Takeshi Ueno
Chuo University
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Takeshi Ueno.
international symposium on circuits and systems | 1997
Yasuhiro Sugimoto; Takeshi Ueno
A CMOS ring-oscillator type VCO circuit with inphase (I) and quadrature-phase (Q) outputs has been designed by using 0.6 /spl mu/m MOS devices. This VCO has demonstrated 1 V and 1 GHz operational capabilities. Two differential delay cells has been used as one delay section and the transitions of the delay cell outputs have been combined, and thus the 1 GHz 1/Q output generation has been realized. The current-mode approach throughout the design has resulted in the extremely low voltage operation. The simulation results show more than 1.4 GHz oscillation frequency from a 1 V power supply, and less than /spl plusmn/1 phase error for I/Q outputs when Vth variation is 10 mV.
Archive | 2012
Kei Shiraishi; Takeshi Ueno; Taichi Ogawa; Tetsuro Itakura
Archive | 2008
Mai Nozawa; Takeshi Ueno; Masanori Furuta
Archive | 2005
Takeshi Ueno; Takafumi Yamaji; Tetsuro Itakura
Archive | 2000
Tetsuro Itakura; Takashi Ueno; Takeshi Ueno; 武司 上野; 隆 上野; 哲朗 板倉
Archive | 2010
Masanori Furuta; Taichi Ogawa; Takeshi Ueno; Takakazu Yoshida
Archive | 2010
Kohei Onizuka; Takeshi Ueno; 武司 上野; 浩平 鬼塚
Archive | 2002
Tetsuro Itakura; Daisuke Kurose; Mai Nozawa; Takeshi Ueno; 武司 上野; 哲朗 板倉; 舞 野澤; 大介 黒瀬
Archive | 2014
Takamitsu Sakuraba; 高光 櫻庭; Takeshi Ueno; 武司 上野; Shigetoshi Koga; 重利 古賀
Archive | 2012
Takeshi Ueno; Tetsuro Itakura; Takefumi Sakamoto; Toshihisa Nabeya
