公开(公告)号：US20090046177A1

公开(公告)日：2009-02-19

申请号：US12073625

申请日：2008-03-07

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

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

IPC分类号： H04N5/217 ,  H04N5/335

CPC分类号： H04N5/378 ,  H04N5/3658 ,  H04N5/374

摘要： 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.

摘要翻译： 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。

公开(公告)号：US07492401B2

公开(公告)日：2009-02-17

申请号：US11046946

申请日：2005-01-31

申请人： Su-Hun Lim

发明人： Su-Hun Lim

IPC分类号： H04N5/217 ,  H04N3/14 ,  H04N5/335

CPC分类号： H04N5/3575 ,  H03F3/005 ,  H04N5/37455

摘要： A correlated double sampling (CDS) amplifier for an image sensing device includes a plurality of capacitors and a switching network coupled to the plurality of capacitors and to a pixel of the image sensing device. The switching network is configured to couple the capacitors in parallel as an initial CDS difference voltage is generated, and then is configured to couple the capacitors in series for generating a final CDS difference voltage that is a multiple of the initial CDS difference voltage.

摘要翻译： 用于图像感测装置的相关双采样（CDS）放大器包括耦合到多个电容器和图像感测装置的像素的多个电容器和开关网络。 开关网络被配置为当产生初始CDS差异电压时并联耦合电容器，然后被配置为串联耦合电容器，以产生作为初始CDS差值电压倍数的最终CDS差值电压。

公开(公告)号：US20080224191A1

公开(公告)日：2008-09-18

申请号：US12074573

申请日：2008-03-05

申请人： Jung-Chak Ahn ,  Yi-Tae Kim ,  Kyung-Ho Lee ,  Hyuck-In Kwon ,  Ju-Hyun Ko ,  Tetsuo Asaba ,  Jong-Jin Lee ,  Su-Hun Lim ,  Jung-Yeon Kim ,  Se-Young Kim ,  Sung-In Hwang

发明人： Jung-Chak Ahn ,  Yi-Tae Kim ,  Kyung-Ho Lee ,  Hyuck-In Kwon ,  Ju-Hyun Ko ,  Tetsuo Asaba ,  Jong-Jin Lee ,  Su-Hun Lim ,  Jung-Yeon Kim ,  Se-Young Kim ,  Sung-In Hwang

IPC分类号： H01L31/101

CPC分类号： H01L29/0847 ,  H01L27/14609 ,  H01L29/1083 ,  H01L29/78

摘要： An image pickup device includes an active pixel sensor (APS), a row driver, and a leakage current breaker. The active pixel sensor includes an array of a plurality of pixels. The row driver selects at least one pixel to be activated to output signals. The leakage current breaker decreases the leakage current through the unselected pixels by applying a leakage current breaker voltage at the bit lines of the APS array.

摘要翻译： 图像拾取装置包括有源像素传感器（APS），行驱动器和泄漏电流断路器。 有源像素传感器包括多个像素的阵列。 行驱动器选择要激活的至少一个像素来输出信号。 泄漏电流断路器通过在APS阵列的位线处施加泄漏电流断路器电压来减小通过未选择的像素的泄漏电流。

公开(公告)号：US07116138B2

公开(公告)日：2006-10-03

申请号：US11045043

申请日：2005-01-31

申请人： Su-hun Lim

发明人： Su-hun Lim

IPC分类号： H03M1/10

CPC分类号： H03M1/123 ,  H03M1/56

摘要： A ramp signal generation circuit is disclosed. The ramp signal generation circuit comprises a ramp signal generator, a buffer, a comparator, and a switching circuit. The switching circuit provides current to an output of the ramp signal generation circuit in response to a control signal output by the comparator. When a high slew rate is required, the output of the ramp signal generation circuit is driven by the current provided by the switching circuit. Otherwise, the output of the ramp signal generation circuit is driven by an output of the buffer.

