지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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In this paper, we propose a 4-transistor active pixel sensor(APS) with a novel correlated double sampling(CDS) circuit for the purpose of extending dynamic range. Dual sampling techniques can overcome low-sensitivity and temporal disparity problems at low illumination. To accomplish this, two images are obtained at the same time using different sensitivities. The novel CDS circuit proposed in this paper contains MOS switches that make it possible for the capacitance of a conventional CDS circuit to function as a charge pump, so that the proposed APS exhibits an extended dynamic range as well as reduced noise. The designed circuit was fabricated by using 0.35㎛ 2-poly 4-metal standard CMOS technology and its characteristics have been evaluated.
목차
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참고문헌 (19)
참고문헌 신청
D. L. Gilblom / 2004 / Operation and performance of a color image sensor with layered hotodiodes / Proceeding SPIE 5210 : 105 ~ 115
Egawa, Y. / 2008 / A white-RGB CFA-patterned CMOS image sensor with wide dynamic range / IEEE ISSCC Dig. Tech. : 52 ~ 595
Gamal, A. / 2002 / Trends in CMOS image sensor technology and design / IEDM Technical Digest : 805 ~ 808
Han, H. / 2007 / Evaluation of a small negative transfer gate bias on the performance of 4T CMOS image sensor pixels / International Image Sensor Workshop
J. -S. Kong / 2010 / Dynamic range extension of an active pixel sensor combining output signals from photodiods with different sensitivities / SPIE 7536 (29)
Egawa, Y. / 2008 / A white-RGB CFA-patterned CMOS image sensor with wide dynamic range / IEEE ISSCC Dig. Tech. : 52 ~ 595
Gamal, A. / 2002 / Trends in CMOS image sensor technology and design / IEDM Technical Digest : 805 ~ 808
Han, H. / 2007 / Evaluation of a small negative transfer gate bias on the performance of 4T CMOS image sensor pixels / International Image Sensor Workshop
J. -S. Kong / 2010 / Dynamic range extension of an active pixel sensor combining output signals from photodiods with different sensitivities / SPIE 7536 (29)
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