Invention Grant
US07675559B2 Image sensing apparatus having a two step transfer operation and method of controlling same 有权
具有两步传送操作的图像感测装置及其控制方法

Image sensing apparatus having a two step transfer operation and method of controlling same
Abstract:
Disclosed is an image sensing apparatus comprising a plurality of two-dimensionally arrayed pixels each having a photodiode and a floating diffusion area for temporarily storing a charge signal that has accumulated in the photodiode; an output unit that outputs the charge signal, which has been transferred to the floating diffusion area, successively pixel by pixel; a scanning unit having a reset mode for resetting the photodiodes and floating diffusion areas successively by prescribed unit, a first transfer mode for transferring the charge signal, which has accumulated in the photodiodes, to the floating diffusion areas successively by the prescribed unit at prescribed time intervals upon lapse of a prescribed period of time from start of reset, and a second transfer mode for transferring the charge signal, which has been transferred to the floating diffusion areas, to the output unit. Before operation of the second transfer mode is performed with respect to a plurality of the prescribed units, the scanning unit transfers the charge signal, which has accumulated in the photodiodes, to the floating diffusion areas successively by the prescribed unit at the prescribed time intervals with respect to the plurality of prescribed units.
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