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    • 55. 发明申请
    • HIGH DYNAMIC RANGE SUB-SAMPLING ARCHITECTURE
    • 高动态范围子采样架构
    • US20130088624A1
    • 2013-04-11
    • US13365766
    • 2012-02-03
    • Yaowu MoChen XuMin QuXiaodong LuoDonghui Wu
    • Yaowu MoChen XuMin QuXiaodong LuoDonghui Wu
    • H04N5/335
    • H04N5/347H04N5/3532H04N5/355H04N5/3745H04N5/378
    • 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.
    • 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。
    • 58. 发明授权
    • Method and apparatus for providing a rolling double reset timing for global storage in image sensors
    • 用于提供用于图像传感器中的全局存储的滚动双重复位定时的方法和装置
    • US08085321B2
    • 2011-12-27
    • US12222864
    • 2008-08-18
    • Chen XuParker Altice
    • Chen XuParker Altice
    • H04N5/217H01L27/00H01L29/66
    • H04N5/3745H01L27/14609H04N5/359H04N5/361H04N5/363H04N5/374
    • An apparatus for and a method of operating an array of pixels of an image sensor, where each pixel includes at least a photosensor, an associated storage device and a floating diffusion region and the array of pixels is configured in a plurality of rows and columns. The photosensors associated with the pixels are reset and charges are accumulated in the photosensor. The accumulated charges are then globally transferred to storage devices associated with the pixels. A rolling double reset is used to reduce the deleterious effects on the accumulated charges stored in the storage devices. The accumulated charges stored in the storage devices are transferred to floating diffusion regions associated with the pixels and the charges residing in the floating diffusion region are read out. In a second embodiment the storage device is eliminated and the rolling double reset is used to reduce the deleterious effects on the accumulated charges stored in the floating diffusion region.
    • 一种用于操作图像传感器的像素阵列的装置和方法,其中每个像素至少包括光传感器,相关联的存储装置和浮动扩散区域,并且像素阵列被配置成多个行和列。 与像素相关联的光电传感器被复位,并且电荷累积在光电传感器中。 然后将累积的费用全局转移到与像素相关联的存储设备。 使用滚动双重复位来减少存储在存储设备中的累积电荷的有害影响。 存储在存储装置中的累积电荷被转移到与像素相关联的浮动扩散区域,并且读出驻留在浮动扩散区域中的电荷。 在第二实施例中,消除了存储装置,并且使用滚动双重复位来减少对存储在浮动扩散区域中的累积电荷的有害影响。