摘要翻译： 公开了一种斜坡信号发生电路。 斜坡信号发生电路包括斜坡信号发生器，缓冲器，比较器和开关电路。 开关电路响应于由比较器输出的控制信号，向斜坡信号发生电路的输出端提供电流。 当需要高压摆率时，斜坡信号发生电路的输出由开关电路提供的电流驱动。 否则，斜坡信号发生电路的输出由缓冲器的输出驱动。

公开(公告)号：US07508429B2

公开(公告)日：2009-03-24

申请号：US11157461

申请日：2005-06-21

申请人： Su-hun Lim ,  Tetsuo Asaba

发明人： Su-hun Lim ,  Tetsuo Asaba

IPC分类号： H04N5/217 ,  H04N3/14 ,  H04N5/335 ,  H04N9/04 ,  H04N9/083

CPC分类号： H04N5/347

摘要： Provided are an improved solid-state image-sensing device for averaging sub-sampled analog signals and a method for driving the same. The solid-state image-sensing device receives a video signal from each pixel column and converts the video signal into a digital signal while a switch for averaging is turned off when the solid-state image-sensing device captures a still image. When the solid-state image-sensing device photographs a moving picture, one of two CDS circuits receives a signal corresponding to an average of video signals of columns having the same color pixel and converts the signal into a digital signal using the switch turned on.

摘要翻译： 提供了用于平均次采样模拟信号的改进的固态图像感测装置及其驱动方法。 固态图像感测装置从固体摄像装置捕获静止图像时，从每个像素列接收视频信号，并将该视频信号转换为数字信号，同时关闭平均开关。 当固态图像感测装置拍摄运动图像时，两个CDS电路中的一个接收与具有相同颜色像素的列的视频信号的平均值相对应的信号，并且使用打开的开关将该信号转换为数字信号。

公开(公告)号：US20070108370A1

公开(公告)日：2007-05-17

申请号：US11589722

申请日：2006-10-31

申请人： Su-hun Lim

发明人： Su-hun Lim

IPC分类号： H01L27/00

CPC分类号： H04N5/3598

摘要： Provided are a CIS circuit that does not increase an initial voltage charge time allocated by a CDS even if a pixel size is reduced and a method of providing an initial charge to the CIS circuit. The CIS circuit may include an APS block, a current source block and a charge supply block. The APS block may output APS signals from APS output terminals in response to sensed image transfer signals, pixel select signals and pixel reset signals. The current source block may control currents flowing from the APS output terminals to a power supply in response to a bias voltage. The charge supply block may provide a quantity of charges to the APS output terminals in response to a representative reset signal and a pre-resent signal.

摘要翻译： 提供了即使像素尺寸减小也不会增加由CDS分配的初始电荷充电时间的CIS电路，以及向CIS电路提供初始电荷的方法。 CIS电路可以包括APS块，电流源块和充电源块。 响应于感测到的图像传输信号，像素选择信号和像素复位信号，APS块可以从APS输出端输出APS信号。 电流源块可以响应偏置电压来控制从APS输出端子流向电源的电流。 响应于代表性的复位信号和预置信号，充电供应块可以向APS输出端提供一定量的电荷。

公开(公告)号：US20060262205A1

公开(公告)日：2006-11-23

申请号：US11403026

申请日：2006-04-12

申请人： Su-Hun Lim

发明人： Su-Hun Lim

IPC分类号： H04N5/217

CPC分类号： H04N5/3745 ,  H04N5/3456 ,  H04N5/3458 ,  H04N5/3575

摘要： A column analog-to-digital conversion apparatus includes a first correlated double sampling (CDS) and comparison unit of a CDS and comparison circuit for generating a first comparison result signal in response to a first pixel output signal and a ramp signal, a second CDS and comparison unit of the CDS and comparison circuit for generating a second comparison result signal in response to the first pixel output signal and the ramp signal in a sub-sampling mode, and a data buffer for determining a code value of a most significant bit (MSB) based on the second comparison result signal, determining code values of remaining lower bits based on a counting value outputted from a counter, and generating a digital code including the MSB and the remaining lower bits.

摘要翻译： 列模数转换装置包括CDS和比较电路的第一相关双采样（CDS）和比较单元，用于响应于第一像素输出信号和斜坡信号产生第一比较结果信号，第二CDS 以及CDS和比较电路的比较单元，用于响应于副采样模式中的第一像素输出信号和斜坡信号产生第二比较结果信号;以及数据缓冲器，用于确定最高有效位的代码值（ MSB），基于从计数器输出的计数值来确定剩余较低位的代码值，以及生成包括MSB和其余较低位的数字代码。

公开(公告)号：US20050168601A1

公开(公告)日：2005-08-04

申请号：US11046946

申请日：2005-01-31

申请人： Su-Hun Lim

发明人： Su-Hun Lim

IPC分类号： H01L27/146 ,  H01L27/148 ,  H03F3/00 ,  H04N3/14 ,  H04N5/335 ,  H04N5/357 ,  H04N5/363 ,  H04N5/374 ,  H04N5/378 ,  H04N5/217

CPC分类号： H04N5/3575 ,  H03F3/005 ,  H04N5/37455

摘要： A correlated double sampling (CDS) amplifier for an image sensing device includes a plurality of capacitors and a switching network coupled to the plurality of capacitors and to a pixel of the image sensing device. The switching network is configured to couple the capacitors in parallel as an initial CDS difference voltage is generated, and then is configured to couple the capacitors in series for generating a final CDS difference voltage that is a multiple of the initial CDS difference voltage.

