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Paper Abstract and Keywords
Presentation 2021-10-21 15:00
Noise reduction by using sample-and-hold circuits for bias voltage of pixel source followers
Kohei Tomioka, Toshio Yasue, Kodai Kikuchi, Tomohiro Nakamura, Takayuki Yamashita, Kazuya Kitamura (NHK STRL), Shoji Kawahito (Shizuoka Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) A bias voltage generation method was proposed for a pixel source follower amplifier which is suitable for high resolution and high frame rate complementary metal-oxide semiconductor (CMOS) image sensors. In this method, the local bias circuit in every column and the sample-and-hold function for the gate voltage of the load transistor were used to prevent shading and streaking noise, while realizing low noise and high speed performance of the pixel source follower. The theoretical noise analysis of an 8K 120 fps image sensor with the proposed method showed a low input-referred noise of 2.04 e^−, whereas, the conventional method showed noise of 2.57 e^−.
Keyword (in Japanese) (See Japanese page) 
(in English) CMOS image sensor / High-resolution / High-framerate / Noise reduction / / / /  
Reference Info. ITE Tech. Rep., vol. 45, no. 30, IST2021-59, pp. 45-48, Oct. 2021.
Paper # IST2021-59 
Date of Issue 2021-10-14 (IST) 
ISSN Print edition: ISSN 1342-6893    Online edition: ISSN 2424-1970
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Conference Information
Committee IST  
Conference Date 2021-10-21 - 2021-10-21 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) Image Sensor , etc. 
Paper Information
Registration To IST 
Conference Code 2021-10-IST 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Noise reduction by using sample-and-hold circuits for bias voltage of pixel source followers 
Sub Title (in English)  
Keyword(1) CMOS image sensor  
Keyword(2) High-resolution  
Keyword(3) High-framerate  
Keyword(4) Noise reduction  
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1st Author's Name Kohei Tomioka  
1st Author's Affiliation NHK Science & Technology Research Laboratories (NHK STRL)
2nd Author's Name Toshio Yasue  
2nd Author's Affiliation NHK Science & Technology Research Laboratories (NHK STRL)
3rd Author's Name Kodai Kikuchi  
3rd Author's Affiliation NHK Science & Technology Research Laboratories (NHK STRL)
4th Author's Name Tomohiro Nakamura  
4th Author's Affiliation NHK Science & Technology Research Laboratories (NHK STRL)
5th Author's Name Takayuki Yamashita  
5th Author's Affiliation NHK Science & Technology Research Laboratories (NHK STRL)
6th Author's Name Kazuya Kitamura  
6th Author's Affiliation NHK Science & Technology Research Laboratories (NHK STRL)
7th Author's Name Shoji Kawahito  
7th Author's Affiliation Shizuoka University (Shizuoka Univ.)
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Speaker Author-1 
Date Time 2021-10-21 15:00:00 
Presentation Time 20 minutes 
Registration for IST 
Paper # IST2021-59 
Volume (vol) vol.45 
Number (no) no.30 
Page pp.45-48 
#Pages 4 
Date of Issue 2021-10-14 (IST) 

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