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    Decimation filters, analog-to-digital converters including the same, and image sensors including the converters
    52.
    发明授权
    Decimation filters, analog-to-digital converters including the same, and image sensors including the converters 有权
    抽取滤波器，包括相同的模数转换器和包括转换器的图像传感器

    公开(公告)号：US08233068B2

    公开(公告)日：2012-07-31

    申请号：US12453593

    申请日：2009-05-15

    Applicant: Youngcheol Chae ,  In Hee Lee ,  Jimin Cheon ,  Gunhee Han ,  Seog Heon Ham

    Inventor： Youngcheol Chae ,  In Hee Lee ,  Jimin Cheon ,  Gunhee Han ,  Seog Heon Ham

    IPC: H04N5/335

    CPC classification number: H04N5/37455 ,  H03H17/0664 ,  H03M3/424 ,  H03M3/462

    Abstract: An image sensor includes an analog-to-digital converter (ADC) and a decimation filter. The decimation filter includes a first digital data generator and a second digital data generator. The first digital data generator is configured to integrate sigma-delta modulated M-bit pixel data and output N-bit pixel data based on an integration result. The second digital data generator is configured to integrate the N-bit pixel data, generate P-bit pixel data based on an integration result, and output the P-bit pixel data as decimated data.

    Abstract translation: 图像传感器包括模数转换器（ADC）和抽取滤波器。 抽取滤波器包括第一数字数据发生器和第二数字数据发生器。 第一数字数据发生器被配置为基于积分结果来集成Σ-Δ调制的M位像素数据和输出N位像素数据。 第二数字数据发生器被配置为集成N位像素数据，基于积分结果产生P位像素数据，并将P位像素数据输出为抽取数据。

    Analog-to-digital conversion and implementations thereof
    55.
    发明申请
    Analog-to-digital conversion and implementations thereof 有权
    模数转换及其实现

    公开(公告)号：US20100265114A1

    公开(公告)日：2010-10-21

    申请号：US12662449

    申请日：2010-04-19

    Applicant: Jeonghwan Lee ,  Gunhee Han ,  Kwi Sung Yoo ,  Seog Heon Ham

    Inventor： Jeonghwan Lee ,  Gunhee Han ,  Kwi Sung Yoo ,  Seog Heon Ham

    IPC: H03M1/12

    CPC classification number: H03M1/1225 ,  H03M1/144 ,  H03M1/56

    Abstract: In one embodiment, an analog-to-digital converter (ADC) includes a comparator and a supply circuit. The comparator is configured to compare an input signal to a reference signal. The supply circuit is configured to supply the reference signal. The supply circuit is configured to provide different circuit configurations for supplying the reference signal during different stages of analog-to-digital conversion such that the reference signal is scaled in substantially a same manner during at least two of the stages.

    Abstract translation: 在一个实施例中，模数转换器（ADC）包括比较器和电源电路。 比较器被配置为将输入信号与参考信号进行比较。 供电电路被配置为提供参考信号。 供电电路被配置为提供不同的电路配置，用于在模数转换的不同阶段期间提供参考信号，使得参考信号在至少两个阶段期间以基本上相同的方式缩放。

    Image sensor for reducing kick-back noise and image pick-up device having the same
    56.
    发明申请
    Image sensor for reducing kick-back noise and image pick-up device having the same 有权
    用于减少反射噪声的图像传感器和具有该噪声的图像拾取装置

    公开(公告)号：US20100177220A1

    公开(公告)日：2010-07-15

    申请号：US12656008

    申请日：2010-01-13

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

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

    IPC: H04N5/217

    CPC classification number: H04N5/3658 ,  H04N5/378

    Abstract: An image sensor comprises a plurality of pixel units connected to a column line, a signal process circuit configured to process a signal output from the column line according to a switching operation, and a kick-back noise blocking circuit configured to reduce kick-back noise caused by the switching operation. Each of the pixel units includes a photoelectric conversion element. The kick-back noise blocking circuit is connected between the column line and the signal process circuit.

