TV receiver image signal modification device - uses memory in which signal with first vertical-horizontal ratio is entered and interpolated on read=out to obtain second horizontal-vertical ratio

摘要

The image signal modification device allows a received image signal with a vertical/horizontal ratio to be adjusted for a television screen with a different second vertical/horizontal ratio. The received signal is entered in a memory and is read from the memory using read-out addresses generated for the second vertical/horizontal ratio with image point interpolation, using addition of a signal for each actual line with the signal for the next line. USE/ADVANTAGE - For altering vertical-horizontal ratio of image signal without introducing image distortion.