| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that an offset component is also added in the case of a summing operation of a pixel signal in an optoelectric transducer having amplifiers at every signal line connecting a plurality of pixels in common. SOLUTION: Signals output from a plurality of the pixels and the offset component generated in a circuit are stored in the feedback capacity of an inverting amplifier. The pixel signal and the offset component are held to one of two capacities fitted at the post-stage of the inverting amplifier, and only the offset component is held to the other capacity. The difference of voltages held by both capacities fitted at the post-stage of the inverting amplifier is output. COPYRIGHT: (C)2008,JPO&INPIT
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