| 摘要 |
PURPOSE:To reduce the deterioration in the S/N ratio of a television signal, by reading out smear for n-line's share at the same time, in a solid-state image pickup device taking smear countermeasures into account. CONSTITUTION:A charge coupling element 3 and a photo detecting section 4 arranged in horizontal direction are provided with a part comprising n-line 5 being >=1 line without any light shield section or photoelectric converting element, and the signal charge for n-line's share with light shielded is stored and accumlated at first in a charge coupling element 3 read out horizontally. Then, the transfer of the charge coupling element in the vertical direction with pulses 21', 22' and the readout with the charge coupling element in the horizontal direction with a pulse 23 are repeated, allowing to output smear multiplied by (n) to an output signal 24'. After the smear component is multiplied by 1/n, it is eliminated so as to decrease the deterioration in the S/N ratio of a television signal. |
