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    • 10. 发明授权
    • Sub-frame tapered reset
    • 子框架锥形复位
    • US08488025B2
    • 2013-07-16
    • US12582316
    • 2009-10-20
    • Ying HuangGiuseppe RossiLester Joseph KozlowskiLaurent BlanquartQianjiang MaoGregory Chow
    • Ying HuangGiuseppe RossiLester Joseph KozlowskiLaurent BlanquartQianjiang MaoGregory Chow
    • H04N5/217H04N5/335
    • H04N5/363H04N5/343H04N5/3532H04N5/374H04N5/3765
    • Systems and methods are provided that facilitate employing a plurality of independent reset buses for a column of pixels in a pixel array of a CMOS sensor imager. Utilization of the plurality of independent reset buses for the column of pixels can enable independent reset to be effectuated when employing sub-frame integration. For example, rows to be read and reset during a given readout time interval can be selected based upon one or more criteria. Further, each of the rows selected during the given readout time interval can be associated with a respective distinct reset bus. By leveraging the plurality of independent reset buses, uniformity in pixel operation can be maintained whether operating in full frame integration mode or sub-frame integration mode. Thus, noise resultant from changing between integration modes can be mitigated by using the plurality of independent reset buses.
    • 提供了系统和方法,其便于对CMOS传感器成像器的像素阵列中的像素列采用多个独立的复位总线。 对于像素列,多个独立复位总线的利用可以使得在采用子帧集成时能够实现独立的复位。 例如,可以基于一个或多个标准来选择在给定的读出时间间隔期间要读取和复位的行。 此外,在给定读出时间间隔期间选择的每行都可以与相应的不同的复位总线相关联。 通过利用多个独立的复位总线,无论是在全帧集成模式还是子帧集成模式下操作,都可以保持像素操作的均匀性。 因此,可以通过使用多个独立复位总线来减轻由积分模式之间变化引起的噪声。