Apparatus and method for eliminating artifacts in active pixel sensor (APS) imagers
    1.
    发明授权
    Apparatus and method for eliminating artifacts in active pixel sensor (APS) imagers 有权
    用于消除有源像素传感器(APS)成像器中伪像的装置和方法

    公开(公告)号:US06803958B1

    公开(公告)日:2004-10-12

    申请号:US09522287

    申请日:2000-03-09

    IPC分类号: H04M5335

    摘要: An active pixel sensor (APS) that includes circuitry to eliminate artifacts in digital images. The APS includes a comparator for comparing a signal level from a pixel to an adjusted saturation voltage to determine if the pixel is saturated. If the pixel is saturated, the signal output from the pixel is replaced with an analog voltage having a maximum value corresponding to a brightest pixel in the image.

    摘要翻译: 一种有源像素传感器(APS),包括消除数字图像中伪像的电路。 APS包括比较器,用于将来自像素的信号电平与调整的饱和电压进行比较,以确定像素是否饱和。 如果像素饱和,则从像素输出的信号被替换为具有对应于图像中最亮像素的最大值的模拟电压。

    Solid state imaging device and a method of driving the same
    2.
    发明授权
    Solid state imaging device and a method of driving the same 失效
    固态成像装置及其驱动方法

    公开(公告)号:US06248133B1

    公开(公告)日:2001-06-19

    申请号:US08631834

    申请日:1996-04-10

    IPC分类号: H04M5335

    CPC分类号: H01L27/14806

    摘要: A solid state imaging device has: a first polysilicon layer 901; a second polysilicon layer 902; a photoelectric converting portion or PD 903; a read gate 904; a read channel 905 (in this case, an N-layer) which is formed in a semiconductor below the read gate; a P-layer 906 which prevents a signal charge from erroneously entering a VCCD of a unit pixel adjacent in a horizontal direction; a P-layer 907 which defines the transfer channel region of a VCCD; and a VCCD 908 which transfers a signal charge in the direction of the arrows. A unit pixel 900 is indicated by a one-dot chain line. The two-dimensionally arrayed solid state imaging device is driven by driving pulses of eight phases in total, namely, a driving pulse &phgr;V1 911, a driving pulse &phgr;V2 912, a driving pulse &phgr;V3 913, a driving pulse &phgr;V4 914, a driving pulse &phgr;V5 915, a driving pulse &phgr;V6 916, a driving pulse &phgr;V7 917, and a driving pulse &phgr;V8 918.

    摘要翻译: 固态成像装置具有:第一多晶硅层901; 第二多晶硅层902; 光电转换部分或PD 903; 读门904; 在读取栅极下方形成半导体的读通道905(在这种情况下为N层); P层906,其防止信号电荷错误地进入水平方向相邻的单位像素的VCCD; 限定VCCD的传输通道区域的P层907; 以及VCCD 908,其沿箭头方向传送信号电荷。 单位像素900由单点划线表示。 二维排列的固态成像装置由驱动脉冲phiV1 911,驱动脉冲phiV2 912,驱动脉冲phiV3 913,驱动脉冲phiV4 914,驱动脉冲phiV5 驱动脉冲phiV6 916,驱动脉冲phiV7 917,驱动脉冲phiV8 918。