Adaptive operation type low noise television system
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United States of America Patent
Stats
-
Jul 6, 1993
Grant Date -
N/A
app pub date -
Nov 20, 1990
filing date -
Nov 20, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cooperative adaptive low noise television system provides that, prior to transmission, the composite video is separated into chroma and luminance components. The luminance signal is adaptively pre-emphasized, with the amount of pre-emphasis being determined by the luminance transitions level, so that small transitions have more pre-emphasis than large ones. In the receiver, a received luminence signal is submitted to adaptive deemphasis in order to precisely cancel the adaptive pre-emphasis provided prior to transmission, thus reducing transmission noise while restituting a luminance signal free of pre-shoot, over-shoot or resolution losses.
First Claim
Family
International Classification(s)
Cited Art Landscape
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