    Abstract translation: 图像传感器包括连接到列线的多个像素单元，信号处理电路，被配置为根据切换操作处理从列线输出的信号;以及反冲噪声阻断电路，被配置为减少反射噪声 由开关操作引起。 每个像素单元包括光电转换元件。 反射噪声阻断电路连接在列线和信号处理电路之间。

    Image sensor using auto-calibrated ramp signal for improved image quality and driving method thereof
    57.
    发明授权
    Image sensor using auto-calibrated ramp signal for improved image quality and driving method thereof 有权
    图像传感器使用自动校准斜坡信号，以提高图像质量及其驱动方法

    公开(公告)号：US07679542B2

    公开(公告)日：2010-03-16

    申请号：US11508653

    申请日：2006-08-23

    Applicant: Seog-Heon Ham ,  Gunhee Han ,  Dong-Myung Lee

    Inventor： Seog-Heon Ham ,  Gunhee Han ,  Dong-Myung Lee

    IPC: H03M1/56

    CPC classification number: H04N5/3742 ,  H04N5/3575 ,  H04N5/378

    Abstract: An image sensor comprises an active pixel sensor (APS) array, a first analog-to-digital converter (ADC) and a ramp signal generator. The APS array includes a plurality of pixels arranged in a two-dimensional matrix, wherein the APS array generates a reset signal and an image signal for each selected column of the APS array. The first ADC includes a correlated double sampling (CDS) circuit array comprising CDS circuits that are arranged for each column of the APS array, wherein the first ADC generates a digital code from a signal corresponding to the difference between the reset signal and the image signal which are generated by the CDS circuit using a ramp signal. The ramp signal generator generates the ramp signal, wherein a second ADC receives a feedback of the generated ramp signal and generates a feedback reference code, and wherein the ramp signal generator calibrates the ramp signal based on a comparison using the feedback reference code.

    Abstract translation: 图像传感器包括有源像素传感器（APS）阵列，第一模数转换器（ADC）和斜坡信号发生器。 APS阵列包括以二维矩阵排列的多个像素，其中APS阵列为APS阵列的每个选定的列产生复位信号和图像信号。 第一ADC包括相关双采样（CDS）电路阵列，其包括为APS阵列的每列排列的CDS电路，其中第一ADC从与复位信号和图像信号之间的差对应的信号产生数字码 其由CDS电路使用斜坡信号产生。 斜坡信号发生器产生斜坡信号，其中第二ADC接收产生的斜坡信号的反馈并产生反馈参考码，并且其中斜坡信号发生器基于使用反馈参考码的比较来校准斜坡信号。

    Method and apparatus for canceling fixed pattern noise in CMOS image sensor
    58.
    发明申请
    Method and apparatus for canceling fixed pattern noise in CMOS image sensor 失效
    CMOS图像传感器中消除固定图案噪声的方法和装置

    公开(公告)号：US20090046177A1

    公开(公告)日：2009-02-19

    申请号：US12073625

    申请日：2008-03-07

    Applicant: Myoung-Su Lee ,  Su-Hun Lim ,  Jin-Kyeong Heo ,  Tae-Chan Kim ,  Seog-Heon Ham ,  Yong-In Han

    Inventor： Myoung-Su Lee ,  Su-Hun Lim ,  Jin-Kyeong Heo ,  Tae-Chan Kim ,  Seog-Heon Ham ,  Yong-In Han

    IPC: H04N5/217 ,  H04N5/335

    CPC classification number: H04N5/378 ,  H04N5/3658 ,  H04N5/374

    Abstract: An apparatus for canceling a fixed pattern noise in a CMOS image sensor includes a storage device, a fixed pattern noise operation circuit, and a fixed pattern noise canceling circuit. The storage device stores first reference fixed pattern noises operated in a vertical blank section of an (n−1)th frame. The fixed pattern noise operation circuit calculates second reference fixed pattern noises based on the first reference fixed pattern noises stored in the storage device and blank fixed pattern noises output in a vertical blank section of an n-th frame and outputs the second reference fixed pattern noises to the storage device to update the first reference fixed pattern noises to the second reference fixed pattern noises. The fixed pattern noise canceling circuit cancels active fixed pattern noises in combination signals based on the combination signals output in an active section of an (n+1)th frame and including the active fixed pattern noises and pixel signals and the second reference fixed pattern noises output from the storage device.

