Dual-mode photosensitive pixel with gain stage

    公开(公告)号:US09825189B2

    公开(公告)日:2017-11-21

    申请号:US14684021

    申请日:2015-04-10

    发明人: Joshua Lund

    摘要: A photosensitive pixel with gain stage is disclosed. The photosensitive pixel with gain stage may receive an input light stimulus and output a corresponding output voltage in response to the input light stimulus. The output voltage may correspond linearly to the magnitude of the input light stimulus over a linear operating region and logarithmically to the magnitude of the input light stimulus over a logarithmic operating region. In this manner, the photosensitive pixel with gain stage may be both sensitive to input light stimuli over the linear operating region and may exhibit dynamic range enabling non-saturated response to input light stimuli over the logarithmic operating region.

    Linear-logarithmic image sensors and electronic devices including the same
    5.
    发明授权
    Linear-logarithmic image sensors and electronic devices including the same 有权
    线性对数图像传感器和包括其的电子设备

    公开(公告)号:US09413991B2

    公开(公告)日:2016-08-09

    申请号:US14592495

    申请日:2015-01-08

    IPC分类号: H04N3/14 H04N5/335 H04N5/355

    CPC分类号: H04N5/35518 H04N5/35527

    摘要: A linear-logarithmic image sensor includes a pixel array, a signal generation unit, and a control unit. The pixel array includes at least one unit pixel that generates a leakage signal corresponding to leakage photo-charges and that sequentially generates a first analog signal corresponding to a portion of accumulated photo-charges and a second analog signal corresponding to a whole of the accumulated photo-charges by resetting a floating diffusion node and transferring the accumulated photo-charges from a storage node to the floating diffusion node in response to first and second transfer control signals that are sequentially activated. The signal generation unit includes at least one signal generation block that generates a final analog signal based on the leakage signal, the first analog signal, and the second analog signal. The control unit controls the pixel array and the signal generation unit.

    摘要翻译: 线性对数图像传感器包括像素阵列,信号生成单元和控制单元。 像素阵列包括至少一个单位像素,其产生对应于泄漏光电荷的泄漏信号,并且顺序地产生对应于累积光电荷的一部分的第一模拟信号和对应于整个累积照片的第二模拟信号 - 通过重置浮动扩散节点并且响应于顺序地激活的第一和第二传送控制信号将累积的光电荷从存储节点传送到浮动扩散节点来充电。 信号生成单元包括至少一个信号生成块,其基于泄漏信号,第一模拟信号和第二模拟信号生成最终的模拟信号。 控制单元控制像素阵列和信号生成单元。

    SEMICONDUCTOR DEVICE, RAMP SIGNAL CONTROL METHOD, IMAGE DATA GENERATING METHOD, AND CAMERA SYSTEM
    6.
    发明申请
    SEMICONDUCTOR DEVICE, RAMP SIGNAL CONTROL METHOD, IMAGE DATA GENERATING METHOD, AND CAMERA SYSTEM 有权
    半导体器件,RAMP信号控制方法,图像数据生成方法和相机系统

    公开(公告)号:US20160021323A1

    公开(公告)日:2016-01-21

    申请号:US14753497

    申请日:2015-06-29

    发明人: Yasutoshi AIBARA

    摘要: Conventional semiconductor devices disadvantageously failed to sufficiently enlarge a dynamic range. A semiconductor device according to an embodiment includes a plurality of registers 21 to 26 that sets a gradient of a ramp signal. In the semiconductor device, the values in the registers 24 to 26 that are reflected in the gradient of the ramp signal are switched at predetermined timings, whereby a ramp signal with a gradient that changes at the predetermined timings is generated, and an analog-to-digital converter uses the ramp signal to convert pixel signals acquired from a pixel area into digital values.

