公开(公告)号：US20130193305A1

公开(公告)日：2013-08-01

申请号：US13363704

申请日：2012-02-01

Applicant: Zhihao Xu ,  Guangbin Zhang

Inventor： Zhihao Xu ,  Guangbin Zhang

IPC: H01L27/146

CPC classification number: H04N5/3698 ,  H04N5/376

Abstract: An example image sensor includes a plurality of pixels arranged in an array of columns and rows, a row driver, and a control logic circuit. The row driver is coupled to pixels in a row of the array to provide a variable driving voltage to drive transistors included in the pixels of the row. The control logic circuit is coupled to provide one or more control logic signals to the row driver. The row driver adjusts a magnitude of the driving voltage in response to the one or more control logic signals.

Abstract translation: 示例性图像传感器包括排列成列和行阵列的多个像素，行驱动器和控制逻辑电路。 行驱动器耦合到阵列的一行中的像素，以提供可变驱动电压以驱动包括在该行的像素中的晶体管。 控制逻辑电路被耦合以向行驱动器提供一个或多个控制逻辑信号。 行驱动器响应于一个或多个控制逻辑信号来调节驱动电压的大小。

公开(公告)号：US08952795B2

公开(公告)日：2015-02-10

申请号：US13605919

申请日：2012-09-06

Applicant: Zhihao Xu ,  Guangbin Zhang

Inventor： Zhihao Xu ,  Guangbin Zhang

IPC: H04N3/14 ,  H04N5/335

CPC classification number: H04N5/378 ,  H04N5/365

Abstract: A circuit for providing signal amplification with reduced fixed pattern noise. In an embodiment, the circuit includes an amplifier and a plurality of legs coupled in parallel with one another between a first node for an input of the amplifier and a second node for an output of the amplifier. Control logic selects a first combination of the plurality of legs for a first configuration of the circuit to provide a first loop gain with the amplifier. In another embodiment, the control logic further selects a second combination of the plurality of legs for a second configuration of the circuit to provide a second loop gain with the amplifier, wherein the first loop gain is substantially equal to the second loop gain.

Abstract translation: 用于提供具有降低的固定图案噪声的信号放大的电路。 在一个实施例中，该电路包括放大器和多个支路，它们彼此并联连接在用于放大器的输入的第一节点和用于放大器输出的第二节点之间。 控制逻辑选择用于电路的第一配置的多个支路的第一组合以便与放大器提供第一环路增益。 在另一个实施例中，控制逻辑还选择多个支路的第二组合用于电路的第二配置，以便与放大器提供第二环路增益，其中第一环路增益基本上等于第二环路增益。

公开(公告)号：US08885085B2

公开(公告)日：2014-11-11

申请号：US13363704

申请日：2012-02-01

Applicant: Zhihao Xu ,  Guangbin Zhang

Inventor： Zhihao Xu ,  Guangbin Zhang

IPC: H04N5/335 ,  H04N5/369 ,  H04N5/376

CPC classification number: H04N5/3698 ,  H04N5/376

Abstract: An example image sensor includes a plurality of pixels arranged in an array of columns and rows, a row driver, and a control logic circuit. The row driver is coupled to pixels in a row of the array to provide a variable driving voltage to drive transistors included in the pixels of the row. The control logic circuit is coupled to provide one or more control logic signals to the row driver. The row driver adjusts a magnitude of the driving voltage in response to the one or more control logic signals.

Abstract translation: 示例性图像传感器包括排列成列和行阵列的多个像素，行驱动器和控制逻辑电路。 行驱动器耦合到阵列的一行中的像素，以提供可变驱动电压以驱动包括在该行的像素中的晶体管。 控制逻辑电路被耦合以向行驱动器提供一个或多个控制逻辑信号。 行驱动器响应于一个或多个控制逻辑信号来调节驱动电压的大小。

