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    METHOD FOR READING OUT HIGH DYNAMIC RANGE IMAGE FRAME IN IMAGE SENSOR AND DEVICE USING THE SAME
    1.
    发明公开
    METHOD FOR READING OUT HIGH DYNAMIC RANGE IMAGE FRAME IN IMAGE SENSOR AND DEVICE USING THE SAME 有权
    方法用于读取具有高动态范围的静止图像在图像传感器和设备

    公开(公告)号：EP2520080A1

    公开(公告)日：2012-11-07

    申请号：EP10840469.0

    申请日：2010-12-01

    Applicant: BYD Company Limited ,  Shenzhen BYD Auto R&D Company Limited

    Inventor： QIN, Zhi ,  FU, Jingjun ,  HU, Wenge

    IPC: H04N5/335

    CPC classification number: H04N5/35581

    Abstract: A method for reading out a high dynamic range image in an image sensor comprises: resetting a pixel array row by row from an initial row of the pixel array to process a first integration treatment for a first image when reaching a first start time; resetting the pixel array row by row from the initial row of the pixel array to process a second integration treatment for the first image when reaching a second start time; and resetting the pixel array row by row from the initial row of the pixel array to process a first integration treatment for a second image when reaching a third start time.

    ANALOG IMAGE SIGNAL PROCESSING CIRCUIT FOR CMOS IMAGE SENSOR
    5.
    发明公开
    ANALOG IMAGE SIGNAL PROCESSING CIRCUIT FOR CMOS IMAGE SENSOR 有权
    ANALOG-BILDSIGNALVERARBEITUNGSSCHALTUNGFÜREINEN CMOS-BILDSENSOR

    公开(公告)号：EP1971131A1

    公开(公告)日：2008-09-17

    申请号：EP06840681.8

    申请日：2006-12-28

    Applicant: Byd Company Limited

    Inventor： HU, Wenge

    IPC: H04N5/14

    CPC classification number: H04N9/045 ,  H04N5/3575 ,  H04N5/361 ,  H04N5/365 ,  H04N5/378

    Abstract: An image signal processing circuit for CMOS image sensor comprises a differential operational amplifier, input stage capacitors, and output stage capacitors. The input stage capacitors comprise a first positive input stage switching capacitor array and a first negative input stage switching capacitor array. The first positive input stage switching capacitor array is configured to input analog image signals, a control end of the first positive input stage switching capacitor array is connected to a color gain control signal end, and an output end of the first positive input stage switching capacitor array is coupled to a positive input end of the differential operational amplifier. The first negative input stage switching capacitor array is configured to input a reference level signal, a control end of the first negative input stage switching capacitor array is connected to the color gain control signal end, and an output end of the first negative input stage switching capacitor array is coupled to a negative input end of the differential operational amplifier. The output stage capacitors are connected between the output end and the input end of the differential operational amplifier. In the present invention, two or more control functions are implemented with a single circuit, therefore, with the imaging effects guaranteed, the circuit structure is simplified, the size of the CMOS image sensor chip is reduced, and thus the cost is reduced. The present invention meets the developing trend of product miniaturization.

    Abstract translation: 用于CMOS图像传感器的图像信号处理电路包括差分运算放大器，输入级电容器和输出级电容器。 输入级电容器包括第一正输入级切换电容器阵列和第一负输入级切换电容器阵列。 第一正输入级开关电容器阵列被配置为输入模拟图像信号，第一正输入级切换电容器阵列的控制端连接到彩色增益控制信号端，第一正输入级开关电容器的输出端 阵列耦合到差分运算放大器的正输入端。 第一负输入级切换电容器阵列被配置为输入参考电平信号，第一负输入级切换电容器阵列的控制端连接到彩色增益控制信号端，第一负输入级切换的输出端 电容器阵列耦合到差分运算放大器的负输入端。 输出级电容器连接在差分运算放大器的输出端和输入端之间。 在本发明中，通过单个电路实现两个以上的控制功能，因此，通过保证成像效果，电路结构简化，CMOS图像传感器芯片的尺寸减小，成本降低。 本发明满足产品小型化的发展趋势。

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