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：US07385636B2

公开(公告)日：2008-06-10

申请号：US10836884

申请日：2004-04-30

Applicant: Weize Xu

Inventor： Weize Xu

IPC: H04N5/217

CPC classification number: H04N5/361 ,  H04N5/3575 ,  H04N5/3742

Abstract: An image sensor includes a plurality of pixels for capturing incident light that is converted to a signal representing an image; wherein noise is combined with a signal representing both the image and a reset level; a plurality of dark reference pixels that generate noise that substantially correspond or equally correspond to the noise in the image and reset level; and a sample and hold circuit that reads out the image signal and cancels or substantially cancels out the noise from the image signal and reset level by canceling the noise from image and reset level with the noise generated from the dark reference pixels.

Abstract translation: 图像传感器包括用于捕获被转换成表示图像的信号的入射光的多个像素; 其中噪声与表示图像和复位电平的信号组合; 多个暗参考像素，其产生基本上对应于或等同地对应于图像中的噪声和复位电平的噪声; 以及采样保持电路，通过从暗参考像素产生的噪声消除来自图像的噪声和复位电平，读出图像信号并且抵消或基本上消除来自图像信号和复位电平的噪声。

公开(公告)号：US20070257284A1

公开(公告)日：2007-11-08

申请号：US11416055

申请日：2006-05-02

Applicant: Weize Xu

Inventor： Weize Xu

IPC: H01L21/00

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：US20070188640A1

公开(公告)日：2007-08-16

申请号：US11354444

申请日：2006-02-15

Applicant: Weize Xu

Inventor： Weize Xu

IPC: H04N3/14 ,  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：US20060273240A1

公开(公告)日：2006-12-07

申请号：US11398514

申请日：2006-04-05

Applicant: R. Guidash ,  Ravi Mruthyunjaya ,  Weize Xu

Inventor： R. Guidash ,  Ravi Mruthyunjaya ,  Weize Xu

IPC: H01L27/00

CPC classification number: H04N5/37457 ,  H04N5/365

Abstract: A method of making an image sensor, the method includes the steps of providing a plurality of pixels each with a photodetector; providing an amplifier that is shared between the plurality of photodetectors; providing a transfer gate associated with each photodetector; providing a charge-to-voltage conversion region that is shared between the plurality of photodetectors; determining a capacitance between each transfer gate and the charge-to-voltage conversion region; and modifying the capacitance to be substantially the same by altering a physical structure within one or more pixels.

Abstract translation: 一种制作图像传感器的方法，所述方法包括以下步骤：提供多个像素，每个像素具有光电检测器; 提供在所述多个光电检测器之间共享的放大器; 提供与每个光电检测器相关联的传送门; 提供在所述多个光电检测器之间共享的电荷 - 电压转换区域; 确定每个转移栅极和电荷 - 电压转换区域之间的电容; 并且通过改变一个或多个像素内的物理结构来将电容修改为基本相同。

公开(公告)号：US20060203114A1

公开(公告)日：2006-09-14

申请号：US11075431

申请日：2005-03-08

Applicant: Weize Xu

Inventor： Weize Xu

IPC: H04N5/335 ,  H04N3/14 ,  H01L31/113 ,  H01L31/062

CPC classification number: H01L27/14609 ,  H04N5/3741

Abstract: A CMOS image sensor includes a plurality of pixels defining an imaging area each pixel includes a photosensitive area that converts incident light into a charge; a first transistor having a transfer gate that transfers charge from the photosensitive area to a charge-to-voltage region; a second transistor that resets the voltage of the charge-to-voltage region; a third transistor that amplifies voltage from the charge-to-voltage region; and a select mechanism positioned outside the imaging area on the image sensor that selects a predefined number of pixels for readout from the third transistor.

Abstract translation: CMOS图像传感器包括限定成像区域的多个像素，每个像素包括将入射光转换成电荷的感光区域; 第一晶体管，其具有将电荷从感光区域转移到电荷至电压区域的转移栅极; 第二晶体管，其复位所述电荷至电压区域的电压; 放大从电荷到电压区域的电压的第三晶体管; 以及位于图像传感器上的成像区域外部的选择机构，其选择用于从第三晶体管读出的预定数量的像素。