公开(公告)号：US07116138B2

公开(公告)日：2006-10-03

申请号：US11045043

申请日：2005-01-31

Applicant: Su-hun Lim

Inventor： Su-hun Lim

IPC: H03M1/10

CPC classification number: H03M1/123 ,  H03M1/56

Abstract: 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.

Abstract translation: 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：US07623175B2

公开(公告)日：2009-11-24

申请号：US11360729

申请日：2006-02-23

Applicant: Su-hun Lim

Inventor： Su-hun Lim

IPC: H04N5/335

CPC classification number: H04N5/347 ,  H01L27/14621 ,  H01L27/14643

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07508429B2

公开(公告)日：2009-03-24

申请号：US11157461

申请日：2005-06-21

Applicant: Su-hun Lim ,  Tetsuo Asaba

Inventor： Su-hun Lim ,  Tetsuo Asaba

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

CPC classification number: H04N5/347

Abstract: 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.

Abstract translation: 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

Applicant: Su-hun Lim

Inventor： Su-hun Lim

IPC: H01L27/00

CPC classification number: H04N5/3598

Abstract: 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.

Abstract translation: 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：US07525079B2

公开(公告)日：2009-04-28

申请号：US11589722

申请日：2006-10-31

Applicant: Su-hun Lim

Inventor： Su-hun Lim

IPC: H01L27/00 ,  H04N3/14 ,  H04N5/335

CPC classification number: H04N5/3598

Abstract: 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.

Abstract translation: 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：US20050168251A1

公开(公告)日：2005-08-04

申请号：US11045043

申请日：2005-01-31

Applicant: Su-hun Lim

Inventor： Su-hun Lim

IPC: H03K4/72 ,  H03M1/10 ,  H03M1/12 ,  H03M1/56

CPC classification number: H03M1/123 ,  H03M1/56

Abstract: 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.

Abstract translation: 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：US20060187328A1

公开(公告)日：2006-08-24

申请号：US11360729

申请日：2006-02-23

Applicant: Su-hun Lim

Inventor： Su-hun Lim

IPC: H04N5/335

CPC classification number: H04N5/347 ,  H01L27/14621 ,  H01L27/14643

Abstract: 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.

公开(公告)号：US20050280730A1

公开(公告)日：2005-12-22

申请号：US11157461

申请日：2005-06-21

Applicant: Su-hun Lim ,  Tetsuo Asaba

Inventor： Su-hun Lim ,  Tetsuo Asaba

IPC: H04N3/14 ,  H04N5/21 ,  H04N5/335 ,  H04N5/341 ,  H04N5/353 ,  H04N5/357 ,  H04N5/363 ,  H04N5/374 ,  H04N5/378 ,  H04N9/07 ,  H04N5/217

CPC classification number: H04N5/347

Abstract: 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.

Abstract translation: 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。