| 摘要 |
PURPOSE:To reproduce the picture of a high color saturation degree by circulating three times the storage contents delivered in parallel from the 1st line memory in the form of a serial output/serial input and displaying said contents on a CRT after reading them in a writing speed triple as high as the 1st line memory. CONSTITUTION:The video signal supplied to a terminal 15 is fed in series to the 1st line memory 16 which stores the signal information of a 1H period formed by a CCD. Then this stored information is delivered in parallel to the 2nd line memory 17. The reading speed of the memory 17 is set at a level triple as high as the writing speed of the memory 16. The read-out information is supplied again to the memory 17 via a feedback loop 18. This information is written twice, and the video signal impressed to the terminal 15 is compressed down to 1/3 in terms of time to be delivered three times to the output terminal of the memory 17. This output is supplied to a signal processing circuit 19. The circuit 19 reproduces only red, green and blue chrominance signals at the 1st, 2nd and 3rd times respectively. These reproduced chrominance signals are sent to a thin color CRT20 and displayed on the screen. |
