초록 ▼

An image pickup device includes a decision circuit for comparing a signal amount stored in each pixel of a solid-state image pickup element with a predetermined signal amount which is set in advance, thereby deciding which of the two signal amounts is larger, a time measuring circuit for measuring a

An image pickup device includes a decision circuit for comparing a signal amount stored in each pixel of a solid-state image pickup element with a predetermined signal amount which is set in advance, thereby deciding which of the two signal amounts is larger, a time measuring circuit for measuring a time required for the signal amount stored in each pixel to reach the predetermined signal amount, and an operating circuit for operating the stored signal of the pixel whose stored signal amount is found to be larger than the predetermined signal amount by the decision circuit, on the basis of the time information obtained from the time measuring circuit.

대표청구항 ▼

[ What is claimed is:] [1.] An image pickup device comprising:indication means for producing an indication signal when a signal amount accumulated in each pixel of a solid-state image pickup element reaches a predetermined signal amount which is set in advance;time measuring means for measuring a ti

[ What is claimed is:] [1.] An image pickup device comprising:indication means for producing an indication signal when a signal amount accumulated in each pixel of a solid-state image pickup element reaches a predetermined signal amount which is set in advance;time measuring means for measuring a time period from a start of accumulation in a pixel of a signal to a time when said indication signal is produced by said indication means and outputting time information corresponding to the time period; andcalculation means for calculating an accumulation signal amount of the pixel at a predetermined subsequent timing based on the time information output from said time measuring means.