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Paper Abstract and Keywords
Presentation 2021-08-18 16:00
An Area Efficient Readout Circuit for CMOS Image Sensor with Lateral Overflow Integration Capacitor
Ai Otani, Shunsuke Okura (Ritsumeikan Univ.), Ken Miyauchi, Sangman Han, Hideki Owada, Isao Takayanagi (BRILLNICS)
Abstract (in Japanese) (See Japanese page) 
(in English) LOFIC is utilized to realize HDR image sensor, in which low conversion gain (LCG) and
high conversion gain (HCG) signal are respectively utilized to realize large full well capacity and small dark noise.
However, the LOFIC requires double readout circuits, since the signal direction of LCG and HCG are opposite to each others.
In order to provide cost efficient LOFIC CMOS image sensor, the readout circuit which can process both LOFIC HCG and LCG signal (opposite direction) is studied. A combination circuit of an inverting amplifier for HCG and a non-inverting attenuator for LCG could be a solution.
The power consumption can be also reduced without amplifier during LCG readout.
Keyword (in Japanese) (See Japanese page) 
(in English) CMOS ImageSensor / LOFIC / HDR / readout circuit / Small area / / /  
Reference Info. ITE Tech. Rep., vol. 45, no. 21, IST2021-46, pp. 103-107, Aug. 2021.
Paper # IST2021-46 
Date of Issue 2021-08-10 (IST) 
ISSN Print edition: ISSN 1342-6893    Online edition: ISSN 2424-1970
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Conference Information
Conference Date 2021-08-17 - 2021-08-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Analog, Mixed Analog and Digital, RF, and Sensor Interface, Low Voltage/Low Power Techniques, Novel Devices/Circuits, and the Applications 
Paper Information
Registration To IST 
Conference Code 2021-08-SDM-ICD-IST 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An Area Efficient Readout Circuit for CMOS Image Sensor with Lateral Overflow Integration Capacitor 
Sub Title (in English)  
Keyword(1) CMOS ImageSensor  
Keyword(2) LOFIC  
Keyword(3) HDR  
Keyword(4) readout circuit  
Keyword(5) Small area  
1st Author's Name Ai Otani  
1st Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
2nd Author's Name Shunsuke Okura  
2nd Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
3rd Author's Name Ken Miyauchi  
3rd Author's Affiliation Brillnics Japan Inc. (BRILLNICS)
4th Author's Name Sangman Han  
4th Author's Affiliation Brillnics Japan Inc. (BRILLNICS)
5th Author's Name Hideki Owada  
5th Author's Affiliation Brillnics Japan Inc. (BRILLNICS)
6th Author's Name Isao Takayanagi  
6th Author's Affiliation Brillnics Japan Inc. (BRILLNICS)
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Speaker Author-1 
Date Time 2021-08-18 16:00:00 
Presentation Time 25 minutes 
Registration for IST 
Paper # IST2021-46 
Volume (vol) vol.45 
Number (no) no.21 
Page pp.103-107 
Date of Issue 2021-08-10 (IST) 

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