| 摘要 |
PROBLEM TO BE SOLVED: To output a high-definition digital image signal by simultaneous AD translation by performing the AD translation quickly and at a low burden without increasing the scale of a pixel array part and an optical system. SOLUTION: The pixel array part 110 has a photoelectric converter and a pixel transistor for each pixel 111 and outputs an analog pixel signal. An AD memory part 130 is constituted by arranging a unit memory 131 in two-dimensional arrangement corresponding to each pixel arrangement of the pixel array part 110, sequentially accumulates the analog pixel signals read through a perpendicular signal line and performs various kinds of processing (for example, solid-state pattern noise removal and gain adjustment, etc. by CDS) including the AD conversion. AD conversion circuits 132 are provided to each unit memory 131 of the Ad memory part 130 and the analog pixel signal read from each pixel by the AD conversion circuit 132 is converted to a digital pixel signal. COPYRIGHT: (C)2006,JPO&NCIPI
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