    Abstract translation: 一种用于消除CMOS图像传感器中的固定图案噪声的装置，包括存储装置，固定图案噪声运算电路和固定图案噪声消除电路。 存储装置存储在第（n-1）帧的垂直空白部分中操作的第一参考固定模式噪声。 固定模式噪声运算电路基于存储在存储装置中的第一参考固定模式噪声和在第n帧的垂直空白部分中输出的空白固定模式噪声来计算第二参考固定模式噪声，并输出第二参考固定模式噪声 到存储装置，以将第一参考固定模式噪声更新为第二参考固定模式噪声。 固定图案噪声消除电路基于在第（n + 1）帧的有效部分中输出的组合信号消除组合信号中的有源固定模式噪声，并且包括有源固定模式噪声和像素信号以及第二参考固定模式噪声 从存储设备输出。

    CMOS IMAGE SENSOR AND IMAGE SIGNAL DETECTING METHOD THEREOF
    59.
    发明申请
    CMOS IMAGE SENSOR AND IMAGE SIGNAL DETECTING METHOD THEREOF 有权
    CMOS图像传感器和图像信号检测方法

    公开(公告)号：US20080111057A1

    公开(公告)日：2008-05-15

    申请号：US11874404

    申请日：2007-10-18

    Applicant: Dong-Myung LEE ,  Dong-Soo KIM ,  Gun-Hee HAN ,  Seog-Heon HAM

    Inventor： Dong-Myung LEE ,  Dong-Soo KIM ,  Gun-Hee HAN ,  Seog-Heon HAM

    IPC: H01L27/00

    CPC classification number: H04N5/378 ,  H01L27/14643 ,  H04N5/3535

    Abstract: A complementary metal oxide semiconductor (CMOS) image sensor includes a photodiode, a switch and a comparator. The switch transfers a sensing signal to a sensing node from the photodiode. The comparator, which is directly connected to the sensing node, compares the sensing signal of the sensing node with a reference signal. The comparator outputs a signal corresponding to a voltage difference between the sensing signal and the reference signal.

    Abstract translation: 互补金属氧化物半导体（CMOS）图像传感器包括光电二极管，开关和比较器。 开关将感测信号从光电二极管传送到感测节点。 直接连接到感测节点的比较器将感测节点的感测信号与参考信号进行比较。 比较器输出对应于感测信号和参考信号之间的电压差的信号。

    Image sensor using auto-calibrated ramp signal for improved image quality and driving method thereof
    60.
    发明申请
    Image sensor using auto-calibrated ramp signal for improved image quality and driving method thereof 有权
    图像传感器使用自动校准斜坡信号，以提高图像质量及其驱动方法

    公开(公告)号：US20070046802A1

    公开(公告)日：2007-03-01

    申请号：US11508653

    申请日：2006-08-23

    Applicant: Seog-Heon Ham ,  Gunhee Han ,  Dong-Myung Lee

    Inventor： Seog-Heon Ham ,  Gunhee Han ,  Dong-Myung Lee

    IPC: H04N5/335

    CPC classification number: H04N5/3742 ,  H04N5/3575 ,  H04N5/378

    Abstract: An image sensor comprises an active pixel sensor (APS) array, a first analog-to-digital converter (ADC) and a ramp signal generator. The APS array includes a plurality of pixels arranged in a two-dimensional matrix, wherein the APS array generates a reset signal and an image signal for each selected column of the APS array. The first ADC includes a correlated double sampling (CDS) circuit array comprising CDS circuits that are arranged for each column of the APS array, wherein the first ADC generates a digital code from a signal corresponding to the difference between the reset signal and the image signal which are generated by the CDS circuit using a ramp signal. The ramp signal generator generates the ramp signal, wherein a second ADC receives a feedback of the generated ramp signal and generates a feedback reference code, and wherein the ramp signal generator calibrates the ramp signal based on a comparison using the feedback reference code.

    Abstract translation: 图像传感器包括有源像素传感器（APS）阵列，第一模数转换器（ADC）和斜坡信号发生器。 APS阵列包括以二维矩阵排列的多个像素，其中APS阵列为APS阵列的每个选定的列产生复位信号和图像信号。 第一ADC包括相关双采样（CDS）电路阵列，其包括为APS阵列的每列排列的CDS电路，其中第一ADC从与复位信号和图像信号之间的差对应的信号产生数字码 其由CDS电路使用斜坡信号产生。 斜坡信号发生器产生斜坡信号，其中第二ADC接收产生的斜坡信号的反馈并产生反馈参考码，并且其中斜坡信号发生器基于使用反馈参考码的比较来校准斜坡信号。

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