| 摘要 |
In a method of generating an enlarged image signal by the use of a field memory, an image signal enlargement processing cycle constituted by n-th to (n+5)-th fields is repeated so that each one field of image signals read in the order of the n-th to (n+5)-th is sequentially processed by a signal processing circuit into video image signals. The signals are supplied by interlaced scanning to a video image reproducer such as an external television or video projector so that an image is displayed on a display screen in the order of an odd-line field and an even-line field. An area to be enlarged is sequentially written into an odd-line block and an even-line block of a field memory and can continuously be moved on the basis of a designation signal from a microcomputer, so that an enlarged image can be scrolled on the display screen.
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