| 摘要 |
PURPOSE:To write an interlace signal and a non-interlace signal into a frame memory equally and allow the data to be read and printed by a reading means of a single system by storing an interlace image and a non-interlace image in field memories A, B alternately every time V(vertical synchronous signal) is issued at the time of entry of the interlace signal and H(horizontal synchronous signal) is issued at the time of entry of a non-interlace image. CONSTITUTION:When a non-interlace signal is written in an image memory, an odd-number field image of interlace image is stored in a field memory A, and also an even-number field image is stored in a field memory B. When a non-interlace image is written in an image memory, 1H th field image is written in the field memory A, 2H th field image in the field memory B, odd- number H-th field image in the field memory A and even-number H-th field image in the field memory B respectively. At that time, a signal for selecting the field memories A, B every time H-th field image appears is created by a means for selection of field memories per H-th field image and the field memory A is switched to the field memory B. In addition, the interlace signal can be written in the field memories A, B as can be the non-interlace signal to perform printing. |
