公开(公告)号：US08253214B2

公开(公告)日：2012-08-28

申请号：US11440894

申请日：2006-05-25

Applicant: Robert M. Guidash ,  Ravi Mruthyunjaya ,  Weize Xu

Inventor： Robert M. Guidash ,  Ravi Mruthyunjaya ,  Weize Xu

IPC: H01L31/02

CPC classification number: H01L27/14641 ,  H01L27/14609

Abstract: An image sensor includes a unit cell having a plurality of pixels; the unit cell comprising an amplifier input transistor that is shared by the plurality of pixels; a plurality of floating diffusions that are joined by a floating diffusion interconnect layer and are connected to the amplifier input transistor; and an interconnect layer which forms an output signal wire which shields the floating diffusion interconnect layer.

Abstract translation: 图像传感器包括具有多个像素的单位单元; 所述单元包括由所述多个像素共享的放大器输入晶体管; 多个浮动扩散，其通过浮动扩散互连层连接并连接到放大器输入晶体管; 以及形成屏蔽浮动扩散互连层的输出信号线的互连层。

公开(公告)号：US07465934B2

公开(公告)日：2008-12-16

申请号：US11240746

申请日：2005-09-30

Applicant: Weize Xu

Inventor： Weize Xu

IPC: G01T1/24 ,  H01L27/00 ,  H01L31/062

CPC classification number: H04N5/378 ,  H04N5/3742 ,  H04N9/045

Abstract: A CMOS image sensor includes a plurality of pixels arranged in an array; a plurality of sample and hold arrays; and a routing matrix which routes a signal from each pixel to one of the sample and hold arrays in a predetermined order.

Abstract translation: CMOS图像传感器包括排列成阵列的多个像素; 多个采样和保持阵列; 以及路由矩阵，其以预定顺序将来自每个像素的信号路由到采样和保持阵列之一。

公开(公告)号：US07382008B2

公开(公告)日：2008-06-03

申请号：US11416055

申请日：2006-05-02

Applicant: Weize Xu

Inventor： Weize Xu

IPC: H01L31/062 ,  H01L31/113

CPC classification number: H04N5/353 ,  H04N5/3653 ,  H04N5/378

Abstract: An image sensor includes a photosensitive region that accumulates charge corresponding to received incident light; a transfer gate for transferring all or a portion of the charge from the photosensitive region; a voltage supply having an increasing voltage over time that is applied to the transfer gate; a floating diffusion for receiving the all or a portion of the charge from the photosensitive region and converting the charge to a voltage; an amplifier for receiving and amplifying a signal from the floating diffusion; a pulse detector for detecting a voltage pulse from the amplifier; and a counter for counting clock cycles between initiation of the increasing voltage until a signal is received from the detector which indicates initiation of charge transfer from the photosensitive region to the floating diffusion.

Abstract translation: 图像传感器包括对与所接收的入射光相对应的电荷累积的感光区域; 用于从感光区域传送电荷的全部或一部分的转移门; 具有随着时间的增加的电压施加到传输门的电压源; 用于从光敏区域接收全部或一部分电荷并将电荷转换成电压的浮动扩散; 用于接收和放大来自浮动扩散的信号的放大器; 用于检测来自放大器的电压脉冲的脉冲检测器; 以及计数器，用于计数在增加的电压的起始之间的时钟周期，直到从检测器接收到指示从感光区域到浮动扩散的电荷转移的启动的信号。

公开(公告)号：US20070200942A1

公开(公告)日：2007-08-30

申请号：US11363130

申请日：2006-02-27

Applicant: Weize Xu

Inventor： Weize Xu

IPC: H04N3/14 ,  H04N5/335

CPC classification number: H04N5/357 ,  H04N5/3742 ,  H04N5/3765

Abstract: An image sensor includes a plurality of pixels for capturing an image; a sample and hold circuit array having a plurality of units for receiving signals from the plurality of pixels representing the captured image; a decoder for selecting each of the units of the sample and hold circuit array for output; and a delay circuit that includes an adjustable time delay to the decoder for compensating for time delays.

