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    Analog-to-Digital Converters and Related Image Sensors
    4.
    发明申请
    Analog-to-Digital Converters and Related Image Sensors 有权
    模数转换器和相关图像传感器

    公开(公告)号：US20120176501A1

    公开(公告)日：2012-07-12

    申请号：US13348044

    申请日：2012-01-11

    申请人： Kwi Sung Yoo ,  Min Ho Kwon ,  Wun-Ki Jung ,  Jin Ho Seo ,  Dong Hun Lee ,  Seung Hyun Lim ,  Jae Hong Kim

    发明人： Kwi Sung Yoo ,  Min Ho Kwon ,  Wun-Ki Jung ,  Jin Ho Seo ,  Dong Hun Lee ,  Seung Hyun Lim ,  Jae Hong Kim

    IPC分类号： H04N5/225 ,  H04N5/335 ,  H03M1/12

    CPC分类号： H03M1/164 ,  H03M1/50 ,  H03M3/424 ,  H03M3/456 ,  H03M3/458 ,  H04N5/378

    摘要： An image sensor includes a pixel array including a plurality of pixels which are arranged in a matrix of a plurality of rows and columns and each of the plurality of pixels being configured to convert intensity of incident light into an electrical image signal; and an extended counting analog-to-digital converter configured to perform a first analog-to-digital conversion to provide a digital signal from an output signal of the pixel array, to obtain a residue using the output signal of the pixel array and the digital signal, and to perform a second analog-to-digital conversion using the residue.

    摘要翻译： 图像传感器包括：像素阵列，其包括以多个行和列的矩阵排列的多个像素，并且所述多个像素中的每一个被配置为将入射光的强度转换为电图像信号; 以及扩展计数模数转换器，其被配置为执行第一模数转换以从所述像素阵列的输出信号提供数字信号，以使用所述像素阵列的输出信号和所述数字 信号，并且使用残留物进行第二模拟 - 数字转换。

    Analog-to-digital converter having a comparison signal generation unit and image sensor including the same
    5.
    发明授权
    Analog-to-digital converter having a comparison signal generation unit and image sensor including the same 有权
    具有比较信号生成单元和包含该比较信号生成单元的图像传感器的模数转换器

    公开(公告)号：US08547461B2

    公开(公告)日：2013-10-01

    申请号：US13240670

    申请日：2011-09-22

    申请人： Wun-Ki Jung ,  Seung-Hyun Lim ,  Dong-Hun Lee ,  Kwi-Sung Yoo ,  Min-Ho Kwon ,  Chi-Ho Hwang

    发明人： Wun-Ki Jung ,  Seung-Hyun Lim ,  Dong-Hun Lee ,  Kwi-Sung Yoo ,  Min-Ho Kwon ,  Chi-Ho Hwang

    IPC分类号： H04N3/14 ,  H03M1/12

    CPC分类号： H04N5/378 ,  H03M1/162 ,  H03M1/56 ,  H04N5/3575 ,  H04N5/374

    摘要： An analog-to-digital converter includes a comparison signal generation unit and a control unit. The comparison signal generation unit determines a logic level of a comparison signal by comparing an input signal with a selected reference signal based on a switch control signal in a first comparison mode, and by comparing a difference voltage with a ramp signal based on the switch control signal in a second comparison mode. The difference voltage is generated based on the input signal and the selected reference signal such that a level of the difference voltage is lower than a fine voltage level corresponding to a voltage level of the selected reference signal in the second comparison mode. The control unit generates the switch control signal based on the comparison signal and a mode selection signal.

    摘要翻译： 模数转换器包括比较信号生成单元和控制单元。 比较信号生成单元通过在第一比较模式中基于开关控制信号比较输入信号与所选择的参考信号，并且通过基于开关控制将差分电压与斜坡信号进行比较来确定比较信号的逻辑电平 信号在第二比较模式。 基于输入信号和所选择的参考信号产生差分电压，使得差分电压的电平低于与第二比较模式中所选参考信号的电压电平相对应的精细电压电平。 控制单元基于比较信号和模式选择信号产生开关控制信号。

    Analog-to-digital converter and image sensor including the same
    8.
    发明授权
    Analog-to-digital converter and image sensor including the same 有权
    模数转换器和图像传感器包括相同的

    公开(公告)号：US08749415B2

    公开(公告)日：2014-06-10

    申请号：US13243246

    申请日：2011-09-23

    申请人： Wun-Ki Jung ,  Jin-Ho Seo ,  Kwi-Sung Yoo ,  Min-Ho Kwon ,  Jae-Hong Kim

    发明人： Wun-Ki Jung ,  Jin-Ho Seo ,  Kwi-Sung Yoo ,  Min-Ho Kwon ,  Jae-Hong Kim

    IPC分类号： H03M3/00

    CPC分类号： H03M3/418 ,  H03M3/43 ,  H03M3/474 ,  H04N5/378

    摘要： An analog-to-digital converter includes a modulation unit and a digital signal generation unit. The modulation unit is disposed corresponding to at least one column line, and sequentially perform delta-sigma modulation on an analog input signal and at least one residue voltage to generate digital bit stream signals. The analog input signal is input through the at least one column line. The at least one residue voltage is generated by performing the delta-sigma modulation on the analog input signal. The digital signal generation unit generates a digital signal corresponding to the analog input signal based on the digital bit stream signals.

