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Committee Date Time Place Paper Title / Authors Abstract Paper #
ICD, ITE-IST 2007-07-27
Hyogo   An image reproduction method and estimation of its S/N in a CMOS imager by hybrid use of active and passive pixel readouts
Keiichiro Kagawa (NAIST), Yugo Nose, Kuniyuki Tani, Atsushi Wada (Sanyo Electric Co., Ltd.), Masahiro Nunoshita, Jun Ohta (NAIST) ICD2007-66
We have proposed a dynamic range extension method of the CMOS imagers with an in-pixel lateral overflow structure. In th... [more] ICD2007-66
Tokyo Tokyo Univ. of Science, Morito Memorial Hall Application of low-voltage pulse-width-modulation CMOS image sensor to sensor networks
Tatsuya Sasaki, Sanshiro Shishido, Itsuki Nagahata, Keiichiro Kagawa, Masahiro Nunoshita, Jun Ohta (Naist)
ICD, ITE-IST 2006-07-27
Shizuoka   Design and preliminary experiments of digital vision chip architecture for retinal prosthesis
Keiichiro Kagawa, Takashi Tokuda, Masahiro Nunoshita, Jun Ohta (Nara Institute of Science and Technology)
We are studying vision chips for retinal prosthesis in which the vision chip implanted on or underneath the retina of th... [more] ICD2006-67
ICD, ITE-IST 2006-07-27
Shizuoka   Image acquisition with low-voltage pulse-width-modulation image sensor using source modulation
Tatsuya Sasaki, Keiichiro Kagawa, Masahiro Nunoshita, Jun Ohta (NAIST)
We are developing a CMOS image sensor suitable for low voltage driving using source-voltage modulation. In this sensor, ... [more] ICD2006-69
OPE 2006-02-17
Tokyo   Low-voltage vision chip using a pulse frequency modulation scheme for retinal prosthesis devices
Keiichiro Kagawa, Shinya Yamamoto, Tetsuo Furumiya, Takashi Tokuda, Masahiro Nunoshita, Jun Ohta (NAIST)
We report a low-voltage digital vision chip based on a pulse-frequency-modulation (PFM) photosensor using capacitive fee... [more] OPE2005-155
ICD 2005-07-14
Aichi Toyohashi Univ. of Tech. 低消費電力アプリケーションに向けた低電圧パルス幅変調方式CMOSイメージセンサ
Keiichiro Kagawa (NAIST), Makoto Shouho (Sharp), Masahiro Nunoshita, Jun Ohta (NAIST)
In this report, we discuss reduction of analog power supply voltage of CMOS image sensors to achieve low power dissipati... [more] ICD2005-49
NLP 2004-11-27
Fukuoka Kyushu Inst. Tech. *
Tetsuo Furumiya, , David C. Ng, Keiichiro Kagawa, Takashi Tokuda, Jun Ohta, Masahiro Nunoshita (NAIST)
 [more] NLP2004-81
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