| 摘要 |
PURPOSE:To obtain a signal with high quality through the use of a circuit of low speed, by providing a plurality of signal output lines for a solid-state image pickup element, and picking up output signals at the same time and subjecting to A/D conversion, by decreasing a sampling period and a sampling time width. CONSTITUTION:When a vertical scanning circuit 24 and a horizontal scanning circuit 25 are sequentially driven with adriving pulse signals phiV and phiH, a readout signal is respectively applied to control lines V1-Vm and H1-He. Thus, an output signal of adjacent photo diodes is picked up always at output terminals 22 and 23. When this signal is processed with a sampling signal SP of the same frequency at A/D converters 31 and 32, doubled picture elements can simultaneously be processed. Thus, when the output terminal and the A/D converters are increased in number as each two or three and two or more picture elements can be picked up at the output terminals at the same time, then the amount of information to be processed with the same sampling signal can be increased to N times proportionally. |