摘要翻译： 用于图像感测装置的相关双采样（CDS）放大器包括耦合到多个电容器和图像感测装置的像素的多个电容器和开关网络。 开关网络被配置为当产生初始CDS差异电压时并联耦合电容器，然后被配置为串联耦合电容器，以产生作为初始CDS差值电压倍数的最终CDS差值电压。

公开(公告)号：US07646410B2

公开(公告)日：2010-01-12

申请号：US11370634

申请日：2006-03-08

申请人： Su-Hun Lim

发明人： Su-Hun Lim

IPC分类号： H04N5/217 ,  H04N3/14

CPC分类号： H04N5/363 ,  H04N5/3575 ,  H04N5/378 ,  H04N9/045

摘要： Provided are a solid state image sensing device and method for sub-sampling using inter-column analog domain signal summation, where, in the solid state image sensing device, a CDS unit receives reset signals from neighboring columns of the same color in an APS array, receives video signals from pixels generating the reset signals, and generates modulation signals respectively corresponding to the differences between the reset signals and the video signals, the modulation signals are activated according to activation of the previous modulation signals, and a digital signal output circuit generates a corresponding digital signal based on the final modulation signal corresponding to the sum of inter-column analog video signals among the modulation signals.

摘要翻译： 提供了一种使用列间模拟域信号求和的子采样的固态图像感测装置和方法，其中在固态图像感测装置中，CDS单元从APS阵列中的相同颜色的相邻列接收复位信号 从产生复位信号的像素接收视频信号，并产生分别对应于复位信号与视频信号之差的调制信号，调制信号根据先前调制信号的激活而被激活，数字信号输出电路产生 基于对应于调制信号之间的列间模拟视频信号之和的最终调制信号的对应的数字信号。

公开(公告)号：US07623175B2

公开(公告)日：2009-11-24

申请号：US11360729

申请日：2006-02-23

申请人： Su-hun Lim

发明人： Su-hun Lim

IPC分类号： H04N5/335

CPC分类号： H04N5/347 ,  H01L27/14621 ,  H01L27/14643

摘要： Provided are a CMOS image sensor (CIS) type image sensing device for averaging and sub-sampling analog image signals at a variable sub-sampling rate and a method of driving the same. The image sensing device includes: a two-dimensional active pixel sensor (APS) array including pixels arranged in rows and columns; an averaging unit averages reset signals and image signals alternately generated from each of pixels corresponding to odd- numbered and even-numbered rows and columns in based on a predetermined sub-sampling rate in a sub-sampling mode by repeating a method of accumulating, averaging, (and dumping) the reset signals and the image signals, and generating a comparison signal corresponding to a difference between the average of the reset signals and the average of the image signals; and a conventional digital signal output circuit that generates digital signals corresponding to the sub-sampled (averaged) image signals generated from the pixels represented by the comparison signal. The CIS type image sensing device can analog-average image signals output from pixels at a variable sub-sampling rate and carry out a sub-sampling operations for moving pictures, without increasing chip size.

摘要翻译： 提供了一种用于以可变的子采样率对模拟图像信号进行平均和次采样的CMOS图像传感器（CIS）型图像感测装置及其驱动方法。 图像感测装置包括：包括排列成行和列的像素的二维有源像素传感器（APS）阵列; 平均单元通过重复累积平均的方法，基于在子采样模式中的预定子采样率来平均从与奇数和偶数行和列相对应的每个像素交替产生的复位信号和图像信号 （和倾倒）复位信号和图像信号，并且产生与复位信号的平均值和图像信号的平均值之间的差相对应的比较信号; 以及常规数字信号输出电路，其产生与由比较信号表示的像素产生的子采样（平均）图像信号相对应的数字信号。 CIS型图像感测装置可以以可变的子采样率从像素输出的图像信号进行模拟平均，并且对于运动图像进行子采样操作，而不增加芯片尺寸。