公开(公告)号：US20210176419A1

公开(公告)日：2021-06-10

申请号：US16907776

申请日：2020-06-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Junan LEE ,  Sungyong KIM

IPC: H04N5/378 ,  H04N5/3745 ,  H03M1/50

Abstract: A comparator includes a comparison circuit and a positive feedback circuit. The comparison circuit generates a comparison signal by comparing an input signal and a reference signal. The positive feedback circuit generates an output signal based on the comparison signal, such that the output signal transitions more rapidly than the comparison signal. The positive feedback circuit includes a first circuit configured to electrically connect a first power supply voltage to a conversion node in response to a transition of the comparison signal and electrically disconnect the first power supply voltage from the conversion node in response to a transition of the output signal, a second circuit configured to electrically connect a second power supply voltage to the conversion node in response to the transition of the output signal, and an output circuit configured to generate the output signal based on a voltage of the conversion node.

公开(公告)号：US20210152772A1

公开(公告)日：2021-05-20

申请号：US16996264

申请日：2020-08-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Myunglae CHU ,  Sungyong KIM ,  Seoksan KIM ,  Minwoong SEO ,  Jaekyu LEE ,  Jongyeon LEE ,  Junan LEE

IPC: H04N5/3745 ,  H04N5/378

Abstract: Provided are a pixel array and an image sensor. The pixel array includes a plurality of pixels, which are arranged in a matrix form and which convert an optical signal into an electrical signal. The pixel array includes a first pixel arranged in a first row of the pixel array and a second pixel arranged in a second row of the pixel array, wherein each of the first pixel and the second pixel includes a first memory storing a digital reset value according to internal noise, the first memory of the first pixel stores m-bit data (where m is a natural number equal to or greater than 2), and the first memory of the second pixel stores n-bit data (where n is a natural number less than m).