ATV television system with reduced co-channel NTSC interference
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United States of America Patent
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-
Mar 1, 1994
Grant Date -
N/A
app pub date -
Apr 8, 1992
filing date -
Apr 8, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system for minimizing co-channel interference into NTSC receivers from digitally transmitted ATV signals. The NTSC receiver subjective random noise sensitivity characteristic is utilized to shape the ATV transmitter power curve. A complementary filter incorporated in ATV receivers for compensating for the shaped ATV transmitter power curve. The shaped ATV power curve emphasizes signals at the frequencies where the NTSC subjective random noise sensitivity is low and deemphasizes signals at the frequencies where the NTSC subjective sensitivity is high.
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Family
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Cited Art Landscape
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