公开(公告)号：US20240259711A1

公开(公告)日：2024-08-01

申请号：US18373023

申请日：2023-09-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho Yong NA ,  Kyung Min KIM ,  Min Sun KEEL

IPC: H04N25/772

CPC classification number: H04N25/772

Abstract: In some embodiments, an image sensing device includes a pixel array including a capacitor, a read circuit, and a plurality of pixels including a first and a second photodiode. The image sensing device further includes a driver configured to generate control signals for the plurality of pixels, an analog-to-digital converter (ADC) block configured to generate a digital signal, and a controller configured to control the driver and the ADC block. At least one of the plurality of pixels is configured to sequentially output a first and a second sub-output signal obtained by converting charges accumulated in the first photodiode, a third sub-output signal obtained by converting charges accumulated in the second photodiode, a fourth sub-output signal obtained by converting third charges stored in the capacitor, a first reset signal corresponding to the fourth sub-output signal, and a second reset signal corresponding to the third sub-output signal.

公开(公告)号：US20240323569A1

公开(公告)日：2024-09-26

申请号：US18495020

申请日：2023-10-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho Yong NA ,  Kyung-Min KIM ,  Young Tae JANG

IPC: H04N25/772 ,  H04N25/78

CPC classification number: H04N25/772 ,  H04N25/78

Abstract: An image sensor includes a pixel having first and second photodiodes, a storage capacitor, an overflow transistor, and a read circuit. The pixel is configured to output a first sub-output signal obtained by converting electric charge generated by the first photodiode during an exposure period with first conversion gain, output a second sub-output signal obtained by converting the electric charge generated by the first photodiode during the exposure period with second conversion gain, output a first reset signal corresponding to the first sub-output signal and a second reset signal corresponding to the second sub-output signal, output a third sub-output signal, which is obtained by converting a portion of electric charge generated by the second photodiode during the exposure period with third conversion gain, output a fourth sub-output signal, obtained by converting the electric charge generated by the second photodiode and stored in the storage capacitor during the exposure period, with fourth conversion gain, and output a third reset signal corresponding to the third sub-output signal and a fourth reset signal corresponding to the fourth sub-output signal.