Process for the insertion of a supplementary video information set outside a main image
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United States of America Patent
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Oct 19, 1993
Issued Date -
N/A
app pub date -
Jun 4, 1992
filing date -
Aug 23, 1989
priority date (Note) -
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Abstract
A method for displaying a supplementary video image outside a main image. For example, the main image has a 4/3 aspect ratio and the tube has a 16/9 aspect ratio. The method includes steps of processing a supplementary video image at the time of the line return of the main image to provide a video signal of the desired format. Then, multiplexing the components of the main video signal with the components of the supplementary video signal; and then separately processing the components of the multiplexed signal to produce the components of the display signal for a display on the tube. The displayed image has the main 4/3 aspect ratio image in 4/3 aspect ratio occupying approximately 12/9 of the screen and supplementary video images occupying the remaining 4/9 of the screen.
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