ATV television system with reduced co-channel NTSC interference

Details ATV television system with reduced co-channel NTSC interference ATV television system with reduced co-channel NTSC interference

1992-04-08

1994-03-01

Kostak, Victor R.

Television

Television transmitter circuitry

348469, H04N 704, H04N 538

Patent

active

052912914

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.

REFERENCES:
patent: 5087975 (1992-02-01), Citta et al.
patent: 5103310 (1992-04-01), Gibson et al.
patent: 5127021 (1992-06-01), Schreiber
patent: 5151785 (1992-09-01), Citta

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