Apparatus and methods for synthesizing foreground and background images
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United States of America Patent
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Feb 13, 2001
Grant Date -
N/A
app pub date -
Mar 13, 1998
filing date -
Mar 13, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus and method for improving the clarity of a picture produced from a video signal. A differentiation circuit is provided that produces a responsive correction signal. Mechanisms for adjusting the shape (width, amplitude, etc.) of the correction signal are disclosed. Disabling the correction signal during blanking intervals and synchronization is also disclosed, among other features.
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