Device for transparently displaying characters in a video system by forming a weighted average of a video signal and the video signal after text has been inserted
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United States of America Patent
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Feb 11, 1997
Issued Date -
N/A
app pub date -
May 6, 1996
filing date -
Mar 12, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for displaying characters in a video system, the characters being able to be displayed transparently against a background consisting of the normal television image. The device inserts the text into the original video signal, then forms the weighted average of the signal including the text and the original video signal.
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