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Presentation 2016-11-17 16:30
[Poster Presentation] A High-speed Low-power CMOS Image Sensor with Delta and Interpolation Readout Scheme
Hyeon-June Kim, Sun-Il Hwang, Seung-Tak Ryu (KAIST)
Abstract (in Japanese) (See Japanese page) 
(in English) This paper presents a high-speed low-power readout scheme for CMOS image sensors (CISs) that utilizes the image properties.The proposed delta and interpolation readout (DI-readout) scheme reads the signal difference between two adjacent pixels (ツpixel) by utilizing MSBs information of the previous pixel, using large ツpixel for interpolation and small ツpixel for delta readout.By effectively reducing the dynamic range of the signal, the proposed readout scheme can reduce the number of decision cycles and the power consumption of SAR ADC. A prototype QQVGA CIS with ten 10-bit SAR ADCs was fabricated in a 0.18 レm 1P4M CIS process with a 4.4 レm pixel pitch. The measurement results of the implemented prototype CIS showed a figure-of-merit (FoM) for imager of 0.35 e-nJ.
Keyword (in Japanese) (See Japanese page) 
(in English) low power / high speed / delta / SAR ADC / multi-column / delta-readout / /  
Reference Info. ITE Tech. Rep., vol. 40, no. 40, IST2016-67, pp. 39-40, Nov. 2016.
Paper # IST2016-67 
Date of Issue 2016-11-10 (IST) 
ISSN Print edition: ISSN 1342-6893    Online edition: ISSN 2424-1970
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Conference Information
Committee IST  
Conference Date 2016-11-17 - 2016-11-17 
Place (in Japanese) (See Japanese page) 
Place (in English) TITECH Tamachi Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Open Poster Session of 3rd International Workshop on Image Sensors and Imaging Systems (IWISS2016) 
Paper Information
Registration To IST 
Conference Code 2016-11-IST 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A High-speed Low-power CMOS Image Sensor with Delta and Interpolation Readout Scheme 
Sub Title (in English)  
Keyword(1) low power  
Keyword(2) high speed  
Keyword(3) delta  
Keyword(4) SAR ADC  
Keyword(5) multi-column  
Keyword(6) delta-readout  
1st Author's Name Hyeon-June Kim  
1st Author's Affiliation Korea Advanced Institute of Science (KAIST)
2nd Author's Name Sun-Il Hwang  
2nd Author's Affiliation Korea Advanced Institute of Science (KAIST)
3rd Author's Name Seung-Tak Ryu  
3rd Author's Affiliation Korea Advanced Institute of Science (KAIST)
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Speaker Author-1 
Date Time 2016-11-17 16:30:00 
Presentation Time 90 minutes 
Registration for IST 
Paper # IST2016-67 
Volume (vol) vol.40 
Number (no) no.40 
Page pp.39-40 
Date of Issue 2016-11-10 (IST) 

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