| 摘要 |
PURPOSE:To obtain the smear component with high S/N by stopping a horizontal charge coupling element and operating a vertical charge coupling element only after all signal charges of one field are read out, in an interline charge coupling solid-state image pickup device. CONSTITUTION:When the signal charge from all lines is read out of a CCD 3 after the end of one field period, the signal charge is not included in the uppermost line 31 of the vertical CCD yet. But, the smear component leaked while the charge is transferred as 3N-31 in the vertical CCD is stored therein. Thus, when a pulse phiH of the horizontal CCD is stopped and the transfer for a line's share is performed to the vertical CCD with a pulse 31' of phiv1, phiv2, for example, after the signal charge is transferred from the photoelectric converting element to the vertical CCD with a switching pulse 25, the smear nXs multiplied by (n) is outputted to the output signal 24' during the 1st one horizontal period, by repeating the transfer of the vertical CCD transfer and the readout by the horizontal CCD with pulses 21', 22', 23. |
