Patent ID: 6137486
Filing Date: 2000-10-24
Classification: H04N

Abstract:
An image display control device for preventing viewing of video scenes included among video signals capable of being viewed on a television regarded as educationally inappropriate, comprising:an extractor for extracting from a video signal first restrict data which has been multiplexed onto the video signal in a predetermined vertical retrace period thereof, said first restrict data representing any one of a plurality of display restrict levels ranging from a strict display restrict level for preventing viewing of video scenes regarded as educationally inappropriate to a lenient display restrict level;a register in which is set second restrict data representing any one of the plurality of display restrict levels;a display controller for comparing display restrict levels of the first restrict data and the second restrict data, prohibiting display of the video data on a television display when a display restrict level of the first restrict data is stricter than a display restrict level of the second restrict data, and permitting display of the video data on a television display when the display restrict level of the first restrict data is more lenient than the display restrict level of the second restrict data; anda restrict level display controller for controlling the display controller to display on the television display the difference between the display restrict level of the first restrict data and the display restrict level of the second restrict data, based on a comparison between the first and second restrict data performed by the comparator.