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    Signal transfer circuit and image sensor including the same
    3.
    发明授权
    Signal transfer circuit and image sensor including the same 有权

    公开(公告)号：US10659712B2

    公开(公告)日：2020-05-19

    申请号：US15867876

    申请日：2018-01-11

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Seok-Yong Park ,  Hee-Sung Chae

    IPC: H04N5/378 ,  H03F3/45 ,  H04N5/374 ,  H04N5/365 ,  H03F3/26

    Abstract: A signal transfer circuit includes a transmission circuit, a conversion circuit and a sensing output circuit. The transmission circuit outputs a driving signal to a signal line. The conversion circuit receives an input signal that is a single-ended signal transferred through the signal line and converts the input signal to a differential signal including a first output amplified signal and a second output amplified signal. The first output amplified signal swings downwardly from a first output DC level and the second output amplified signal swings upwardly from a second output DC level that is lower than the first output DC level. The sensing output circuit generates an output signal based on the differential signal. The number of the signal lines is reduced without decrease in performance of signal transfer, and sizes of the signal transfer circuit and the device including the signal transfer circuit are reduced.

    Binary-to-Gray Converting Circuits and Gray Code Counter Including the Same
    6.
    发明申请
    Binary-to-Gray Converting Circuits and Gray Code Counter Including the Same 有权
    二进制到灰色转换电路和包括它的格雷码计数器

    公开(公告)号：US20130278451A1

    公开(公告)日：2013-10-24

    申请号：US13764262

    申请日：2013-02-11

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Kyung-Min Kim ,  Jin-Woo Kim ,  Hee-Sung Chae

    IPC: H03M7/16

    CPC classification number: H03M7/16 ,  H03K23/005

    Abstract: A binary-to-Gray converting circuit includes a buffer unit and a conversion unit. The buffer unit generates a data code of n bits in response to a power supply voltage and a second binary bit signal through an nth binary bit signal except for a first binary bit signal corresponding to a least significant bit of a binary code of n bits. The conversion unit generates a Gray code of n bits based on the binary code and the data code, and generates a kth Gray bit signal of the Gray code by latching a kth data bit signal of the data code in response to a kth binary bit signal of the binary code. A logic level of the kth Gray bit signal is determined corresponding to a logic level of the kth data bit signal.

    Abstract translation: 二进制到灰色转换电路包括缓冲单元和转换单元。 缓冲器单元除了与n位二进制码的最低有效位对应的第一二进制位信号之外，通过第n个二进制位信号，响应于电源电压和第二二进制位信号产生n位数据码。 转换单元基于二进制码和数据码产生n位的格雷码，并通过根据第k个二进制位信号锁存数据码的第k个数据位信号，产生格雷码的第k个格雷比特信号 的二进制代码。 对应于第k个数据位信号的逻辑电平确定第k个格雷位信号的逻辑电平。

    Image sensor with test circuit
    7.
    发明授权
    Image sensor with test circuit 有权

    公开(公告)号：US10455227B2

    公开(公告)日：2019-10-22

    申请号：US15834296

    申请日：2017-12-07

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yun-Hong Kim ,  Hyeok-Jong Lee ,  Hee-Sung Chae

    IPC: H04N17/00 ,  H04N5/3745 ,  H04N5/357 ,  H04N5/343 ,  H04N5/378

    Abstract: An image sensor includes a pixel array including a plurality of pixels, an analog-to-digital converter having a first counter for converting an analog signal into a digital signal, and an output buffer having a first memory. A first counter test result value generated as a test result for the first counter is stored in the first memory in a test mode. The output buffer outputs the first counter test result value from the first memory to an outside of the output buffer in response to a first selection signal. The output buffer further includes a reset logic circuit for resetting the first memory depending on whether the first counter test result value is output or not. The plurality of pixels generate the analog signal in response to incident light.

    IMAGE SENSOR WITH TEST CIRCUIT
    8.
    发明申请
    IMAGE SENSOR WITH TEST CIRCUIT 审中-公开

    公开(公告)号：US20180324416A1

    公开(公告)日：2018-11-08

    申请号：US15834296

    申请日：2017-12-07

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yun-Hong Kim ,  Hyeok-Jong Lee ,  Hee-Sung Chae

    IPC: H04N17/00 ,  H04N5/3745 ,  H04N5/378 ,  H04N5/343 ,  H04N5/357

    CPC classification number: H04N17/002 ,  H04N5/343 ,  H04N5/3575 ,  H04N5/37455 ,  H04N5/378

    Abstract: An image sensor includes a pixel array including a plurality of pixels, an analog-to-digital converter having a first counter for converting an analog signal into a digital signal, and an output buffer having a first memory. A first counter test result value generated as a test result for the first counter is stored in the first memory in a test mode. The output buffer outputs the first counter test result value from the first memory to an outside of the output buffer in response to a first selection signal. The output buffer further includes a reset logic circuit for resetting the first memory depending on whether the first counter test result value is output or not. The plurality of pixels generate the analog signal in response to incident light.

    Binary-to-gray converting circuits and gray code counter including the same
    9.
    发明授权
    Binary-to-gray converting circuits and gray code counter including the same 有权
    二进制到灰色转换电路和包含相同的灰色代码计数器

    公开(公告)号：US08711016B2

    公开(公告)日：2014-04-29

    申请号：US13764262

    申请日：2013-02-11

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Kyung-Min Kim ,  Jin-Woo Kim ,  Hee-Sung Chae

    IPC: H03M7/16 ,  H03K23/00

    CPC classification number: H03M7/16 ,  H03K23/005

    Abstract: A binary-to-Gray converting circuit includes a buffer unit and a conversion unit. The buffer unit generates a data code of n bits in response to a power supply voltage and a second binary bit signal through an nth binary bit signal except for a first binary bit signal corresponding to a least significant bit of a binary code of n bits. The conversion unit generates a Gray code of n bits based on the binary code and the data code, and generates a kth Gray bit signal of the Gray code by latching a kth data bit signal of the data code in response to a kth binary bit signal of the binary code. A logic level of the kth Gray bit signal is determined corresponding to a logic level of the kth data bit signal.

    Abstract translation: 二进制到灰色转换电路包括缓冲单元和转换单元。 缓冲器单元除了与n位二进制码的最低有效位对应的第一二进制位信号之外，通过第n个二进制位信号，响应于电源电压和第二二进制位信号产生n位数据码。 转换单元基于二进制码和数据码产生n位的格雷码，并通过根据第k个二进制位信号锁存数据码的第k个数据位信号，产生格雷码的第k个格雷比特信号 的二进制代码。 对应于第k个数据位信号的逻辑电平确定第k个格雷位信号的逻辑电平。

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