    摘要翻译: 传统的半导体器件不利于充分放大动态范围。 根据实施例的半导体器件包括设置斜坡信号的梯度的多个寄存器21至26。 在半导体装置中,在斜坡信号的斜率中反映的寄存器24至26中的值以预定的定时被切换,由此产生具有在预定定时改变的梯度的斜坡信号,并且模拟到 数字转换器使用斜坡信号将从像素区域获取的像素信号转换为数字值。

    Image sensor pixel array having output response curve including logarithmic pattern for image sensor based terminal
    7.
    发明授权
    Image sensor pixel array having output response curve including logarithmic pattern for image sensor based terminal 有权
    具有输出响应曲线的图像传感器像素阵列,包括基于图像传感器的终端对数模式

    公开(公告)号:US09183425B2

    公开(公告)日:2015-11-10

    申请号:US12421476

    申请日:2009-04-09

    申请人: Ynjiun P. Wang

    发明人: Ynjiun P. Wang

    摘要: There is described in one embodiment an indicia reading terminal having an image sensor pixel array incorporated therein, wherein the terminal is operative for decoding of decodable indicia and for providing color frames of image data for storage or transmission. An image sensor based terminal in one embodiment can include an image sensor having a hybrid monochrome and color image sensor pixel array wherein the image sensor pixel array includes a first subset of monochrome pixels and a second subset of color pixels. In one embodiment, an output response curve for the image sensor pixel array can include a logarithmic pattern.

    摘要翻译: 在一个实施例中描述了具有并入其中的图像传感器像素阵列的标记读取终端,其中终端可操作用于对可解码标记进行解码,并用于提供用于存储或传输的图像数据的彩色帧。 在一个实施例中基于图像传感器的终端可以包括具有混合单色和彩色图像传感器像素阵列的图像传感器,其中图像传感器像素阵列包括单色像素的第一子集和彩色像素的第二子集。 在一个实施例中,用于图像传感器像素阵列的输出响应曲线可以包括对数模式。

    INTEGRATING PIXELS AND METHODS OF OPERATION
    8.
    发明申请
    INTEGRATING PIXELS AND METHODS OF OPERATION 有权
    整合像素和操作方法

    公开(公告)号:US20150281612A1

    公开(公告)日:2015-10-01

    申请号:US14242597

    申请日:2014-04-01

    IPC分类号: H04N5/378 H01L27/146

    摘要: A pixel cell includes a first integration capacitor, a second integration capacitor, a photo detector and a transistor. The first integration capacitor includes a first lead operatively coupled to the photo detector. The second integration capacitor includes a first lead. The transistor is operatively coupled between the leads of the first and second integration capacitors for enabling current flow between the photo detector and the second integration capacitor only once a threshold voltage is met on the first integration capacitor.

    摘要翻译: 像素单元包括第一积分电容器,第二积分电容器,光电检测器和晶体管。 第一积分电容器包括可操作地耦合到光电检测器的第一引线。 第二积分电容器包括第一引线。 晶体管可操作地耦合在第一和第二积分电容器的引线之间,用于仅在第一积分电容器上满足阈值电压时,才使电流在光电检测器和第二积分电容器之间流动。

    System and method for a high dynamic range sensitive sensor element or array
    10.
    发明授权
    System and method for a high dynamic range sensitive sensor element or array 失效
    高动态范围敏感传感器元件或阵列的系统和方法

    公开(公告)号:US08735793B2

    公开(公告)日:2014-05-27

    申请号:US12852459

    申请日:2010-08-07

    申请人: Sorin Davidovici

    发明人: Sorin Davidovici

    IPC分类号: H01L27/00

    摘要: A high dynamic range sensitive sensor element or array is provided which uses phase domain integration techniques to accurately capture high and low intensity images. The sensor element of the present invention is not limited by dynamic range characteristics exhibited by prior art solid-state pixel structures and is thus capable of capturing a full spectrum of electromagnetic radiation to provide a high quality output image.

    摘要翻译: 提供了高动态范围敏感传感器元件或阵列,其使用相域积分技术来精确地捕获高和低强度图像。 本发明的传感器元件不受现有技术的固态像素结构所表现的动态范围特性的限制,因此能够捕获全范围的电磁辐射以提供高质量的输出图像。