Closed-caption scrolling method and apparatus suitable for syllable characters

摘要

A closed-caption scrolling method and apparatus suitable for displaying a closed caption including syllable characters and capable of reducing the memory capacity. According to the method, the caption signal is encoded in a line of each field of a broadcasting television signal which does not affect the broadcasting signal, and then transmitted to be displayed on a screen of a receiver. A control code for controlling the size of a scroll region and the scrolling direction is produced, so that character information following the control code is displayed on the predetermined scroll region, being scrolled in a predetermined direction, by the control code.