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1. 发明授权

US08730364B2 Image sensor with pipelined column analog-to-digital converters 有权
标题翻译：具有流水线列模数转换器的图像传感器
公开(公告)号：US08730364B2
公开(公告)日：2014-05-20
申请号：US13080031
申请日：2011-04-05
申请人： Tiejun Dai , Rui Wang , Zhengyu Li , Joseph Yang , Min Qu , Yaowu Mo , Shaomin Ding , Guangbin Zhang
发明人： Tiejun Dai , Rui Wang , Zhengyu Li , Joseph Yang , Min Qu , Yaowu Mo , Shaomin Ding , Guangbin Zhang
IPC分类号： H04N5/335
CPC分类号： H04N5/378 , H04N5/3742
摘要： An image sensor includes a plurality of pixel cells organized into rows and columns of a pixel array. A bit line is coupled to each of the pixel cells within a line of the pixel array. Readout circuitry is coupled to the bit line to readout the image data from the pixel cells within the line. The readout circuitry includes a line amplifier coupled to the bit line to amplify the image data and first and second sample and convert circuits coupled in parallel to an output of the line amplifier to reciprocally and contemporaneously sample the image data and convert the image data from analog values to digital values.
摘要翻译：图像传感器包括被组织成像素阵列的行和列的多个像素单元。位线耦合到像素阵列的一行内的每个像素单元。读出电路耦合到位线以从线内的像素单元读出图像数据。读出电路包括耦合到位线以放大图像数据的线路放大器以及并行耦合到线路放大器的输出端的第一和第二采样和转换电路，以便对该图像数据进行往复同时采样并将图像数据从模拟值到数字值。

2. 发明授权

US08643750B2 Reducing noise in image sensors by concurrently reading reset and image signal levels from active and reference pixels 有权
标题翻译：通过同时从有源和参考像素读取复位和图像信号电平，从而降低图像传感器中的噪声
公开(公告)号：US08643750B2
公开(公告)日：2014-02-04
申请号：US12930015
申请日：2010-12-22
申请人： Yaowu Mo , Chen Xu
发明人： Yaowu Mo , Chen Xu
IPC分类号： H04N5/217 , H04N5/235
CPC分类号： H04N5/3575 , H04N5/2176 , H04N5/365
摘要： A method of one aspect includes reading a reset level of an active pixel, and concurrently, reading a reset level of a reference pixel. The method also includes reading an image signal level of the active pixel, and concurrently, reading an image signal level of the reference pixel. A reduced noise image signal level of the active pixel is generated based on the reset levels and the image signal levels of the active and reference pixels. Other methods are disclosed as well as apparatus and systems.
摘要翻译：一个方面的方法包括读取有源像素的复位电平，同时读取参考像素的复位电平。该方法还包括读取有源像素的图像信号电平，同时读取参考像素的图像信号电平。基于有效和参考像素的复位电平和图像信号电平，生成有源像素的降低噪声图像信号电平。公开了其它方法以及装置和系统。

3. 发明申请

US20130087683A1 MULTIPLE-ROW CONCURRENT READOUT SCHEME FOR HIGH-SPEED CMOS IMAGE SENSOR WITH BACKSIDE ILLUMINATION 有权
标题翻译：具有背光照明功能的高速CMOS图像传感器的多路并流读出方案
公开(公告)号：US20130087683A1
公开(公告)日：2013-04-11
申请号：US13365746
申请日：2012-02-03
申请人： Yaowu Mo , Chen Xu , Min Qu
发明人： Yaowu Mo , Chen Xu , Min Qu
IPC分类号： H01L27/148 , H01L27/146
CPC分类号： H04N5/347 , H04N5/3532 , H04N5/355 , H04N5/3745 , H04N5/378
摘要： A system, method and apparatus implementing a multiple-row concurrent readout scheme for high-speed CMOS image sensor with backside illumination are described herein. In one embodiment, the method of operating an image sensor starts acquiring image data within a color pixel array and the image data from a first set of multiple rows in the color pixel array is then concurrently readout. Concurrently reading out the image data from the first set of multiple rows includes concurrently selecting a first portion of the image data from the first set by first readout circuitry and a second portion of the image data from the first set by second readout circuitry. The first and second portions of the image data from the first set are different and the first and second readout circuitries are also different. Other embodiments are also described.
摘要翻译：这里描述了实现具有背面照明的高速CMOS图像传感器的多行并行读出方案的系统，方法和装置。在一个实施例中，操作图像传感器的方法开始获取彩色像素阵列内的图像数据，然后同时读出来自彩色像素阵列中的第一组多行的图像数据。同时从第一组多行读出图像数据包括由第一读出电路同时从第一组中选择图像数据的第一部分，以及通过第二读出电路从第一组中选择图像数据的第二部分。来自第一组的图像数据的第一和第二部分是不同的，并且第一和第二读出电路也不同。还描述了其它实施例。

