| 摘要 |
<p>The invention relates to image sensors in the form of a signal-integrating, moving multi-line linear array for the synchronized reading of the same linear image in succession by N lines of P photo-sensitive pixels and the summation, pixel by pixel, of the signals read by the various lines. According to the invention, at the start of a photogenerated-charge integration time, the voltage is applied to the photodiode of the pixel of an intermediate line of rank i, this voltage being the output voltage of a pixel of a previous line of rank i-1, the photodiode is isolated, the charges due to the light are integrated therein and, finally, at the end of integration time, the charges on the photodiode are transferred to a storage node (N2) of the pixel. A charge-voltage conversion circuit (T4, T5) converts the charges on the storage node into a pixel output voltage. Thus, before photogenerated charges are integrated in each pixel, the photodiode receives a charge equivalent to an accumulation of charges coming from the previous pixel lines that observed the same line of the scene.</p> |