Abstract translation: 图像传感器包括用于捕获图像的多个像素; 采样和保持电路阵列，具有多个单元，用于从表示所捕获图像的多个像素接收信号; 用于选择所述采样和保持电路阵列中的每个单元用于输出的解码器; 以及延迟电路，其包括到解码器的可调时间延迟以补偿时间延迟。

公开(公告)号：US20070075255A1

公开(公告)日：2007-04-05

申请号：US11240746

申请日：2005-09-30

Applicant: Weize Xu

Inventor： Weize Xu

IPC: G01T1/24

CPC classification number: H04N5/378 ,  H04N5/3742 ,  H04N9/045

Abstract: A CMOS image sensor includes a plurality of pixels arranged in an array; a plurality of sample and hold arrays; and a routing matrix which routes a signal from each pixel to one of the sample and hold arrays in a predetermined order.

Abstract translation: CMOS图像传感器包括排列成阵列的多个像素; 多个采样和保持阵列; 以及路由矩阵，其以预定顺序将来自每个像素的信号路由到采样和保持阵列之一。

公开(公告)号：US20060209200A1

公开(公告)日：2006-09-21

申请号：US11080123

申请日：2005-03-15

Applicant: Weize Xu

Inventor： Weize Xu

IPC: H04N5/335

CPC classification number: H04N5/335

Abstract: An image sensor includes a plurality of photo-sensitive elements arranged in an array in which each photo-sensitive element converts incident light into a charge packet; a charge-to-voltage converter that receives each charge packet and converts the charge packet into a voltage; a voltage-to-frequency converter that receives each voltage and converts the voltage into a signal having a frequency; and a frequency-to-digital signal converter that receives each signal having the frequency and converts the signal having the frequency into a digital signal.

Abstract translation: 图像传感器包括以阵列布置的多个光敏元件，每个光敏元件将入射光转换成电荷包; 电荷 - 电压转换器，其接收每个电荷包并将电荷包转换成电压; 电压 - 频率转换器，其接收每个电压并将电压转换成具有频率的信号; 以及频率到数字信号转换器，其接收具有频率的每个信号，并将具有频率的信号转换成数字信号。

公开(公告)号：US20050094005A1

公开(公告)日：2005-05-05

申请号：US10699758

申请日：2003-11-03

Applicant: Weize Xu

Inventor： Weize Xu

IPC: H04N5/361 ,  H04N5/369 ,  H04N9/64

CPC classification number: H04N5/361 ,  H04N5/347 ,  H04N5/378

Abstract: A method for outputting signals from dark reference pixels, the method includes the steps of transferring signals from dark reference pixels that are shielded from light to a plurality of storage circuit elements; and transferring signals substantially simultaneously from each of the plurality of storage circuit elements to an operational amplifier on one clock cycle which operational amplifier averages all the signals from the sample and hold circuits for providing an approximate average dark reference signal.

Abstract translation: 一种用于从暗参考像素输出信号的方法，所述方法包括以下步骤：将屏蔽的暗参考像素的信号传送到多个存储电路元件; 并且在一个时钟周期将基本上同时从多个存储电路元件中的每一个传送信号到运算放大器，运算放大器对来自采样和保持电路的所有信号进行平均，以提供近似的平均暗参考信号。

公开(公告)号：US07652706B2

公开(公告)日：2010-01-26

申请号：US11354444

申请日：2006-02-15

Applicant: Weize Xu

Inventor： Weize Xu

IPC: H04N5/335

CPC classification number: H04N5/37455 ,  H04N5/35527 ,  H04N5/365 ,  H04N5/3745

Abstract: An image sensor includes a photosensitive region that accumulates charge corresponding to received incident light; a transfer gate for transferring charge from the photosensitive region; a voltage supply having an increasing voltage over time; a floating diffusion for receiving the charge from the photosensitive region and converting the charge to a voltage; an amplifier for receiving and amplifying a signal from the floating diffusion; a comparator for comparing a voltage from the amplifier to a reference voltage; and a counter for counting clock cycles between initiation of the increasing voltage until a signal is received from the comparator indicating charge transfer from the photosensitive region to the floating diffusion; wherein a digital signal is generated that represents an unfilled capacity of the photosensitive region.