公开(公告)号：US20140062599A1

公开(公告)日：2014-03-06

申请号：US13605919

申请日：2012-09-06

Applicant: Zhihao Xu ,  Guangbin Zhang

Inventor： Zhihao Xu ,  Guangbin Zhang

IPC: H03G3/00

CPC classification number: H04N5/378 ,  H04N5/365

Abstract: A circuit for providing signal amplification with reduced fixed pattern noise. In an embodiment, the circuit includes an amplifier and a plurality of legs coupled in parallel with one another between a first node for an input of the amplifier and a second node for an output of the amplifier. Control logic selects a first combination of the plurality of legs for a first configuration of the circuit to provide a first loop gain with the amplifier. In another embodiment, the control logic further selects a second combination of the plurality of legs for a second configuration of the circuit to provide a second loop gain with the amplifier, wherein the first loop gain is substantially equal to the second loop gain.

Abstract translation: 用于提供具有降低的固定图案噪声的信号放大的电路。 在一个实施例中，该电路包括放大器和多个支路，它们彼此并联连接在用于放大器的输入的第一节点和用于放大器输出的第二节点之间。 控制逻辑选择用于电路的第一配置的多个支路的第一组合以便与放大器提供第一环路增益。 在另一个实施例中，控制逻辑还选择多个支路的第二组合用于电路的第二配置，以便与放大器提供第二环路增益，其中第一环路增益基本上等于第二环路增益。

公开(公告)号：US20150189197A1

公开(公告)日：2015-07-02

申请号：US14538772

申请日：2014-11-11

Applicant: Li Guo ,  Guangbin Zhang

Inventor： Li Guo ,  Guangbin Zhang

IPC: H04N5/345 ,  H04N5/374

CPC classification number: H04N5/376 ,  G11C8/10 ,  H04N3/1512

Abstract: The present invention provides a compact row decoder with multiple voltage support. The row decoder may include a global driver and a plurality of row-level drivers. The global driver may include one or more voltage level shifters that are operable to provide multiple voltages required to drive each of the plurality of row-level drivers. The plurality of row-level drivers each may include only one voltage level shifter. In an example, the row-level driver includes an address decoder implemented in a digital domain providing an address selection signal, a voltage level shifter to convert the address selection signal to an analog domain, and a tow driver receiving driving signals from the global driver. The row driver has no voltage level shifter contained therein. Thus, the row-level drivers and the row decoder may be very compact. The present invention further provides a CMOS image sensor including the row decoder and a method of operating the CMOS image sensor.

Abstract translation: 本发明提供具有多个电压支持的紧凑行解码器。 行解码器可以包括全局驱动器和多个行级驱动器。 全局驱动器可以包括一个或多个电压电平移位器，其可操作以提供驱动多个行级驱动器中的每一个所需的多个电压。 多个行级驱动器各自可以仅包括一个电压电平移位器。 在一个示例中，行级驱动器包括实现在提供地址选择信号的数字域中的地址解码器，将地址选择信号转换为模拟域的电压电平移位器，以及从全局驱动器接收驱动信号的拖曳驱动器 。 行驱动器中没有电压电平转换器。 因此，行级驱动器和行解码器可以非常紧凑。 本发明还提供一种包括行解码器的CMOS图像传感器和操作CMOS图像传感器的方法。

公开(公告)号：US08957973B2

公开(公告)日：2015-02-17

申请号：US13493263

申请日：2012-06-11

Applicant: Guangbin Zhang ,  Weihua Xiong

Inventor： Guangbin Zhang ,  Weihua Xiong

IPC: H04N5/228

CPC classification number: H04N5/2258 ,  H04N5/23216 ,  H04N5/23219 ,  H04N5/23222 ,  H04N5/23293

Abstract: A method of capturing an image includes activating a first image sensor and capturing a sequence of images with a second image sensor. A determination is made as to whether the sequence of images captured by the second image sensor includes a shutter gesture. If a shutter gesture is included in the sequence of images captured by the second image sensor, the first image sensor captures a target image in response.

