Title :
CMOS image sensors using feedback reset circuits for high speed operation
Author :
Tu, Steve Hung-Lung ; Su, Wen-Hung
Author_Institution :
Dept. of Electron. Eng., Fu Jen Catholic Univ., Taipei
Abstract :
This paper describes novel feedback reset circuits for a contact image sensor (CIS) system using phototransistors as sensing elements. Simulated results of the proposed circuits indicate that the dynamic range defined by the difference of the bright output saturation level and dark level can be improved, which in turn enhances the sensed image quality
Keywords :
CMOS image sensors; circuit feedback; phototransistors; CMOS image sensors; contact image sensor system; feedback reset circuits; high speed operation; image quality; phototransistors; sensing elements; CMOS image sensors; Circuit simulation; Computational Intelligence Society; Dynamic range; Feedback circuits; Feedback loop; Image quality; Image sensors; Phototransistors; Switches;
Conference_Titel :
Solid-State and Integrated Circuit Technology, 2006. ICSICT '06. 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0160-7
Electronic_ISBN :
1-4244-0161-5
DOI :
10.1109/ICSICT.2006.306349
