| 摘要 |
An image sensing device has an image cell (ICn) with a photo-sensitive element (< PHI >D), a detection node (C) and an output pin. <??>Charges accumulated during a first period of time are transferred from the photo-sensitive element (< PHI >D) to the detection node (C), thereby obtaining a first voltage, and kept on the detection node (C) which is thus used as a memory. <??>Some moments later, a first value corresponding to the first voltage is generated on the output pin, charges accumulated during a second period of time are transferred from the photo-sensitive element (< PHI >D) to the detection node (C), thereby obtaining a second voltage, and a second value is generated on the output pin corresponding to the second voltage. <??>The signal thus generated is also proposed. <IMAGE>
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