Analog-to-digital converting circuit for decreasing decision delay and operation method thereof

    公开(公告)号:US12167158B2

    公开(公告)日:2024-12-10

    申请号:US18062853

    申请日:2022-12-07

    Abstract: An analog-to-digital converting circuit includes a first amplifier configured to output a first output signal by comparing a pixel signal output from a pixel array with a ramp signal, and a second amplifier configured to generate a second output signal based on the first output signal. The second amplifier includes a first transistor configured to provide a power supply voltage to a first output node in response to the first output signal, a second transistor connected with a capacitor through a bias node, wherein the second transistor is configured to turn on in response to an auto-zero signal, a current source connected with the first transistor through the first output node, the current source configured to generate a power current based on a voltage level of the bias node, and a third transistor connected with the current source.

    DECODER, IMAGE PROCESSING DEVICE, AND OPERATING METHOD OF THE IMAGE PROCESSING DEVICE

    公开(公告)号:US20240212214A1

    公开(公告)日:2024-06-27

    申请号:US18392713

    申请日:2023-12-21

    CPC classification number: G06T9/00

    Abstract: An image processing device includes an interface configured to receive compressed data obtained by compressing image data corresponding to an output of at least one pixel and a decoder configured to generate at least two different pieces of compensation data based on loss data included in the compressed data and generate decompressed data by decompressing the compressed data based on any one piece of compensation data among the at least two different pieces of compensation data, where the loss data corresponds to data lost due to compression of the image data.

    ANALOG-TO-DIGITAL CONVERTING CIRCUIT FOR DECREASING DECISION DELAY AND OPERATION METHOD THEREOF

    公开(公告)号:US20230345152A1

    公开(公告)日:2023-10-26

    申请号:US18062853

    申请日:2022-12-07

    CPC classification number: H04N25/78 H04N25/709

    Abstract: An analog-to-digital converting circuit includes a first amplifier configured to output a first output signal by comparing a pixel signal output from a pixel array with a ramp signal, and a second amplifier configured to generate a second output signal based on the first output signal. The second amplifier includes a first transistor configured to provide a power supply voltage to a first output node in response to the first output signal, a second transistor connected with a capacitor through a bias node, wherein the second transistor is configured to turn on in response to an auto-zero signal, a current source connected with the first transistor through the first output node, the current source configured to generate a power current based on a voltage level of the bias node, and a third transistor connected with the current source.

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