    摘要翻译： 模数转换器包括调制单元和数字信号生成单元。 调制单元对应于至少一列列设置，并且对模拟输入信号和至少一个残余电压依次执行Δ-Σ调制以产生数字位流信号。 模拟输入信号通过至少一条列线输入。 通过对模拟输入信号执行Δ-Σ调制来产生至少一个残余电压。 数字信号生成单元基于数字位流信号生成与模拟输入信号对应的数字信号。

    Correlated double sampling circuit and image sensor including the same
    9.
    发明授权
    Correlated double sampling circuit and image sensor including the same 有权
    相关的双采样电路和图像传感器包括相同的

    公开(公告)号：US08638383B2

    公开(公告)日：2014-01-28

    申请号：US13171958

    申请日：2011-06-29

    申请人： Wun-Ki Jung ,  Seog Heon Ham ,  Dong Hun Lee ,  Kwi Sung Yoo ,  Min Ho Kwon

    发明人： Wun-Ki Jung ,  Seog Heon Ham ,  Dong Hun Lee ,  Kwi Sung Yoo ,  Min Ho Kwon

    IPC分类号： H04N3/14 ,  H04N5/335

    CPC分类号： H03M3/342 ,  H04N5/378

    摘要： A correlated double sampling circuit includes a delta-sigma modulator, a selection circuit, and an accumulation circuit. The delta-sigma modulator is configured to receive an input signal, delta-sigma modulate the input signal, and output a modulation signal. The selection circuit is configured to invert the modulation signal and selectively output one of the modulation signal and an inverted modulation signal in response to a selection signal corresponding to an operation phase. The accumulation circuit is configured to generate a first accumulation result by performing an accumulation process on one of the modulation signal and the inverted modulation signal in a first operation phase, and generate a second accumulation result by performing the accumulation process on the first accumulation result and the other one of the modulation signal and the inverted modulation signal in a second operation phase.

    摘要翻译： 相关双采样电路包括Δ-Σ调制器，选择电路和累积电路。 Δ-Σ调制器被配置为接收输入信号，Δ-Σ调制输入信号，并输出调制信号。 选择电路被配置为响应于对应于操作阶段的选择信号，反转调制信号并选择性地输出调制信号和反相调制信号中的一个。 累积电路被配置为通过在第一操作阶段中对调制信号和反相调制信号之一执行累加处理来产生第一累加结果，并且通过对第一累积结果执行累积处理来生成第二累加结果，以及 在第二操作阶段中的另一个调制信号和反相调制信号。

    Analog-to-digital converter for controlling gain by changing a system parameter, image sensor including the analog-to-digital converter and method of operating the analog-to-digital converter
    10.
    发明授权
    Analog-to-digital converter for controlling gain by changing a system parameter, image sensor including the analog-to-digital converter and method of operating the analog-to-digital converter 有权
    用于通过改变系统参数来控制增益的模数转换器，包括模数转换器的图像传感器和操作模数转换器的方法

    公开(公告)号：US08605176B2

    公开(公告)日：2013-12-10

    申请号：US12879684

    申请日：2010-09-10

    申请人： Wun-Ki Jung ,  Seog Heon Ham ,  Dong Hun Lee ,  Kwi Sung Yoo ,  Min Ho Kwon

    发明人： Wun-Ki Jung ,  Seog Heon Ham ,  Dong Hun Lee ,  Kwi Sung Yoo ,  Min Ho Kwon

    IPC分类号： H04N3/14

    CPC分类号： H04N5/378 ,  H03M3/48

    摘要： Example embodiments are directed to an analog-to-digital converter (ADC) that controls a gain by changing a system parameter, an image sensor including the ADC and a method of operating the ADC. The ADC includes a sigma-delta modulator which receives an input signal and a clock signal and sigma-delta modulates the input signal into a digital output signal based on the clock signal and an accumulation unit which accumulates the digital output signal at each cycle of the clock signal according to an analog-to-digital conversion time and outputs an accumulation result. A system parameter is varied during the analog-to-digital conversion time to control a gain of the ADC. The method of operating the analog-to-digital converter includes sigma-delta modulating an input signal into a digital output signal in response to a clock signal input to the ADC; and accumulating the digital output signal at each cycle of the input clock signal according to an analog-to-digital conversion time and outputting an accumulation result.

    摘要翻译： 示例性实施例涉及通过改变系统参数来控制增益的模数转换器（ADC），包括ADC的图像传感器和操作ADC的方法。 ADC包括Σ-Δ调制器，其接收输入信号和时钟信号，并且Σ-Δ基于时钟信号将输入信号调制成数字输出信号;以及累积单元，其在每个周期的每个周期累积数字输出信号 时钟信号，并输出累积结果。 在模数转换时间期间，系统参数会发生变化，以控制ADC的增益。 操作模数转换器的方法包括响应于输入到ADC的时钟信号而将输入信号Σ-Δ调制成数字输出信号; 并且根据模数转换时间在输入时钟信号的每个周期累加数字输出信号，并输出累加结果。