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Publication
Featured researches published by Masami Endo.
IEEE Journal of Solid-state Circuits | 2008
Yoshiyuki Kurokawa; Takayuki Ikeda; Masami Endo; Hiroki Dembo; Daisuke Kawae; Takayuki Inoue; Munehiro Kozuma; Daisuke Ohgarane; Satoru Saito; Koji Dairiki; Hidekazu Takahashi; Yutaka Shionoiri; Tomoaki Atsumi; Takeshi Osada; Kei Takahashi; Takanori Matsuzaki; Hiroyuki Takashina; Yoshinari Yamashita; Shunpei Yamazaki
A radio frequency integrated circuit (RFIC) tag consisting of an 8 bit CPU, a 4 kB ROM, a 512B SRAM, and an RF circuit, which communicates using 915 MHz UHF RF signals, has been developed on both a flexible substrate and a glass substrate. Each of the RFIC tags employs a single DES and an anti-side channel attack routine in firmware for secured communication, and occupies an area of 10.5 mm in width and 8.9 mm in height. The RFIC tag on the flexible substrate is 145 mum thick and weighs 262 mg, and the RFIC tag on the glass substrate consumes 0.54 mW at a power supply voltage of 1.5 V and communicates with a maximum range of 43 cm at a power of 30 dBm. The high-performance poly-silicon TFT technology on flexible substrate and glass substrate of 0.8 mum design rule, and a gate plus one metal layer are used for fabrication. The RFIC tag realizes stable internal clock generation and distribution by a digital control clock generator and a two-phase nonoverlap clock scheme, respectively.
SID Symposium Digest of Technical Papers | 2012
Tatsuji Nishijima; Seiichi Yoneda; Takuro Ohmaru; Masami Endo; Hiroki Denbo; Masashi Fujita; Hidetomo Kobayashi; Kazuaki Ohshima; Yutaka Shionoiri; Kiyoshi Kato; Yukio Maehashi; Jun Koyama; Shunpei Yamazaki
Archive | 2014
Masami Endo; Takuro Ohmaru
Archive | 2007
Daisuke Kawae; Masami Endo; Yoshiyuki Kurokawa; Takayuki Ikeda
Archive | 2007
Hiroki Dembo; Yoshiyuki Kurokawa; Masami Endo
Archive | 2012
Masami Endo; Takayuki Ikeda; Daisuke Kawae; Yoshiyuki Kurokawa
Archive | 2007
Masami Endo; Daisuke Kawae; Yoshiyuki Kurokawa; Takayuki Ikeda
Archive | 2008
Yoshiyuki Kurokawa; Takayuki Ikeda; Masami Endo; Hiroki Dembo; Daisuke Kawae; Takayuki Inoue; Munehiro Kozuma
Archive | 2007
Takayuki Ikeda; Yoshiyuki Kurokawa; Masami Endo
Archive | 2007
Hiroki Dembo; Yoshiyuki Kurokawa; Masami Endo