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    IMAGE SENSOR DEVICE AND OPERATION METHOD THEREOF
    3.
    发明公开
    IMAGE SENSOR DEVICE AND OPERATION METHOD THEREOF 审中-公开

    公开(公告)号：US20240340549A1

    公开(公告)日：2024-10-10

    申请号：US18523624

    申请日：2023-11-29

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Sangwoo Kim ,  Moo Young Kim ,  Yunhong Kim ,  Hyunjong Kim ,  Chanmin Park ,  Mira Lee

    IPC: H04N25/709 ,  H04N25/76

    CPC classification number: H04N25/709 ,  H04N25/76

    Abstract: Disclosed is an image sensor device which includes a pixel that outputs a first pixel signal to a first column line during a first time period and outputs a second pixel signal to the first column line during a second time period, and a clamp circuit that outputs a first clamp signal to the first column line during the first time period. During the first time period, a voltage of the first column line is determined based on the first pixel signal and the first clamp signal. The pixel operates based on a first power supply voltage, and the clamp circuit operates based on a second power supply voltage lower than the first power supply voltage.

    IMAGE SENSOR SAMPLING PIXEL SIGNAL MULTIPLE TIMES AND AN OPERATING METHOD OF THE IMAGE SENSOR
    4.
    发明申请
    IMAGE SENSOR SAMPLING PIXEL SIGNAL MULTIPLE TIMES AND AN OPERATING METHOD OF THE IMAGE SENSOR 有权

    公开(公告)号：US20230016998A1

    公开(公告)日：2023-01-19

    申请号：US17824607

    申请日：2022-05-25

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yunhong Kim ,  Heesung Chae ,  Yunhwan Jung ,  Haesick Sul

    IPC: H04N5/378 ,  H04N5/3745 ,  H04N5/369

    Abstract: An image sensor for sampling a pixel signal a plurality of times during a readout time includes an analog comparator configured to compare a signal level of the pixel signal with a signal level of a target ramp signal that is any one of a plurality of ramp signals, a counter configured to output counting data based on a comparison result of the analog comparator, and a digital comparing circuit configured to compare a binary value of a target reference code corresponding to the target ramp signal with a binary value of the counting data and determine whether to output a digital signal corresponding to the counting data to a data output circuit based on a result of the comparison between the binary value of the counting data and the binary value of the target reference code.

    Image sensor
    5.
    发明授权
    Image sensor 有权

    公开(公告)号：US11798963B2

    公开(公告)日：2023-10-24

    申请号：US17119330

    申请日：2020-12-11

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yunhong Kim ,  Yunhwan Jung ,  Heesung Chae

    IPC: H01L27/146 ,  H04N25/75

    CPC classification number: H01L27/14612 ,  H01L27/14636 ,  H01L27/14643 ,  H04N25/75

    Abstract: An image sensor includes a substrate including an active pixel region and an inactive pixel region, having a smaller area than the active pixel region; a plurality of active pixels in the active pixel region, each of the plurality of active pixels including a first transfer transistor, a first reset transistor, a first driving transistor, and a first selection transistor; and a plurality of inactive pixels in the inactive pixel region, each of the plurality of inactive pixels including a second transfer transistor, a second reset transistor, a second driving transistor, a second selection transistor, and a switch transistor connected to a node between the second driving transistor and the second select transistor. The plurality of switch transistors, included in the plurality of inactive pixels, are connected to each other by a connection wiring.

    Dynamic amplifier
    7.
    发明授权
    Dynamic amplifier 有权

    公开(公告)号：US11489494B2

    公开(公告)日：2022-11-01

    申请号：US16838100

    申请日：2020-04-02

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Yunhong Kim ,  Youngcheol Chae

    IPC: H03G3/00 ,  H03F3/45 ,  H03F1/02 ,  H03F1/56

    Abstract: A dynamic amplifier includes an amplifier configured to differentially amplify first and second input signals to generate first and second output signals, a bias circuit, and a variable impedance circuit. The bias circuit is connected between a first power node configured to supply a first source voltage and the amplifier, and configured to apply bias to the amplifier. The variable impedance circuit is connected between the amplifier and a second power node configured to supply a second source voltage that is lower than the first source voltage. The variable impedance circuit is configured to adjust amplification gain of the amplifier, by adjusting impedance based on a magnitude of one among the first and second input signals and the first and second output signals.

    ANALOG-TO-DIGITAL CIRCUIT AND OPERATION METHOD THEREOF
    9.
    发明申请
    ANALOG-TO-DIGITAL CIRCUIT AND OPERATION METHOD THEREOF 有权

    公开(公告)号：US20250038760A1

    公开(公告)日：2025-01-30

    申请号：US18596913

    申请日：2024-03-06

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Yunhong Kim ,  Heesung Chae ,  Keunyeol Park ,  Ingyeong Shin ,  Moo Young Kim

    IPC: H03M1/34 ,  H04N25/77

    Abstract: Disclosed is an analog-to-digital converter (ADC) circuit for digitizing a pixel signal into a digital signal of positive integer (N) bits. The ADC includes a ramp generator, a clock, a comparator, and a counter. A system clock signal allows the ramp generator to generate a ramp signal and the clock generator to generate first to N-th clock signals. The comparator generates a comparison signal based on a comparison of the pixel signal, received from a pixel array, and the ramp signal. The counter includes an additional latch circuit and first to N-th latch circuits. The additional latch circuit generates an additional binary signal based on the system clock signal and the comparison signal, and the first to N-th latch circuits generate first to N-th latch signals based on the comparison signal and corresponding clock signal.

    Image sensor including pixel array
    10.
    发明授权
    Image sensor including pixel array 有权

    公开(公告)号：US12143739B2

    公开(公告)日：2024-11-12

    申请号：US17857812

    申请日：2022-07-05

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yunhong Kim ,  Yunhwan Jung ,  Heesung Chae ,  Mooyoung Kim ,  Haesick Sul

    IPC: H04N25/75 ,  H04N25/63 ,  H04N25/633

    Abstract: An image sensor may include a pixel array a pixel array including an active pixel and an optical black pixel, the active pixel configured to generate a first pixel signal, and the optical black pixel configured to generate a second pixel signal, a first biasing circuit configured to bias the first pixel signal based on a first bias voltage, a first analog-to-digital converter configured to convert the biased first pixel signal into a first digital signal, a second biasing circuit configured to bias the second pixel signal based on a second bias voltage, and a second analog-to-digital converter configured to convert the biased second pixel signal into a second digital signal, the second digital signal configured to generate smaller random noise than the first analog-to-digital converter.

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