Solid-state electronic image sensing device and method of controlling operation of same

摘要

A sweep-out drain is provided in parallel with a horizontal transfer line via a drain gate. When vertical one-half downsampling is performed, signal charge that has accumulated in the photodiodes of (4m+3) th and (4m+4) th rows is shifted to vertical transfer lines and is output from the horizontal transfer line as a video signal. Signal charge that has accumulated in the photodiodes of (4m+1) th and (4m+2) th rows is not shifted to the vertical transfer lines. If signal charge (smear charge) that has accumulated in the photodiodes of the (4m+1) th and (4m+2) th rows leaks into the vertical transfer lines owing to a brightly illuminated subject, the smear charge is swept out from the sweep-out drain via the drain gate. A video signal from which smear charge has been eliminated is obtained.