A line transfer color image sensor with 576 × 462 pixels

Abstract

A SINGLE-CHIP image sensor for color cameras can be achieved by using different arrangements: e.g., CCDs in frame transfer or interline, or MOS XY addressing. Each type has well known merits and demerits. Another structure, which employs a MOStype photosensor and a CTD-type readout shift register, has been proposed"2. Each row of pixels is selected line after line by a vertical MOS shift register and transferred via vertical buses to a readout CCD. The line transfer offers many advantages, but has drawbacks concerning either a loss of resolution at low light levels or a too large noise.intended for 625-line single-chip color TV cameras, with an imaging area corresponding to that of a 2/3" vidicon