Abstract translation: 图像传感器包括对与所接收的入射光相对应的电荷累积的感光区域; 用于从光敏区转移电荷的转移门; 电压随时间增加的电压; 用于从光敏区域接收电荷并将电荷转换成电压的浮动扩散; 用于接收和放大来自浮动扩散的信号的放大器; 比较器，用于将来自放大器的电压与参考电压进行比较; 以及计数器，用于计数在增加的电压的起始之间的时钟周期，直到从比较器接收到指示从感光区域到浮动扩散的电荷转移的信号; 其中产生表示感光区域的未填充容量的数字信号。

公开(公告)号：US20080239105A1

公开(公告)日：2008-10-02

申请号：US11694291

申请日：2007-03-30

Applicant: Weize Xu

Inventor： Weize Xu

IPC: H01L27/00 ,  H04N5/217 ,  H04N5/335

CPC classification number: H04N5/3745 ,  H04N5/3575 ,  H04N5/365 ,  H04N5/3658

Abstract: A CMOS image sensor includes a photodiode for receiving incident light that is converted to a charge signal; a transfer mechanism for transferring the charge to a sensing node that converts the charge signal to an image voltage signal; and a sample-and-hold circuit. The sample-and-hold circuit includes a capacitor that receives the image voltage signal; and only one buffer amplifier that passes the image voltage signal to a differential amplifier. The buffer amplifier also receives a reset signal that is passed to the differential amplifier.

Abstract translation: CMOS图像传感器包括：光电二极管，用于接收转换成电荷信号的入射光; 用于将电荷转移到将电荷信号转换为图像电压信号的感测节点的传送机构; 和采样保持电路。 采样保持电路包括接收图像电压信号的电容器; 并且只有一个缓冲放大器将图像电压信号传递到差分放大器。 缓冲放大器还接收传递给差分放大器的复位信号。

公开(公告)号：US20080204567A1

公开(公告)日：2008-08-28

申请号：US11678293

申请日：2007-02-23

Applicant: Weize Xu

Inventor： Weize Xu

IPC: H04N5/228

CPC classification number: H03F3/505 ,  H03F3/005 ,  H03F3/082 ,  H03F3/087 ,  H03F3/45475 ,  H03F3/45744 ,  H03F3/45968 ,  H03F2200/375 ,  H03F2203/45136 ,  H03F2203/45551 ,  H03F2203/45586 ,  H03F2203/45588 ,  H03F2203/45612 ,  H04N5/3575 ,  H04N5/374 ,  H04N5/378

Abstract: An active pixel image sensor comprising: (a) a pixel array having a plurality of pixels, each pixel comprising: (i) a photosensitive region connected to a charge-to-voltage conversion region; and (ii) an amplifier connected to the charge-to-voltage conversion region; and (b) a sample and hold circuit connected to one or more pixels comprising: (i) two capacitors for receiving and storing a reset signal and an image signal; (ii) two buffer amplifiers for respectively receiving the reset signal and the image signal respectively from the two capacitors; and (iii) a reference generator circuit connected to an input of the buffer amplifiers for removing offset of the buffer amplifier.

Abstract translation: 一种有源像素图像传感器，包括：（a）具有多个像素的像素阵列，每个像素包括：（i）连接到电荷 - 电压转换区域的感光区域; 和（ii）连接到电荷 - 电压转换区的放大器; 和（b）连接到一个或多个像素的采样和保持电路，包括：（i）用于接收和存储复位信号和图像信号的两个电容器; （ii）两个缓冲放大器，用于分别从两个电容器接收复位信号和图像信号; 和（iii）参考发生器电路，连接到缓冲放大器的输入端，用于去除缓冲放大器的偏移。