Photosensitive cell reading method, involves charging cells simultaneously in row and capacitor with resulting charge that is function of difference between two currents, respectively corresponding to conversion of two voltages

摘要

The method involves charging cells simultaneously in a row and a capacitor with a resulting charge that is a function of the difference between a reference and image currents, respectively corresponding to conversion of reference and image voltages. The capacitor charge for the cell column is measured. An Independent claim is also included for a device of reading cells of an array of photosensitive cells arranged in lines and columns.