4. 发明授权

US08288701B2 Method and system for controlling power to pixels in an imager 有权
标题翻译：用于控制成像器中像素的功率的方法和系统
公开(公告)号：US08288701B2
公开(公告)日：2012-10-16
申请号：US12396546
申请日：2009-03-03
申请人： Yandong Chen , Yaowu Mo
发明人： Yandong Chen , Yaowu Mo
IPC分类号： H01L27/00 , H01L31/00 , H04N5/335
CPC分类号： G09G3/3696 , G09G2330/02
摘要： A system for controlling power applied to pixels in an imager. A first switch coupling the internal power node of the pixels to the power supply of the imager. A second switch coupling the internal power node of the pixels to a ground potential or low potential. The first and second switches are controlled complimentary to each other during integration and readout of the pixels. A third switch providing a high impedance mode where the internal power node and n+ guard ring are isolated from the operating and ground potentials.
摘要翻译：用于控制施加到成像器中的像素的电力的系统。将像素的内部功率节点耦合到成像器的电源的第一开关。将像素的内部功率节点耦合到地电位或低电位的第二开关。在集成和读出像素期间，第一和第二开关彼此互补地被控制。提供高阻抗模式的第三开关，其中内部功率节点和n +保护环与操作和接地电位隔离。

5. 发明申请

US20090190005A1 Method and apparatus providing pixel-wise noise correction 有权
标题翻译：提供像素噪声校正的方法和装置
公开(公告)号：US20090190005A1
公开(公告)日：2009-07-30
申请号：US12010538
申请日：2008-01-25
申请人： Yaowu Mo , Chen Xu
发明人： Yaowu Mo , Chen Xu
IPC分类号： H04N5/217 , H04N5/335
CPC分类号： H04N5/363 , H04N5/3575 , H04N5/361 , H04N5/374
摘要： Methods and apparatuses providing pixel-wise noise correction using pixels to provide reference values during pixel readout operations.
摘要翻译：使用像素提供像素级噪声校正以在像素读出操作期间提供参考值的方法和装置。

6. 发明申请

US20130089175A1 ARITHMETIC COUNTER CIRCUIT, CONFIGURATION AND APPLICATION FOR HIGH PERFORMANCE CMOS IMAGE SENSORS 有权
标题翻译：算术计数器电路，高性能CMOS图像传感器的配置和应用
公开(公告)号：US20130089175A1
公开(公告)日：2013-04-11
申请号：US13365790
申请日：2012-02-03
申请人： Yaowu Mo , Chen Xu , Min Qu , Tiejun Dai , Rui Wang , Xiaodong Luo
发明人： Yaowu Mo , Chen Xu , Min Qu , Tiejun Dai , Rui Wang , Xiaodong Luo
IPC分类号： H03K29/00
CPC分类号： H04N5/347 , H04N5/3532 , H04N5/355 , H04N5/3745 , H04N5/378
摘要： An arithmetic counter circuit for high performance CMOS image sensors includes a plurality of flip-flops of a plurality of counter stages and a plurality of multiplexers of the plurality of counter stages being coupled to the plurality of flip-flops. Each of the plurality of multiplexers coupled to receive control signals including at least one of a toggle signal, a keep signal, a shift enable signal, or a mode signal. The control signals select the output of each of the plurality of multiplexers. Each of the plurality of flip-flops is coupled to be in one of a toggle state, a keep state, a reset state or a set state based on inputs received from the plurality of multiplexers. Other embodiments are described.
摘要翻译：用于高性能CMOS图像传感器的算术计数器电路包括多个计数器级的多个触发器，并且多个计数器级的多个多路复用器耦合到多个触发器。多个多路复用器中的每一个被耦合以接收包括切换信号，保持信号，移位使能信号或模式信号中的至少一个的控制信号。控制信号选择多个多路复用器中的每一个的输出。多个触发器中的每一个基于从多个多路复用器接收的输入被耦合成处于切换状态，保持状态，复位状态或设置状态之一。描述其他实施例。

7. 发明申请

US20130088624A1 HIGH DYNAMIC RANGE SUB-SAMPLING ARCHITECTURE 有权
标题翻译：高动态范围子采样架构
公开(公告)号：US20130088624A1
公开(公告)日：2013-04-11
申请号：US13365766
申请日：2012-02-03
申请人： Yaowu Mo , Chen Xu , Min Qu , Xiaodong Luo , Donghui Wu
发明人： Yaowu Mo , Chen Xu , Min Qu , Xiaodong Luo , Donghui Wu
IPC分类号： H04N5/335
CPC分类号： H04N5/347 , H04N5/3532 , H04N5/355 , H04N5/3745 , H04N5/378
摘要： A method of implementing high dynamic range bin algorithm in an image sensor including a pixel array with a first super row having a first integration time and a second super row having a second integration time is described. The method starts by reading out image data from the first super row into a counter. Image data from the first super row is multiplied by a factor to obtain multiplied data. The factor is a ratio between the first and the second integration times. The multiplied data is then compared with a predetermined data. The image data from the second super row is readout into the counter. If the multiplied data is larger than the predetermined data, the multiplied data from the first super row is stored in the counter. If not, the image data from the second super row is stored. Other embodiments are also described.
摘要翻译：描述了在包括具有第一积分时间的第一超级行的像素阵列和具有第二积分时间的第二超级行的图像传感器中实现高动态范围bin算法的方法。该方法从将第一超级行的图像数据读出到计数器开始。来自第一超级行的图像数据乘以因子以获得相乘的数据。因子是第一和第二积分时间之间的比率。然后将相乘的数据与预定数据进行比较。来自第二超级行的图像数据被读出到计数器中。如果相乘数据大于预定数据，则来自第一超级行的相乘数据被存储在计数器中。如果没有，则存储来自第二超级行的图像数据。还描述了其它实施例。

