Samsung electronics co., ltd. (20240430598). IMAGE SENSOR AND ELECTRONIC DEVICE INCLUDING THE SAME
IMAGE SENSOR AND ELECTRONIC DEVICE INCLUDING THE SAME
Organization Name
Inventor(s)
Donghoon Sung of Suwon-si (KR)
Seokyong Hong of Suwon-si (KR)
IMAGE SENSOR AND ELECTRONIC DEVICE INCLUDING THE SAME
This abstract first appeared for US patent application 20240430598 titled 'IMAGE SENSOR AND ELECTRONIC DEVICE INCLUDING THE SAME
Original Abstract Submitted
an image sensor includes a pixel array, a ramp signal generating circuit configured to output a first reference ramp signal of a first slope as a first ramp signal in a first period and a second reference ramp signal of a second slope as the first ramp signal in a second period, an offset voltage sampling circuit configured to, to sample an offset voltage based on a dc level of the first reference ramp signal, to output the first ramp signal in the first period, and to output a signal obtained by adding the offset voltage to the first ramp signal as a second ramp signal in the second period, a buffer configured to buffer the first ramp signal and the second ramp signal, and an adc circuit configured to compare a pixel signal from the pixel array with the first ramp signal or the second ramp signal.