公开(公告)号：US11818482B2

公开(公告)日：2023-11-14

申请号：US17945688

申请日：2022-09-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Daeyun Kim ,  Myoungoh Ki ,  Seungchul Shin

IPC: H04N25/705 ,  H04N25/71

CPC classification number: H04N25/705 ,  H04N25/745

Abstract: An image sensor and a camera are provided. The image sensor includes: a demodulation clock generation circuit configured to generate first to fourth demodulation clock signals respectively having first to fourth phases; a demodulation phase selection circuit configured to generate first to fourth pre-demodulation signals based on the first to fourth demodulation clock signals and a random number that changes for each of a plurality of packets; a delay circuit configured to generate a first delay signals, second delay signals, third delay signals and fourth delay signals by delaying the first to fourth pre-demodulation signals by a plurality of delay phases; and a phase mixer configured to generate first to fourth demodulation signals of which phases are changed based on an address that changes for each of the plurality of packets. The first to fourth phases have a phase difference of 90° from each other.

公开(公告)号：US11598863B2

公开(公告)日：2023-03-07

申请号：US17476879

申请日：2021-09-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Myeonggyun Kye ,  Seungchul Shin ,  Minsun Keel

IPC: G01S7/486 ,  G01S7/4865 ,  H04N5/369 ,  H04N5/376 ,  H04N5/378

Abstract: An imaging device includes a light source configured to operate by a light control signal having a first duty ratio; a pixel array in which a plurality of pixels are disposed, each of the plurality of pixels including a photodiode for generating electrical charges in response to a light reception signal output by the light source and reflected from a subject, and a pixel circuit for outputting a pixel signal corresponding to electrical charges of the photodiode; and a logic circuit configured to generate raw data for generating a depth image using the pixel signal, wherein the logic circuit inputs a photo control signal having a second duty ratio to the pixel circuit connected to the photodiode in each of the plurality of pixels, and wherein the first duty ratio is not an integer multiple of the second duty ratio.

公开(公告)号：US12244942B2

公开(公告)日：2025-03-04

申请号：US17720883

申请日：2022-04-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Myeonggyun Kye ,  Kyumin Kyung ,  Minsun Keel ,  Seungchul Shin

IPC: H04N25/42 ,  G01B11/22 ,  H04N25/46 ,  H04N25/50 ,  H04N25/705 ,  H04N25/75 ,  H04N25/772

Abstract: A depth sensor for measuring a distance to an object and an image signal processor configured to change a binning mode based on ambient light are provided. A method for operating a depth sensor for measuring a distance to an object includes outputting a pixel signal from at least one depth pixel included in a pixel array, generating ambient light information based on an intensity of ambient light outside the depth sensor, the intensity of the ambient light being measured using the pixel signal, and setting a binning mode of the depth sensor to an analog binning mode or a digital binning mode based on the ambient light parameter value.

公开(公告)号：US11611695B2

公开(公告)日：2023-03-21

申请号：US17038577

申请日：2020-09-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bongjin Sohn ,  Kyumin Kyung ,  Joonseok Kim ,  Seungchul Shin ,  Seoungjae Yoo ,  Inchun Lim

IPC: H04N5/232 ,  H04N5/225 ,  G06T7/521 ,  G06T5/20 ,  G06T5/00 ,  G01S17/08 ,  G01S17/89 ,  G06T5/10

Abstract: An imaging device includes a light source operating in response to an optical control signal having a predetermined frequency, a sensor including a plurality of pixels, configured to generate an electrical signal in response to a light reception signal output by the light source and reflected from a subject, and a logic circuit configured to generate first raw data of a spatial domain based on the electrical signal, and an image signal processor configured to convert the first raw data into second raw data of a frequency domain, to select low-frequency data of the second raw data within a frequency band lower than a predetermined reference frequency, to apply a predetermined weighting to the low-frequency data to generate weighted data, and to generate a resultant image based on the first raw data and the weighted data.

公开(公告)号：US20230077551A1

公开(公告)日：2023-03-16

申请号：US17945688

申请日：2022-09-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Daeyun KIM ,  Myoungoh Ki ,  Seungchul Shin

IPC: H04N5/369 ,  H04N5/376

Abstract: An image sensor and a camera are provided. The image sensor includes: a demodulation clock generation circuit configured to generate first to fourth demodulation clock signals respectively having first to fourth phases; a demodulation phase selection circuit configured to generate first to fourth pre-demodulation signals based on the first to fourth demodulation clock signals and a random number that changes for each of a plurality of packets; a delay circuit configured to generate a first delay signals, second delay signals, third delay signals and fourth delay signals by delaying the first to fourth pre-demodulation signals by a plurality of delay phases; and a phase mixer configured to generate first to fourth demodulation signals of which phases are changed based on an address that changes for each of the plurality of packets. The first to fourth phases have a phase difference of 90° from each other.