Television receiver for selectively blocking video signal samples via stored blanking signals
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United States of America Patent
Stats
-
Jun 2, 1992
Grant Date -
N/A
app pub date -
Oct 1, 1990
filing date -
Oct 11, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a television receiver which comprises a video memory for noise reduction, large-area flicker reduction, still pictures and the like, an additional picture is generated by also storing its pixels in the video memory. The pixels of the additional picture are generated once by a pixel generator protected from being overwritten by the video signal applied at a field frequency of 50 hz by also storing a blanking bit for each pixel, preventing the pixel from being overwritten by the video signal. The additional picture may be, for example, a teletext page or an operating menu.
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Family
International Classification(s)
Cited Art Landscape
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