公开(公告)号：US08072518B2

公开(公告)日：2011-12-06

申请号：US12235698

申请日：2008-09-23

申请人： Yuichiro Araki ,  Takahisa Ueno ,  Junichi Iutsuka ,  Nozomu Takatori ,  Yasuaki Hisamatsu

发明人： Yuichiro Araki ,  Takahisa Ueno ,  Junichi Iutsuka ,  Nozomu Takatori ,  Yasuaki Hisamatsu

IPC分类号： H04N3/14 ,  H04N5/335

CPC分类号： H04N5/335 ,  H04N5/3575 ,  H04N5/37455 ,  H04N5/378

摘要： A solid-state imaging includes a comparing circuit, an inverting circuit, and a masking circuit, and performs column parallel AD conversion processing of analog pixel signals outputted from a plurality of pixels arranged in a two-dimensional matrix form. The comparing circuit outputs a difference signal obtained by comparing each of the pixel signals outputted from the pixels with a reference signal having a ramp waveform. The inverting circuit inverts a logic of the difference signal outputted from the comparing circuit. The masking circuit masks an output of an output signal of the inverting circuit to a circuit in a subsequent stage during an input offset canceling period in which the comparing circuit is canceling an input offset between the pixel signal and the reference signal.

摘要翻译： 固态成像包括比较电路，反相电路和掩蔽电路，并且执行从以二维矩阵形式排列的多个像素输出的模拟像素信号的列并行AD转换处理。 比较电路输出通过将从像素输出的每个像素信号与具有斜坡波形的参考信号进行比较而获得的差分信号。 反相电路使从比较电路输出的差分信号的逻辑反相。 在比较电路取消像素信号和参考信号之间的输入偏移的输入偏移消除期间，屏蔽电路将反相电路的输出信号的输出屏蔽到后续电路中的电路。