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    • 1. 发明公开
    • RADIATION SENSING PIXEL ELEMENT FOR AN IMAGE SENSOR APPARATUS
    • 用于图像传感器设备的辐射传感像素元件
    • EP3293965A1
    • 2018-03-14
    • EP16188363.2
    • 2016-09-12
    • Siemens Healthcare GmbHIMEC vzwKatholieke Universiteit Leuven
    • TEDDE, Sandro FrancescoKUTH, Rainer
    • H04N5/32H04N5/355H04N5/374H04N5/243H04N5/235
    • H04N5/32H04N5/355H04N5/3559
    • The invention relates to a method for operating a radiation sensing pixel element (30) of an array (12) of radiation sensing pixel elements (30) of an image sensor apparatus (10), wherein the method comprises: sensing radiation with a photo diode (16); storing electric charge supplied by the photo diode (16), when the photo diode (16) is subjected to the radiation, in a pixel capacitor (18) connected with the photo diode (16); providing a pixel amplifier output signal at an output link (24) of a pixel amplifier (20) having an input link (22) connected with the pixel capacitor (18), wherein the pixel amplifier output signal depends on an amount of the electric charge stored in the pixel capacitor (18); and providing a pixel output signal at a pixel output link (36) of the radiation sensing pixel element (30) by a pixel selector transistor (26) dependent on the pixel amplifier output signal and a selector control signal of an analyzing circuitry (32) of the image sensor apparatus (10) in order to supply the pixel output signal to the analyzing circuitry (32); wherein the method also comprises controlling a gain defining the dependency between the pixel output signal and the amount of the electric charge stored in the pixel capacitor (18).
    • 本发明涉及一种用于操作图像传感器装置(10)的辐射感测像素元件(30)的阵列(12)的辐射感测像素元件(30)的方法,其中该方法包括:用光电二极管 (16); 当光电二极管(16)受到辐射时,在与光电二极管(16)连接的像素电容器(18)中存储由光电二极管(16)提供的电荷; 在具有与像素电容器(18)连接的输入链路(22)的像素放大器(20)的输出链路(24)处提供像素放大器输出信号,其中像素放大器输出信号取决于电荷量 存储在像素电容器(18)中; 以及根据像素放大器输出信号和分析电路(32)的选择器控制信号,通过像素选择晶体管(26)在辐射感测像素元件(30)的像素输出链路(36)处提供像素输出信号, 以将所述像素输出信号提供给所述分析电路(32);以及将所述像素输出信号提供给所述分析电路(32)。 其中所述方法还包括控制限定所述像素输出信号与存储在所述像素电容器(18)中的所述电荷量之间的所述依赖性的增益。