonant-tunneling quantizers.

Masaru Chibashi, Keisuke Eguchi, Takao Waho

Proceedings of the 2004 International Symposium on Circuits and Systems, 2004

A dynamic element matching circuit for multi-bit delta-sigma modulators.

Ryozo Katoh, Shin-ya Kobayashi, Takao Waho

Proceedings of the 2004 Conference on Asia South Pacific Design Automation: Electronic Design and Solution Fair 2004, 2004

2002

An Impact of Introducing Multi-Level Signals to a Bandpass Cascaded Delta-Sigma Modulator.

Takao Waho, Shin-ya Kobayashi, Koji Matsuura

Proceedings of the 32nd IEEE International Symposium on Multiple-Valued Logic (ISMVL 2002), 2002

2001

Flash Analog-to-Digital Converter Using Resonant-Tunneling Multiple-Valued Circuits.

Takao Waho, Kazufumi Hattori, Y. Takamatsu

Proceedings of the 31st IEEE International Symposium on Multiple-Valued Logic, 2001

2000

Novel Resonant-Tunneling Multiple-Threshold Logic Circuit Based on Switching Sequence Detection.

Takao Waho, Kazufumi Hattori, Kouji Honda

Proceedings of the 30th IEEE International Symposium on Multiple-Valued Logic, 2000

1999

Ultrahigh-Speed Circuits Using Resonant Tunneling Devices.

Masafumi Yamamoto, Hideaki Matsuzaki, Toshihiro Itoh, Takao Waho, T. Akeyoshi, J. Osaka

Proceedings of the 9th Great Lakes Symposium on VLSI (GLS-VLSI '99), 1999

1998

Resonant-tunneling diode and HEMT logic circuits with multiple thresholds and multilevel output.

Takao Waho, Kevin J. Chen, Masafumi Yamamoto

IEEE J. Solid State Circuits, 1998

Ultrafast Ternary Quantizer using Resonant Tunneling Devices.

Toshihiro Itoh, Takao Waho, Koichi Maezawa, Masafumi Yamamoto

Proceedings of the 28th IEEE International Symposium on Multiple-Valued Logic, 1998

1997

Application of Resonant-Tunneling Quaternary Quantizer to Ultrahigh-Speed A/D Converter.

Takao Waho, Masafumi Yamamoto

Proceedings of the 27th IEEE International Symposium on Multiple-Valued Logic, 1997

1996

A Literal Gate Using Resonant-Tunneling Devices.

Takao Waho, Kevin J. Chen, Masafumi Yamamoto

Proceedings of the 26th IEEE International Symposium on Multiple-Valued Logic, 1996

1995

Resonant Tunneling Transistor and Its Application to Multiple-Valued Logic Circuits.

Takao Waho

Proceedings of the 25th IEEE International Symposium on Multiple-Valued Logic, 1995