US 11,895,418 B2
Image sensing device using adaptively adjusted pre-charge current
Yu Jin Park, Gyeonggi-do (KR); Nam Ryeol Kim, Gyeonggi-do (KR); Kang Bong Seo, Gyeonggi-do (KR); Jeong Eun Song, Gyeonggi-do (KR); Jung Soon Shin, Gyeonggi-do (KR); and Seung Hwan Lee, Gyeonggi-do (KR)
Assigned to SK hynix Inc., Gyeonggi-do (KR)
Filed by SK hynix Inc., Gyeonggi-do (KR)
Filed on Sep. 7, 2021, as Appl. No. 17/468,295.
Claims priority of application No. 10-2021-0028903 (KR), filed on Mar. 4, 2021.
Prior Publication US 2022/0286637 A1, Sep. 8, 2022
Int. Cl. H04N 25/75 (2023.01); H04N 25/62 (2023.01); H04N 25/709 (2023.01); H04N 25/771 (2023.01); H04N 25/772 (2023.01)
CPC H04N 25/75 (2023.01) [H04N 25/62 (2023.01); H04N 25/709 (2023.01); H04N 25/771 (2023.01); H04N 25/772 (2023.01)] 20 Claims
OG exemplary drawing
 
1. An image sensing device comprising:
a control circuit coupled between an output terminal of a pixel signal and a high voltage terminal, and configured to generate a control voltage whose voltage level is changed corresponding to a slope of the pixel signal; and
a current supplying circuit coupled between the output terminal and the high voltage terminal, and configured to supply a pre-charge current, which is configured to be adaptively adjusted according to the slope of the pixel signal, to the output terminal based on the control voltage.