Information input apparatus

摘要

CCD type charge transfer sections include vertical charge transfer sections and horizontal charge transfer sections having stages twice the number of lines of the vertical charge transfer sections. The horizontal charge transfer sections have a capacity capable of holding charges twice the number of lines of the vertical charge transfer sections. A controller controls an area image sensor to arrange charges of an object image corresponding to an irradiated state and charges of the object image corresponding to a non-irradiated state in the vertical charge transfer sections, and to transfer charges for two pixels per vertical charge transfer section to the horizontal charge transfer sections to hold the charges.