A New Fractional-N PLL Frequency Synthesizer. - Yasuaki Sumi; Shigeki Obote; Yutaka Fukui; Kazutoshi Tsuda; Kouichi Syoubu (J. Circuits Syst. Comput., 1997)

DSP-FLL for FSK demodulation. - Shigeki Obote; Yasuaki Sumi; Kouichi Syoubu; Yoshio Itoh; Yutaka Fukui (EUSIPCO, 1998)

PLL frequency synthesizer system utilizing multi-programmable dividers. - Yasuaki Sumi; Kouichi Syoubu; Shigeki Obote; Yutaka Fukui; Yoshio Itoh (EUSIPCO, 1998)

Performance improvement in a binary phase comparator type PLL frequency synthesizer. - Shigeki Obote; Yasuaki Sumi; Naoki Kitai; Yutaka Fukui; Yoshio Itoh (ISCAS (4), 1999)

Dead-zone-less PLL frequency synthesizer by hybrid phase detectors. - Yasuaki Sumi; Shigeki Obote; Naoki Kitai; Ryousuke Furuhashi; Hidekazu Ishii; Yoshitaka Matsuda; Yutaka Fukui (ISCAS (4), 1999)

PLL frequency synthesizer with an auxiliary programmable divider. - Yasuaki Sumi; Shigeki Obote; Naoki Kitai; Ryousuke Furuhashi; Yoshitaka Matsuda; Yutaka Fukui (ISCAS (2), 1999)

PLL synthesizer with multi-programmable divider and multi-phase detector. - Yasuaki Sumi; Shigeki Obote; Naoki Kitai; Hidekazu Ishii; Ryousuke Furuhashi (IEEE Trans. Consumer Electron., 1999)

A Study on Performance Evaluation and Improvement of PSK Coherent Detection with Adaptive BPF Utilizing Allpass Filter. - Shigeki Obote; Daisuke Nagai; Kenichi Kagoshima (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2002)

Dual-Mode Space-Temporal Simultaneous Processing Equalizer. - Yoshihiro Ichikawa; Shigeki Obote; Kenichi Kagoshima (Wirel. Pers. Commun., 2005)

Reading Technique of 2.45 GHz Band Small RFID Tags with an Adapter. - Peng Wang; Hiroyuki Koga; Sho Yamada; Shigeki Obote; Kenichi Kagoshima; Kenji Araki (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)

A Cross Polarization Suppressed Sequential Array with L-Probe Fed Rectangular Microstrip Antennas. - Kazuki Ikeda; Keigo Sato; Kenichi Kagoshima; Shigeki Obote; Atsushi Tomiki; Tomoaki Toda (IEICE Trans. Commun., 2011)