When a signal is read from a CCD solid-state image pickup element, the CCD
solid-state image pickup element is driven with at least two driving
voltages so that high-speed reading is performed with generation of noise
due to interference between the driving voltages reduced. The CCD
solid-state image includes a charge storage section between a vertical
transfer register and a horizontal transfer register. By performing the
transfer of charge in the direction of columns during an effective
transfer period of the transfer in the direction of rows, signal charge
of one row generated by a light receiving sensor is transferred to the
charge storage section, and by performing the transfer outside the
effective transfer period in the transfer in the direction of the row,
the signal charge of one row transferred to the charge storage section is
transferred to the horizontal transfer register.