Apparatus and method for increasing readout speed of a solid state imager
    1.
    发明授权
    Apparatus and method for increasing readout speed of a solid state imager 有权
    一种用于提高固态成像仪的读出速度的装置和方法

    公开(公告)号:US07565033B2

    公开(公告)日:2009-07-21

    申请号:US10219771

    申请日:2002-08-16

    IPC分类号: G06K9/54 H04N3/14

    CPC分类号: H04N5/378 H04N5/3742

    摘要: An imaging system features high speed digitization of pixel signals by utilizing top and bottom digitization circuits which pipeline sample-and-hold operations with analog-to-digital conversion. In operation, while one digitization circuit is performing a sample-and-hold operation, the other digitization circuit is performing analog-to-digital conversion. The speed of the imaging system may be further increased by pipelining and interleaving operations within the top and bottom digitization circuits by using additional sets of sample-and-hold circuits and analog-to-digital converters.

    摘要翻译: 成像系统通过利用顶部和底部数字化电路来实现像素信号的高速数字化,这些数字化电路通过模数转换来管理采样和保持操作。 在操作中,当一个数字化电路正在执行采样和保持操作时,另一个数字化电路正在执行模数转换。 通过使用附加的采样保持电路和模数转换器组,通过在顶部和底部数字化电路内的流水线和交错操作可以进一步增加成像系统的速度。