초록 ▼

A solid state image pickup apparatus for removing noise includes a plurality of photoelectric transducer cells, and first and second switch circuitry. Signal readout lines are provided for reading out signals from the plurality of transducer cells. A plurality of first capacitors, each connected to

A solid state image pickup apparatus for removing noise includes a plurality of photoelectric transducer cells, and first and second switch circuitry. Signal readout lines are provided for reading out signals from the plurality of transducer cells. A plurality of first capacitors, each connected to one of the signal readout lines through the first switch circuitry, are provided for selectively storing first signals read out through the signal lines and the first switch circuitry after a predetermined accumulation period. A plurality of second capacitors, each connected to one of the signal read out lines through the second switch circuitry, are provided for selectively storing second signals corresponding to dark current signals read out through the signal read out lines and the second switch circuitry. Output circuitry is provided for cancelling dark current signals included in all of the first signals by subtracting each second signal from a corresponding first signal, and for outputting all of the first signals from which the dark current signals are cancelled.

대표청구항 ▼

[ What is claimed is:] [1.] A photoelectric transducer apparatus comprising:a plurality of photoelectric transducer cells;signal readout lines for reading out signals from said plurality of photoelectric transducer cells;first and second switch means;a plurality of first capacitors, each connected t

[ What is claimed is:] [1.] A photoelectric transducer apparatus comprising:a plurality of photoelectric transducer cells;signal readout lines for reading out signals from said plurality of photoelectric transducer cells;first and second switch means;a plurality of first capacitors, each connected to one of said signal readout lines through said first switch means, for selectively storing first signals read out through said signal readout lines and said first switch means after a predetermined accumulation period;a plurality of second capacitors, each connected to one of said signal readout lines through said second switch means, for selectively storing second signals corresponding to dark current signals readout through said signal readout lines and said second switch means; andoutput means for cancelling dark current signals included in the first signals by subtracting each second signal from a corresponding first signal, and for outputting the first signals from which the dark current signals are cancelled.