8. 发明申请

US20120162484A1 Reducing noise in image sensors by concurrently reading reset and image signal levels from active and reference pixels 有权
标题翻译：通过同时从有源和参考像素读取复位和图像信号电平，从而降低图像传感器中的噪声
公开(公告)号：US20120162484A1
公开(公告)日：2012-06-28
申请号：US12930015
申请日：2010-12-22
申请人： Yaowu Mo , Chen Xu
发明人： Yaowu Mo , Chen Xu
IPC分类号： H04N5/217
CPC分类号： H04N5/3575 , H04N5/2176 , H04N5/365
摘要： A method of one aspect includes reading a reset level of an active pixel, and concurrently, reading a reset level of a reference pixel. The method also includes reading an image signal level of the active pixel, and concurrently, reading an image signal level of the reference pixel. A reduced noise image signal level of the active pixel is generated based on the reset levels and the image signal levels of the active and reference pixels. Other methods are disclosed as well as apparatus and systems.
摘要翻译：一个方面的方法包括读取有源像素的复位电平，同时读取参考像素的复位电平。该方法还包括读取有源像素的图像信号电平，同时读取参考像素的图像信号电平。基于有效和参考像素的复位电平和图像信号电平，生成有源像素的降低噪声图像信号电平。公开了其它方法以及装置和系统。

9. 发明申请

US20120113306A1 IMAGE SENSOR WITH PIPELINED COLUMN ANALOG-TO-DIGITAL CONVERTERS 有权
标题翻译：图像传感器与管道柱模数转换器
公开(公告)号：US20120113306A1
公开(公告)日：2012-05-10
申请号：US13080031
申请日：2011-04-05
申请人： Tiejun Dai , Rui Wang , Zhengyu Li , Joseph Yang , Min Qu , Yaowu Mo , Shaomin Ding , Guangbin Zhang
发明人： Tiejun Dai , Rui Wang , Zhengyu Li , Joseph Yang , Min Qu , Yaowu Mo , Shaomin Ding , Guangbin Zhang
IPC分类号： H04N3/14 , H04N5/335
CPC分类号： H04N5/378 , H04N5/3742
摘要： An image sensor includes a plurality of pixel cells organized into rows and columns of a pixel array. A bit line is coupled to each of the pixel cells within a line of the pixel array. Readout circuitry is coupled to the bit line to readout the image data from the pixel cells within the line. The readout circuitry includes a line amplifier coupled to the bit line to amplify the image data and first and second sample and convert circuits coupled in parallel to an output of the line amplifier to reciprocally and contemporaneously sample the image data and convert the image data from analog values to digital values.
摘要翻译：图像传感器包括被组织成像素阵列的行和列的多个像素单元。位线耦合到像素阵列的一行内的每个像素单元。读出电路耦合到位线以从线内的像素单元读出图像数据。读出电路包括耦合到位线以放大图像数据的线路放大器以及并行耦合到线路放大器的输出端的第一和第二采样和转换电路，以便对该图像数据进行往复同时采样并将图像数据从模拟值到数字值。

10. 发明授权

US08102451B2 VLN biasing scheme to achieve low vertical shading for high-speed and large-format CMOS image sensors with top/bottom readout scheme 有权
标题翻译： VLN偏置方案可实现高/高格式CMOS图像传感器的低垂直阴影，具有顶/底读出方案
公开(公告)号：US08102451B2
公开(公告)日：2012-01-24
申请号：US12264629
申请日：2008-11-04
申请人： Yaowu Mo , Yandong Chen
发明人： Yaowu Mo , Yandong Chen
IPC分类号： H04N5/335
CPC分类号： H04N5/365 , H04N5/378
摘要： A VLN biasing scheme implemented in an image sensor with top/bottom readout. A first and second current sink coupled to the top of a first column of pixels and a second column of pixels respectively. A third and fourth current sink coupled to the bottom of a first column of pixels and a second column of pixels respectively. During column readout, each current sink sinks an equal amount of current.
摘要翻译：在具有顶部/底部读数的图像传感器中实现的VLN偏置方案。第一和第二电流宿分别耦合到第一列像素的顶部和第二列像素。第三和第四电流宿分别耦合到第一列像素的底部和第二列像素。在列读数期间，每个电流吸收器吸收等量的电流。

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