Abstract translation: 拍摄图像的方法包括激活第一图像传感器并利用第二图像传感器捕获图像序列。 确定由第二图像传感器捕获的图像序列是否包括快门手势。 如果由第二图像传感器捕获的图像序列中包括快门手势，则第一图像传感器响应地捕获目标图像。

公开(公告)号：US08872088B2

公开(公告)日：2014-10-28

申请号：US13585492

申请日：2012-08-14

Applicant: Guangbin Zhang ,  Zhiqiang Song

Inventor： Guangbin Zhang ,  Zhiqiang Song

IPC: H01L27/00 ,  H01L27/146 ,  H03F3/08

CPC classification number: H01L27/14641 ,  H03F3/087 ,  H04N5/365 ,  H04N5/3658 ,  H04N5/374 ,  H04N5/378

Abstract: Embodiments of an image sensor including a pixel array with a plurality of pixels arranged into rows and columns. Control circuitry coupled to the pixels in each row, and an analog-to-digital converter is coupled to the pixels in each column of the pixel array. Each analog-to-digital converter includes a ramp comparator, and a variable current source coupled to the ramp comparator to provide a variable bias current to the ramp comparator. The bias current can adjusted during reading of a row of pixels according to a dynamic bias current profile that maintains at least a specified margin between the random noise of the pixels and an acceptable noise level. Other embodiments are disclosed and claimed.

Abstract translation: 包括具有排列成行和列的多个像素的像素阵列的图像传感器的实施例。 耦合到每行中的像素的控制电路和模数转换器耦合到像素阵列的每列中的像素。 每个模数转换器包括斜坡比较器和耦合到斜坡比较器的可变电流源，以向斜坡比较器提供可变偏置电流。 根据在像素的随机噪声和可接受的噪声水平之间保持至少指定的余量的动态偏置电流分布，可以在读取一行像素期间调整偏置电流。 公开和要求保护其他实施例。

公开(公告)号：US20120113306A1

公开(公告)日：2012-05-10

申请号：US13080031

申请日：2011-04-05

Applicant: Tiejun Dai ,  Rui Wang ,  Zhengyu Li ,  Joseph Yang ,  Min Qu ,  Yaowu Mo ,  Shaomin Ding ,  Guangbin Zhang

Inventor： Tiejun Dai ,  Rui Wang ,  Zhengyu Li ,  Joseph Yang ,  Min Qu ,  Yaowu Mo ,  Shaomin Ding ,  Guangbin Zhang

IPC: H04N3/14 ,  H04N5/335

CPC classification number: H04N5/378 ,  H04N5/3742

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08730364B2

公开(公告)日：2014-05-20

申请号：US13080031

申请日：2011-04-05

Applicant: Tiejun Dai ,  Rui Wang ,  Zhengyu Li ,  Joseph Yang ,  Min Qu ,  Yaowu Mo ,  Shaomin Ding ,  Guangbin Zhang

Inventor： Tiejun Dai ,  Rui Wang ,  Zhengyu Li ,  Joseph Yang ,  Min Qu ,  Yaowu Mo ,  Shaomin Ding ,  Guangbin Zhang

IPC: H04N5/335

CPC classification number: H04N5/378 ,  H04N5/3742

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130329074A1

公开(公告)日：2013-12-12

申请号：US13493263

申请日：2012-06-11

Applicant: Guangbin Zhang ,  Weihua Xiong

Inventor： Guangbin Zhang ,  Weihua Xiong

IPC: H04N5/225

CPC classification number: H04N5/2258 ,  H04N5/23216 ,  H04N5/23219 ,  H04N5/23222 ,  H04N5/23293

Abstract: A method of capturing an image includes activating a first image sensor and capturing a sequence of images with a second image sensor. A determination is made as to whether the sequence of images captured by the second image sensor includes a shutter gesture. If a shutter gesture is included in the sequence of images captured by the second image sensor, the first image sensor captures a target image in response.

Abstract translation: 拍摄图像的方法包括激活第一图像传感器并利用第二图像传感器捕获图像序列。 确定由第二图像传感器捕获的图像序列是否包括快门手势。 如果由第二图像传感器捕获的图像序列中包括快门手势，则第一图像传感器响应地捕获目标图像。