公开(公告)号：US20220092733A1

公开(公告)日：2022-03-24

申请号：US17232435

申请日：2021-04-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jinhyung KIM ,  Wooseok CHOI

IPC: G06T3/40 ,  G06K9/62

Abstract: In a method of color decomposition, inter-color images indicating similarity between color sensitivities are generated based on color images. Conversion coefficients of the color images and the inter-color images with respect to a white image are determined. A pseudo-white image corresponding to the color images and the inter-color images is generated using the conversion coefficients the pseudo-white image similar to a real white image is generated using the inter-color images indicating similarity between color sensitivities. Deep learning of the artificial neural network is performed efficiently using the color images and the pseudo-white image and the demosaiced images of high quality are generated using the trained artificial neural network that is trained.

公开(公告)号：US20250105848A1

公开(公告)日：2025-03-27

申请号：US18809966

申请日：2024-08-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Wooseok CHOI ,  Jihee KIM

IPC: H03L7/08 ,  H03L7/091 ,  H03L7/099

Abstract: A clock data recovery circuit including: a sampler to sample a comparison result between an input data signal and multiple reference voltages or to sample the input data signal based on a recovered clock signal; and a control circuit to output a control signal for controlling a phase of the recovered clock signal based on a K signal, an up signal, and a down signal.

公开(公告)号：US20240146312A1

公开(公告)日：2024-05-02

申请号：US18480817

申请日：2023-10-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Wooseok CHOI ,  Joonghyun SONG

IPC: H03L7/081 ,  H03K5/00

CPC classification number: H03L7/0812 ,  H03K5/00006 ,  H03K2005/00019

Abstract: A frequency multiplier includes a first digitally controlled delay line (DCDL) configured to receive a first clock signal and generate a second clock signal by changing a phase of the first clock signal, a multiplying delay-locked loop (MDLL) configured to generate a third clock signal by multiplying a frequency of the second clock signal, and a DCDL calibration circuit configured to receive the second clock signal and generate a gain signal for adjusting a gain of the first DCDL where a difference between a maximum delay and a minimum delay of the first DCDL is substantially equal to a period of the third clock signal.

公开(公告)号：US20210409623A1

公开(公告)日：2021-12-30

申请号：US17338082

申请日：2021-06-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chanyoung JANG ,  Hee KANG ,  Wooseok CHOI

IPC: H04N5/347 ,  H04N5/378 ,  H04N5/3745

Abstract: The binning method of an image sensor includes reading out a plurality of pixel signals from at least two rows of each of a plurality of areas of a pixel array at a time, each of the plurality of areas including a plurality of pixels arranged in a 2n×2n matrix, where n is an integer equal to or greater than 2; generating first image data by performing analog-to-digital conversion on the plurality of pixel signals; generating, based on the first image data, a first summation value of each of a plurality of binning areas based on two pixel values corresponding to a same color in each of the plurality of binning areas, the plurality of binning areas corresponding to the plurality of areas of the pixel array; and generating a second summation value of each of two binning areas based on two first summation values corresponding to a same color in the two binning areas, the two binning areas being adjacent to each other in a column direction among the plurality of binning areas.

公开(公告)号：US20210227185A1

公开(公告)日：2021-07-22

申请号：US16995085

申请日：2020-08-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dahee LEE ,  Yongseong KIM ,  Youngmi JO ,  Dongki MIN ,  Wooseok CHOI

IPC: H04N9/04 ,  H04N17/00 ,  H04N17/02 ,  H04N5/355

Abstract: An image sensor including a pixel array including a plurality of sub-pixels arranged along a plurality of rows and a plurality of columns, and k number of sub-pixels representing one color pixel in conjunction with each other, where k is an integer equal to or greater than four and calibration circuitry may be provided. The calibration circuitry may be configured to receive digital image signal generated based on pixel signals output from the pixel array, calculate a color gain of the digital image signal based on a coefficient set calculated based on a reference image signal generated by a reference image sensor under a first light source having a first color temperature, store coefficient sets associated with a plurality of color temperatures including the first color temperature, and apply the color gain to the digital image signal to generate a calibrated image signal.

公开(公告)号：US20210266503A1

公开(公告)日：2021-08-26

申请号：US17180226

申请日：2021-02-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Wooseok CHOI ,  Hyungoh Kim ,  Sungjin Park

IPC: H04N9/04 ,  H04N5/359 ,  H04N5/369 ,  G06T7/80

Abstract: A method of calibrating an image sensor includes obtaining a plurality of multi-light source images generated from a plurality of image sensor modules, wherein each of the plurality of image sensor modules generates at least three multi-light source images; obtaining, based on the plurality of multi-light source images, a plurality of crosstalk levels and a plurality of color-specific correction coefficients; generating modeling data based on a relationship between a crosstalk level for a first color and the plurality of color-specific correction coefficients; and obtaining, based on a single light source image captured by a first image sensor module and the modeling data, a color-specific correction coefficient for a target pixel of an image sensor, the image sensor being provided in the first image sensor module, and the color-specific correction coefficient being usable for correcting a crosstalk of the target pixel.

公开(公告)号：US20220344389A1

公开(公告)日：2022-10-27

申请号：US17572180

申请日：2022-01-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junghyung PYO ,  Jungbin YUN ,  Kyungho LEE ,  Seungjoon LEE ,  Wooseok CHOI

IPC: H01L27/146 ,  H04N5/369

Abstract: An image sensor is provided. The image sensor includes: a pixel array including first and second pixel groups, each of which includes unit pixels arranged in 4×4 array, each of the unit pixels including a photodiode provided, and the first and second pixel groups being alternately disposed in multiple directions; a logic circuit configured to acquire pixel signals from the unit pixels; first microlenses provided on corresponding unit pixels in the first pixel groups; and second microlenses provided on four corresponding unit pixels of the unit pixels included in the second pixel groups. Each of the first and second pixel groups includes a device isolation layer provided between the unit pixels, and a color filter provided on the first surface, and each of the second pixel groups includes an overflow region configured to move electrical charges between adjacent photodiodes.