公开(公告)号：US12167157B2

公开(公告)日：2024-12-10

申请号：US18088622

申请日：2022-12-26

Applicant: SK hynix Inc.

Inventor： Sun Young Lee ,  Jeong Eun Song ,  Min Seok Shin

IPC: H04N25/76 ,  G01S17/89 ,  H04N25/705

Abstract: Disclosed is an image sensor including a plurality of selection circuits each suitable for receiving two clock signals among an input clock signal and a plurality of delayed clock signals, and outputting, as each of a plurality of selection clock signals, one selection clock signal between the two clock signals on the basis of a control signal; and a plurality of buffer circuits suitable for generating the plurality of delayed clock signals on the basis of the plurality of selection clock signals outputted from the plurality of selection circuits.

公开(公告)号：US11950008B2

公开(公告)日：2024-04-02

申请号：US17222508

申请日：2021-04-05

Applicant: SK hynix Inc.

Inventor： Jeong Eun Song ,  Min Seok Shin ,  Yu Jin Park ,  Sung Uk Seo ,  Sun Young Lee

IPC: H04N25/71 ,  H04N25/677

CPC classification number: H04N25/745 ,  H04N25/677

Abstract: Disclosed is an image sensing device including a first clock distributor suitable for receiving a first input dock signal through a first input terminal, and outputting a plurality of first output clock signals through a plurality of first output terminals, and a first conductive line coupled in common to the plurality of first output terminals.

公开(公告)号：US11647308B2

公开(公告)日：2023-05-09

申请号：US17574181

申请日：2022-01-12

Applicant: SK hynix Inc.

Inventor： Jin Uk Jeon ,  Oh Jun Kwon ,  Jin Seon Kim ,  Hak Soon Kim ,  Han Sang Kim ,  Kang Bong Seo ,  Sung Uk Seo ,  Jeong Eun Song ,  Min Seok Shin ,  Sun Young Lee ,  Eun Chang Lee ,  Hoo Chan Lee

IPC: H04N5/3745 ,  H04N5/378 ,  H03M1/56

CPC classification number: H04N5/378 ,  H03M1/56 ,  H04N5/37455

Abstract: An analog-to-digital converting circuit includes: an analog-to-digital converter suitable for performing an analog-to-digital conversion on pixel signals of a plurality of pixels provided in a pixel array; a ramp signal generator suitable for providing a ramp signal to the analog-to-digital converter; and an auto-zero controller suitable for providing a reference voltage to the analog-to-digital converter to perform an auto-zeroing operation by using a row pixel for which a readout operation is performed by the analog-to-digital converter.

公开(公告)号：US12166949B2

公开(公告)日：2024-12-10

申请号：US17535927

申请日：2021-11-26

Applicant: SK hynix Inc.

Inventor： Jeong Eun Song ,  Oh Jun Kwon ,  Yu Jin Park ,  Sung Uk Seo ,  Min Seok Shin ,  Sun Young Lee

IPC: H04N13/204 ,  G01B11/22 ,  G01R19/10 ,  G01S17/894 ,  H04N13/207 ,  H04N13/218 ,  H04N25/581 ,  H04N25/705 ,  H04N25/71 ,  H04N25/75 ,  H04N25/40 ,  H04N25/616

Abstract: An image sensing device includes a first sampling circuit suitable for sampling a reference ramp signal as a ramp signal; a switching circuit suitable for sequentially outputting first and second pixel signals to a common node based on first and second control signals; a second sampling circuit suitable for sampling the first and second pixel signals, which are sequentially outputted through the common node, as a measurement signal; a comparison circuit suitable for comparing the ramp signal with the measurement signal and generating a comparison signal corresponding to a comparison result; and a count circuit suitable for generating a count signal, which corresponds to a voltage level of the measurement signal, based on the comparison signal and a clock signal.