| 摘要 |
PURPOSE:To obtain a signal equivalent to the signal obtained by driving an image pickup element pickup element with a high clock by providing a solid state image pickup element for simultaneous read-out of horizontal (n) lines and a 2n-line buffer memory to write a read signal to the memory with he same frequency as a clock pulse and to drive the pickup element with a low clock. CONSTITUTION:An image pickup device contains a solid state image pickup element 1 for simultaneous read-out of horizontal (n) lines. A pulse theta5 is applied to the element 1 from a clock generator 2 to drive the image pickup device. Then 2n-line buffer memories 3-6 are connected to the element 1, and a video output A of the element 1 is supplied to memories 3 and 5. While a video output B is supplied to memories 4 and 6. These outputs A and B are used as video signals of even and odd lines. Then outputs A and B are written to memories 3-6 with clock pulses theta1-theta4 of the same frequency as the pulse theta5 of the generator 2. The outputs of memories 3-6 are read out to a selectror 7, and the element 1 is driven with a low clock pulse to deliver a video signal equivalent to the one obtained by driving the element 1 with a high clock pulse. This simplifies the production of an image pickup element.
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