Masaru Kokubo

23 papers Journal 12Unranked 11
YearRankTypeTitle / Venue / Authors
2023 J jnl
Modulation Configurations of Phase Locked Loops for High-Speed and High-Precision Wired and Wireless Applications.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Masaru Kokubo
2018 J jnl
A 50-Gb/s High-Sensitivity (-9.2 dBm) Low-Power (7.9 pJ/bit) Optical Receiver Based on 0.18-µm SiGe BiCMOS Technology.
IEEE J. Solid State Circuits
Takashi Takemoto, Yasunobu Matsuoka, Hiroki Yamashita, Yong Lee, Hideo Arimoto, Masaru Kokubo, Tatemi Ido
2016 — conf
A 50.6-Gb/s 7.8-mW/Gb/s -7.4-dBm sensitivity optical receiver based on 0.18-µm SiGe BiCMOS technology.
VLSI Circuits
Takashi Takemoto, Yasunobu Matsuoka, Hiroki Yamashita, Yong Lee, Kenichi Akita, Hideo Arimoto, Masaru Kokubo, Tatemi Ido
2016 — conf
A jitter-reduction packaging structure for a 56-Gb/s NRZ modulated optical receiver.
OFC
Takashi Takemoto, Yasunobu Matsuoka, Hiroki Yamashita, Yong Lee, Kenichi Akita, Hideo Arimoto, Masaru Kokubo
2015 — conf
An electrical and optical concurrent design methodology for enlarging jitter margin of 25.8-Gb/s optical interconnects.
CICC
Takashi Takemoto, Hiroki Yamashita, Yasunobu Matsuoka, Yong Lee, Masaru Kokubo
2015 J jnl
Foreword.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Masaru Kokubo
2013 — conf
Verification of interference avoidance effect with Adaptive Channel Diversity method based on ISA100.11a standard.
RWS
Yasutaka Serizawa, Takashi Yano, Masayuki Miyazaki, Kenichi Mizugaki, Ryosuke Fujiwara, Masaru Kokubo
2012 J jnl
100-1000 MHz Programmable Continuous-Time Filter with Auto-Tuning Schemes and Digital Calibration Sequences for HDD Read Channels.
IEICE Trans. Electron.
Takahide Terada, Koji Nasu, Taizo Yamawaki, Masaru Kokubo
2012 — conf
Adaptive channel diversity method based on ISA100.11a standard for wireless industrial monitoring.
RWS
Masayuki Miyazaki, Ryosuke Fujiwara, Kenichi Mizugaki, Masaru Kokubo
2009 — conf
100-1000 MHz cutoff frequency, 0-12 dB boost programmable Gm-C filter with digital calibration for HDD read channel.
ESSCIRC
Takahide Terada, Taizo Yamawaki, Masaru Kokubo, Koji Nasu
2009 — conf
A low-jitter 1.5-GHz and large-EMI reduction 10-dBm spread-spectrum clock generator for Serial-ATA.
ASP-DAC
Takashi Kawamoto, Masaru Kokubo
2008 J jnl
0.7-GHz-Bandwidth DS-UWB-IR System for Low-Power Wireless Communications.
IEICE Trans. Commun.
Ryosuke Fujiwara, Akira Maeki, Kenichi Mizugaki, Goichi Ono, Tatsuo Nakagawa, Takayasu Norimatsu, Masaru Kokubo, Masayuki Miyazaki, Yasuyuki Okuma, Miki Hayakawa, Shinsuke Kobayashi, Noboru Koshizuka, Ken Sakamura
2008 — conf
A low-jitter 1.5-GHz and 350-ppm spread-spectrum serial ATA PHY using reference clock with 400-ppm production-frequency tolerance.
ESSCIRC
Takashi Kawamoto, Masaru Kokubo
2007 J jnl
A Dual-Mode Bluetooth Transceiver with a Two-Point-Modulated Polar-Loop Transmitter and a Frequency-Offset-Compensated Receiver.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Takashi Oshima, Masaru Kokubo
2007 J jnl
A UWB-IR Transmitter With Digitally Controlled Pulse Generator.
IEEE J. Solid State Circuits
Takayasu Norimatsu, Ryosuke Fujiwara, Masaru Kokubo, Masayuki Miyazaki, Akira Maeki, Yuji Ogata, Shinsuke Kobayashi, Noboru Koshizuka, Ken Sakamura
2006 J jnl
Intermittent Wireless Communication System for Low-Power Sensor Networks.
IEICE Trans. Commun.
Akira Maeki, Masayuki Miyazaki, Minoru Ohgushi, Masaru Kokubo, Kei Suzuki
2006 J jnl
Spread-Spectrum Clock Generator for Serial ATA with Multi-Bit Sigma-Delta Modulator-Controlled Fractional PLL.
IEICE Trans. Electron.
Masaru Kokubo, Takashi Kawamoto, Takashi Oshima, Takayuki Noto, Masato Suzuki, Shigeyuki Suzuki, Takashi Hayasaka, Tomoaki Takahashi, Jun Kasai
2005 J jnl
A GFSK Transmitter Architecture for a Bluetooth RF-IC, Featuring a Variable-Loop-Bandwidth Phase-Locked Loop Modulator.
IEICE Trans. Electron.
Masaru Kokubo, Takashi Oshima, Katsumi Yamamoto, Kunio Takayasu, Yoshiyuki Ezumi, Shinya Aizawa
2005 — conf
A novel UWB impulse-radio transmitter with all-digitally-controlled pulse generator.
ESSCIRC
Takayasu Norimatsu, Ryosuke Fujiwara, Masaru Kokubo, Masayuki Miyazaki, Yasuyuki Okuma, Miki Hayakawa, Shinsuke Kobayashi, Noboru Koshizuka, Ken Sakamura
2005 — conf
Rapid signal acquisition for low-rate carrier-based ultra-wideband impulse radio.
ISCAS (5)
Ryosuke Fujiwara, M. Shida, Akira Maeki, Kenichi Mizugaki, Masaru Kokubo, Masayuki Miyazaki
2005 — conf
Simple polar-loop transmitter for dual-mode Bluetooth.
ISCAS (4)
Takashi Oshima, Masaru Kokubo
1997 J jnl
A 2.7-V GSM RF transceiver IC.
IEEE J. Solid State Circuits
Taizo Yamawaki, Masaru Kokubo, Kiyoshi Irie, Hiroaki Matsui, Kazuaki Hori, Takefumi Endou, Hiroshi Hagisawa, Tomio Furuya, Yoshimi Shimizu, Makoto Katagishi, Julian Robert Hildersley
1988 J jnl
A subscriber digital signal processor LSI for PCM applications.
IEEE J. Solid State Circuits
Kazuo Yamakido, Masaru Kokubo, Takahiko Kozaki, Shigeo Nishita, Tatsuya Nishihara, Norio Miyake, Ken'ichi Ohwada