Video field decoder
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United States of America Patent
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-
Apr 28, 1987
Grant Date -
N/A
app pub date -
Dec 28, 1984
filing date -
Dec 28, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A video field decoder is provided in a raster scan interlaced video display system, which decoder provides an indication of whether the odd or even field is currently being displayed. The decoder circuit compares the horizontal and vertical sync signals and provides an output on their coincidence, indicating a given field level (odd or even) is being displayed.
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Cited Art Landscape
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