| 摘要 |
PURPOSE:To change over the system of the standard signal of a television without using a processing circuit large in circuit scale such as a field memory by stopping periodically the driving of an image pick-up element and converting the number of lines of a signal by an interpolating circuit. CONSTITUTION:When the changing-over is selected to PAL, it is controlled to come to be an interpolating pattern to adapt an interpolating circuit 3, a gate circuit 6 is controlled and an image pick-up element driving pulse is stopped at the rate of one time of four times. Thus, the scanning of 625 pieces can be executed from the solid-state image pick-up element of the vertical line number 500. Simultaneously, the number of fields are 50 pieces coincident to a driving pulse generating circuit 8 and the scanning can be attained. When the changing-over is selected to NTSC, a changing-over control circuit 7 selects the interpolating circuit 3 to a pattern without interpolation, and a gate circuit 6 sends the pulse of a driving pulse generating circuit to a solid-state image pick-up element 1 as it is.
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