Image sensing system with electronic shutter and equal field exposure times in frame readout mode

摘要

A control circuit for a solid state image sensing device which is capable of reading out signal charges in a field storage system and frame storage system and is provided with an electronic shutter for controlling a signal charge storage time in accordance with a shutter pulse for discharging the charges. A time lag is provided between timings of readout gate pulses in each field period for pixels of odd and even rows in a field storage system. A storage time adjusting circuit is provided for correcting the time lag between the signal charge storage times for the pixels in the even and odd rows when the signal charges are read out in the frame storage system. Thus, it is possible to prevent generation of flicker causes by a change in signal charge storage time due to the time lag in each field period between the readout gate pulses for the even field and the odd field in reading out the signal charges in the frame storage system.